EP4264262A2 - Verfahren zur identifizierung und/oder zum erhalten eines wirkstoffs zur behandlung und therapie der familiären amyotrophen lateralsklerose sowie verwendung eines wirkstoffs zur behandlung dieser erkrankung - Google Patents
Verfahren zur identifizierung und/oder zum erhalten eines wirkstoffs zur behandlung und therapie der familiären amyotrophen lateralsklerose sowie verwendung eines wirkstoffs zur behandlung dieser erkrankungInfo
- Publication number
- EP4264262A2 EP4264262A2 EP21819718.4A EP21819718A EP4264262A2 EP 4264262 A2 EP4264262 A2 EP 4264262A2 EP 21819718 A EP21819718 A EP 21819718A EP 4264262 A2 EP4264262 A2 EP 4264262A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- aggregates
- cells
- uptake
- compounds
- sod1
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- 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
- G01N33/5005—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving human or animal cells
- G01N33/5008—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving human or animal cells for testing or evaluating the effect of chemical or biological compounds, e.g. drugs, cosmetics
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/70—Carbohydrates; Sugars; Derivatives thereof
- A61K31/715—Polysaccharides, i.e. having more than five saccharide radicals attached to each other by glycosidic linkages; Derivatives thereof, e.g. ethers, esters
- A61K31/726—Glycosaminoglycans, i.e. mucopolysaccharides
- A61K31/727—Heparin; Heparan
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/70—Carbohydrates; Sugars; Derivatives thereof
- A61K31/715—Polysaccharides, i.e. having more than five saccharide radicals attached to each other by glycosidic linkages; Derivatives thereof, e.g. ethers, esters
- A61K31/737—Sulfated polysaccharides, e.g. chondroitin sulfate, dermatan sulfate
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P25/00—Drugs for disorders of the nervous system
- A61P25/28—Drugs for disorders of the nervous system for treating neurodegenerative disorders of the central nervous system, e.g. nootropic agents, cognition enhancers, drugs for treating Alzheimer's disease or other forms of dementia
-
- 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
- G01N33/5005—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving human or animal cells
- G01N33/5008—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving human or animal cells for testing or evaluating the effect of chemical or biological compounds, e.g. drugs, cosmetics
- G01N33/502—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving human or animal cells for testing or evaluating the effect of chemical or biological compounds, e.g. drugs, cosmetics for testing non-proliferative effects
- G01N33/5038—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving human or animal cells for testing or evaluating the effect of chemical or biological compounds, e.g. drugs, cosmetics for testing non-proliferative effects involving detection of metabolites per se
-
- 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
- G01N33/5005—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving human or animal cells
- G01N33/5008—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving human or animal cells for testing or evaluating the effect of chemical or biological compounds, e.g. drugs, cosmetics
- G01N33/5044—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving human or animal cells for testing or evaluating the effect of chemical or biological compounds, e.g. drugs, cosmetics involving specific cell types
- G01N33/5058—Neurological cells
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2800/00—Detection or diagnosis of diseases
- G01N2800/28—Neurological disorders
Definitions
- the present invention relates to methods and a kit for identifying and/or obtaining an active substance for the alleviation, treatment and therapy of familial amyotrophic lateral sclerosis (ALS), in particular with mutations in SOD1.
- the invention further relates to the use of an active substance for the treatment of ALS, in particular with mutations in SOD1.
- Amyotrophic lateral sclerosis is a progressive and fatal neurodegenerative disease associated with loss of motor neurons. This leads to symptoms that include general muscle weakness that causes difficulty with movement, breathing, eating, and speaking. It affects about 5 in 100,000 individuals and 80% of those affected die within 2-5 years of initial diagnosis. About 20% of all ALS cases are due to gene mutations and about 10% of them to mutations in the gene for superoxide dismutase 1 (SOD1). In ALS patients with mutations in SOD1, neuronal deposits of mutant and misfolded SOD1 protein are found in motor neurons. Deposits of oligomers and aggregated SOD1 proteins are toxic to motor neurons and lead to their death.
