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Definitions

• the present invention is directed to the use of the peptide compound Pyr-Gly-Leu-Pro-Pro-Arg-Pro-Lys-Ile-Pro-Pro-OH (Bradykinin Potentiator B) as a therapeutic agent for the prophylaxis and/or treatment of cancer, autoimmune diseases, fibrotic diseases, inflammatory diseases, neurodegenerative diseases, infectious diseases, lung diseases, heart and vascular diseases and metabolic diseases.
• Brainkinin Potentiator B peptide compound Pyr-Gly-Leu-Pro-Pro-Arg-Pro-Lys-Ile-Pro-Pro-OH
• the identification of a therapeutic compound effective for the prophylaxis and/or treatment of a disease can be based on the activity of the compound in a biological assay.
• a biological assay that mimics a disease causative mechanism can be used to test the therapeutic activity of a candidate peptide.
• the causative mechanism of many diseases is the over activity of a biological pathway.
• a peptide that can reduce the activity of the biological pathway can be effective in the prophylaxis and/or treatment of the disease caused by the over activity of the biological pathway.
• the causative mechanism of many diseases is the over production of a biological molecule.
• a peptide that can reduce the production of the biological molecule or block the activity of the over produced biological molecule can be effective in the prophylaxis and/or treatment of the disease caused by the over production of the biological molecule.
• the causative mechanism of many diseases is the under activity of a biological pathway.
• a peptide that can increase the activity of the biological pathway can be effective in the prophylaxis and/or treatment of the disease caused by the under activity of the biological pathway.
• the causative mechanism of many diseases is the under production of a biological molecule.
• a peptide that can increase the production of the biological molecule or mimic the biological activity of the under produced biological molecule can be effective in the prophylaxis and/or treatment of the disease caused by the under production of the biological molecule.
• the present invention relates to the use of the peptide Pyr-Gly-Leu-Pro-Pro-Arg-Pro-Lys-Ile-Pro-Pro-OH (Bradykinin Potentiator B), its use as a therapeutic in medicine and for the prophylaxis and/or treatment of cancer, autoimmune diseases, fibrotic diseases, inflammatory diseases, neurodegenerative diseases, infectious diseases, lung diseases, heart and vascular diseases and metabolic diseases. Also disclosed are pharmaceutical formulations preferably in form of a lyophilisate or liquid buffer solution or artificial mother milk formulation containing the inventive peptide.
• the peptide is especially useful for prophylaxis and/or treatment of Hepatitis B Virus infection, diseases caused by Hepatitis B Virus infection, acute hepatitis, chronic hepatitis, fulminant liver failure, liver cirrhosis, cancer associated with Hepatitis B Virus infection.
• cancer refers also to tumors, proliferative diseases, malignancies and their metastases.
• cancer diseases are adenocarcinoma, choroidal melanoma, acute leukemia, acoustic neurinoma, ampullary carcinoma, anal carcinoma, astrocytoma, basal cell carcinoma, pancreatic cancer, desmoid tumor, bladder cancer, bronchial carcinoma, non-small cell lung cancer (NSCLC), breast cancer, Burkitt's lymphoma, corpus cancer, CUP-syndrome (carcinoma of unknown primary), colorectal cancer, small intestine cancer, small intestinal tumors, ovarian cancer, endometrial carcinoma, ependymoma, epithelial cancer types, Ewing's tumors, gastrointestinal tumors, gastric cancer, gallbladder cancer, gall bladder carcinomas, uterine cancer, cervical cancer, cervix, glioblastomas, gynec
• the peptide of the present invention was tested using the assays described in Examples 1-7, 9-17 for their effect as active therapeutic agents in the prophylaxis and/or treatment of cancer, proliferative diseases, tumors and their metastases.
• the immune system in higher vertebrates represents the first line of defense against various antigens that can enter the vertebrate body, including microorganisms such as bacteria, fungi and viruses that are the causative agents of a variety of diseases.
• viral infections such as influenza virus, human immunodeficiency virus (“HIV”), herpes simplex virus (“HSV”, type 1 or 2), human papilloma virus (“HPV”, type 16 or 18), human cytomegalovirus (“HCMV”) or human hepatitis B or C virus (“HBV”, Type B; “HCV”, type C) infections, remain a serious source of morbidity and mortality throughout the world and a significant cause of illness and death among people with immune-deficiency associated with aging or different clinical conditions.
• HCV human immunodeficiency virus
• HSV herpes simplex virus
• HPV human papilloma virus
• HCMV human cytomegalovirus
• HBV human hepatitis B or C virus
• antiviral chemotherapy with compounds such as amantadine and rimantadine have been shown to reduce the duration of symptoms of clinical infections (i.e., influenza infection), major side effects and the emergence of drug-resistant variants have been described.
• New classes of antiviral agents designed to target particular viral proteins such as influenza neuraminidase are being developed.
• influenza neuraminidase the ability of viruses to mutate the target proteins represents an obstacle for effective treatment with molecules which selectively inhibit the function of specific viral polypeptides.
• bacterial infections are treated with various antibiotics.
• antibiotics have and can be effective in the treatment of various bacterial infections, there are a number of limitations to the effectiveness and safety of antibiotics. For example, some individuals have an allergic reaction to certain antibiotics and other individuals suffer from serious side effects.
• continued use of antibiotics for the treatment of bacterial infections contributes to formation of antibiotic-resistant strains of bacteria.
• Another aspect of the present invention is directed to the use of the peptide for prophylaxis and/or treatment of infectious diseases including opportunistic infections.
• infectious diseases are AIDS, alveolar hydatid disease (AHD, echinococcosis), amebiasis ( Entamoeba histolytica infection), Angiostrongylus infection, anisakiasis, anthrax, babesiosis ( Babesia infection), Balantidium infection (balantidiasis), Baylisascaris infection (raccoon roundworm), bilharzia (schistosomiasis), Blastocystis hominis infection (blastomycosis), boreliosis, botulism, Brainerd diarrhea, brucellosis, bovine spongiform encephalopathy (BSE), candidiasis, capillariasis ( Capillaria infection), chronic fatigue syndrome (CFS), Chagas disease (American trypanosomiasis), chickenpox (Varicella-Zoster virus), Chlamydia pneumoniae infection, cholera, Creutzfeldt-Jako
• Another aspect of the present invention is directed to the use of the peptide for prophylaxis and/or treatment of prion diseases.
• Prions are infectious agents which do not have a nucleic acid genome. It seems that a protein alone is the infectious agent. A prion has been defined as “small proteinaceous infectious particle which resists inactivation by procedures that modify nucleic acids”. The discovery that proteins alone can transmit an infectious disease came as a considerable surprise to the scientific community. Prion diseases are often called “transmissible spongiform encephalopathies”, because of the post mortem appearance of the brain with large vacuoles in the cortex and cerebellum. Probably most mammalian species develop these diseases. Prion diseases are a group of neurodegenerative disorders of humans and animals and the prion diseases can manifest as sporadic, genetic or infectious disorders.
• prion diseases acquired by exogenous infection are bovine spongiform encephalitis (BSE) of cattle and the new variant of Creutzfeld-Jakob disease (vCJD) caused by BSE as well as scrapie of animals.
• BSE bovine spongiform encephalitis
• vCJD Creutzfeld-Jakob disease
• human prion diseases include kuru, sporadic Creutzfeldt-Jakob disease (sCJD), familial CJD (fCJD), iatrogenic CJD (iCJD), Gerstmann-St Hurssler-Scheinker (GSS) disease, fatal familial insomnia (FFI), and especially the new variant CJD (m/CJD or vCJD).
• prion is used to describe the causative agents which underlie the transmissible spongiform encephalopathies.
• a prion is proposed to be a novel infectious particle that differs from viruses and viroids. It is composed solely of one unique protein that resists most inactivation procedures such as heat, radiation, and proteases. The latter characteristic has led to the term protease-resistant isoform of the prion protein. The protease-resistant isoform has been proposed to slowly catalyze the conversion of the normal prion protein into the abnormal form.
• isoform in the context of prions means two proteins with exactly the same amino acid sequence that can fold into molecules with dramatically different tertiary structures.
• the normal cellular isoform of the prion protein (PrP C ) has a high ⁇ -helix content, a low ⁇ -sheet content, and is sensitive to protease digestion.
• the abnormal, disease-causing isoform (PrP Sc ) has a lower a-helix content, a much higher ⁇ -sheet content, and is much more resistant to protease digestion.
• prion diseases refers to transmissible spongiform encephalopathies.
• Examples for prion diseases comprise scrapie (sheep, goat), transmissible mink encephalopathy (TME; mink), chronic wasting disease (CWD; muledeer, deer, elk), bovine spongiform encephalopathy (BSE; cows, cattles), Creutzfeld-Jacob Disease (CJD), variant CJD (vCJD), sporadic Creutzfeldt-Jakob disease (sCJD), familial CJD (fCJD), iatrogenic CJD (iCJD, Gerstmann-St Hurssler-Scheinker syndrome (GSS), fatal familial insomnia (FFI), and kuru.
• BSE transmissible mink encephalopathy
• TBE transmissible mink encephalopathy
• CWD chronic wasting disease
• vCJD chronic wasting disease
• sCJD
• the peptide of the present invention was tested using the assays described in Examples 1-7 for their effect as active therapeutic agents in the prophylaxis and/or treatment of infectious diseases and disorders.
• HBV Hepatitis B Virus
• Hepatitis is an inflammation of the liver that is most often caused by infection with one of five viruses, hepatitis A, B, C, D or E.
• Hepatitis B virus infection may either be acute (self-limiting) or chronic (long-standing). Persons with self-limiting infection clear the infection spontaneously within weeks to months. In cases, particularly in those related to hepatitis B and C, “chronic hepatitis” may result. Chronic hepatitis occurs when the body is unable to completely clear the virus even though the symptoms may not persist.
• Acute infection with hepatitis B virus is associated with acute viral hepatitis—an illness that begins with general ill-health, loss of appetite, nausea, vomiting, body aches, mild fever, dark urine, and then progresses to development of jaundice. It has been noted that itchy skin has been an indication as a possible symptom of all hepatitis virus types. The illness lasts for a few weeks and then gradually improves in most affected people. A few patients may have more severe liver disease (fulminant hepatic failure), and may die as a result of it. The infection may be entirely asymptomatic and may go unrecognized.
• Hepatitis D infection can only occur with a concomitant infection with Hepatitis B virus because the Hepatitis D virus uses the Hepatitis B virus surface antigen to form a capsid.
• Co-infection with hepatitis D increases the risk of liver cirrhosis and liver cancer.
• Polyarteritis nodosa is more common in people with hepatitis B infection.
• Chronic carriers of the HBV have been defined as those who are HBV surface antigen positive for greater than 6 months. Approximately 5-10% of those people who are infected with the virus will become carriers, an estimated 5-10% of those people infected each year will progress to chronic liver disease, cirrhosis and possibly liver cancer. About 5,000 people die in the United States each year related to HBV, 1,000 die of HBV-related liver cancer. The incubation period of HBV usually lasts from 2 to 4 months, although it may be very short (10 days) or extremely long (9 months).
• the tests, called assays, for detection of hepatitis B virus infection involve serum or blood tests that detect either viral antigens (proteins produced by the virus) or antibodies produced by the host.
• the hepatitis B surface antigen (HBsAg) is most frequently used to screen for the presence of this infection. It is the first detectable viral antigen to appear during infection. However, early in an infection, this antigen may not be present and it may be undetectable later in the infection as it is being cleared by the host.
• the infectious virion contains an inner “core particle” enclosing viral genome.
• the icosahedral core particle is made of 180 or 240 copies of core protein, alternatively known as hepatitis B core antigen, or HBcAg.
• IqM antibodies to the hepatitis B core antigen (anti-HBc IgM) may be the only serological evidence of disease.
• HBeAg hepatitis B e antigen
• Carriers of the virus may have chronic hepatitis B, which would be reflected by elevated serum alanine aminotransferase levels and inflammation of the liver, as revealed by biopsy. Carriers who have seroconverted to HBeAg negative status, particularly those who acquired the infection as adults, have very little viral multiplication and hence may be at little risk of long-term complications or of transmitting infection to others. Therefore, the most significant event indicating a chronic course of hepatitis B is the absence of the HBsAg/anti-HBs seroconversion.
• PCR tests have been developed to detect and measure the amount of viral nucleic acid in clinical specimens. These tests are called viral loads and are used to assess a person's infection status and to monitor treatment.
• Chronic infection Treatment of chronic infection is necessary to reduce the risk of cirrhosis and liver cancer.
• Chronically infected individuals with persistently elevated serum alanine aminotransferase, a marker of liver damage, and HBV DNA levels are candidates for therapy.
• Treatments include antiviral drugs such as lamivudine, adefovir and entecavir, telbivudine, and immune system modulators such as interferon alpha.
• antiviral drugs such as lamivudine, adefovir and entecavir, telbivudine, and immune system modulators such as interferon alpha.
• immune system modulators such as interferon alpha.
• some individuals are much more likely to respond than others and this might be because of the genotype of the infecting virus or the patient's heredity, and therefore there is a need for additional therapies.
• the virus is divided into four major serotypes (adr, adw, ayr, ayw) based on antigenic epitopes present on its envelope proteins, and into eight genotypes (A-H) according to overall nucleotide sequence variation of the genome.
• the genotypes have a distinct geographical distribution and are used in tracing the evolution and transmission of the virus. Differences between genotypes affect the disease severity, course and likelihood of complications, and response to treatment. The treatment works by reducing the viral load, (the amount of virus particles as measured in the blood), which in turn reduces viral replication in the liver.
• hepatitis B immune globulin or HBIg antibodies to the hepatitis B virus
• HBIg hepatitis B immune globulin
• the peptides of the present invention was tested using the assays described in Examples 1-7 for their effect as active therapeutic agents in the prophylaxis and/or treatment of infectious diseases and disorders.
• Autoimmune disease refers to any of a group of diseases or disorders in which tissue injury is associated with a humoral and/or cell-mediated immune response to body constituents or, in a broader sense, an immune response to self.
