WO2007000320A2 - Verfahren zur diagnose von rheumatischen erkrankungen - Google Patents
Verfahren zur diagnose von rheumatischen erkrankungen Download PDFInfo
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- WO2007000320A2 WO2007000320A2 PCT/EP2006/006205 EP2006006205W WO2007000320A2 WO 2007000320 A2 WO2007000320 A2 WO 2007000320A2 EP 2006006205 W EP2006006205 W EP 2006006205W WO 2007000320 A2 WO2007000320 A2 WO 2007000320A2
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- polypeptide
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- rheumatoid arthritis
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- C07K14/435—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
- C07K14/46—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from vertebrates
- C07K14/47—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from vertebrates from mammals
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P19/00—Drugs for skeletal disorders
- A61P19/02—Drugs for skeletal disorders for joint disorders, e.g. arthritis, arthrosis
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P29/00—Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID]
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P37/00—Drugs for immunological or allergic disorders
- A61P37/02—Immunomodulators
- A61P37/06—Immunosuppressants, e.g. drugs for graft rejection
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/53—Immunoassay; Biospecific binding assay; Materials therefor
- G01N33/564—Immunoassay; Biospecific binding assay; Materials therefor for pre-existing immune complex or autoimmune disease, i.e. systemic lupus erythematosus, rheumatoid arthritis, multiple sclerosis, rheumatoid factors or complement components C1-C9
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
Definitions
- the invention relates to polypeptides that react with rheumatoid-associated autoantibodies.
- the invention also relates to a diagnostic agent containing one of these polypeptides, a diagnostic kit containing said diagnostic agent, and a method for the in vitro detection of rheumatic diseases.
- the invention further relates to a medicament containing one of the polypeptides and to the use of the polypeptides for the production of a medicament for the prophylaxis and / or treatment of rheumatic diseases.
- Rheumatic diseases especially pain in the joints and musculoskeletal system are among the most common diseases in Germany.
- a laboratory test that makes it possible to associate this pain with a harmless muscle tension, osteoarthritis or the most common and severe of the diseases, rheumatoid arthritis (RA), is not yet known.
- RA rheumatoid arthritis
- Rheumatoid arthritis is an autoimmune disease in which the defense mechanisms of the human body mistakenly consider the body's own articular cartilage to be foreign and hostile and attack it. About 1 in 100 people in Western European countries suffer from rheumatoid arthritis. In the first months of the disease, this progresses very quickly.
- the diagnosis of rheumatoid arthritis is based on the classification criteria of the ACR (American College of Rheumatology). According to the criteria of the ACR, the rheumatoid factor is the hitherto fundamental serological indicator for the diagnosis of rheumatoid arthritis (RA).
- Rheumatoid factors are a subset of immunoglobulins characterized by the immunological cross-reaction against the Fc region of immunoglobulin G (IgG).
- rheumatoid factor is not limited to diseases of the rheumatic type (differential diagnostic indications), rheumatoid factors are also found in the serum of patients with infectious diseases, hyperglobulin anemias, lymphoproliferative B-cell diseases and generally in older populations.
- rheumatoid factors In general, increased levels of rheumatoid factors are associated with a more severe disease course. The concentrations do not correlate with the degree of activity and the therapeutic success. Based on the concentration of rheumatoid factors no sensitive and specific prognosis for the onset of rheumatoid arthritis can be made. Healthy people have an increased rheumatoid factor concentration without getting sick, while patients without rheumatoid factors have a very aggressive form of rheumatoid arthritis.
- serological markers such as the anti-citrulline antibody (CCP) or the initial HAQ score used to assess everyday abilities, or the X-ray or computed tomography (CT) biograph, are poor predictors of early disease alone not meaningful enough to to be able to judge what the prognosis of the patient will be.
- CCP anti-citrulline antibody
- CT computed tomography
- anti-keratin antibodies Vincent, CH et al, Natural IgG to Epidermal Cytokeratins vs. IgG to the Stratum Corneum of the Rat Esophagus Epithelium, so-called "Antikeratin Antibodies", in Rheumatoid Arthritis and other Rheumatic Diseases; J. of Autoimmunity 4 (1991), 493-505; Paimela, L. et al ., Antikeratin antibodies: diagnostic and prognostic markers for early rheumatoid arthritis, Ann. Rheumat. Dis., 51 (1992) 743- 746).