- SOD1 superoxide dismutase 1
- the progressive spread of paralysis in the body is associated with a prion-like proliferation and spread of toxic SOD1 oligomers and aggregates in the body, in which misfolded oligomers/aggregates of mutant SOD1 protein are transferred from one neuron to the next and misfolded in the recipient cell and subsequently induce aggregation of native mutant SOD1, reproducing larger amounts of toxic SOD1 species. How toxic SOD1 aggregates are transmitted between neurons is not fully understood.
- ALS There is no cure for ALS yet, but there are treatments to help manage the disease. There are also drugs to relieve specific disease symptoms and a number of experimental treatments in development.
- the US Food and Drug Administration (FDA) has approved four treatments specifically aimed at slowing the progression of ALS: Rilutek (riluzole tablet), Tiglutik (riluzole suspension), Exservan (riluzole oral film), and radi - cava (Edaravone). Canada, Australia and Europe have also approved Rilutek, and in the UK Tiglutik has been approved under the Teglutik name. exservan and radio cava are still being tested in many countries. Edaravone is approved as a drug for the treatment of ALS in Japan, China, the USA and Switzerland.
- ALSFRS-R ALS Functional Rating Scale-Revised
- the drugs approved for treatment have no known mechanism of action and result in very little, if any, improvement in quality of life or prolongation of life.
- the object of the invention is to provide a method and a kit with which active substances for alleviating or treating amyotrophic lateral sclerosis, hereinafter referred to as ALS, can be identified.
- active substances for alleviating or treating amyotrophic lateral sclerosis hereinafter referred to as ALS
- the use of an active substance for the treatment of ALS is also an object of the invention.
- the objects of the invention are achieved by methods having the features of the main claim and the independent claims.
- the subject of the invention is a method for identifying and/or obtaining active substances for the alleviation or treatment of ALS, which in particular have the effect of arresting the spread of toxic SOD-1 aggregates between neurons in organisms, in particular in the human body, and thus to inhibit progressive paralysis in the body of ALS patients with mutations in SOD1.
- syndecan-3 and syndecan-1 which belong to the heparan sulfate proteoglycans (HSPG) expressed on the cell surface of neurons, superoxide dismutase 1 aggregates, hereinafter referred to as SOD1 aggregates, bind and mediate their uptake into neurons. This uptake causes and accelerates the previously described spread of toxic SOD1 aggregates between neurons in organisms.
- HSPG heparan sulfate proteoglycans
- the method according to the invention is characterized in that these aforementioned cell surface receptors to which these toxic SOD1 aggregates bind, in particular syndecan-3 and/or syndecan-1, are used as targets for identifying and/or obtaining active substances for the treatment of ALS are to be, with these active substances being examined in particular for their ability to inhibit binding of SOD1 aggregates to syndecan-3 and/or syndecan-1 and the uptake of these SOD-1 aggregates in neurons and thus the alleviation and treatment of ALS to allow.
- the method according to the invention for identifying and/or obtaining active substances for the alleviation or treatment of ALS comprises the following steps: a. Providing a composition containing cells with the cell surface receptors syndecan-3 and/or syndecan-1 b. Contacting the composition from step a) with SOD-1 aggregates c. Contacting the composition from step a) with the test substance to be screened, where step c) and step b) can take place simultaneously or step c) can take place before step b) d. Determination of the uptake of the SOD1 aggregates into the cells.
- an additional method step e) is carried out after step d), in which a comparison of the results of the uptake of the SOD1 aggregates in the cells with a reference value, without addition of the test substance, synonymously referred to as active ingredient, after step b) is carried out.
- this advantageously enables a check to be made as to whether the method approach works in principle and whether the cells are basically able to take up the SOD-1 aggregates into the cells without adding the test substance.
- neurons, neuronal cell lines or also other cells/cell lines which have been modified in such a way that they express the cell surface receptors syndecan-3 and/or syndecan-1 can be used as cells.