• the pathological immune response may be systemic or organ specific. That is, for example, the immune response directed to self may affect joints, skin, myelin sheath that protects neurons, kidney, liver, pancreas, thyroid, adrenals, and ovaries.
• autoimmune diseases are composed of more than eighty disorders.
• a few autoimmune diseases such as vitiligo, in which patches of skin lose pigmentation, are merely annoying. Most others are debilitating, often progressive with time and eventually fatal.
• Systemic lupus erythematosus SLE
• SLE Systemic lupus erythematosus
• the ratio of female to male patients is nine to one.
• Hashimoto's disease in which the immune system attacks the thyroid gland, the ratio is fifty to one.
• immune complex formation plays a role in the etiology and progression of autoimmune disease.
• inflammation in patients with arthritis has long been considered to involve phagocytosis by leukocytes of complexes of antigen, antibody and complement-immune complexes.
• inflammation caused by immune complexes in the joints arthritis
• the kidneys glomerulonephritis
• blood vessels vaculitis
• Increased immune complex formation correlates with the presence of antibodies directed to self or so-called autoantibodies, and the presence of the latter can also contribute to tissue inflammation either as part of an immune complex or unbound to antigen (free antibody).
• autoimmune diseases the presence of free autoantibody contributes significantly to disease pathology. This has been clearly demonstrated for example in SLE (anti-DNA antibodies), immune thrombocytopenia (antibody response directed to platelets), and to a lesser extent rheumatoid arthritis (IgG reactive rheumatoid factor).
• SLE anti-DNA antibodies
• immune thrombocytopenia immune response directed to platelets
• IgG reactive rheumatoid factor IgG reactive rheumatoid factor
• the important role of immune complexes and free autoantibodies is further demonstrated by the fact that successful treatment of certain autoimmune diseases has been achieved by the removal of immune complexes and free antibody by means of specific immunoadsorption procedures. For example, the use of an apheresis procedure in which immune complexes and antibodies are removed by passage of a patient's blood through an immunoaffinity column was approved by the U.S.
• proinflammatory cytokines such as tumor necrosis factor ⁇ (TNF ⁇ ) and interleukin-1 (IL-1) play a protective role in the response to infection and cellular stress.
• TNF ⁇ tumor necrosis factor ⁇
• IL-1 interleukin-1
• Other proinflammatory cytokines include interleukin-6, interleukin-8, interleukin-17, and granulocyte-macrophage colony stimulating factor.
• CD4+CD25+ regulatory T cells play a critical role in the control of periphery tolerance to self-antigens. Interestingly, they also control immune responses to allergens and transplant antigens. Recent studies in animal models have shown that adoptive transfer of CD4+CD25+ Tregs can prevent or even cure allergic and autoimmune diseases, and appear to induce transplantation tolerance. Thus, adoptive cell therapy using patient-specific CD4+CD25+ Tregs has emerged as an individualized medicine for the treatment of inflammatory disease including allergy, autoimmune disease and transplant rejection. Furthermore, strategies to activate and expand antigen-specific CD4+CD25+ Tregs in vivo using pharmacological agents may represent a novel avenue for drug development.
• leukocytes The interaction of leukocytes with the vessel endothelium to facilitate the extravasation into the tissue represents a key process of the body's defense mechanisms. Excessive recruitment of leukocytes into the inflamed tissue in chronic diseases like autoimmune disorders could be prevented by interfering with the mechanisms of leukocyte extravasation. Significant progress in elucidating the molecular basis of the trafficking of leukocytes from the blood stream to the extravascular tissue has been achieved that enables new strategies for therapeutic approaches. The multistep process of leukocyte rolling, firm adhesion and transmigration through the endothelial wall is facilitated by a dynamic interplay of adhesion receptors on both leukocytes and on endothelial cells as well as chemokines.
• autoimmune diseases of the eyes are idiopathic opticus-neuritis, ophthalmia sympathica, anterior uveitis and other uveitis forms, retina degeneration, and Mooren's ulcer.
• autoimmune diseases of the skin are bullous pemphigoides, chronic urticaria (autoimmune subtype), dermatitis herpetiformis (morbus Duhring), epidermolysis bullosa aquisita (EBA), acquired angioedema, herpes gestationes, hypocomplementemic urticarial vasculitis syndrome (HUVS), linear IgA-dermatosis, and pemphigus.
• autoimmune diseases of the skin are bullous pemphigoides, chronic urticaria (autoimmune subtype), dermatitis herpetiformis (morbus Duhring), epidermolysis bullosa aquisita (EBA), acquired angioedema, herpes gestationes, hypocomplementemic urticarial vasculitis syndrome (HUVS), linear IgA-dermatosis, and pemphigus.
• hematological autoimmune diseases are autoimmune hemolytic anemia, autoimmune neutropenia, Evans syndrome, inhibitor hemophilia, idiopathic thrombocytopenial purpura (ITP) and pernicious anemia.
• gynecological autoimmune diseases are habitual abortion and infertility.
• autoimmune diseases of the heart are congenital heart block, idiopathic dilatative cardiomyopathy, peripartum-cardiomyopathy, postcardiotomy syndrome, and postinfarct syndrome (Dressler syndrome).
• autoimmune diseases of the ear, nose and throat are chronic sensorineural hearing loss and morbus Meniére.
• autoimmune diseases of the colon are autoimmune enteropathy, colitis ulcerosa, indeterminant colitis, Crohn's disease and gluten-sensitive enteropathy.
• autoimmune endocrinological autoimmune disorders are autoimmune polyglandulary syndrome type 1, autoimmune polyglandulary syndrome type 2, diabetes mellitus type 1 (IDDM), Hashimoto-thyroiditis, insulin-autoimmune-syndrome (IAS), idiopathic diabetes insipidus, idiopathic hypoparathyroidism, idiopathic Addison's disease and Graves-Basedow disease.
• IDDM diabetes mellitus type 1
• IAS insulin-autoimmune-syndrome
• Idiopathic diabetes insipidus idiopathic hypoparathyroidism
• Addison's disease idiopathic Addison's disease
• Graves-Basedow disease examples of autoimmune endocrinological autoimmune disorders.
• autoimmune diseases of the liver are autoimmune hepatitis (AIH type 1, 2 and 3), primary biliary cirrhosis (PBC), and primary sclerosing cholangitis.
• AIH type 1, 2 and 3 autoimmune hepatitis
• PBC primary biliary cirrhosis
• PSC primary sclerosing cholangitis
• Example of autoimmune diseases of the lung is Goodpasture's syndrome.
• An example of an autoimmune disease of the stomach is chronic atrophic (type A) gastritis.
• Examples of neurological autoimmune disorders are Guillain-Barré syndrome, IgM gammopathy-associated neuropathy, Lambert-Eaton syndrome, Miller-Fisher syndrome, multiple sclerosis, multifocal motoric neuropathy, myasthenia gravis, paraneoplastic neurological syndrome, Rasmussen's encephalitis, and stiff-man syndrome.
• autoimmune diseases of the kidney are anti-TBM-nephritis, Goodpasture's syndrome/anti-GBM-nephritis, IgA-nephropathy, interstitial nephritis, and membrane proliferative glomerulonephritides.
• autoimmune diseases that may be caused by an autoimmune reaction are Behcet disease, chronic fatigue immune dysfunction syndrome (CFIDS), Cogan syndrome I, endometriosis, HELLP syndrome, Bechterew's disease, polymyalgia rheumatica, psoriasis, sarcoidosis and vitiligo.
• CIDS chronic fatigue immune dysfunction syndrome
• HELLP syndrome Cogan syndrome I
• Bechterew's disease polymyalgia rheumatica
• psoriasis sarcoidosis and vitiligo.
• B lymphocyte (BL) inhibitors such as anti-CD20 monoclonal antibody, B lymphocyte stimulator (BLyS) antagonists and tolerogens of pathogenic-antibody secreting LB
• B lymphocyte (TL) like monoclonal anti-CD40 ligand antibody or CTLA4-Ig (abatecept)
• TL antagonists which can inhibit the proliferation of autoreactive T cells
• cytokine antagonists chemokine and adhesin antagonists which inhibit trafficking of immunocompetent cells to target organs.
• the peptide of the present invention was tested using the assays described in Examples 14-15 for their effect as active therapeutic agents in the prophylaxis and/or treatment of autoimmune diseases and disorders.
• Fibrosis or fibrosis associated disorder affects the liver, epidermis, endodermis, muscle, tendon, cartilage, heart, pancreas, lung, uterus, nervous system, testis, ovary, adrenal gland, artery, vein, colon, small intestine, biliary tract, or stomach.
• the fibrosis or fibrosis associated disorder is interstitial lung fibrosis.
• the fibrosis or fibrosis associated disorder is the result of an infection with schistosoma .
• the fibrosis or fibrosis associated disorder is the result of wound healing.
• Fibrosis is generally characterized by the pathologic or excessive accumulation of collagenous connective tissue. Fibrotic diseases and disorders include, but are not limited to, collagen disease, interstitial lung disease, human fibrotic lung disease (e.g., obliterative bronchiolitis, idiopathic pulmonary fibrosis, pulmonary fibrosis from a known etiology, tumor stroma in lung disease, systemic sclerosis affecting the lungs, Hermansky-Pudlak syndrome, coal worker's pneumoconiosis, asbestosis, silicosis, chronic pulmonary hypertension, AIDS associated pulmonary hypertension, sarcoidosis, and the like), fibrotic vascular disease, tubulointerstitial and glomerular fibrosis, myocardial fibrosis, arterial sclerosis, atherosclerosis, varicose veins, coronary infarcts, cerebral infarcts, myocardial fibrosis, musculoskeletal fibrosis
• fibrosis Diseases associated with fibrosis include lupus, graft versus host disease, scleroderma, systemic sclerosis, scleroderma-like disorders, sine scleroderma, calcinosis, Raynaud's esophageal dysfunction, sclerodactyl), telangiectasiae, hypersensitivity pneumonitis, collagen vascular disease, asthma, pulmonary arterial hypertension, glomerulonephritis, chronic obstructive pulmonary disease, fibrosis following myocardial infarction, central nervous system fibrosis following a stroke or neuro-degenerative diseases (e.g.
• Alzheimer's disease proliferative vitreoretinopathy (PVR) and arthritis
• silicosis asbestos induced pulmonary fibrosis
• acute lung injury and acute respiratory distress syndrome including bacterial pneumonia induced, trauma induced, viral pneumonia induced, tuberculosis, ventilator induced, non-pulmonary sepsis induced, and aspiration induced.
• the myofibroblast has many phenotypic features, which embody much of the pathologic alterations in fibrotic tissue, e.g. lung tissue. These features would seem to argue for an important role for the myofibroblast in the pathogenesis of fibrosis, e.g. lung fibrosis. Furthermore, the persistence of the myofibroblast may herald progressive disease, and, conversely, its disappearance may be an indicator of resolution. This in turn suggests that future therapeutic strategies targeting the myofibroblast would be productive.
• TGF- ⁇ 1 transforming growth factor- ⁇ 1
• this well-known fibrogenic cytokine is important both for the emergence of the myofibroblast and its survival against apoptotic stimuli. This is consistent with the critical importance of this cytokine in diverse models of fibrosis in various tissues. In view of these properties, the persistence or prolonged survival of the myofibroblast may be the key to understanding why certain forms of lung injury may result in progressive disease, terminating in end stage disease.
• pulmonary fibrosis has diverse etiologies, there is a common feature characteristic of this process, namely, the abnormal deposition of extracellular matrix that effaces the normal lung tissue architecture.
• a key cellular source of this matrix is the mesenchymal cell population that occupies much of the fibrotic lesion during the active period of fibrosis. This population is heterogeneous with respect to a number of key phenotypes.
• One of these phenotypes is the myofibroblast, which is commonly identified by its expression in a-smooth muscle actin and by features that are intermediate between the bona fide smooth muscle cell and the fibroblast.
• the de novo appearance of myofibroblasts at sites of wound healing and tissue repair/fibrosis is associated with the period of active fibrosis and is considered to be involved in wound contraction. Furthermore, the localization of myofibroblasts at sites undergoing active extracellular matrix deposition suggests an important role for these cells in the genesis of the fibrotic lesion.
• TGF- ⁇ 1 The transforming growth factor- ⁇ 1 family of proteins has the most potent stimulatory effect on extracellular matrix deposition of any cytokines so far examined.
• TGF- ⁇ 1 antibodies reduce collagen deposition in murine bleomycin-induced lung fibrosis and human fibrotic lung tissue shows enhanced TGF- ⁇ 1 gene and protein expression.
• TGF- ⁇ is a central regulator of pulmonary fibrosis.
• animal models over expressing TGF- ⁇ showed extensive progressive fibrosis but limited inflammation, indicating that TGF- ⁇ may play a predominant role in the progression of pulmonary fibrosis.
• TGF- ⁇ activity for instance by anti-TGF- ⁇ 1-antibodies, or modulators of TGF- ⁇ 1 such as pirfenidone.
• Pirfenidone inhibits TGF- ⁇ 1 gene expression in vivo resulting in inhibition of TGF- ⁇ 1-mediated collagen synthesis and appears to slow progression of IPF in patients.
• Other novel, promising antifibrotic agents include relaxin (inhibits TGF- ⁇ -mediated overexpression of collagen and increases collagenases), suramin (inhibits growth factors), prostaglandin E2 (inhibits collagen production) and lovastatin (blocks formation of granulation tissue by induction of fibroblast apoptosis).
• TGF- ⁇ Diseases involving the lung associated with increased levels of TGF- ⁇ include chronic lung disease of prematurity, idiopathic pulmonary fibrosis, rapid progressive pulmonary fibrosis, giant-cell interstitial pneumonia, acute rejection after lung transplantation, cytomegalovirus pneumonitis after lung transplantation, bronchiolitis obliterans, asbestosis, coal worker's pneumoconiosis, silicosis, histiocytosis, sarcoidosis, eosinophilic granuloma, scleroderma, systemic lupus erythematosus, lymphangioleiomyomatosis, central fibrosis in pulmonary adenocarcinoma, cystic fibrosis, chronic obstructive lung disease, and asthma.
