Hcv fusion polypeptides

C - Chemistry – Metallurgy – 12 – N

Patent

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Details

C12N 15/51 (2006.01) A61K 39/29 (2006.01) A61K 39/295 (2006.01) C12N 5/10 (2006.01) C12N 15/62 (2006.01)

Patent

CA 2661492

The invention provides HCV fusion polypeptides including truncated or full- length HCV NS5 polypeptides, and a portion of the HCV NS2 polypeptide, fused to at least one other HCV epitope derived from another region of the HCV polyprotein. The fusions can be used in methods of stimulating an immune response to HCV, for example a cellular immune response to HCV, such as activating hepatitis C virus (HCV)-specific T cells, including CD4+ and CD8+ T cells. The method can be used in model systems to develop HCV-specific immunogenic compositions, as well as to immunize against HCV.

L'invention concerne des polypeptides de fusion du VHC comprenant des polypeptides NS5 du VHC complets ou tronqués, et une partie du polypeptide NS2 du VHC, fusionnés avec au moins un autre épitope du VHC provenant d'une autre région de la polyprotéine du VHC. Les fusions peuvent être utilisées dans des procédés destinés à stimuler une réponse immunitaire au VHC, par exemple une réponse immunitaire cellulaire au VHC, telle que l'activation de lymphocytes T spécifiques au virus de l'hépatite C (VHC), notamment les lymphocytes T CD4+ et T CD8+. Le procédé peut être utilisé dans des systèmes de modélisation pour développer des compositions immunogènes spécifiques au VHC, ainsi que pour immuniser contre le VHC.

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