- AKA anti-keratin antibodies
- the basic protein filaggrin was identified as the target antigen.
- the 40 kDa protein aggregates cytokeratin filaments and helps to form the intracellular fiber matrix of the keratinized cells (Simon, M. et al., The Cytokeratin Filament-Aggregating Protein Filaggrin is the Target of the So-called "Anticancer Antibodies", Autoantibodies Specific for rheumatoid arthritis, J. Clin. Invest., 92 (1993), 1387-93).
- anti-filaggrin antibodies of the type IgG are a highly specific marker for rheumatoid arthritis.
- the antibodies are in principle detectable at an early stage and precede the clinical picture. In several studies positive correlations to the severity and activity of the disease could be found.
- Anti-filaggrin antibodies do not correlate with age, gender or disease duration. They can be detected in about 34% of rheumatoid factor-negative patients and are a valuable diagnostic aid.
- the antibodies can only be found in serum in about 40% of the cases.
- the object of the present invention was therefore to provide novel polypeptides for the detection of associated with rheumatic diseases, especially associated with rheumatoid arthritis, antibodies, the sensitive and specific diagnosis, classification and prognosis of rheumatic diseases, in particular pain in the joints and the musculoskeletal system.
- An object of the invention is therefore a polypeptide which is derived from native vimentin having the SEQ ID no. 1 and that differs from the native sequence by the presence of at least one additional arginine residue.
- the additional arginine residues are preferably inserted into the sequence by substitution of other amino acid residues of the native human vimentin.
- the polypeptide has at least one of the positions 16, 17, 19, 41, 58, 59, 60, 68, 76, 140, 142, 147, 363, 406 or 452 an arginine residue. Particularly preferred positions are 41, 58, 59, 60 and / or 68.
- the polypeptide has at least one, two, three or four positions of an additional arginine residue.
- the polypeptide additionally has an additional leucine residue in at least one of the positions 3, 20, 33, 36, 37, 94, 165, 361, 399 or 426 relative to the native sequence, preferably at positions 33, 36 and / or 37.
- the polypeptide has at least one, two, three or four positions of an additional leucine residue.
- the polypeptide is in at least one position, e.g. in one of the positions 21, 41, 43, 50, 54, 62, 64 or 89, an additional proline residue relative to the native sequence, preferably at the positions 41, 43, 50, 54, 62, and / or 64.
- the polypeptide has a proline residue in at least one, two, three or four positions.
- the polypeptide is in at least one position, e.g. in one of the positions 24, 35 or 99, compared to the native sequence an additional threonine residue.
- the polypeptide has a threonine residue in at least one, two or three positions.
- the polypeptide is in at least one position, e.g. in one of the positions 25, 39, 42, 49, 55 or 67, an additional tyrosine residue relative to the native sequence.
- the polypeptide has a tyrosine residue in at least one, two, three or four positions.
- At least one arginine residue is present in the polypeptide as citrulline residue, for example in at least one of the positions 4, 12, 23, 28, 36, 45, 50, 64, 71, 100, 320, 364 or 378
- the polypeptide has at least one, two, three or four of the positions of a citrulline residue.
- the polypeptide may also be a citrulline-free polypeptide.
- Preferred examples of human vimentin muteins have a sequence of SEQ ID NO. 2, 3, 4, 5, 6, 7, 8 or 9.
- Another object of the invention is a fragment of one of the o.g. Polypeptides derived from native vimentin having SEQ ID NO. 1 which contains at least one region containing at least one arginine residue and which exhibits reactivity against autoantibodies associated with rheumatoid diseases.
- the fragment is in the range of positions 10-145.
- the fragment is particularly preferably in the range of positions 30-70.
- a preferred example of a fragment is fragment 51-65 (C2).
- the length of the fragment is preferably at least 6, more preferably at least 8 amino acids up to 120, preferably up to 100, and most preferably up to 50 amino acids.