• TNF- ⁇ tumor necrosis factor- ⁇
• mice which either overexpress or display a deficiency of this cytokine.
• Mice transgenically modified to overexpress TNF-a develop lung fibrosis.
• mice null for TNF- ⁇ show marked resistance to bleomycin induced fibrosis.
• TNF- ⁇ can stimulate fibroblast replication and collagen synthesis in vitro, and pulmonary TNF- ⁇ gene expression rises after administration of bleomycin in mice.
• Soluble TNF- ⁇ receptors reduce lung fibrosis in murine models and pulmonary overexpression of TNF- ⁇ in transgenic mice is characterized by lung fibrosis.
• bronchoalveolar lavage fluid-derived macrophages release increased amounts of TNF- ⁇ compared with controls.
• Increased TNF- ⁇ may induce fibrosis or fibrosis-associated conditions affecting any tissue including, for example, fibrosis of an internal organ, a cutaneous or dermal fibrosing disorder, and fibrotic conditions of the eye.
• Fibrosis of internal organs e.g., liver, lung, kidney, heart blood vessels, gastrointestinal tract
• Fibrosis of internal organs occurs in disorders such as pulmonary fibrosis, idiopathic fibrosis, autoimmune fibrosis, myelofibrosis, liver cirrhosis, veno-occlusive disease, mesangial proliferative glomerulonephritis, crescentic glomerulonephritis, diabetic nephropathy, renal interstitial fibrosis, renal fibrosis in subjects receiving cyclosporin, allograft rejection, HTV associated nephropathy.
• fibrosis-associated disorders include systemic sclerosis, eosinophilia-myalgia syndrome, and fibrosis-associated CNS disorders such as intraocular fibrosis.
• Dermal fibrosing disorders include, for example, scleroderma, morphea, keloids, hypertrophic scars, familial cutaneous collagenoma, and connective tissue nevi of the collagen type.
• Fibrotic conditions of the eye include conditions such as diabetic retinopathy, post-surgical scarring (for example, after glaucoma filtering surgery and after crossed-eyes (strabismus) surgery), and proliferative vitreoretinopathy.
• Additional fibrotic conditions may result, for example, from rheumatoid arthritis, diseases associated with prolonged joint pain and deteriorated joints; progressive systemic sclerosis, polymyositis, dermatomyositis, eosinophilic fascitis, morphea, Raynaud's syndrome, and nasal polyposis.
• ECM remodeling observed in the lungs of patients with interstitial pulmonary fibrosis (IPF) is due, at least in part, to an imbalance between matrix metalloproteases (MMPs) and tissue inhibitor of metalloproteinases (TIMPs).
• MMPs matrix metalloproteases
• TIMPs tissue inhibitor of metalloproteinases
• IGF insulin-like growth factor
• TGF- ⁇ 1 and TNF- ⁇ occur through the actions of MMPs, thereby activating or releasing them from inhibitory protein-protein interactions.
• IGFs in vivo are sequestered by six high affinity IGF binding proteins (IGFBPs1-6), preventing their ability to interact with IGF receptors.
• IGFBPs1-6 high affinity IGF binding proteins
• MMPs have recently been shown to regulate the cleavage of IGF binding proteins, thereby liberating the complexed ligand to affect IGF actions in target cells. Observations have also shown that the gelatinases, MMP-9 and MMP-2 may be involved in proteolytic activation of latent TGF- ⁇ complexes. Furthermore, the MMP inhibitor Batimastat reduces MMP-9 activity in BAL fluid, which was associated with decreased amount of TGF- ⁇ and TNF- ⁇ .
• Pulmonary fibrosis can be an all too common consequence of an acute inflammatory response of the lung to a host of inciting events.
• Chronic lung injury due to fibrotic changes can result from an identifiable inflammatory event or an insidious, unknown event.
• the inflammatory process can include infiltration of various inflammatory cell types, such as neutrophils and macrophages, the secretion of inflammatory cytokines and chemokines and the secretion of matrix remodeling proteinases.
• CCL18 cysteine-cysteine chemokine ligand 18
• AMs human alveolar macrophages
• the peptide of the present invention was tested using the assays described in Examples 14-15 for their effect as active therapeutic agents in the prophylaxis and/or treatment of fibrotic diseases and disorders.
• Inflammation is the final common pathway of various insults, such as infection, trauma, and allergies to the human body. It is characterized by activation of the immune system with recruitment of inflammatory cells, production of pro-inflammatory cells and production of pro-inflammatory cytokines. Most inflammatory diseases and disorders are characterized by abnormal accumulation of inflammatory cells including monocytes/macrophages, granulocytes, plasma cells, lymphocytes and platelets. Along with tissue endothelial cells and fibroblasts, these inflammatory cells release a complex array of lipids, growth factors, cytokines and destructive enzymes that cause local tissue damage.
• neutrophilic inflammation which is characterized by infiltration of the inflamed tissue by neutrophil polymorphonuclear leukocytes (PMN), which are a major component of the host defense. Tissue infection by extracellular bacteria represents the prototype of this inflammatory response.
• neutrophil polymorphonuclear leukocytes a major component of the host defense.
• Tissue infection by extracellular bacteria represents the prototype of this inflammatory response.
• various non-infectious diseases are characterized by extravascular recruitment of neutrophils.
• This group of inflammatory diseases includes chronic obstructive pulmonary disease, adult respiratory distress syndrome, some types of immune-complex alveolitis, cystic fibrosis, bronchitis, bronchiectasis, emphysema, glomerulonephritis, rheumatoid arthritis, gouty arthritis, ulcerative colitis, certain dermatoses such as psoriasis and vasculitis.
• neutrophils are thought to play a crucial role in the development of tissue injury which, when persistent, can lead to the irreversible destruction of the normal tissue architecture with consequent organ dysfunction. Tissue damage is primarily caused by the activation of neutrophils followed by their release of proteinases and increased production of oxygen species.
• COPD chronic obstructive pulmonary disease
• Neutrophil infiltration of the patient's lungs is a primary characteristic of COPD. Elevated levels of proinflammatory cytokines, like TNF- ⁇ , and especially chemokines like interleukin-8 (IL-8) and growth-regulated oncogene- ⁇ (GRO- ⁇ ) play a very important role in pathogenesis of this disease. Platelet thromboxane synthesis is also enhanced in patients with COPD. Most of the tissue damage is caused by activation of neutrophils followed by their release of metalloproteinases, and increased production of oxygen species.
• IL-8 interleukin-8
• GRO- ⁇ growth-regulated oncogene- ⁇
• TNF- ⁇ has several biologic activities that are important in homeostasis as well as in pathophysiological conditions.
• the main sources of TNF- ⁇ are monocytes-macrophages, T-lymphocytes and mast cells.
• cA2 anti-TNF- ⁇ antibodies
• RA rheumatoid arthritis
• TNF- ⁇ antagonists are also applicable to several other pathological conditions and diseases such as spondylitis, osteoarthritis, gout and other arthritic conditions, sepsis, septic shock, toxic shock syndrome, atopic dermatitis, contact dermatitis, psoriasis, glomerulonephritis, lupus erythematosus, scleroderma, asthma, cachexia, chronic obstructive lung disease, congestive heart failure, insulin resistance, lung (pulmonary) fibrosis, multiple sclerosis, Crohn's disease, ulcerative colitis, viral infections and AIDS.
• pathological conditions and diseases such as spondylitis, osteoarthritis, gout and other arthritic conditions, sepsis, septic shock, toxic shock syndrome, atopic dermatitis, contact dermatitis, psoriasis, glomerulonephritis, lupus erythematosus, scleroderma,
• immunoinflammatory disorder encompasses a variety of conditions, including autoimmune diseases, proliferative skin diseases, and inflammatory dermatoses. Immunoinflammatory disorders result in the destruction of healthy tissue by an inflammatory process, dysregulation of the immune system, and unwanted proliferation of cells.
• immunoinflammatory disorders are acne vulgaris; acute respiratory distress syndrome; Addison's disease; allergic rhinitis; allergic intraocular inflammatory diseases, antineutrophil cytoplasmic antibody (ANCA)-associated small-vessel vasculitis; ankylosing spondylitis; arthritis, asthma; atherosclerosis; atopic dermatitis; autoimmune hepatitis; autoimmune hemolytic anemia; autoimmune hepatitis; Behcet's disease; Bell's palsy; bullous pemphigoid; cerebral ischemia; chronic obstructive pulmonary disease; cirrhosis; Cogan's syndrome; contact dermatitis; COPD; Crohn's disease; Cushing's syndrome; dermatomyositis; diabetes mellitus; discoid lupus erythematosus; eosinophilic fasciitis; erythema nodosum; exfoliative dermatitis; fibromyalgia; focal glomerulo
• non-dermal inflammatory disorders include, for example, rheumatoid arthritis, inflammatory bowel disease, asthma, and chronic obstructive pulmonary disease.
• skin inflammatory disorders or “inflammatory dermatoses” is meant an inflammatory disorder selected from psoriasis, guttate psoriasis, inverse psoriasis, pustular psoriasis, erythrodermic psoriasis, acute febrile neutrophilic dermatosis, eczema, histotic eczema, dyshidrotic eczema, vesicular palmoplantar eczema, acne vulgaris, atopic dermatitis, contact dermatitis, allergic contact dermatitis, dermatomyositis, exfoliative dermatitis, hand eczema, pompholyx, rosacea, rosacea caused by sarcoidosis, ros
• proliferative skin disease is meant a benign or malignant disease that is characterized by accelerated cell division in the epidermis or dermis.
• proliferative skin diseases are psoriasis, atopic dermatitis, nonspecific dermatitis, primary irritant contact dermatitis, allergic contact dermatitis, basal and squamous cell carcinomas of the skin, lamellar ichthyosis, epidermolytic hyperkeratosis, premalignant keratosis, acne, and seborrheic dermatitis.
• a particular disease, disorder, or condition may be characterized as being both a proliferative skin disease and an inflammatory dermatosis.
• An example of such a disease is psoriasis.
• Symptoms and signs of inflammation associated with specific conditions include:
• the positive control refers to stimulated samples, not treated with substances.
• the peptide of the present invention was tested using the assays described in Examples 1-7, 9-17 for their effect as active therapeutic agents in the prophylaxis and/or treatment of inflammatory diseases and disorders.
• the present invention also relates generally to the fields of neurology and psychiatry and to methods of protecting the cells of a mammalian central nervous system from damage or injury.
• CNS central nervous system
• PNS peripheral nervous system
• Neuronal degeneration as a result of, for example; Alzheimer's disease, multiple sclerosis, cerebral-vascular accidents (CVAs)/stroke, traumatic brain injury, spinal cord injuries, degeneration of the optic nerve, e.g., ischemic optic neuropathy or retinal degeneration and other central nervous system disorders is an enormous medical and public health problem by virtue of both its high incidence and the frequency of long-term sequelae.
• Animal studies and clinical trials have shown that amino acid transmitters (especially glutamate), oxidative stress and inflammatory reactions contribute strongly to cell death in these conditions.
• damaged neurons Upon injury or upon ischemic insult, damaged neurons release massive amounts of the neurotransmitter glutamate, which is excitotoxic to the surrounding neurons.
• Glutamate is a negatively charged amino acid that is an excitatory synaptic transmitter in the mammalian nervous system. Although the concentration of glutamate can reach the millimolar range in nerve terminals its extracellular concentration is maintained at a low level to prevent neurotoxicity. It has been noted that glutamate can be toxic to neurons if presented at a high concentration. The term “excitotoxicity” has been used to describe the cytotoxic effect that glutamate (and other such excitatory amino acids) can have on neurons when applied at high dosages.
• This nervous system injury may take the form of an abrupt insult or an acute injury to the nervous system as in, for example, acute neurodegenerative disorders including, but not limited to; acute injury, hypoxia-ischemia or the combination thereof resulting in neuronal cell death or compromise.
• Acute injury includes, but is not limited to, traumatic brain injury (TBI) including, closed, blunt or penetrating brain trauma, focal brain trauma, diffuse brain damage, spinal cord injury, intracranial or intravertebral lesions (including, but not limited to, contusion, penetration, shear, compression or laceration lesions of the spinal cord or whiplash shaken infant syndrome).
• TBI traumatic brain injury
• deprivation of oxygen or blood supply in general can cause acute injury as in hypoxia and/or ischemia including, but not limited to, cerebrovascular insufficiency, cerebral ischemia or cerebral infarction (including cerebral ischemia or infarctions originating from embolic occlusion and thrombosis, retinal ischemia (diabetic or otherwise), glaucoma, retinal degeneration, multiple sclerosis, toxic and ischemic optic neuropathy, reperfusion following acute ischemia, perinatal hypoxic-ischemic injury, cardiac arrest or intracranial hemorrhage of any type (including, but not limited to, epidural, subdural, subarachnoid or intracerebral hemorrhage).
• cerebrovascular insufficiency including cerebral ischemia or cerebral infarction (including cerebral ischemia or infarctions originating from embolic occlusion and thrombosis, retinal ischemia (diabetic or otherwise), glaucoma, retinal
• Trauma or injury to tissues of the nervous system may also take the form of more chronic and progressive neurodegenerative disorders, such as those associated with progressive neuronal cell death or compromise over a period of time including, but not limited to, Alzheimer's disease, Pick's disease, diffuse Lewy body disease, progressive supranuclear palsy (Steel-Richardson syndrome), multisystem degeneration (Shy-Drager syndrome), chronic epileptic conditions associated with neurodegeneration, motor neuron diseases (amyotrophic lateral sclerosis), multiple sclerosis, degenerative ataxias, cortical basal degeneration, ALS-Parkinson's-dementia complex of Guam, subacute sclerosing panencephalitis, Huntington's disease, Parkinson's disease, synucleinopathies (including multiple system atrophy), primary progressive aphasia, striatonigral degeneration, Machado-Joseph disease or spinocerebellar ataxia type 3 and olivopontocerebellar de
• trauma and progressive injury to the nervous system can take place in various psychiatric disorders, including but not limited to, progressive, deteriorating forms of bipolar disorder or schizoaffective disorder or schizophrenia, impulse control disorders, obsessive compulsive disorder (OCD), behavioral changes in temporal lobe epilepsy and personality disorders.
