Osteoarthritis biomarkers and uses thereof

C - Chemistry – Metallurgy – 40 – B

Patent

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Details

C40B 40/06 (2006.01) C07H 21/00 (2006.01) C12Q 1/68 (2006.01) C40B 40/10 (2006.01) G01N 33/53 (2006.01) G01N 33/577 (2006.01) C40B 30/04 (2006.01)

Patent

CA 2534661

The invention relates to the identification and selection of novel biomarkers and the identification and selection of novel biomarker combinations which are differentially expressed in osteoarthritis and/or in a particular stage of 6steoarthritis, as well as a means of selecting the novel biomarker combinations. The measurement of expression of the products of the biomarkers and combinations of biomarkers of the invention demonstrates particular advantage in one or more of the following: (a) diagnosing individuals as having arthritis, (b) differentiating between two stages of osteoarthritis (OA) and (c) diagnosing individuals as having a particular stage of osteoarthritis (OA). As would be understood, in order to measure the products of biomarkers of the invention, polynucleotides and proteins which specifically and/or selectively hybridize to the products of the biomarkers of the invention are also encompassed within the scope of the invention as are kits containing said polynucleotides and proteins for use in (a) diagnosing individuals as having arthritis, (b) differentiating between two stages of osteoarthritis (OA) and (c) diagnosing individuals as having a particular stage of osteoarthritis (OA). Further encompassed by the invention is the use of the polynucleotides and proteins which specifically and/or selectively hybridize to the product of the biomarkers of the invention to monitor disease progression in an individual and to monitor the efficacy of therapeutic regimens. The invention also provides for methods of using the products of the biomarkers of the invention in the identification of novel therapeutic targets for osteoarthritis. The invention also provides for methods of using the products of the biomarkers of the invention in the identification of compounds that bind and/or modulate the activity of the genes of the invention. The compounds identified via such methods are useful for the development of assays to study osteoarthritis and osteoarthritis progression. Further, the compounds identified via such methods are useful as lead compounds in the development of prophylactic and therapeutic compositions for the prevention, treatment, management and/or amelioration of osteoarthritis or a symptom thereof.

L'invention concerne l'identification et la sélection de nouveaux biomarqueurs et de nouvelles combinaisons de biomarqueurs exprimés différemment dans l'ostéoarthrite et/ou en particulier dans des stades d'ostéoarthrite ainsi qu'un moyen permettant de sélectionner ces nouvelles combinaisons de biomarqueurs. La mesure de l'expression des produits et des combinaisons de biomarqueurs de l'invention montre un ou plusieurs des avantages suivants: a) diagnostic d'individus souffrant d'arthrite, b) différentiation entre deux stades d''ostéoarthrite (OA) et c) diagnostic d'individus présentant un stade particulier d'ostéoarthrite (OA). Afin de mesurer les produits de biomarqueurs, l'invention concerne également des polynucléotides et des protéines spécifiquement et/ou sélectivement hybridés avec lesdits produits de biomarqueurs ainsi que des kits contenant lesdits polynucléotides et protéines utilisés: a) dans le diagnostic d'individus souffrant d'arthrite, b) dans la différentiation entre deux stades d''ostéoarthrite (OA) et c) dans le diagnostic d'individus présentant un stade particulier d'ostéoarthrite (OA). L'invention concerne en outre l'utilisation des polynucléotides et des protéines spécifiquement et/ou sélectivement hybridés avec lesdits les produits de biomarqueurs pour surveiller la progression de la maladie chez un individu et l'efficacité de schémas posologiques thérapeutiques. L'invention concerne aussi des méthodes d'utilisation des produits de biomarqueurs pour identifier de nouvelles cibles thérapeutiques pour l'ostéoarthrite, et des composés qui se lient et/ou modulent l'activité des gènes de l'invention. Les composés identifiés via ces méthodes sont utilisés pour développer des dosages afin d'étudier l'ostéoarthrite et sa progression, et comme composés principaux dans le développement de compositions prophylactiques et thérapeutiques permettant de prévenir, traiter et/ou améliorer l'ostéoarthrite ou un symptôme de celle-ci.

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