Recombinant parainfluenza virus expression systems and...

C - Chemistry – Metallurgy – 12 – N

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C12N 15/45 (2006.01) A61K 39/155 (2006.01) A61P 31/14 (2006.01) A61P 31/16 (2006.01) C12N 7/01 (2006.01) C12N 7/02 (2006.01) C12N 15/86 (2006.01)

Patent

CA 2523657

The present invention relates to recombinant bovine parainflueza virus (bPIV) cDNA or RNA which may be used to express heterologous gene products in appropriate host cell systems and/or to rescue negative strand RNA recombinant viruses that express, package, and/or present the heterologous gene product. In particular, the heterologous gene products include gene product of another species of PIV or from another negative strand RNA virus, including but not limited to, influenza virus, respiratory syncytial virus, human metapneumovirus and avian pneumovirus. The chimeric viruses and expression products may advantageously be used in vaccine formulation including vaccines against a broad range of pathogens and antigens.

La présente invention a trait à l'ADNc ou l'ARN du virus parainfluenza bovin recombinant pouvant être utilisé pour l'expression de produits géniques hétérologues dans des systèmes cellulaires hôtes appropriés et/ou pour le sauvetage de virus recombinants à ARN de polarité négative qui assurent l'expression, l'encapsidation, et/ou la présentation du produit génique hétérologue. Notamment, les produits géniques hétérologues comprennent un produit génique d'une autre espèce de virus parainfluenza ou dérivé d'un autre virus à ARN de polarité négative, comprenant mais de manière non exclusive, le virus grippal, le virus respiratoire syncytial, le métapneumovirus humain et le pneumovirus aviaire. Les virus chimériques et les produits d'expression peuvent être utilisés de manière avantageuse dans la formulation de vaccins comprenant des vaccins contre une grande variété de pathogènes et d'antigènes.

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