• psychiatric disorders including but not limited to, progressive, deteriorating forms of bipolar disorder or schizoaffective disorder or schizophrenia, impulse control disorders, obsessive compulsive disorder (OCD), behavioral changes in temporal lobe epilepsy and personality disorders.
• the compounds of the invention would be used to provide neuroprotection in disorders involving trauma and progressive injury to the nervous system in various psychiatric disorders. These disorders would be selected from the group consisting of; schizoaffective disorder, schizophrenia, impulse control disorders, obsessive compulsive disorder (OCD) and personality disorders.
• trauma and injury make take the form of disorders associated with overt and extensive memory loss including, but not limited to, neurodegenerative disorders associated with age-related dementia, vascular dementia, diffuse white matter disease (Binswanger's disease), dementia of endocrine or metabolic origin, dementia of head trauma and diffuse brain damage, dementia pugilistica or frontal lobe dementia, including but not limited to Pick's Disease.
• neurodegenerative disorders associated with age-related dementia vascular dementia, diffuse white matter disease (Binswanger's disease), dementia of endocrine or metabolic origin, dementia of head trauma and diffuse brain damage, dementia pugilistica or frontal lobe dementia, including but not limited to Pick's Disease.
• disorders associated with neuronal injury include, but are not limited to, disorders associated with chemical, toxic, infectious and radiation injury of the nervous system including the retina, injury during fetal development, prematurity at time of birth, anoxic-ischemia, injury from hepatic, glycemic, uremic, electrolyte and endocrine origin, injury of psychiatric origin (including, but not limited to, psychopathology, depression or anxiety), injury from peripheral diseases and plexopathies (including plexus palsies) or injury from neuropathy (including neuropathy selected from multifocal, sensory, motor, sensory-motor, autonomic, sensory-autonomic or demyelinating neuropathies (including, but not limited to Guillain-Barre syndrome or chronic inflammatory demyelinating polyradiculoneuropathy) or those neuropathies originating from infections, inflammation, immune disorders, drug abuse, pharmacological treatments, toxins, trauma (including, but not limited to compression, crush, laceration or segmentation traumas), metabolic disorders (including, but
• cognitive disorders shall refer to anxiety disorders, delirium, dementia, amnestic disorders, dissociative disorders, eating disorders, mood disorders, schizophrenia, psychotic disorders, sexual and gender identity disorders, sleep disorders, somatoform disorders, acute stress disorder, obsessive-compulsive disorder, panic disorder, posttraumatic stress disorder, specific phobia, social phobia, substance withdrawal delirium, Alzheimer's disease, Creutzfeldt-Jakob disease, head trauma, Huntington's disease, HIV disease, Parkinson's disease, Pick's disease, learning disorders, motor skills disorders, developmental coordination disorder, communication disorders, phonological disorder, pervasive developmental disorders, Asperger's disorder, autistic disorder, childhood disintegrative disorder, Rett's disorder, pervasive developmental disorder, attention-deficit/hyperactivity disorder (ADHD), conduct disorder, oppositional defiant disorder, pica, rumination disorder, tic disorders, chronic motor or vocal tic disorder, Tourette's disorder, elimination disorders, encopres
• bipolar and clinical disorders shall refer to adjustment disorders, anxiety disorders, delirium, dementia, amnestic and other cognitive disorders, disorders usually first diagnosed in infancy (e.g.), childhood, or adolescence, dissociative disorders (e.g. dissociative amnesia, depersonalization disorder, dissociative fugue and dissociative identity disorder), eating disorders, factitious disorders, impulse-control disorders, mental disorders due to a general medical condition, mood disorders, other conditions that may be a focus of clinical attention, personality disorders, schizophrenia and other psychotic disorders, sexual and gender identity disorders, sleep disorders, somatoform disorders, substance-related disorders, generalized anxiety disorder (e.g.
• acute stress disorder posttraumatic stress disorder
• panic disorder phobia
• agoraphobia obsessive-compulsive disorder
• stress acute stress disorder
• anxiety neurosis nervousness
• phobia posttraumatic stress disorder
• posttraumatic stress disorder posttraumatic stress disorder
• OCD obsessive-compulsive disorder
• manic depressive psychosis specific phobias
• social phobia adjustment disorder with anxious features.
• disorders usually first diagnosed in infancy, childhood, or adolescence are: mental retardation, learning disorders, mathematics disorder, reading disorder, disorder of written expression, motor skills disorders, developmental coordination disorder, communication disorders, expressive language disorder, phonological disorder, mixed receptive-expressive language disorder, stuttering, pervasive developmental disorders, Asperger's disorder, autistic disorder, childhood disintegrative disorder, Rett's disorder, pervasive developmental disorder, attention-deficit/hyperactivity disorder (ADHD), conduct disorder, oppositional defiant disorder, feeding disorder of infancy or early childhood, pica, rumination disorder, tic disorders, chronic motor or vocal tic disorder, Tourette's syndrome, elimination disorders, encopresis, enuresis, selective mutism, separation anxiety disorder, reactive attachment disorder of infancy or early childhood, stereotypic movement disorder.
• ADHD attention-deficit/hyperactivity disorder
• substance-related disorders examples include alcohol related disorders, amphetamine related disorders, caffeine related disorders, cannabis related disorders, cocaine related disorders, hallucinogen related disorders, inhalant related disorders, nicotine related disorders, opioid related disorders, psychotic disorder, psychotic disorder, phencyclidine-related disorder, abuse, persisting amnestic disorder, anxiety disorder, persisting dementia, dependence, intoxication, intoxication delirium, mood disorder, psychotic disorder, withdrawal, withdrawal delirium, sexual dysfunction, sleep disorder.
• neurodegenerative disease shall mean; inhibiting, preventing, ameliorating or reducing the severity of the dysfunction, degeneration or death of nerve cells, axons or their supporting cells in the central or peripheral nervous system of a mammal, including a human.
• a compound for example, a excitatory amino acid such as glutamate; a toxin; or a prophylactic or therapeutic compound that exerts an immediate or delayed cytotoxic side effect including but not limited to the immediate or delayed induction of apoptosis
• a patient in need of treatment with a neuroprotective drug will refer to any patient who currently has or may develop any of the above syndromes or disorders, or any disorder in which the patient's present clinical condition or prognosis could benefit from providing neuroprotection to prevent the development, extension, worsening or increased resistance to treatment of any neurological or psychiatric disorder.
• treating refers to any indicia of success in the prevention or amelioration of an injury, pathology or condition, including any objective or subjective parameter such as abatement; remission; diminishing of symptoms or making the injury, pathology, or condition more tolerable to the patient; slowing in the rate of degeneration or decline; making the final point of degeneration less debilitating; or improving a subject's physical or mental well-being.
• the treatment or amelioration of symptoms can be based on objective or subjective parameters; including the results of a physical examination, neurological examination, and/or psychiatric evaluations.
• this invention provides methods of neuroprotection.
• these methods comprise administering a therapeutically effective amount of the peptide of the invention to a patient who has not yet developed overt, clinical signs or symptoms of injury or damage to the cells of the nervous system but who may be in a high risk group for the development of neuronal damage because of injury or trauma to the nervous system or because of some known predisposition either biochemical or genetic or the finding of a verified biomarker of one or more of these disorders.
• the methods and compositions of the present invention are directed toward neuroprotection in a subject who is at risk of developing neuronal damage but who has not yet developed clinical evidence.
• This patient may simply be at “greater risk” as determined by the recognition of any factor in a subject's, or their families, medical history, physical exam or testing that is indicative of a greater than average risk for developing neuronal damage. Therefore, this determination that a patient may be at a “greater risk” by any available means can be used to determine whether the patient should be treated with the methods of the present invention.
• subjects who may benefit from treatment by the methods and peptide of this invention can be identified using accepted screening methods to determine risk factors for neuronal damage.
• screening methods include, for example, conventional work-ups to determine risk factors including but not limited to: for example, head trauma, either closed or penetrating, CNS infections, bacterial or viral, cerebrovascular disease including but not limited to stroke, brain tumors, brain edema, cysticercosis, porphyria, metabolic encephalopathy, drug withdrawal including but not limited to sedative-hypnotic or alcohol withdrawal, abnormal perinatal history including anoxia at birth or birth injury of any kind, cerebral palsy, learning disabilities, hyperactivity, history of febrile convulsions as a child, history of status epilepticus, family history of epilepsy or any seizure related disorder, inflammatory disease of the brain including lupis, drug intoxication either direct or by placental transfer, including but not limited to cocaine poisoning, parental consanguinity, and treatment with medications that
• the determination of which patients may benefit from treatment with a neuroprotective drug in patients who have no clinical signs or symptoms may be based on a variety of “surrogate markers” or “biomarkers”.
• the terms “surrogate marker” and “biomarker” are used interchangeably and refer to any anatomical, biochemical, structural, electrical, genetic or chemical indicator or marker that can be reliably correlated with the present existence or future development of neuronal damage.
• brain-imaging techniques such as computer tomography (CT), magnetic resonance imaging (MRI) or positron emission tomography (PET), can be used to determine whether a subject is at risk for neuronal damage.
• Suitable biomarkers for the methods of this invention include, but are not limited to: the determination by MRI, CT or other imaging techniques, of sclerosis, atrophy or volume loss in the hippocampus or overt mesial temporal sclerosis (MTS) or similar relevant anatomical pathology; the detection in the patient's blood, serum or tissues of a molecular species such as a protein or other biochemical biomarker, e.g., elevated levels of ciliary neurotrophic factor (CNTF) or elevated serum levels of a neuronal degradation product; or other evidence from surrogate markers or biomarkers that the patient is in need of treatment with a neuroprotective drug.
• a molecular species such as a protein or other biochemical biomarker, e.g., elevated levels of ciliary neurotrophic factor (CNTF) or elevated serum levels of a neuronal degradation product
• CNTF ciliary neurotrophic factor
• a determination that a subject has, or may be at risk for developing, neuronal damage would also include, for example, a medical evaluation that includes a thorough history, a physical examination, and a series of relevant bloods tests. It can also include an electroencephalogram (EEG), CT, MRI or PET scan.
• EEG electroencephalogram
• a determination of an increased risk of developing neuronal damage or injury may also be made by means of genetic testing, including gene expression profiling or proteomic techniques.
• a neuroprotective drug e.g., bipolar disorder, schizoaffective disorder, schizophrenia, impulse control disorders, etc.
• the above tests may also include a present state exam and a detailed history of the course of the patients symptoms such as mood disorder symptoms and psychotic symptoms over time and in relation to other treatments the patient may have received over time, e.g., a life chart.
• peptide suitable for use in the practice of this invention will be administered either singly or concomitantly with at least one or more other compounds or therapeutic agents, e.g., with other neuroprotective drugs or antiepileptic drugs, anticonvulsant drugs.
• the present invention provides methods to treat or prevent neuronal injury in a patient.
• the method includes the step of; administering to a patient in need of treatment, an effective amount of one of the peptide disclosed herein in combination with an effective amount of one or more other compounds or therapeutic agents that have the ability to provide neuroprotection or to treat or prevent seizures or epileptogenesis or the ability to augment the neuroprotective effects of the compounds of the invention.
• the term “combination administration” of a compound, therapeutic agent or known drug with the peptide of the present invention means administration of the drug and the one or more compounds at such time that both the known drug and the peptide will have a therapeutic effect. In some cases this therapeutic effect will be synergistic. Such concomitant administration can involve concurrent (i.e. at the same time), prior, or subsequent administration of the drug with respect to the administration of the peptide of the present invention. A person of ordinary skill in the art would have no difficulty determining the appropriate timing, sequence and dosages of administration for particular drugs and peptide of the present invention.
• the said one or more other compounds or therapeutic agents may be selected from compounds that have one or more of the following properties: antioxidant activity; NMDA receptor antagonist activity, augmentation of endogenous GABA inhibition; NO synthase inhibitor activity; iron binding ability, e.g., an iron chelator; calcium binding ability, e.g., a Ca (II) chelator; zinc binding ability, e.g., a Zn (II) chelator; the ability to effectively block sodium or calcium ion channels, or to open potassium or chloride ion channels in the CNS of a patient.
• the peptide of the present invention was tested using the assays described in Examples 1-7, 9-17 for their effect as active therapeutic agents in the prophylaxis and/or treatment of neurodegenerative diseases and disorders.
• Heart disease is a general term used to describe many different heart conditions.
• coronary artery disease which is the most common heart disease, is characterized by constriction or narrowing of the arteries supplying the heart with oxygen-rich blood, and can lead to myocardial infarction, which is the death of a portion of the heart muscle.
• Heart failure is a condition resulting from the inability of the heart to pump an adequate amount of blood through the body. Heart failure is not a sudden, abrupt stop of heart activity but, rather, typically develops slowly over many years, as the heart gradually loses its ability to pump blood efficiently.
• Risk factors for heart failure include coronary artery disease, hypertension, valvular heart disease, cardiomyopathy, disease of the heart muscle, obesity, diabetes, and/or a family history of heart failure.
• cardiovascular diseases and disorders are: aneurysm, stable angina, unstable angina, angina pectoris, angioneurotic edema, aortic valve stenosis, aortic aneurysm, arrhythmia, arrhythmogenic right ventricular dysplasia, arteriosclerosis, arteriovenous malformations, atrial fibrillation, Behcet syndrome, bradycardia, cardiac tamponade, cardiomegaly, congestive card iomyopathy, hypertrophic cardiomyopathy, restrictive cardiomyopathy, carotid stenosis, cerebral hemorrhage, Churg-Strauss syndrome, diabetes, Ebstein's Anomaly, Eisenmenger complex, cholesterol embolism, bacterial endocarditis, fibromuscular dysplasia, congenital heart defects, heart diseases, congestive heart failure, heart valve diseases, heart attack, epidural hematoma, hematoma, subdural, Hippel-Lindau disease, hyperemia
• Vascular diseases are often the result of decreased perfusion in the vascular system or physical or biochemical injury to the blood vessel.