- the peptide derivative may be a retro / inverse polypeptide, i. an inverse polypeptide of the above-described polypeptides prepared according to a mirror image of the polypeptides of D-amino acids, a retro-polypeptide having a "reverse” sequence, and a retro-inverso polypeptide having a mirror image of the polypeptides described above and also has a "reverse" sequence.
- peptide derivatives are side group, amino or / and carboxy-terminal modified polypeptides of an amino group, e.g. Polypeptides, e.g. modified with a carboxylic acid or an alkyl group, or modified on a carboxylic acid group having an amino group or an ester group.
- the polypeptides and / or peptide derivatives may also be present as cyclic peptides.
- nucleic acid encoding a polypeptide described above.
- Suitable nucleic acids are, for example, DNA and RNA, in particular cDNA.
- the nucleic acids can be used for recombinant production of the polypeptides are cloned into conventional eukaryotic or prokaryotic vectors and expressed in suitable host cells.
- Another object of the invention is a diagnostic agent containing one or more of the above-described polypeptides or fragments thereof.
- the diagnostic agent may contain the polypeptide or fragment in free or carrier-bound form.
- polypeptides according to the invention prove to be highly specific and highly sensitive antigens for the diagnosis of antibodies in body fluids of patients with rheumatic diseases, in particular inflammatory diseases of the joints and musculoskeletal system, especially of rheumatoid arthritis
- Preferred body fluids in the context of the invention are blood, serum or plasma, particularly preferably serum.
- the diagnostic agent according to the invention has a number of advantages.
- the polypeptides contain multiple antibody binding sites, both monomeric and multimeric antibodies can be efficiently bound.
- Another advantage of the mutant polypeptide is that this
- Rheumatoid arthritis can identify.
- rheumatic diseases in particular rheumatoid arthritis
- a citrulline-free protein or peptide PJ Utz, Death, autoantigen modifications, and tolerance; , 2, (2000), 101-114.
- Another object of the invention is a diagnostic kit for use in the detection of rheumatic diseases, in particular of rheumatoid arthritis, containing a diagnostic agent described above.
- the diagnostic kit may contain conventional ingredients such as buffers, solvents and / or labeling groups.
- Carriers include macromolecules such as DNA, RNA, medically acceptable polymers such as polyethylene, poly DL-lactides, poly D, L-lactide co-glycolides, synthetic biopolymers such as polylysines and dextrans, and proteins such as serum albumin and Hemocyanin, in question. Dextranes are preferably used in a so-called “hydrocoating coating process" (Gregorius, K., Mouritsen, S. and Eisner, HI, Hydrocoating: A New Method for Coupling Biomolecules to Solid Phases, J. Immunol., Methods 12 (1995), 65-73).
- Another object of the invention is a method for the in vitro detection of rheumatic diseases, in particular rheumatoid arthritis, in which the concentration of autoantibodies in a body fluid is determined.
- the method allows the diagnosis to be made, the classification and / or the evaluation of the severity of the disease.
- the detection reagent used is the diagnostic agent described above or the diagnostic kit described above.
- a radioimmunoassay As preferred detection methods come in the inventive Method, a radioimmunoassay, a Chemolumineszenzimmunoassay, an immuno-blot assay or an enzyme immunoassay, eg an ELISA in question.
- the body fluid to be analyzed is added as sample to a polypeptide described above which is bound to a carrier. After incubation of the sample, the unbound components are washed away. The specific binding of the autoantibodies to be detected to the polypeptide is detected by a secondary antibody bearing a labeling group.
- secondary antibodies in the inventive method are suitable, for example, antibodies that are directed Fc portion of human IgG 1 against human antibodies such as IgG, IgM, IgA and / or IgE, such as the.
- labeling groups in the process of the invention for example, an enzyme such as peroxidase or alkaline phosphatase, a radioactive label or a luminescent label group, such as
- a competitive inhibition test can also be carried out with the polypeptides according to the invention, in which the binding of a labeled rheumatoid arthritis (RA) autoantibody is inhibited in the presence of a sample, provided that RA autoantibodies are also present in the sample.
- RA rheumatoid arthritis
- the peptides of the invention may also serve as an agent for prognosis and / or for the follow-up in the treatment of rheumatic diseases, in particular rheumatoid arthritis.