- SOD-1 aggregates that are known to trigger ALS in humans or in animal models can be used as SOD-1 aggregates. Both can do this Wild-type SOD-1 aggregates as well as mutated SOD-1 aggregates known to cause ALS. SOD-1 aggregates with the familial A4V or G93A mutation have also proven advantageous.
- SOD-1 aggregates should be used which are able to emit a specific signal, which not only serves as evidence for the binding of the SOD-1 aggregates to the syndecanes, but also as evidence for the determination of the uptake of the SOD -1 aggregates can be used in the cells.
- fluorescence signals have proven to be suitable here, which can detect the uptake of the SOD-1 aggregates in the cells by means of optical detection methods, preferably flow cytometry or microscopic methods.
- the SOD-1 aggregates are preferably labeled with a fluorescent dye suitable for detection, such as DyLight488 or other fluorescent dyes known to those skilled in the art and suitable for the application.
- all methods known to the person skilled in the art for detecting protein uptake and for quantifying these proteins in cells are suitable for determining the uptake of the SOD1 aggregates in the cells.
- immunoassays preferably ELISA or RIA
- spectroscopic methods such as mass spectrometry, mass spectroscopy, NMR, flow cytometry, microfluidic flow cytometry, combinations of the aforementioned methods or any microscopic detection methods can be mentioned.
- the subject matter of the invention is also a kit or a composition for carrying out the method according to the invention containing at least the cells detailed above with the cell surface receptors syndecan-3 and/or syndecan-1 and SOD-1 aggregates, which were also described in detail above.
- Another subject of the invention is the use of an active ingredient for the treatment of ALS, which inhibits the binding of SOD1 aggregates to the cell surface receptors syndecan-1 and syndecan-3 and thus stop the spread of toxic SOD1 aggregates between neurons in the body and thus a progressive Paralysis in the body of ALS patients with mutations in SOD1.
- the compound pentosan polysulfate sodium (PPS) and compounds from the group of heparins or herparin-like compounds, such as heparin (natural), certoparin, dalteparin, enoxaparin, nadroparin, reviparin, tinzaparin, have proven effective for the use of an active ingredient in the treatment of ALS , danaproid, deligoparin, fucoidan, proved to be suitable.
- PPS has hitherto been used as a drug for the treatment of interstitial cystitis, thrombosis and osteoarthritis. Another use in veterinary medicine is the treatment of osteoarthritis in dogs and horses.
- pentosan polysulphate sodium (PPS) or compounds from the group of heparins or herparin-like compounds can therefore also be used in the production of an inhibitor for the uptake of SOD1 aggregates in cells of an organism.
- PPS pentosan polysulfate sodium
- medicaments containing pentosan polysulphate sodium (PPS) or compounds from the group of heparins or herparin-like compounds and a pharmaceutically acceptable carrier are the subject matter of the invention. All excipients known from the prior art are suitable here.
- the invention also relates to the use of pentosan polysulphate sodium (PPS) or compounds from the group of heparins or herparin-like compounds in the manufacture of a medicament for the treatment of ALS.
- PPS pentosan polysulphate sodium
- PPS pentosan polysulfate sodium
- compounds from the group of heparins or herparin-like compounds which comprises a pharmaceutically acceptable diluent and a therapeutically effective amount of this substance or these compounds.
- the invention also relates to the use of pentosan polysulphate sodium (PPS) or compounds from the group of heparins or herparin-like compounds in the production of an inhibitor for the uptake of SOD1 aggregates in cells of an organism.
- PPS pentosan polysulphate sodium
- the invention also relates to methods for inhibiting the uptake of SOD-1 aggregates in neurons of an organism in which pentosan polysulfate sodium (PPS) or compounds from the group of heparins or herparin-like compounds or pharmaceutical formulations of these substances or compounds are used.
- PPS pentosan polysulfate sodium
- an organism pentosan polysulfate sodium (PPS) or Compounds from the group of heparins or herparin-like compounds or pharmaceutical formulation of these or the drug administered.
- the administration preferably takes place in a therapeutically effective amount to the organism.
- the organism here is a human or animal model.
