Methods and compositions to treat and detect misfolded-sod1...

C - Chemistry – Metallurgy – 12 – N

Patent

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Details

C12N 15/53 (2006.01) A61K 31/7088 (2006.01) A61K 38/44 (2006.01) A61K 39/00 (2006.01) A61K 39/395 (2006.01) A61K 48/00 (2006.01) A61P 25/28 (2006.01) C07K 16/40 (2006.01) C12N 5/12 (2006.01) C12N 9/02 (2006.01) G01N 33/573 (2006.01)

Patent

CA 2642848

The invention provides a method for treating a medical condition, disease, or disorder mediated by a misfolded form of superoxide dismutase (SOD) in a subject in need of treatment. The method optionally comprises administering to the subject a composition comprising a pharmaceutically acceptable vehicle and an agent selected from (1) an exogenous antibody or fragment thereof that binds selectively to the misfolded form of SOD, and/or (2) an immunogen that elicits production of an endogenous antibody that binds selectively to the misfolded form of SOD, and/or (3) a nucleic acid sequence encoding (1) or (2). In certain embodiments, the invention provides methods of treating diseases such as Alzheimer's Disease, Parkinson's Disease or amyotrophic lateral sclerosis using amyotrophic disease-specific epitopes, and compositions including these epitopes. The invention also provides antibodies that bind to monomeric or misfolded SOD1, and not on the molecular surface of native homodimeric SOD1. In addition, the invention includes methods of diagnosing Alzheimer's Disease, Parkinson's Disease or amyotrophic lateral sclerosis in a subject. Also, the invention provides methods of identifying substances for the treatment or prevention of Alzheimer's Disease, Parkinson's Disease or amyotrophic lateral sclerosis and kits using the binding proteins of the invention.

Cette invention concerne une méthode de traitement d'un état pathologique, d'une maladie ou d'un trouble induit par une forme à repliement incorrect de superoxyde dismutase (SOD) chez un sujet nécessitant un tel traitement. Cette méthode consiste éventuellement à administrer au sujet une composition renfermant un excipient pharmaceutiquement acceptable et un agent sélectionné parmi (1) un anticorps exogène ou un fragment de celui-ci qui se lie sélectivement à la forme à repliement incorrect de SOD et/ou (2) un immunogène qui provoque la production d'un anticorps endogène qui se lie sélectivement à la forme à repliement incorrect de SOD et/ou (3) une séquence d'acides nucléiques codant (1) ou (2). Dans certains modes de réalisation, cette invention concerne des méthodes permettant de traiter la maladie d'Alzheimer, la maladie de Parkinson ou la sclérose latérale amyotrophique au moyen d'épitopes spécifiques des maladies amyotrophiques et des compositions comprenant ces épitopes. Cette invention concerne également des anticorps qui se lient à la SOD1 monomère ou à repliement incorrect, et non pas sur la surface moléculaire de la SOD1 homodimère native. En outre, cette invention concerne des méthodes permettant de diagnostiquer la maladie d'Alzheimer, la maladie de Parkinson ou la sclérose latérale amyotrophique chez un sujet. Cette invention concerne aussi des méthodes permettant d'identifier des substances pour le traitement ou la prévention de la maladie d'Alzheimer, la maladie de Parkinson ou la sclérose latérale amyotrophique et des trousses utilisant les protéines de liaison de cette invention.

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