- prognostic agents peptides from the range of position 30- 65 and / or from position 55-70.
- Another object of the present invention was to provide drugs which selectively inhibit or prevent the formation of autoimmune complexes associated with rheumatic diseases, particularly inflammatory processes, most preferably in the inflamed joint, but which do not generally inhibit the production of antibodies.
- a pharmaceutical composition which contains a polypeptide or fragment described above and is suitable for applications in human or veterinary medicine.
- the drug may e.g. for extracorporeal treatment of body fluids, e.g. Blood or plasma, serve to trap the autoantibodies contained therein with solid-phase-bound antibodies and to return the treated body fluid back into the patient.
- the polypeptide of the invention is an antigen primarily associated with disease progression, or even the primary disease-initiating protein.
- polypeptides or their fragments may also be administered directly in the form of a pharmaceutical composition which may contain pharmaceutically acceptable carriers, solvents and / or adjuvants.
- the pharmaceutical composition may be administered in the form of a tablet, a capsule, a solution, a suspension, an aerosol, a spray (nose or throat spray), a gel, a patch, etc.
- the drug can be administered by any known method, with oral and intravenous administration being particularly preferred.
- the dose may vary depending on the nature and severity of the disease and is usually in the range of 1 to 2,000 mg / day, preferably in the range of 10 to 200 mg / day.
- RA patients may be treated by the identified short, synthetic proteinaceous epitopes of the above-described polypeptides (including C2 epitope) derived from the native vimentin amino acid sequence.
- mice after such treatment formed immune cells that successfully suppress the division of antigen-specific immune cells.
- a control of the course and the success of the therapy of rheumatic diseases, in particular rheumatoid arthritis is possible according to the current diagnostic methods only by the laborious and time-consuming method of the disease activity score (DAS).
- DAS disease activity score
- This method calculates the number of swollen joints, the number of painful joints, the inflammatory parameters (BSR or CRP) and the patient's condition on a visual analogue.
- polypeptides of the invention now make it possible to control the course and success of the therapy of rheumatoid diseases, in particular of rheumatoid arthritis.
- DAS score 4.9 mean Patients with severe rheumatoid arthritis (DAS score 4.9 mean) had an antibody titre of> 1,000 U / ml on average. Without the DAS score being significantly altered by treatment with Remicade and / or Methrotrexate, in 50% of patients the amount of antibodies to the polypeptides according to the invention was reduced by approximately 30-50%. Parallel to the altered antibody titer, patients were given a much more positive overall assessment of the subjective disease situation in the case history, i. E.
- the diagnostic agent according to the invention is also suitable for quality control of the therapy of severe rheumatoid arthritis.
- a significant advantage is that in a few minutes for the first time a qualitatively and quantitatively reliable information about the nature, the course and the Therapy of Rheumatoid Arthritis can be given.
- the polypeptides of the invention surprisingly allow the provision of a novel, previously unknown principle of action for the treatment of rheumatic diseases, in particular inflammation.
- the spectrum of action of the polypeptides of the invention is a different than the hitherto known inhibitor of inflammation, since selectively only antibody-dependent mediators can be formed reduced.
- Another advantage of the polypeptides of the invention is that the spectrum of side effects is likely to be significantly less than that of drugs known in the art, as no cross-reaction with antibodies from healthy blood donors could be observed.
- the above-described diagnostic agent and therapeutic agent according to the invention can therefore be used for the diagnosis, prophylaxis or treatment of all forms of manifestation based on vimentin-dependent processes.
- Another object of the present invention are the hypothetical proteins BF0786 and BF0713 of the paradontitis agents Bacteroides forsythus and Prevotella intermedia, which have been found to be initiators of rheumatic diseases, in particular a chronic inflammatory disease of the joints and musculoskeletal system.
- the protein BF0786 and its sequence has been described by Kuwahara, T. et al. (Kuwahara, T. et al., Proc Natl Acad., U.S.A. 101 (41), 14919-14924 (2004)).