- the aforementioned compounds can be administered to the organism, for example, orally, intravenously or by inhalation.
- compositions for the treatment and therapy of ALS containing at least the compound pentosan polysulphate sodium (PPS) or compounds from the group of heparins or herparin-like compounds also forms an object of the invention.
- PPS pentosan polysulphate sodium
- FIG. 1 Polyacrylamide gel electrophoresis of non-aggregated and aggregated wild
- FIG. 2 Flow cytometric determination of the uptake of aggregated and non-aggregated SOD1 by wild-type (FIG. 2a), A4V mutant type (FIG. 2B) and G93A mutant type (FIG. 2C) Neuro2A cells as a function of the incubation time
- FIG. 2D Recording of a confocal fluorescence microscopy of Neuro2a cells after 24 hours of incubation with wild-type SOD1 aggregates
- FIG. 3 Flow cytometric determination of the uptake of fluorescently labeled SOD-1 aggregates in Neuro2a cells under the influence of various endocytosis inhibitors
- FIG. 4 Flow cytometric determination of the uptake of SOD-1 aggregates in neuro2a cells of the wild type, A4V mutant type and G93A mutant type after incubation with sodium chlorate, heparin, heparinase I and III and chondroitinase
- Figure 6A Flow cytometric determination of the uptake of SOD-1 aggregates in Neuro2a cells with and without treatment with phosphoinositide phospholipase C
- Figure 6B Expression of the prion protein with and without treatment with phosphoinositide phospholipase C (PI-PLC)
- FIG. 6C Flow cytometric determination of the uptake of aggregated and non-aggregated SOD1 by wild-type Neuro2A cells and by Neuro2A cells without expression of Sdc1 and/or Sdc3
- FIG. 7A Flow cytometric determination of the uptake of fluorescently labeled SOD-1 aggregates in primary cortical neurons of wild-type mice after incubation with heparin, heparinase I and III and chondroitinase
- FIG. 7B Flow cytometric determination of the uptake of fluorescently labeled SOD-1 aggregates in primary cortical neurons of Sdc1 knockout mice (Sdc1 _/ ) compared to wild-type mice
- FIG. 7C Flow cytometric determination of the uptake of fluorescently labeled SOD-1 aggregates in primary cortical neurons of Sdc3 knockout mice ( Sdc3′A ) compared to wild-type mice
- FIG. 7D Flow cytometric determination of the uptake of fluorescently labeled SOD-1 aggregates in primary cortical neurons of wild-type mice, Sdc1 knockout mice (Sdc1' z ') and Sdc3 knockout mice (Sdc3 /_ ) over a period of 6 hours
- expressed and purified recombinant wild-type (wt) SOD1 and mutated human SOD1 aggregates with the familial A4V or G93A mutation from E. coli were used.
- SOD1 aggregate variants All three SOD1 aggregate variants (wt SOD1, A4V SOD1, G93A SOD1) were fluorescently labeled with DyLight 488.
- SOD1 aggregates were prepared by treatment with trifluoroethanol. All three non-aggregated and aggregated SOD1 variants were analyzed by polyacrylamide gel electrophoresis under denaturing conditions (FIG. 1A), followed by immunoblotting with an antibody against human SOD1. The result These showed that the monomeric S0D1 was approximately 16 kDa and had naturally formed dimers of approximately 32 kDa. Fluorescent labeling of SOD1 with DyLight 488 stabilized the dimeric form of all three SOD1 variants under these electrophoretic conditions.
- fluorescently labeled SOD1 formed high molecular weight species which could be detected as a continuous smear (in Figures 1A and 1B the gel band area marked with * within the square brackets) with lower electrophoretic mobility.
- Immunoblotting of gels performed under non-denaturing conditions with the same human SOD1 antibody confirmed that aggregation of SOD1 had resulted in high molecular weight species that exhibited lower electrophoretic mobility than non-aggregated SOD1 (Fig. 1B).
- Chlorpromazine inhibits clathrin-mediated endocytosis by preventing the assembly of clathrin lattices on the cell surface.
