Paramyxoviral vectors encoding antibodies, and uses thereof

C - Chemistry – Metallurgy – 12 – N

Patent

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Details

C12N 15/09 (2006.01) A61K 35/76 (2006.01) A61K 39/395 (2006.01) A61K 48/00 (2006.01) A61P 19/08 (2006.01) A61P 25/00 (2006.01) A61P 37/06 (2006.01) A61P 43/00 (2006.01) C07K 16/00 (2006.01) C07K 16/18 (2006.01) C07K 16/28 (2006.01) C12N 7/00 (2006.01) C12N 15/86 (2006.01) C12P 21/02 (2006.01)

Patent

CA 2488270

It is intended to provide a paramyxovirus vector expressing a polypeptide containing antibody variable regions. This vector, which encodes antibody H chain and L chain variable regions, expresses these antibody chains at the same time to form Fab. Also, a single-stranded antibody is successfully expressed at a high level. The above vector is appropriately usable as a gene therapeutic vector to be administered to a living body either in vivo or ex vivo. In particular, a vector expressing an antibody fragment against nerve elongation inhibitor is useful in treating nerve injury. The above vector expressing an antibody which inhibits immunopotentiation signal transfer enables the prolonged expression of a gene from the vector.

La présente invention a trait à un vecteur de paramyxovirus exprimant un polypeptide contenant des régions variables d'anticorps. Ce vecteur, codant pour des régions variables de chaîne H et de chaîne L d'anticorps, exprime ces chaînes d'anticorps simultanément pour la formation de Fab. Un anticorps à simple brin est également exprimé avec succès à un niveau élevé. Ledit vecteur est apte à être utilisé en tant que vecteur de thérapie génique destiné à être administré à un corps vivant in vivo ou ex vivo. En particulier, un vecteur exprimant un fragment d'anticorps contre l'inhibiteur de l'élongation de nerfs est utile dans le traitement de lésion nerveuse. Ledit vecteur exprimant un anticorps qui inhibe le transfert de signal d'immunopotentialisation permet l'expression prolongée d'un gène dérivé du vecteur.

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