- the protein BF0713 and its sequence has been described by Cerdeno-Tarraga, A.M. et al. (Cerdeno-Tarraga, A.M. et al., Science 307 (5714), 1463-1465 (2005)). Medical applications in the field of diagnostics and therapy have not been known so far.
- Another object of the present invention was to find substances that selectively block the formation of autoimmune complexes from rheumatoid-associated autoantibodies with autoantigens, particularly vimentin, i. only prevent the reaction of the antibodies involved in the pathogenesis, but which do not affect the antibody production and response in general and thus allow a sensitive and specific therapy or prophylaxis of rheumatism-associated diseases of pain in the joints and musculoskeletal system.
- EC epicatechin
- EGCG epigallocatechin gallate
- EGCG has only been known to have a) an antioxidant effect, b) intercept reactive intermediates in carcinogens, c) inhibit cinogen activating enzymes, and d) inhibit nitrosation and cell proliferation (especially of tumor cells).
- Another object of the invention is finally the use of a above-described peptide, a peptide fragment described above, a retro-inverso polypeptide described above or a cyclic peptide for finding blocking natural substances and / or chemical substances against antibody-driven inflammatory reactions.
- bioassays can be developed on the basis of the peptides according to the invention, with which natural product libraries, combinatorial libraries and chemical libraries can be analyzed for the presence of anti-inflammatory substances.
- substances from the above mixtures can be identified and purified which directly or indirectly block the antigen of the invention via blocking of the antibody.
- rheumatoid arthritis retardation and complete healing were observed for these substances.
- Figure 1 Comparison of the diagnostic specificity of the detection of RA autoantibodies with mutant vimentin (•) compared to citrullinated peptides (CCP) (A).
- Figure 2 Isolated CD4-positive T cells suppress the proliferative response of CD4-negative cells after peptide immunotherapy.
- Figure 3 Inhibition of the response of antibodies from RA sera by green tea extracts, mutant vimentin and combinations thereof.
- Figure 4 Selectivity of extracts of green tea in the Blocking of autoantibodies from RA patients.
- Figure 5 General presentation of an animal model of arthritis
- Example 1 Identification of mutated variants of human vimentin as RA-associated antigens
- a cell extract of U937 cells (human monocyte cell line) was prepared. Citrullinated proteins were removed from the cell extract by pre-absorption with a commercial anti-citrulline antibody. Subsequent affinity chromatography with chicken anti-vimentin antibody yielded an eluate from which vimentin variants could be isolated that cross-reacted with antibodies from patients with RA. The obtained vimentin variants were further characterized by reverse phase chromatography, proteolytic digestion and amino acid sequencing. As a result, the polypeptides described below with the amino acid sequences SEQ ID NO. 2-9 are identified.
- Example 2 Detection of RA-associated autoantibodies with a mutant vimentin as detection antigen
- a recombinant, mutated variant of native vimentin from Example 1 (SEQ ID No. 9) was expressed in E. coli and purified by affinity chromatography using the His tag.
- a 2 mg / ml solution of the purified protein was pretreated with unfolding buffer (50 mM Tris, 2 M guanidine hydrochloride, 5 mM CaCl 2 , 2 mM DTT, 0.5 mM EDTA, 5 mM methyl ammonium chloride, pH 7.4) and for diluted at 4 ° C. for at least 14 hours and then diluted 1: 1000 in PBS. 100 ⁇ l of this solution were added overnight at 4 ° C into the wells of a microtiter plate (Cochlear: COSTAR).
- Unbound polypeptide was removed by washing three times (175 ⁇ l, buffer PBS / 0.05% Tween). Potentially nonspecific cross-reactions were blocked by incubation of the wells with 150 ⁇ l of a 3% bovine serum albumin (BSA) solution in PBS. The blocked, deflated plate was dried at 37 0 C for 30 min and stored at 4 0 C with exclusion of moisture.
- BSA bovine serum albumin
- Microtiter plates prepared in this way were used for the quantitative detection of autoantibodies to mutant vimentin according to the principle of indirect enzyme immunoassay.
- detection of autoantibodies to CCP was performed.
- Sera samples from healthy volunteers and / or patients with different diseases were diluted 1: 100 with 1% BSA / PBS and incubated in the wells for 30 minutes. Repeated washing with PBS / 0.05% Tween removes unbound serum antibodies.