• Peripheral vascular disease is defined as a disease of blood vessels often encountered as narrowing of the vessels of the limbs.
• functional disease which doesn't involve defects in the blood vessels but rather arises from stimuli such as cold, stress, or smoking
• organic disease which arises from structural defects in the vasculature such as atherosclerotic lesions, local inflammation, or traumatic injury. This can lead to occlusion of the vessel, aberrant blood flow, and ultimately to tissue ischemia.
• PVD peripheral artery disease
• PAD peripheral artery disease
• IC intermittent claudication
• Peripheral vascular disease is also manifested in atherosclerotic stenosis of the renal artery, which can lead to renal ischemia and kidney dysfunction.
• Diabetes mellitus causes a variety of physiological and anatomical irregularities, the most prominent of which is the inability of the body to utilize glucose normally, which results in hyperglycemia.
• Chronic diabetes can lead to complications of the vascular system which include atherosclerosis, abnormalities involving large and medium size blood vessels (macroangiopathy) and abnormalities involving small blood vessels (microangiopathy) such as arterioles and capillaries.
• Patients with diabetes mellitus are at increased risk of developing one or more foot ulcers as a result of established long-term complications of the disease, which include impaired nerve function (neuropathy) and/or ischemia.
• impaired nerve function neuroopathy
• ischemia Local tissue ischemia is a key contributing factor to diabetic foot ulceration.
• Neuropathy is a general term which describes a disease process which leads to the dysfunction of the nervous system, and is one of the major complications of diabetes mellitus, with no well-established therapies for either its symptomatic treatment or for prevention of progressive decline in nerve function.
• the thickening and leakage of capillaries caused by diabetes primarily affect the eyes (retinopathy) and kidneys (nephropathy).
• the thickening and leakage of capillaries caused by diabetes are also associated with skin disorders and disorders of the nervous system (neuropathy).
• the eye diseases associated with diabetes are nonproliferative diabetic retinopathy, proliferative diabetic retinopathy, diabetic maculopathy, glaucoma, cataracts and the like.
• diseases although not known to be related to diabetes are similar in their physiological effects on the peripheral vascular system.
• diseases include Raynaud syndrome, CREST syndrome, autoimmune diseases such as erythematosis, rheumatoid disease, and the like.
• peripheral vascular diseases comprises any peripheral vascular disease including peripheral and autonomic neuropathies.
• peripheral arterial disease such as chronic arterial occlusion including arteriosclerosis, arteriosclerosis obliterans and thromboangiitis obliterans (Buerger's disease), macroangiopathy, microangiopathy, diabetes mellitus, thrombophlebitis, phlebemphraxis, Raynaud's disease, Raynaud's syndrome, CREST syndrome, health hazard due to vibration, Sudeck's syndrome, intermittent claudication, cold sense in extremities, abnormal sensation in extremities, sensitivity to the cold, Meniere's disease, Meniere's syndrome, numbness, lack of sensation, anesthesia, resting pain, causalgia (burning pain), disturbance of peripheral circulation function, disturbance of nerve function, disturbance of motor function, motor paralysis, diabetic peripheral circulation disorder, lumbar spinal canal sten
• the peptide of the present invention was tested using the assays described in Examples 1-7, 9-17 for their effect as active therapeutic agents in the prophylaxis and/or treatment of heart and vascular diseases and disorders.
• Another aspect of the present invention is directed to the use of the peptide as a therapeutic agent for the prophylaxis and/or treatment of an autoimmune disease, a fibrotic disease, an inflammatory disease, a neurodegenerative disease, an infectious disease, or a heart and vascular disease in patients suffering from one or more of the following Rare or Orphan Diseases:
• Still another aspect of the present invention relates to the use of the peptide according to claim 1 as an active ingredient, together with at least one pharmaceutically acceptable carrier, excipient and/or diluents for the manufacture of a pharmaceutical composition for the treatment and/or prophylaxis of cancer, an autoimmune disease, a fibrotic disease, an inflammatory disease, a neurodegenerative disease, an infectious disease, a lung disease, a heart and vascular disease or a metabolic disease or any other disease disclosed herein.
• Such pharmaceutical compositions comprise the peptide as an active ingredient, together with at least one pharmaceutically acceptable carrier, excipient, binders, disintegrates, glidents, diluents, lubricants, coloring agents, sweetening agents, flavoring agents, preservatives or the like.
• the pharmaceutical compositions of the present invention can be prepared in a conventional solid or liquid carrier or diluents and a conventional pharmaceutically-made adjuvant at suitable dosage level in a known way.
• the peptide is suitable for intravenous administration or suitable for oral administration or suitable for administration by inhalation.
• Administration forms include, for example, pills, tablets, film tablets, coated tablets, capsules, liposomal formulations, micro- and nano-formulations, powders and deposits.
• the present invention also includes pharmaceutical preparations for parenteral application, including dermal, intradermal, intragastral, intracutan, intravasal, intravenous, intramuscular, intraperitoneal, intranasal, intravaginal, intrabuccal, percutan, rectal, subcutaneous, sublingual, topical, or transdermal application, which preparations in addition to typical vehicles and/or diluents contain the peptide according to the present invention.
• the present invention also includes the mammalian milk, artificial mammalian milk as well as mammalian milk substitutes as a formulation for oral administration of the peptide to newborns, toddlers, and infants, either as pharmaceutical preparations, and/or as dietary food supplements.
• the peptide of the invention can also be administered in form of its pharmaceutically active salts.
• Suitable pharmaceutically active salts comprise acid addition salts and alkali or earth alkali salts. For instance, sodium, potassium, lithium, magnesium or calcium salts can be obtained.
• the peptide of the invention forms pharmaceutically acceptable salts with organic and inorganic acids.
• suitable acids for such acid addition salt formation are hydrochloric acid, hydrobromic acid, sulfuric acid, phosphoric acid, acetic acid, citric acid, oxalic acid, malonic acid, salicylic acid, p-aminosalicylic acid, malic acid, fumaric acid, succinic acid, ascorbic acid, maleic acid, sulfonic acid, phosphonic acid, perchloric acid, nitric acid, formic acid, propionic acid, gluconic acid, lactic acid, tartaric acid, hydroxymaleic acid, pyruvic acid, phenylacetic acid, benzoic acid, p-aminobenzoic acid, p-hydroxybenzoic acid, methanesulfonic acid, ethanesulfonic acid, nitrous acid, hydroxyethanesulfonic acid, ethylenesulfonic acid, p-toluenes
• compositions according to the present invention will typically be administered together with suitable carrier materials selected with respect to the intended form of administration, i.e. for oral administration in the form of tablets, capsules (either solid filled, semi-solid filled or liquid filled), powders for constitution, aerosol preparations consistent with conventional pharmaceutical practices.
• suitable formulations are gels, elixirs, dispersible granules, syrups, suspensions, creams, lotions, solutions, emulsions, suspensions, dispersions, and the like.
• Suitable dosage forms for sustained release include tablets having layers of varying disintegration rates or controlled release polymeric matrices impregnated with the active components and shaped in tablet form or capsules containing such impregnated or encapsulated porous polymeric matrices.
• the pharmaceutical compositions may be comprised of 5 to 95% by weight of the peptide.
• excipient and/or diluents can be used lactose, starch, sucrose, cellulose, magnesium stearate, dicalcium phosphate, calcium sulfate, talc, mannitol, ethyl alcohol (liquid filled capsules).
• Suitable binders include starch, gelatin, natural sugars, corn sweeteners, natural and synthetic gums such as acacia, sodium alginate, carboxymethyl-cellulose, polyethylene glycol and waxes.
• lubricants that may be mentioned for use in these dosage forms, boric acid, sodium benzoate, sodium acetate, sodium chloride, and the like.
• Disintegrants include starch, methylcellulose, guar gum and the like. Sweetening and flavoring agents and preservatives may also be included where appropriate.
• compositions of the present invention may be formulated in sustained release form to provide the rate controlled release of any one or more of the components or active ingredients to optimize the therapeutic effects.
• Suitable dosage forms for sustained release include layered tablets containing layers of varying disintegration rates or controlled release polymeric matrices impregnated with the active components and shaped in tablet form or capsules containing such impregnated or encapsulated porous polymeric matrices.
• Aerosol preparations suitable for inhalation may include solutions and solids in powder form, which may be in combination with a pharmaceutically acceptable carrier such as inert compressed gas, e.g. nitrogen.
• a pharmaceutically acceptable carrier such as inert compressed gas, e.g. nitrogen.
• a low melting wax such as a mixture of fatty acid glycerides such as cocoa butter is first melted, and the active ingredient is dispersed homogeneously therein by stirring or similar mixing. The molten homogeneous mixture is then poured into convenient sized molds, allowed to cool and thereby solidify.
• solid form preparations which are intended to be converted, shortly before use, to liquid form preparations for either oral or parenteral administration.
• liquid forms include solutions, suspensions and emulsions.
• the peptide of the present invention may also be deliverable transdermally.
• the transdermal compositions may take the form of creams, lotions, aerosols and/or emulsions and can be included in a transdermal patch of the matrix or reservoir type as are conventional in the art for this purpose.
• the transdermal formulation of the peptide of the invention is understood to increase the bioavailability of said peptide into the circulating blood.
• One problem in the administration of peptides is the loss of bioactivity due to the formation of insolubles in aqueous environments or due to degradation. Therefore stabilization of peptides for maintaining their fluidity and maintaining their biological activity upon administration to the patients in need thereof needs to be achieved.
• Prior efforts to provide active agents for medication include incorporating the medication in a polymeric matrix whereby the active ingredient is released into the systemic circulation.
• Known sustained-release delivery means of active agents are disclosed, for example, in U.S. Pat. No. 4,235,988, U.S. Pat. No. 4,188,373, U.S. Pat. No. 4,100,271, U.S. Pat. No. 447,471, U.S. Pat. No. 4,474,752, U.S. Pat. No. 4,474,753, or U.S. Pat. No. 4,478,822 relating to polymeric pharmaceutical vehicles for delivery of pharmaceutically active chemical materials to mucous membranes.
• the pharmaceutical carriers are aqueous solutions of certain polyoxyethylene-polyoxypropylene condensates. These polymeric pharmaceutical vehicles are described as providing for increased drug absorption by the mucous membrane and prolonged drug action by a factor of two or more.
• the substituents are block copolymers of polyoxypropylene and polyoxyethylene used for stabilization of drugs
• Aqueous solutions of polyoxyethylene-polyoxypropylene block copolymers are useful as stabilizers for the peptide.
• poloxamers provide excellent vehicles for the delivery of the peptide, and they are physiologically acceptable.
• Poloxamers also known by the trade name Pluronics (e.g. Pluronic F127, Pluronic P85, Pluronic F68) have surfactant properties that make them useful in industrial applications. Among other things, they can be used to increase the water solubility of hydrophobic, oily substances or otherwise increase the miscibility of two substances with different hydrophobicities. For this reason, these polymers are commonly used in industrial applications, cosmetics, and pharmaceuticals.
• capsule refers to a special container or enclosure made of methyl cellulose, polyvinyl alcohols, or denatured gelatins or starch for holding or containing compositions comprising the active ingredients.
• Hard shell capsules are typically made of blends of relatively high gel strength bone and pork skin gelatins.
• the capsule itself may contain small amounts of dyes, opaquing agents, plasticizers and preservatives.
• Tablet means compressed or molded solid dosage form containing the active ingredients with suitable diluents.
• the tablet can be prepared by compression of mixtures or granulations obtained by wet granulation, dry granulation or by compaction well known to a person skilled in the art.
• Oral gels refers to the active ingredients dispersed or solubilized in a hydrophilic semi-solid matrix.
• Powders for constitution refer to powder blends containing the active ingredients and suitable diluents which can be suspended in water or juices.
• suitable diluents which can be suspended in water or juices.
• One example for such an oral administration form for newborns, toddlers and/or infants is a human breast milk substitute which is produced from milk powder and milk whey powder, optionally and partially substituted with lactose.
• Human breast milk is a complex fluid, rich in nutrients and in non-nutritional bioactive components. It contains all of the nutrients needed by the newborn baby. These include the metabolic components (fat, protein, and carbohydrates), water, and the raw materials for tissue growth and development, such as fatty acids, amino acids, minerals, vitamins, and trace elements.
• lipid component of breast milk is the transport vehicle for fat-soluble micronutrients such as prostaglandins and vitamins A, D, E, and K.
• Proteins account for approximately 75% of the nitrogen-containing compounds in breast milk.
• Non-protein nitrogen substances include urea, nucleotides, peptides, free amino acids, and DNA.
• the proteins of breast milk can be divided into two categories: micellar caseins and aqueous whey proteins, present in the ratio of about 40:60. Casein forms micelles of relatively small volume and produces a soft, flocculent curd in the infant's stomach.
• the major whey proteins are lactalbumin, lactoferrin, secretory IgA, and serum albumin, with a large number of other proteins and peptides present in smaller amounts.
• lactose a disaccharide produced in the mammary epithelial cell from glucose by a reaction involving lactalbumin.
• breast milk contains a wealth of bioactive components that have beneficial non-nutritional functions. These include a wide range of specific and non-specific antimicrobial factors; cytokines and anti-inflammatory substances; and hormones, growth modulators, and digestive enzymes (Table 1), many of which have multiple activities. These components may be of particular importance for young infants because of the immaturity of the host defense and digestive systems early in life.
• infant formula is the only other infant milk which the medical community considers nutritionally acceptable for infants under the age of one year. Cow's milk is not recommended because of its high protein and electrolyte (salt) content which may harm infant's immature kidneys.
• the nutrient content of infant formula should comprise: Protein, Fat, Linoleic acid, Vitamins: A, C, D, E, K, thiamin (B1), riboflavin (B2), B6, B12, Niacin, Folic acid, Pantothenic acid, Calcium, Metals: magnesium, iron, zinc, manganese, copper; Phosphorus, Iodine, Sodium chloride, Potassium chloride.