- Genistein is an inhibitor of protein tyrosine kinases and is used to inhibit caveola-mediated endocytosis.
- chlorpromazine nor genistein treatment significantly inhibited SPD 1 aggregate uptake, suggesting that uptake was not caveolin-dependent or clathrin-mediated.
- EIPA EIPA
- wortmannin an inhibitor of Na+/H+ exchangers
- IPA-3 an inhibitor of phosphoinositide-3-kinase
- PAK1 p21-activated kinase 1
- Dynasor was originally identified as an inhibitor of dynamin, a GTPase protein essential for membrane cleavage during clathrin-mediated endocytosis in eukaryotic cells.
- Dynasore also reduces labile cholesterol in the plasma membrane and disrupts lipid raft formation and membrane cleavage in a dynamin-independent manner, resulting in inhibition of macropinocytosis.
- chlorpromazine in contrast to MßCD, did not inhibit SPD1 aggregate uptake, our results provide further evidence for SPD1 aggregate uptake by macropinocytosis.
- the "***” or “****” above the bars indicate the statistical significance of the results. "***” corresponds to a significance with p ⁇ 0.001 and "****" corresponds to a significance with p ⁇ 0.0001 compared to the control.
- HSP Heparan sulfate proteoglycans
- Cell access via macropinocytosis can be mediated by binding of specific viruses, bacteria, or protein aggregates, including aggregated tau species, amyloid-beta, a-synuclein and infectious prion proteins induced on HSPG bound to the cell membrane.
- virus, bacteria, or protein aggregates including aggregated tau species, amyloid-beta, a-synuclein and infectious prion proteins induced on HSPG bound to the cell membrane.
- wild-type Neuro2a cells were treated for 48 hours with sodium chlorate, which abolishes the proper sulfation of HSPG, before the cells were incubated for 12 hours with SOD1 aggregates and their Uptake was measured by flow cytometry. Treatment with increasing sodium chlorate concentrations reduced the uptake of SOD1 aggregates in a dose-dependent manner (FIG. 4A).
- heparin a naturally occurring glycosaminoglycan structurally related to heparan sulfate, was used to competitively inhibit the binding of SOD1 aggregates to HSPG.
- the SOD1 aggregates were treated with 1 mg/mL heparin at 4° C. for 6 hours.
- the Neuro2a cells were then incubated with these pretreated SOD1 aggregates for 6 hours.
- the results show that heparin inhibited the uptake of both wild-type and mutated SOD1 aggregates by Neuro2a cells (Fig. 4B), a process that was dose-dependent (data not shown).
- PPS Pentosan polysulfate sodium
- PPS is among the most potent drugs used in experimental models of prion disease. PPS is known to prolong the survival of infected animals in a dose-dependent manner after intracerebroventricular perfusion. PPS is also used for the experimental treatment of human prion diseases as part of clinical studies. PPS acts in competition with endogenous HSPG on the cell surface as a co-receptor for infectious prions. The treatment of Neuro2a cells with increasing PPS concentrations competitively inhibited the cellular uptake of fluorescently labeled wild-type and mutant SOD1 aggregates at non-cytotoxic concentrations (FIG. 5).
- Glypicans 1-6 are a family of HSPGs attached to the outer cell membrane via a GPI anchor.
- PI-PLC phosphoinositide phospholipase C
- Treatment of Neuro2a cells with phosphoinositide phospholipase C did not decrease the uptake of SOD1 aggregates into Neuro2a cells as demonstrated by flow cytometry ( Figure 6A).
- prion protein another GPI-anchored protein
- Fig. 6B The expression of prion protein, another GPI-anchored protein, was reduced by over 90% after PI-PLC treatment (Fig. 6B), showing that PI-PLC treatment was effective in releasing GPI-anchored proteins.