- Enzyme-labeled detection antibodies in particular peroxidase-conjugated anti-human IgG antibodies, dilution 1: 10000 were then incubated for 15 minutes.
- mutant vimentin-based diagnostic mutant different mutant polypeptide variants of native vimentin (see Example 1) were cloned and expressed in E. coli.
- Sera from a group of patients (approximately 100) with rheumatoid arthritis (RA) defined by the ACR criteria were used to identify the polypeptide variant that has the highest sensitivity for the detection of autoantibodies in RA.
- the expressed and purified proteins were coated in microtiter plates analogously to Example 2, and the cross-reaction of the autoantibodies in RA patients was analyzed in a classical ELISA assay.
- the mutated sequences obtained in a first screening procedure were combined in further approaches in order to achieve the maximum possible sensitivity.
- sera from 34 patients with other autoimmune diseases including SLE, Sjögren Syndrome, IDDM
- the final mutant polypeptide variants were coated in microtiter plates analogously to Example 2.
- Anti-vimentin antibodies were tested in the ELISA for their binding capacity to overlapping biotinylated, synthetic 17mer peptides of the mutant vimentin (see Example 2). The main question was whether the antibodies of patients with RA are directed against the same B-cell epitopes.
- the RA is very different and decisions the therapeutic approach are not final, but must be continuously monitored and adjusted if necessary. Therefore, 21 patients under RA drug therapy were analyzed for the response to the polypeptides of the invention.
- 21 patients under RA drug therapy were analyzed for the response to the polypeptides of the invention.
- the cross-reaction against overlapping, biotinylated, synthetic peptides of the mutant vimentin was characterized in the ELISA. It was found that, for example, in RA patients, who cross-reacted with a peptide in position 30-65 of the vimentin sequence, a rapid and effective therapy is observed, which partly came to a positive conclusion after 2 years with a complete cure. In contrast, in RA patients who cross-reacted with a peptide at position 55-70, no treatment success could be recorded from the patient documentation in any of the cases studied. Healthy patients did not cross react with any of the peptides analyzed.
- the polypeptides of the invention can serve as a diagnostic to control the course and success of the therapy of rheumatoid diseases, in particular rheumatoid arthritis. That is, a quantitative ELISA using the inventive peptides can subdivide patients into drug "responders” and “non-responders" at the beginning of therapy.
- TNF tumor necrosis factor
- these transgenic mice were either treated only with a physiological saline solution or injected with a solution of 1 ⁇ g of a peptide (50-65) of the mutant vimentin (analogous to Puga Yung et al., Epitope-specific immunotherapy induces immune deviation of proinflammatory T cells in rheumatoid arthritis, PNAS 2004 101: 4228-4233 and Zwerina et al., Single and combined inhibition of tumor necrosis factor, interleukin-1, and RANKL pathways in tumor necrosis factor-induced arthritis: effects of synovial inflammation, bone erosion , and cartilage destruction: Arthritis Rheum. 2004 Jan; 50 (1): 277-90).
- the joint swelling was measured and the articular mucosa, bone and cartilage damage examined histologically.
- the joint swelling was inhibited to 41% and the inflammation of the joint mucosa to 38%, the physiological saline solution showed no influence.
- the inflammation was almost completely dominated.
- mice after such treatment formed immune cells that successfully suppress the division of antigen-specific immune cells, which are intrahepatic T-cell populations with the phenotype CD4 + CD45RC n ⁇ g ( Figure 2).
- tea extract For the preparation of green tea extract, 5 g of any commercially available tea was overlaid with 10 ml of 80% DMSO and stirred overnight. The solution was centrifuged at 13,000 rpm for 10 min and defined as tea extract. In contrast to the above solids 1, 2 and 4-6, the tea extract of this preparation used 10 ⁇ l / ml.
- the antibody binding in the presence and absence of substances was analyzed by ELISA, for which microtiter plates were prepared analogously to Example 2. Differential sera from RA patients were used at dilutions of 1: 100 to 1: 400. The blocking of the antibody binding was induced by preincubating 100 ⁇ l of the diluted serum with the indicated substances or teas solutions for 10 min.