• Baby formulas not made with cow's milk must include biotin, choline, and inositol. Hypoallergenic formulas reduce the likelihood of certain medical complications in babies with specific health problems. Baby formula can be synthesized from raw amino acids. This kind of formula is sometimes referred to as elemental infant formula or as medical food because of its specialized nature. Powder blends containing the active ingredients and suitable diluents which can be suspended in water or juices can be produced by spray drying.
• Spray drying has been found the most suitable process for removing the last part of the water, since spray drying can convert milk concentrate into a powder while still keeping the valuable properties of the milk.
• the principle of all spray dryers is to transform the concentrate into many small droplets which are then exposed to a fast current of hot air. Because of the very large surface area of the droplets, the water evaporates almost instantaneously and the droplets are transformed into powder particles.
• Powdered milk is a powder made from dried milk solids. Powdered milk has a far longer shelf life than liquid milk and does not need to be refrigerated due to its low moisture content.
• Instant milk powder is produced by partially rehydrating the dried milk powder particles causing them to become sticky and agglomerate. The water is then removed by drying resulting in an increased amount of air incorporated between the powder particles.
• Milk powder manufacture is a process carried out on a large scale. It involves the gentle removal of water, while retaining all the desirable natural properties of the milk like colour, flavour, solubility, nutritional value.
• Milk powder process includes spray drying, fluid bed processing, extraction, evaporation and freeze drying. Other processes are freeze concentration, filteration, and homogenisation.
• the artificial mother milk formulations or mother milk substitutes of the present invention are preferably prepared by adding to a mother milk formulation including commercially available mother milk formulations especially in power form the peptide of the present invention.
• the peptide is preferably added in an amount of 3-100 ⁇ g peptide or per 100 ml (commercially available) mother milk formulation, more preferably in an amount of 5-70 ⁇ g/100 ml and most preferably in an amount of 10-40 ⁇ g/100 ml mother milk formulation.
• Suitable diluents are substances that usually make up the major portion of the composition or dosage form. Suitable diluents include sugars such as lactose, sucrose, mannitol and sorbitol, starches derived from wheat, corn rice and potato, and celluloses such as microcrystalline cellulose.
• the amount of diluents in the composition can range from about 5 to about 95% by weight of the total composition, preferably from about 25 to about 75%, more preferably from about 30 to about 60% by weight, and most preferably from about 40 to 50% by weight.
• disintegrants refers to materials added to the composition to help it break apart (disintegrate) and release the medicaments.
• Suitable disintegrants include starches, “cold water soluble” modified starches such as sodium carboxymethyl starch, natural and synthetic gums such as locust bean, karaya, guar, tragacanth and agar, cellulose derivatives such as methylcellulose and sodium carboxymethylcellulose, microcrystalline celluloses and cross-linked microcrystalline celluloses such as sodium croscarmellose, alginates such as alginic acid and sodium alginate, clays such as bentonites, and effervescent mixtures.
• the amount of disintegrant in the composition can range from about 1 to about 40% by weight of the composition, preferably 2 to about 30% by weight of the composition, more preferably from about 3 to 20% by weight of the composition, and most preferably from about 5 to about 10% by weight.
• Binders characterize substances that bind or “glue” powders together and make them cohesive by forming granules, thus serving as the “adhesive” in the formulation. Binders add cohesive strength already available in the diluents or bulking agent. Suitable binders include sugars such as sucrose, starches derived from wheat, corn rice and potato; natural gums such as acacia, gelatin and tragacanth; derivatives of seaweed such as alginic acid, sodium alginate and ammonium calcium alginate; cellulosic materials such as methylcellulose and sodium carboxymethylcellulose and hydroxypropyl-methylcellulose; polyvinylpyrrolidone; and inorganics such as magnesium aluminum silicate.
• the amount of binder in the composition can range from about 1 to 30% by weight of the composition, preferably from about 2 to about 20% by weight of the composition, more preferably from about 3 to about 10% by weight, even more preferably from about 3 to about 6% by weight.
• Lubricant refers to a substance added to the dosage form to enable the tablet, granules, etc. after it has been compressed, to release from the mold or die by reducing friction or wear.
• Suitable lubricants include metallic stearates such as magnesium stearate, calcium stearate or potassium stearate; stearic acid; high melting point waxes; and water soluble lubricants such as sodium chloride, sodium benzoate, sodium acetate, sodium oleate, polyethylene glycols and d'l-leucine. Lubricants are usually added at the very last step before compression, since they must be present on the surfaces of the granules and in between them and the parts of the tablet press.
• the amount of lubricant in the composition can range from about 0.05 to about 15% by weight of the composition, preferably 0.2 to about 5% by weight of the composition, more preferably from about 0.3 to about 3%, and most preferably from about 0.3 to about 1.5% by weight of the composition.
• Glidents are materials that prevent caking and improve the flow characteristics of granulations, so that flow is smooth and uniform.
• Suitable glidents include silicon dioxide and talc.
• the amount of glident in the composition can range from about 0.01 to 10% by weight of the composition, preferably 0.1% to about 7% by weight of the total composition, more preferably from about 0.2 to 5% by weight, and most preferably from about 0.5 to about 2% by weight.
• Coloring agents are excipients that provide coloration to the composition or the dosage form. Such excipients can include food grade dyes and food grade dyes adsorbed onto a suitable adsorbent such as clay or aluminum oxide.
• the amount of the coloring agent can vary from about 0.01 to 10% by weight of the composition, preferably from about 0.05 to 6% by weight, more preferably from about 0.1 to about 4% by weight of the composition, and most preferably from about 0.1 to about 1%.
• the peptide of the invention can be used to form multiparticulates, discrete particles, well known dosage forms, whose totality represents the intended therapeutically useful dose of a drug.
• multiparticulates When taken orally, multiparticulates generally disperse freely in the gastrointestinal tract, and maximize absorption.
• a specific example is described in U.S. Pat. No. 6,068,859, disclosing multiparticulates that provide controlled release of azithromycin.
• Another advantage of the multiparticulates is the improved stability of the drug.
• the poloxamer component of the multiparticulate is very inert, thus minimizing degradation of the drug.
• the multiparticulates are preferably formed into round beads or spheres. Some carriers, when melted and then solidified, do not form round beads but may solidify into rods, strings, or other non-spherical shapes. The result is very irregularly shaped multiparticulates that are difficult to process into dosage forms.
• This problem is solved by e.g. WO 2007104173 where the particles consist of a poloxamer, a resin, and/or a tocopherol, creating together with the medicament (e.g. insulin) micelles. Micelle formation is essential for the absorption of many nutrients within the human body.
• Bile salts formed in the liver and secreted by the gall bladder allow micelles of fatty acids to form. This allows the absorption of complicated lipids and lipid soluble vitamins within the micelle by the small intestine.
• Micelles are approximately spherical in shape.
• peptide of the invention are formulated with a poloxamer and a resin to form micelles suitable for oral administration to patients in need of the medicament.
• Liquid form preparations include solutions, suspensions and emulsions. As an example may be mentioned water or water-propylene glycol solutions for parenteral injections or addition of sweeteners and opacifiers for oral solutions, suspensions and emulsions. Liquid form preparations may also include solutions for intranasal administration.
• buffered solutions when used with reference to hydrogen-ion concentration or pH, refers to the ability of a system, particularly an aqueous solution, to resist a change of pH on adding acid or alkali, or on dilution with a solvent.
• carboxylic acid buffers such as acetate and carboxylic diacid buffers such as fumarate, tartrate and phthalate and carboxylic triacid buffers such as citrate.
• carboxylic acid buffers such as acetate and carboxylic diacid buffers such as fumarate, tartrate and phthalate and carboxylic triacid buffers such as citrate.
• Another group of preferred buffers is represented by inorganic buffers such as sulfate, borate, carbonate, oxalate, calcium hydroxyde and phosphate buffers.
• nitrogen containing buffers such as imidazole, diethylenediamine, and piperazine.
• sulfonic acid buffers such as TES, HEPES, ACES, PIPES, [(2-hydroxy-1,1-bis(hydroxymethyl)ethyl)amino]-1-propanesulfonic acid (TAPS), 4-(2-hydroxyethyl)piperazine-1-propanesulfonic acid (EPPS), 4-Morpholinepropanesulfonic acid (MOPS) and N,N-bis(2-hydroxyethyl)-2-aminoethanesulfonic acid (BES).
• TAPS 2-hydroxy-1,1-bis(hydroxymethyl)ethyl)amino]-1-propanesulfonic acid
• EPPS 4-(2-hydroxyethyl)piperazine-1-propanesulfonic acid
• MOPS 4-Morpholinepropanesulfonic acid
• BES N,N-bis(2-hydroxyethyl)-2-aminoethanesulfonic acid
• glycine buffers such as glycine, glycyl-glycine, glycyl-glycyl-glycine, N,N-bis(2-hydroxyethyl)glycine and N-[2-hydroxy-1,1-bis(hydroxy-methyl)ethyl]glycine (Tricine).
• amino acid buffers such as glycine, alanine, valine, leucine, isoleucine, serine, threonine, phenylalanine, tyrosine, tryptophane, lysine, arginine, histidine, aspartate, glutamate, asparagine, glutamine, cysteine, methionine, proline, 4-hydroxyproline, N,N,N-trimethyllysine, 3-methylhistidine, 5-hydroxylysine, O-phosphoserine, ⁇ -carboxyglutamate, ⁇ -N-acetyllysine, ⁇ -N-methylarginine, citrulline, ornithine and derivatives thereof.
• amino acid buffers such as glycine, alanine, valine, leucine, isoleucine, serine, threonine, phenylalanine, tyrosine, tryptophane, lysine, arginine, histidine,
• buffers effective pH range pKa 25° C. buffer 2.7-4.2 3.40 malate (pK1) 3.0-4.5 3.75 formate 3.0-6.2 4.76 citrate (pK2) 3.2-5.2 4.21 succinate (pK1) 3.6-5.6 4.76 acetate 3.8-5.6 4.87 propionate 4.0-6.0 5.13 malate (pK2) 4.9-5.9 5.23 pyridine 5.0-6.0 5.33 piperazine (pK1) 5.0-7.4 6.27 cacodylate 5.5-6.5 5.64 succinate (pK2) 5.5-6.7 6.10 MES 5.5-7.2 6.40 citrate (pK3) 5.5-7.2 6.24 maleate (pK2) 5.5-7.4 1.70, 6.04, 9.09 histidine 5.8-7.2 6.46 bis-tris 5.8-8.0 7.20 phosphate (pK2) 6.0-12.0 9.50 ethanolamine 6.0-7.2 6.59 ADA 6.0-8.0 6.35 carbonate (pK1) 6.1-7.5 6.78 ACES 6.1-7.5 6.76 P
• buffers suitable for pharmaceutical use e.g. buffers suitable for administration to a patient such as acetate, carbonate, citrate, fumarate, glutamate, lactate, phosphate, phthalate, and succinate buffers.
• buffers suitable for administration to a patient such as acetate, carbonate, citrate, fumarate, glutamate, lactate, phosphate, phthalate, and succinate buffers.
• Particularly preferred examples of commonly used pharmaceutical buffers are acetate buffer, citrate buffer, glutamate buffer and phosphate buffer.
• group of carboxylic acid buffers are also most preferred.
• the term “carboxylic acid buffers” as used herein shall refer to carboxylic mono acid buffers and carboxylic diacid buffers as well as carboxylic triacid buffers.
• Some suitable pharmaceutical buffers are a citrate buffer (preferably at a final formulation concentration of from about 20 to 200 mM, more preferably at a final concentration of from about 30 to 120 mM) or an acetate buffer (preferably at a final formulation concentration of about 20 to 200 mM) or a phosphate buffer (preferably at a final formulation concentration of about 20 to 200 mM).
• a suitable composition comprising the peptide mentioned herein may be a solution of the peptide in a suitable liquid pharmaceutical carrier or any other formulation such as tablets, pills, film tablets, coated tablets, dragees, capsules, powders and deposits, gels, syrups, slurries, suspensions, emulsions, and the like.
• a particularly preferred pharmaceutical composition is a lyophilised (freeze-dried) preparation (lyophilisate) suitable for administration by inhalation or for intravenous administration.
• lyophilised preparation the peptide of the invention are solubilised in a 4 to 5% (w/v) mannitol solution and the solution is then lyophilised.
• the mannitol solution can also be prepared in a suitable buffer solution as described above.
• cryo-/lyoprotectants include thiol-free albumin, immunoglobulins, polyalkyleneoxides (e.g. PEG, polypropylene glycols), trehalose, glucose, sucrose, sorbitol, dextran, maltose, raffinose, stachyose and other saccharides (cf. for instance WO 97/29782), while mannitol is used preferably.
• PEG polyalkyleneoxide
• trehalose e.g. PEG, polypropylene glycols
• trehalose glucose
• sucrose sucrose
• sorbitol dextran
• maltose raffinose
• stachyose stachyose
• other saccharides cf. for instance WO 97/29782
• the particle diameter of the lyophilised preparation is preferably between 2 to 5 ⁇ m, more preferably between 3 to 4 ⁇ m.
• the lyophilised preparation is particularly suitable for administration using an inhalator, for example the OPTINEB® or VENTA-NEB® inhalator (NEBU-TEC, Elsenfeld, Germany).
• the lyophilised product can be rehydrated in sterile distilled water or any other suitable liquid for inhalation administration.
• the lyophilised product can be rehydrated in sterile distilled water or any other suitable liquid for intravenous administration.
• the lyophilised preparation After rehydration for administration in sterile distilled water or another suitable liquid the lyophilised preparation should have the approximate physiological osmolality of the target tissue for the rehydrated peptide preparation i.e. blood for intravenous administration or lung tissue for inhalation administration.
• the rehydrated formulation is substantially isotonic.