- Syndycans 1-4 represent a family of transmembrane HSPG. Since syndecan-3 (Sdc3) and syndecan-1 (Sdc1) share a very high sequence homology and are expressed in neurons, we used CRISPR/Cas9 to target Neuro2a cells generate which have no expression of Sdc3 or of Sdc1 or no expression of Sdc1 and Sdc3. As previously shown for wild-type Neuro2a cells (Fig. 2), the uptake of aggregated SOD1 was higher than that of non-aggregated SOD1, not only in wild-type cells but also in cells expressing the expression of Sdc3 or was absent from Sdc1 and Sdc3 (Fig. 6C).
- Syndecan-1 and syndecan-3 mediated uptake of SPD 1 aggregates into primary neurons To investigate whether the findings in Neuro2a cells can be extended to primary cortical neurons, isolated, cultured, and treated primary cortical neurons from wild-type mice were treated with heparinase and chondroitinase, as previously done for Neuro2a cells, before treating them with DyLight 488-labeled SOD1 aggregates (Fig. 7A). Likewise, the uptake of SOD1 aggregates after blocking with heparin was tested, as previously carried out for Neuro2a cells (FIG. 7A). The uptake of SOD1 aggregates was in turn quantified by flow cytometry.
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Chemical & Material Sciences (AREA)
- Immunology (AREA)
- Molecular Biology (AREA)
- Medicinal Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Urology & Nephrology (AREA)
- Hematology (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Cell Biology (AREA)
- Neurosurgery (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Pharmacology & Pharmacy (AREA)
- Neurology (AREA)
- Tropical Medicine & Parasitology (AREA)
- Biotechnology (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Pathology (AREA)
- Analytical Chemistry (AREA)
- Food Science & Technology (AREA)
- Toxicology (AREA)
- Microbiology (AREA)
- Dermatology (AREA)
- Epidemiology (AREA)
- Hospice & Palliative Care (AREA)
- Psychiatry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Organic Chemistry (AREA)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Investigating Or Analysing Biological Materials (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102020007691.2A DE102020007691A1 (de) | 2020-12-16 | 2020-12-16 | Verfahren zur Identifizierung und/oder zum Erhalten eines Wirkstoffs zur Behandlung und Therapie der familiären amyotrophen Lateralsklerose sowie Verwendung eines Wirkstoffs zur Behandlung dieser Erkrankung |
| PCT/DE2021/000183 WO2022127956A2 (de) | 2020-12-16 | 2021-11-05 | Verfahren zur identifizierung und/oder zum erhalten eines wirkstoffs zur behandlung und therapie der familiären amyotrophen lateralsklerose sowie verwendung eines wirkstoffs zur behandlung dieser erkrankung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4264262A2 true EP4264262A2 (de) | 2023-10-25 |
Family
ID=78821862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21819718.4A Withdrawn EP4264262A2 (de) | 2020-12-16 | 2021-11-05 | Verfahren zur identifizierung und/oder zum erhalten eines wirkstoffs zur behandlung und therapie der familiären amyotrophen lateralsklerose sowie verwendung eines wirkstoffs zur behandlung dieser erkrankung |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20240033282A1 (de) |
| EP (1) | EP4264262A2 (de) |
| DE (1) | DE102020007691A1 (de) |
| WO (1) | WO2022127956A2 (de) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005017799A1 (de) | 2005-04-18 | 2006-10-19 | Abbott Gmbh & Co. Kg | Verwendung von Heparin und Heparinderivaten zur Modulation des Neuritenwachstum-kontrollierenden Nogo-Rezeptors |
| WO2008127974A1 (en) * | 2007-04-13 | 2008-10-23 | The Trustees Of Columbia University In The City Of New York | Stem cell-based culture system for drug development |
| AU2011343161B2 (en) * | 2010-12-17 | 2017-02-02 | Neurimmune Holding Ag | Human anti-SOD1 antibodies |