- Oral absorption of green tea catechins is very low when ingested so that minimal serum concentrations are expected to be reached during normal tea consumption (Zhu et al., Oral absorption and bioavailability of tea catechins, Planta Medica 66 (2000) 444-7; See also Schrader et al., Bioavailability of Various Tea Catechins in the Plasma Dependent on the Dosage Form Proc. Germ Nutr Soc., 3 (2001) 36).
- the tea extracts prepared by us were freeze-dried and reconstituted with cocoa oil or salmon oil.
- an extract prepared from 5 g green tea (5 g / kg body weight) was administered to rats, blood was withdrawn every half hour and analyzed by HPLC and GC / MS.
- a maximum plasma concentration of 75 ⁇ g / ml EC and EGCG (5-13% of the extract mass) and about 245 ⁇ g / ml for EGCG (containing 50% in the extract) could be measured approximately 2 hours after ingestion. Toxic effects did not occur in these animal experiments within the study period of 1 month.
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Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202006020682U DE202006020682U1 (de) | 2005-06-27 | 2006-06-27 | Mittel zur Diagnose von rheumatischen Erkrankungen |
EP06762214.2A EP1896497B1 (de) | 2005-06-27 | 2006-06-27 | Verfahren zur diagnose von rheumatischen erkrankungen |
CA2614103A CA2614103C (en) | 2005-06-27 | 2006-06-27 | Additional arginines in vimentin polypeptides for diagnosing rheumatic diseases |
US11/597,515 US8999921B2 (en) | 2005-06-27 | 2006-06-27 | Process for diagnosing rheumatic diseases |
JP2008518703A JP5174659B2 (ja) | 2005-06-27 | 2006-06-27 | リウマチ疾患の診断方法 |
AU2006263942A AU2006263942B9 (en) | 2005-06-27 | 2006-06-27 | Method for diagnosing rheumatic diseases |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE102005029845.1A DE102005029845B4 (de) | 2005-06-27 | 2005-06-27 | Verfahren zur Diagnose von rheumatischen Erkrankungen |
DE102005029845.1 | 2005-06-27 |
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WO2007000320A2 true WO2007000320A2 (de) | 2007-01-04 |
WO2007000320A3 WO2007000320A3 (de) | 2007-07-05 |
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EP (1) | EP1896497B1 (de) |
JP (2) | JP5174659B2 (de) |
CN (1) | CN101282989A (de) |
AU (1) | AU2006263942B9 (de) |
CA (1) | CA2614103C (de) |
DE (2) | DE102005029845B4 (de) |
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Cited By (6)
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WO2010072804A1 (en) | 2008-12-23 | 2010-07-01 | Charite - Universitätsmedizin Berlin | Hnrnp a3 related peptides and use thereof for diagnosis of rheumatoid arthritis |
JP2010530972A (ja) * | 2007-06-20 | 2010-09-16 | シェーリング コーポレイション | 炎症性関節疾患に対する抗il−17a治療のための関節破壊のバイオマーカー |
WO2010117694A3 (en) * | 2009-03-30 | 2011-01-20 | Prometheus Laboratories Inc. | Citrullinated peptides for diagnosing and prognosing rheumatoid arthritis |
WO2014023957A2 (en) * | 2012-08-07 | 2014-02-13 | Scancell Limited | Anti-tumour response to modified self-epitopes |
US8999921B2 (en) | 2005-06-27 | 2015-04-07 | Cypress Bioscience, Inc. | Process for diagnosing rheumatic diseases |
US10695438B2 (en) | 2015-07-20 | 2020-06-30 | Scancell Limited | Anti-tumour immune responses to modified self-epitopes |