• the preferred dosage concentration for either intravenous, oral, or inhalation administration is between 100 to 2000 ⁇ mole/ml, and more preferably is between 200 to 800 ⁇ mole/ml. These are also the preferred ranges of the peptide in the mother milk substitute or artificial mother milk formulation or the pharmaceutical compositions disclosed herein.
• Still another aspect of the present invention relates to the use of disclosed peptides as a dietary supplement.
• That dietary supplement is preferably for oral administration and especially but not limited to administration to newborns, toddlers, and/or infants.
• a dietary supplement is intended to supplement the diet.
• the “dietary ingredients” in these products may in addition include: vitamins, minerals, herbs or other botanicals, amino acids, and substances such as enzymes, organ tissues, glandulars, and metabolites.
• Dietary supplements may be manufactured in forms such as tablets, capsules, softgels, gelcaps, liquids, or powders.
• Another aspect of the present invention relates to a method of prophylaxis and/or treatment of cancer, an autoimmune disease, a fibrotic disease, an inflammatory disease, a neurodegenerative disease, an infectious disease, a lung disease, a heart and vascular disease or a metabolic disease or any other disease disclosed hereinan infectious disease, an autoimmune disease, a fibrotic disease, an inflammatory disease, a neurodegenerative disease, or a heart and vascular disease comprising administering to a patient in need thereof a pharmaceutical composition comprising the peptide Pyr-Gly-Leu-Pro-Pro-Arg-Pro-Lys-Ile-Pro-Pro-OH in a therapeutically effective amount effective to treat the afore-mentioned disease. according to the present invention.
• the terms “prophylaxis” or “treatment” includes the administration of the peptide of the present invention to prevent, inhibit, or arrest the symptoms of an infectious disease, an autoimmune disease, a fibrotic disease, an inflammatory disease, a neurodegenerative disease, or a heart and vascular disease.
• treatment with the peptides of the present invention will be done in combination with other protective compounds to prevent, inhibit, or arrest the symptoms of an infectious disease, an autoimmune disease, a fibrotic disease, an inflammatory disease, a neurodegenerative disease, or a heart and vascular disease.
• active agent or “therapeutic agent” as used herein refers to an agent that can prevent, inhibit, or arrest the symptoms and/or progression of an infectious, an autoimmune disease, a fibrotic disease, an inflammatory disease, a neurodegenerative disease, or a heart and vascular disease or any other disease disclosed herein.
• therapeutic effect refers to the effective provision of protection effects to prevent, inhibit, or arrest the symptoms and/or progression of an infectious, an autoimmune disease, a fibrotic disease, an inflammatory disease, a neurodegenerative disease, or a heart and vascular disease.
• a therapeutically effective amount means a sufficient amount of the peptide of the invention to produce a therapeutic effect, as defined above, in a subject or patient in need of treatment.
• subject or “patient” are used herein mean any mammal, including but not limited to human beings, including a human patient or subject to which the compositions of the invention can be administered.
• mammals include human patients and non-human primates, as well as experimental animals such as rabbits, rats, and mice, and other animals.
• the peptide of the present invention can be used for the prophylaxis and/or treatment of cancer, an autoimmune disease, a fibrotic disease, an inflammatory disease, a neurodegenerative disease, an infectious disease, a lung disease, a heart and vascular disease or a metabolic disease or any other disease mentioned herein in combination administration with another therapeutic compound.
• the term “combination administration” of a compound, therapeutic agent or known drug with the peptide of the present invention means administration of the drug and the peptide at such time that both the known drug and the peptide will have a therapeutic effect. In some cases this therapeutic effect will be synergistic.
• Such concomitant administration can involve concurrent (i.e.
• a peptide is deemed to have therapeutic activity if it demonstrated any one of the following activities listed in a) to g).
• the peptide could inhibit the activity of an over active biological pathway. b) The peptide could inhibit the production of an over produced biological molecule. c) The peptide could inhibit the activity of an over produced biological molecule. d) The peptide could increase the activity of an under active biological pathway. e) The peptide could increase the production of an under produced biological molecule. f) The peptide could mimic the activity of an under produced biological molecule. g) The peptide could prevent, inhibit, or arrest the symptoms and/or progression of cancer, an infectious disease, an autoimmune disease, a fibrotic disease, an inflammatory disease, a neurodegenerative disease, or a heart and vascular disease or any other disease disclosed herein.
• inhibition is defined as a reduction of the activity or production of a biological pathway or molecule activity of between 10 to 100%. More preferably the reduction of the activity or production of a biological pathway or molecule activity is between 25 to 100%. Even more preferably the reduction of the activity or production of a biological pathway or molecule activity is between 50 to 100%.
• increase is defined as an increase of the activity or production of a biological pathway or molecule of between 10 to 100%. More preferably the increase of the activity or production of a biological pathway or molecule activity is between 25 to 100%. Even more preferably the increase of the activity or production of a biological pathway or molecule activity is between 50 to 100%.
• mic is defined as an increase in the activity of a biological pathway dependent on the under produced biological molecule of between 10 to 100%. More preferably the increase of the activity of the biological pathway is between 25 to 100%. Even more preferably the increase of the activity the biological pathway is between 50 to 100%.
• the following peptide of the invention was for tested for the activity as a therapeutic agent for the prophylaxis and/or treatment of cancer, an infectious disease, an autoimmune disease, a fibrotic disease, an inflammatory disease, a neurodegenerative disease, or a heart and vascular disease:
• Bradykinin Potentiator B in brackets after the peptide sequence Pyr-Gly-Leu-Pro-Pro-Arg-Pro-Lys-Ile-Pro-Pro-OH is an abbreviation or synonym of said peptide.
• the present invention relates to the use of the above-mentioned peptides as pharmaceutically active agents in medicine, i.e. as medicament.
• Advantage of the peptide of the invention is that the peptide is less toxic in comparison to the commonly used drugs for the certain indications mentioned herein and that the peptide have less side effects, can be used for a long term treatment of certain diseases and can be easily administered.
• the peptide are selective for certain targets and under physiological conditions no toxic or noxious degradation products are formed.
• peptide(s) or “peptide(s) of the invention” shall also refer to salts, deprotected form, acetylated form of the peptide, deacetylated form of the peptide, enantiomers, diastereomers, racemates, prodrugs and hydrates of the above-mentioned peptides.
• Diastereomers of the peptide are obtained when the stereochemical or chiral center of one or more amino acids is changed.
• the enantiomer has the opposite stereochemistry at all chiral centers.
• prodrug refers to any precursor compound which is able to generate or to release the above-mentioned peptide under physiological conditions.
• Such prodrugs i.e. such precursor molecules are for instance larger peptides which are selectively cleaved in order to form one of the above-mentionedthe peptides of the invention.
• Further prodrugs are protected amino acids having especially protecting groups at the carboxylic acid and/or amino group.
• Suitable protecting groups for amino groups are the benzyloxycarbonyl, t-butyloxycarbonyl (BOC), formyl, and acetyl or acyl group.
• Suitable protecting groups for the carboxylic acid group are esters such as benzyl esters or t-butyl esters.
• the present invention also includes the above peptides having amino acid substitutions, deletions, additions, the substitutions and additions including the standard D and L amino acids and modified amino acids such as for example amidated and acetylated amino acids, wherein the therapeutic activity of the base peptide sequence as shown above is maintained.
• D-2-NaI is 2-naphthyl-D-alanine
• SertBu is t-butyl serine
• Azagly is aza glycine
• Me is methyl
• Met(O) is methionine sulfoxide
• Pyr and “pGlu” are pyroglutamic acid
• Tyr(SO3H) is sulphated tyrosine
• Tyr(Me) is methyltyrosine
• NHEt is ethylamide.
• the peptides as listed above were tested for activity using the assays described in Examples 1 to 17.
• the tested peptides are all commercially available.
• CEM-SS cells were passaged in T-75 flasks prior to use in the antiviral assay. On the day preceding the assay, the cells were split 1:2 to assure they were in an exponential growth phase at the time of infection. Total cell viability quantification was performed using a hemacytometer and trypan blue exclusion. Cell viability was greater than 95% for the cells to be utilized in the assay. The cells were resuspended at 5 ⁇ 10 4 cells/ml in tissue culture medium and added to the peptide-containing microtiter plates in a volume of 50 microliters.
• the virus used was the lymphocytotropic strain HIV-1 IIIB .
• Virus was obtained from NIH AIDS Research and Reference Reagent Program and was grown in CEM-SS cells for the production of stock virus pools. For each assay, a pre-titered aliquot of virus was removed from the freezer ( ⁇ 80° C.) and allowed to thaw slowly to room temperature in a biological safety cabinet. The virus was resuspended and diluted into tissue culture medium such that the amount of virus added to each well in a volume of 50 microliters was the amount determined to give between 85% to 95% cell killing after 6 days post-infection.
• TCID 50 calculations by endpoint titration in CEM-SS cells indicated that the multiplicity of infection was approximately 0.01.
• AZT nucleoside reverse transcriptase inhibitor
• PI proteavir
• Each plate contained cell control wells (cells only), virus control wells (cells plus virus), drug cytotoxicity wells (cells plus peptide only), peptide colorimetric control wells (peptide only) as well as experimental wells (peptide—10 micrograms per ml—plus cells plus virus). Samples were evaluated for antiviral efficacy with triplicate measurements and with duplicate measurements to determine cellular cytotoxicity, if detectable.
• MTS soluble tetrazolium-based dye
• CellTiter 96 Reagent CellTiter 96 Reagent, Promega
• MTS is metabolized by the mitochondrial enzymes of metabolically active cells to yield a soluble formazan product, allowing the rapid quantitative analysis of cell viability and peptide cytotoxicity.
• This reagent is a stable, single solution that does not require preparation before use.
• 20-25 microliters of MTS reagent was added per well and the microtiter plates were then incubated for 5 hours at 37° C., and 5% CO 2 to assess cell viability.
• Adhesive plate sealers were used in place of lids, the sealed plates were inverted several times to mix the soluble formazan product and the plate was read spectrophotometrically at 490/560 nm with a Molecular Devices Vmax plate reader.
• the overall assay performance was valid based upon judgement of the positive control compounds AZT and indinavir exhibiting the expected levels of antiviral activity. Macroscopic observation of the cells in each well of the microtiter plate confirmed the cytotoxicity results obtained following staining of the cells with the MTS metabolic dye.
• HepG2-2.2.15 is a stable cell line containing the hepatitis B virus (HBV) ayw strain genome (ATCC Cat. No. CRL-11997).
• Antiviral compounds blocking any late step of viral replication such as transcription, translation, pregenome encapsidation, reverse transcription, particle assembly and release can be identified and characterized using this cell line.
• an active compound will reduce the production of secreted HBV from cells, measured by utilizing real time quantitative PCR (TaqMan) assay to directly and accurately measure HBV DNA copies. The analysis of this data allows to calculate:
• HepG2-2.2.15 cells were plated in 96-well microtiter plates. After 16-24 hours the confluent monolayer of HepG2-2.2.15 cells was washed and the medium was replaced with complete medium containing test peptide—10 micrograms per ml—in duplicate. Lamivudine (3TC) was used as the positive control, while media alone was added to the cells as a negative control (virus control). Three days later the culture medium was replaced with fresh medium containing the peptide. Six days following the initial administration of the peptide, the cell culture supernatants was collected, treated with pronase and DNAse and then used in a real-time quantitative TaqMan PCR assay.
• the PCR-amplified HBV DNA was detected in real-time by monitoring increases in fluorescence signals that result from the exonucleolytic degradation of a quenched fluorescence probe molecule that hybridizes to the amplified HBV DNA.
• a standard curve was simultaneously generated using dilutions of purified HBV DNA.
• Antiviral activity was calculated from the reduction in HBV DNA levels (% virus control).
• a novel dye uptake assay was then employed to measure cell viability, which is used to calculate toxicity (% cell control).
• MRC-5 cells human embryonal lung fibroblasts
• ATCC CCL-171 American Type Culture Collection
• EMEM Eagle's Minimum Essential Medium with Earle's BSS
• FBS fetal bovine serum
• FBS fetal bovine serum
• 0.1 mM non-essential amino acids 1.0 mM sodium pyruvate, 2.0 mM L-Glutamine, 100 units/ml Penicillin and 100 micrograms/ml Streptomycin. Cells were split twice a week 1:2.
• HCMV strain AD169 was obtained from ATCC (ATCC VR-538).
• Virus stocks were prepared by infecting 80% confluent MRC-5 cells at a minimal multiplicity of infection in MRC-5 growth medium containing 2% FBS. Monolayers were incubated at 37° C., 5% CO 2 until 90%-95% viral cytopathic effect (CPE) was observed (10-13 days). Culture medium was then collected from the cells, centrifuged at low speed to remove cellular debris, aliquoted in 1 ml volumes and stored at ⁇ 80° C. as stock virus.
• CPE viral cytopathic effect
• MRC-5 cells were seeded at 75,000 cells/well in 24 well plates using MRC-5 growth medium. The plates were incubated overnight at 37° C., 5% CO 2 . The following day, media was removed and 100 plaque forming units (pfu) of HCMV was added to the wells. Virus was allowed to adsorb onto the cells for 1 hour at 37° C., 5% CO 2 . Peptide was diluted—10 micrograms per ml—in assay medium containing 0.5% Methylcellulose.
• MRC-5 cells were seeded at 2,500 cells/well in 96 well plates using growth medium. The plates were incubated overnight at 37° C., 5% CO 2 . The following day, peptide was added and tested in duplicates. After a 6 days incubation period, cell viability was measured using CellTiter 96 Solution (Promega). Plates were incubated for additional 4 hours at 37° C. Adhesive plate sealers were used in place of lids, the sealed plates were inverted several times to mix the soluble formazan product and the plate was read spectrophotometrically at 490/560 nm with a Molecular Devices Vmax plate reader.
• the overall assay performance was valid based upon judgement of the positive control compound Ganciclovir exhibiting the expected levels of antiviral activity. Macroscopic observation of the cells in each well of the microtiter plate confirmed the cytotoxicity results obtained following staining of the cells with the MTS metabolic dye.