| JP2017512757A (ja) * | 2014-02-24 | 2017-05-25 | ウリゲン ファーマシューティカルズ、インコーポレイテッド | 経口投与するためのペントサンポリ硫酸塩の組成物および使用の方法 |
| SG11201805170XA (en) | 2015-12-18 | 2018-07-30 | Tega Therapeutics Inc | Cellular glycosaminoglycan compositions and methods of making and using |
-
2020
- 2020-12-16 DE DE102020007691.2A patent/DE102020007691A1/de not_active Withdrawn
-
2021
- 2021-11-05 WO PCT/DE2021/000183 patent/WO2022127956A2/de not_active Ceased
- 2021-11-05 EP EP21819718.4A patent/EP4264262A2/de not_active Withdrawn
- 2021-11-05 US US18/256,926 patent/US20240033282A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE102020007691A1 (de) | 2022-06-23 |
| WO2022127956A3 (de) | 2022-08-11 |
| US20240033282A1 (en) | 2024-02-01 |
| WO2022127956A2 (de) | 2022-06-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE69815122T2 (de) | Saccharid-enthaltende zubereitungen zur behandlung von alzheimerschen erkrankung und von weiteren amyloidosen | |
| DE69224080T2 (de) | Verwendung von nsaid zur behandlung von demenz | |
| DE69731386T2 (de) | Verfahren zur behandlung von asthma mit o-desulfatisiertem heparin | |
| DE69731610T2 (de) | Orale verabreichung wirksamer mengen von hyaluronsäure | |
| Khatib et al. | Protecting retinal ganglion cells | |
| DE69715862T2 (de) | Verwendung eines k-252a derivats zur behandlung von periphärer oder zentraler nervenerkrankungen und übermässiger cytokinbildung | |
| DE69935720T2 (de) | Diamino-propanol-verbindungen zur behandlung von ischaemien | |
| DE602004006895T2 (de) | Verfahren zur behandlung von multipler sklerose | |
| Wang et al. | Chondroitin sulfate E alleviates β-amyloid toxicity in transgenic Caenorhabditis elegans by inhibiting its aggregation | |
| DE60018061T2 (de) | Verwendung von glykosaminoglykane zur behandlung seniler demenz | |
| EP1531826B1 (de) | Antidepressiva zur prophylaxe und therapie von zystischer fibrose | |
| EP3747454B1 (de) | Amyloid-beta-bindende peptide und diese peptide zur verwendung für die therapie und die diagnose der alzheimerschen demenz | |
| EP3797787B1 (de) | Zyklische, amyloid-beta-bindende peptide und deren verwendung | |
| EP1283047B1 (de) | Methode zur herstellung einer bioaktiven substanz aus blutserum | |
| Ohta | Ultrastructure of sural nerve in a case of arsenical neuropathy | |
| EP4264262A2 (de) | Verfahren zur identifizierung und/oder zum erhalten eines wirkstoffs zur behandlung und therapie der familiären amyotrophen lateralsklerose sowie verwendung eines wirkstoffs zur behandlung dieser erkrankung | |
| CN101238370A (zh) | 通过检测脑毒素诊断和监控神经系统疾病的方法 | |
| Abd Ghapor et al. | Neuroprotection by trans-resveratrol in rats with N-methyl-D-aspartate (NMDA)–induced retinal injury: insights into the role of adenosine A1 receptors | |
| DE69331633T2 (de) | Arzneimittel zur hemmung der neutrophilen elastase und cathepsin g | |
| Dhivya et al. | Alleviation of polycystic ovarian syndrome by hydroalcoholic leaf extract of Aegle marmelos (L). Correa in letrozole-induced rat model. | |
| EP2931287B1 (de) | Delphinidin zur bekämpfung von melanomzellen | |
| DE102020110573A1 (de) | Wirkstoffe gegen Coronavirus-Infektionen und dadurch verursachte Erkrankungen | |
| Simha et al. | Sida cordifolia, a medicinal plant, is efficacious in models of Huntington’s disease by reducing ER stress | |
| DE69813549T2 (de) | Verwendung von dextran und weiteren nicht-sulfatierten polysacchariden zur förderung der mukusklärung | |
| DE102017110935A1 (de) | Anti-inflammatorische hochreine Oligosaccharide |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
| 17P | Request for examination filed |
Effective date: 20230609 |
|
| AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
| 17Q | First examination report despatched |
Effective date: 20250721 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
| 18W | Application withdrawn |
Effective date: 20251030 |