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CN102229652B (zh) * | 2009-10-23 | 2012-05-23 | 山东省医药生物技术研究中心 | 抗类风湿性关节炎的多肽及其在制药中的应用 |
US10011883B2 (en) | 2011-10-14 | 2018-07-03 | New York University | Causative agents and diagnostic methods relating to rheumatoid arthritis |
WO2013151314A1 (ko) * | 2012-04-03 | 2013-10-10 | 연세대학교 산학협력단 | 비멘틴을 포함하는 탈모 억제 또는 발모 촉진용 조성물 |
WO2016199964A1 (ko) * | 2015-06-10 | 2016-12-15 | 주식회사 이뮨메드 | 분리된 비멘틴 유래 펩타이드에 특이적으로 결합하는 항체 또는 상기 펩타이드의 결합 단편 |
CN106950365B (zh) * | 2017-02-15 | 2018-11-27 | 中国医学科学院北京协和医院 | 一种acpa阴性的ra诊断标志物及其应用 |
WO2022108309A1 (ko) * | 2020-11-18 | 2022-05-27 | 한양대학교 에리카산학협력단 | 인산화된 비멘틴의 과도한 생성을 차단하여 암을 예방 또는 치료하는 방법 |
KR102511660B1 (ko) * | 2020-11-18 | 2023-03-20 | 한양대학교 에리카산학협력단 | 비멘틴 돌연변이체 또는 이를 발현하는 벡터를 유효성분으로 포함하는 암 예방 또는 치료용 약학적 조성물 |
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SE9900473D0 (sv) * | 1999-02-12 | 1999-02-12 | Karolinska Innovations Ab | Inhibitor of endothelial cell proliferation |
EP1207862A2 (de) * | 1999-06-07 | 2002-05-29 | The University Of Sheffield | Arthritisbehandlung |
CA2518187A1 (en) | 2003-03-07 | 2004-09-16 | London Health Sciences Centre Reseach, Inc. | Peptides associated with hla-dr mhc class ii molecules involved in autoimmune diseases |
JPWO2006006205A1 (ja) | 2004-07-08 | 2008-04-24 | 三菱電機株式会社 | エレベーターの制御装置 |
DE102005029845B4 (de) | 2005-06-27 | 2017-03-23 | Orgentec Diagnostika Gmbh | Verfahren zur Diagnose von rheumatischen Erkrankungen |
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JP2010530972A (ja) * | 2007-06-20 | 2010-09-16 | シェーリング コーポレイション | 炎症性関節疾患に対する抗il−17a治療のための関節破壊のバイオマーカー |
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EP2204380A1 (de) | 2008-12-23 | 2010-07-07 | Charité-Universitätsmedizin Berlin | hnRNP-A3-verwandte Peptide und deren Verwendung zur Diagnose von rheumatoider Arthritis |
WO2010072804A1 (en) | 2008-12-23 | 2010-07-01 | Charite - Universitätsmedizin Berlin | Hnrnp a3 related peptides and use thereof for diagnosis of rheumatoid arthritis |
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EP3287787A1 (de) * | 2012-08-07 | 2018-02-28 | Scancell Limited | Antitumorantwort auf modifizierte selbstepitope |
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KR102203096B1 (ko) * | 2012-08-07 | 2021-01-14 | 스캔셀 리미티드 | 개질된 자가 항원결정기에 대한 항종양 반응 |
US10695438B2 (en) | 2015-07-20 | 2020-06-30 | Scancell Limited | Anti-tumour immune responses to modified self-epitopes |
US11382985B2 (en) | 2015-07-20 | 2022-07-12 | Scancell Limited | Anti-tumour immune responses to modified self-epitopes |
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DE102005029845A1 (de) | 2007-01-11 |
EP1896497A2 (de) | 2008-03-12 |
DE202006020682U1 (de) | 2009-07-23 |
US8999921B2 (en) | 2015-04-07 |
JP2013032358A (ja) | 2013-02-14 |
CA2614103A1 (en) | 2007-01-04 |
JP5174659B2 (ja) | 2013-04-03 |
AU2006263942B9 (en) | 2012-08-02 |
WO2007000320A3 (de) | 2007-07-05 |
AU2006263942B2 (en) | 2012-03-29 |
CA2614103C (en) | 2015-02-24 |
EP1896497B1 (de) | 2017-07-12 |
DE102005029845B4 (de) | 2017-03-23 |
US20090155822A1 (en) | 2009-06-18 |
AU2006263942A1 (en) | 2007-01-04 |
JP2008543961A (ja) | 2008-12-04 |
CN101282989A (zh) | 2008-10-08 |
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