• MRSA Methicillin Resistant Staphylococcus Aureus
• the antibacterial assay was conducted using clear, U-bottom 96-well microtiter plates. Cation-adjusted Mueller-Hinton Broth (MHB) was used for testing MRSA.
• the peptide of the invention (0.1 ml of each—10 micrograms per ml—) was dispensed into wells in duplicate. Then the wells were inoculated with 5 ⁇ 10 5 CFU/mL MRSA in 0.1 ml volume.
• each plate included 4 wells containing media without bacterial inoculum and 4 wells containing medium with inoculum but without peptide. The plates were incubated for 12 h at 37° C., and read visually 18-24 hours post-incubation.
• MRSA MRSA-resistant swine-resistant swine-resistant swine-resistant swine-resistant swine-resistant swine-resistant swine-resistant swine-resistant swine-resistant swine-resistant swine-resistant swine-resistant swine-resistant swine-resistant swine-resistant swine-resistant swine-resistant swine, or obvious turbidity in the culture supernatant. Test wells were examined and scored as positive/negative for activity. A positive score for activity is based on complete inhibition of macroscopic growth of the test MRSA.
• the antibacterial assay was conducted using clear, U-bottom 96-well microtiter plates. Cation-adjusted Mueller-Hinton Broth (MHB) was used for testing Pseudomonas aeruginosa .
• the peptide of the invention (0.1 ml of each—10 micrograms per ml—) was dispensed into wells in duplicate. Then the wells were inoculated with 5 ⁇ 10 5 CFU/mL Pseudomonas aeruginosa in 0.1 ml volume.
• each plate included 4 wells containing media without bacterial inoculum and 4 wells containing medium with inoculum but without peptide.
• the plates were incubated for 12 h at 37° C., and read visually 18-24 hours post-incubation.
• Growth control of Pseudomonas aeruginosa was examined first to determine adequacy of media preparations and growth conditions. Acceptable growth is defined as ⁇ 2 mm wide button of cells at the bottom of each sample well, or obvious turbidity in the culture supernatant.
• Test wells were examined and scored as positive/negative for activity. A positive score for activity is based on complete inhibition of macroscopic growth of the test Pseudomonas aeruginosa.
• the antibacterial assay was conducted using clear, U-bottom 96-well microtiter plates. Cation-adjusted Mueller-Hinton Broth (MHB) was used for testing Streptococcus pneumoniae .
• the peptide of the invention (0.1 ml of each—10 micrograms per ml—) was dispensed into wells in duplicate. Then the wells were inoculated with 5 ⁇ 10 5 CFU/mL Streptococcus pneumoniae in 0.1 ml volume.
• each plate included 4 wells containing media without bacterial inoculum and 4 wells containing medium with inoculum but without peptide.
• the plates were incubated for 12 h at 37° C., and read visually 18-24 hours post-incubation.
• Growth control of Streptococcus pneumoniae was examined first to determine adequacy of media preparations and growth conditions. Acceptable growth is defined as ⁇ 2 mm wide button of cells at the bottom of each sample well, or obvious turbidity in the culture supernatant.
• Test wells were examined and scored as positive/negative for activity. A positive score for activity is based on complete inhibition of macroscopic growth of the test Streptococcus pneumoniae.
• the antibacterial assay was conducted using clear, U-bottom 96-well microtiter plates. Middlebrook 7H12 assay medium was used for testing drug-resistant Mycobacterium tuberculosis .
• the peptide of the invention (0.1 ml of each—10 micrograms per ml—) was dispensed into wells in duplicate. Then the wells were inoculated with 5 ⁇ 10 5 CFU/mL Mycobacterium tuberculosis in 0.1 ml volume.
• each plate included 4 wells containing media without bacterial inoculum and 4 wells containing medium with inoculum but without peptide. The plates were incubated for seven days at 37° C., and read visually thereafter.
• Mycobacterium tuberculosis was examined first to determine adequacy of media preparations and growth conditions. Acceptable growth is defined as ⁇ 2 mm wide button of cells at the bottom of each sample well, or obvious turbidity in the culture supernatant. Test wells were examined and scored as positive/negative for activity. A positive score for activity is based on complete inhibition of macroscopic growth of the test Mycobacterium tuberculosis .
• the drug-resistant Mycobacterium tuberculosis that was used in the assay is resistant against following medicaments: para-aminosalicylic acid (PAS), streptomycin and isoniazid (INH).
• PAS para-aminosalicylic acid
• IH isoniazid
• Human A549 cells (carcinomic human alveolar basal epithelial cells) were utilized in the experiments employing the Propidium iodide cell cycle assay.
• the eukaryotic cell cycle is a series of events that take place in a cell leading to its replication.
• the regulation of the cell cycle involves steps crucial to the cell, including detecting and repairing genetic damage, and provision of various checks to prevent uncontrolled cell division.
• the molecular events that control the cell cycle are ordered and directional; that is, each process occurs in a sequential fashion.
• the cell cycle consists of four distinct phases: G 1 phase, S phase, G 2 phase (collectively known as interphase) and M phase.
• M phase is itself composed of two tightly coupled processes: mitosis, in which the cell's chromosomes are divided between the two daughter cells, and cytokinesis, in which the cell's cytoplasm divides forming distinct cells. Activation of each phase is dependent on the proper progression and completion of the previous one. Cells that have temporarily or reversibly stopped dividing are said to have entered a state of quiescence called G o phase.
• the relatively brief M phase consists of nuclear division and cytoplasmic division.
• the first phase within interphase, from the end of the previous M phase till the beginning of DNA synthesis is called G 1 (G indicating gap or growth). During this phase the biosynthetic activities of the cell resume at a high rate.
• This phase is marked by synthesis of various enzymes that are required in S phase, mainly those needed for DNA replication.
• S phase starts when DNA synthesis commences; when it is complete, all of the chromosomes have been replicated.
• the cell then enters the G 2 phase, which lasts until the cell enters mitosis.
• Significant protein synthesis occurs during this phase, mainly involving the production of microtubules, which are required during the process of mitosis. Inhibition of protein synthesis during G 2 phase prevents the cell from undergoing mitosis.
• Disregulation of the cell cycle components may lead to tumor formation.
• Propidium iodide is an intercalating agent and a fluorescent molecule that can be used to stain DNA.
• Cells were incubated for 24 hours with test peptide—10 micrograms per ml—or left untreated. After that cells were trypsinized, suspended in medium +10% FCS, centrifuged (1000 rpm, 5 min), and the cell pellet resuspended in PBS (1 ml). The cells were pipetted into 2.5 ml absolute EtOH (final concentration approx. 70%) and incubated on ice for 15 min. Thereafter, cells were pelleted at 1500 rpm for 5 min and resuspended in Propidium iodide solution in PBS. After incubation for 40 min at 37° C., cells were analyzed in the FACS.
• PBMC Human Peripheral Blood Mononuclear Cells
• PHA phytohemagglutinin
• 10 5 /well PBMC were plated in 96-well microtiter plates and assayed in duplicate with the peptide.
• Cell cultures were incubated at 37° C. for 3 days in a 5% CO 2 incubator and were thereafter pulsed with 1 microCi/well 3 H-thymidine for additional 12 hours of culture. At the end of incubation time, the plates were harvested and the cells counted by liquid scintillation for the incorporation of 3 H-thymidine as a measure of T cell proliferation.
• PBMC Human Peripheral Blood Mononuclear Cells
• SAC Staphylococcus aureus Cowans I
• Interleukin-2 Interleukin-2
• 10 5 /well PBMC were plated in 96-well microtiter plates and assayed in duplicate with the peptide.
• Cell cultures were incubated at 37° C. for 3 days in a 5% CO 2 incubator and were thereafter pulsed with 1 microCi/well 3 H-thymidine for additional 12 hours of culture. At the end of incubation time, the plates were harvested and the cells counted by liquid scintillation for the incorporation of 3 H-thymidine as a measure of B cell proliferation.
• RAW 264.7 (Mouse leukaemic monocyte macrophage cell line) cells were obtained from ATCC and grown in RPMI 1640 medium containing 10% FBS. Cells were incubated in 12 ⁇ 75 mm tubes at 37° C. with test peptide—10 micrograms per ml—for 30 min prior to adding Fluorescein-labeled Escherichia coli bacteria as the agent to be ingested. After the cells were incubated for additional 60 min at 37° C. and allowed to ingest the Fluorescein-labeled Escherichia coli bacteria, cells were fixed with 1% paraformaldehyde.
• the samples were then analyzed by flow cytometry to determine the amount of phagocytosis as a function of brightness (the greater the phagocytic activity, the more fluorescence in the macrophage population). Data are reported as % positive and the mean fluorescence intensity (MFI) of positively stained cells.
• Annexin-5 is a member of a highly conserved protein family that binds acidic phospholipids in a calcium-dependent manner. Annexin-5 possesses a high affinity for phosphatidylserine. Phosphatidylserine is translocated from the inner side of the plasma membrane to the outer layer when cells undergo death by apoptosis or cell necrosis and serves as a signal by which cell destined for death are recognized by phagocytes. Test peptide—10 micrograms per ml—were exposed for 24 hours to the A549 cells before they were analyzed for signs of apoptosis.
• Annexin-5 is a member of a highly conserved protein family that binds acidic phospholipids in a calcium-dependent manner. Annexin-5 possesses a high affinity for phosphatidylserine. Phosphatidylserine is translocated from the inner side of the plasma membrane to the outer layer when cells undergo death by apoptosis or cell necrosis and serves as a signal by which cell destined for death are recognized by phagocytes.
• C2 ceramide mediates cell apoptosis through the activation of the mitogen activating protein kinase (MAPK) and the stress activated kinase (JNK/SAPK).
• MAPK mitogen activating protein kinase
• JNK/SAPK stress activated kinase
• the Balb/c mice (originated in 1923, it is a popular strain and is used in many different research disciplines. Also classified as an inbred from the production of 20 or more successive brother-sister matings, the Balb/c mouse is albino and small in size) were immunized on Days 1, 15, and 29 with Ovalbumin (Ovalbumin is the main protein found in egg white, commonly used to stimulate an immunological reaction in test animals) in PBS (5 micrograms/injection). On day 50, spleens of the mice were harvested (3 weeks after last boost with Ovalbumin). Cells were cultured (2 ⁇ 10 5 /well in triplicate) and incubated with culture medium or test peptide—10 micrograms per ml—for 30 min.
• Ovalbumin is the main protein found in egg white, commonly used to stimulate an immunological reaction in test animals
• kits can be used to measure Interleukin-2 (IL-2), Interleukin-4 (IL-4), Interleukin-5 (IL-5), Interferon- ⁇ (IFN- ⁇ ), and Tumor Necrosis Factor- ⁇ (TNF- ⁇ ) protein levels in a single sample.
• the kit performance has been optimized for analysis of physiologically relevant concentrations ( ⁇ g/ml levels) of specific cytokine proteins in tissue culture supernatants and serum samples.
• PBMC Human Peripheral Blood Mononuclear Cells
• Endothelial cell migration is a prerequisite for the process of neo-vascularization or angiogenesis which is crucial for on-site recruitment of blood vessel formation.
• Primary Human endothelial cells (HUVEC) were seeded in insert chambers with 3 micrometer pore size of multi-transwell plate for 6 hours at 37° C. in Endothelial Cell Basal Medium (EBM) supplemented with 0.1% bovine serum albumin. Thereafter, designated concentration of test peptide—10 micrograms per ml—was added in duplicate wells. The endothelia were allowed to migrate for 22 hours at 37° C., then, migrated cells were fixed and stained with Hoechst 33342 dye.
• the endothelial tube formation assay is based on the ability of endothelial cells to form three-dimensional capillary-like tubular structures when cultured on a gel of basement membrane extract.
• the endothelial tube formation assay represents a powerful model for studying inhibition and induction of angiogenesis.
• Pre-labeled HUVEC with Calcein AM were seeded in a 96-well culture plate coated with extracellular metrix (Chemicon international Cat. ECM625) and treated with test peptide—10 micrograms per ml—in full growth medium. Positive control was vehicle only.
• the endothelial cells were allowed to form tubes for 20 hours and were then examined under an inverted fluorescent microscope.
• the milk substitute contains, by weight, approximately 15% skimmed milk solids, approximately 75% demineralized water, approximately 9% soya oil, approximately 0.02% of carrageenates, 0.2% lecithin, and approximately 0.2% of disodium hydrogenphosphate.
• the solubilizing aqueous medium comprises, by weight, approximately 75% of water, approximately 0.02% of carrageenate and approximately 0.2% of disodium hydrogenphosphate.
• the skimmed milk powder is then added to the solution for 10 min at 60° C. and dissolved in the liquid.
• soya oil and lecithin are added to the milk substitute composition at 60° C.
• the milk composition is allowed to stand 30 min at 55° C.
• the peptide of the invention is added in liquid or powder form in such a quantity that the milk composition obtained comprises an amount of 5-50 micrograms, preferably 10-40 micrograms per 100 ml of milk composition.
• peptide 2 could be added in similar or smaller amounts to the obtained composition.
• peptide 1.6 g of isopropanol 1.0 g of glycerol 1.6 g of polyoxyethylene-polyoxypropylene copolymer 12500 (Pluronic F127) 5.3 g of water are mixed for 10 minutes and then heated to 85° C. under continuous stirring for 15 minutes.
• the solution is cooled to room temperature under stirring. During the cooling phase the solution begins to gel at a temperature of about 45° C. to form a clear gel.
• the gel contains 5% of the peptide combination for medical use.
• peptide 2 could be added in an amount form 0.01 to 0.5 g.
• peptide 1.9 g of isopropanol 1.0 g of dimethylisosorbide 1.0 g of polyoxyethylene-polyoxypropylene copolymer 12500 (Pluronic F127) 5.6 g of water are stirred and heated at 50° C., until a clear solution has been formed. Then the composition is cooled to room temperature under stirring.
• the lotion contains 5% of peptide combination for medical use.
• peptide 2 could be added in an amount form 0.01 to 0.5 g.

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