Anti-cancer immunotherapeutic vector constructs

C - Chemistry – Metallurgy – 12 – N

Patent

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Details

C12N 15/86 (2006.01) A61K 39/00 (2006.01) A61K 48/00 (2006.01) C07K 14/00 (2006.01) C07K 14/47 (2006.01) C07K 14/82 (2006.01)

Patent

CA 2117303

The present invention provides a method of destroying selected tumor cells comprising administering to a warm-blooded animal a vector construct which directs the expression of at least one immunogenic, non-tumorigenic form of an altered cellular component normally associated with the selected tumor cells. Also provided are vector constructs which direct the expression of altered cellular components. Representative altered cellular components include ras*, p53*, Rb*, alter protein encoded by the Wilms' tumor gene, ubiquitin*, DCC, APC, MCC, neu, an altered receptor, and bcr/abl. Also provided are recombinant viruses carrying a vector construct, target cells infected with the recombinant virus and pharmaceutical compositions comprising the recombinant virus and a pharmaceutically acceptable carrier or diluent.

L'invention se rapporte à un procédé de destruction de cellules cancéreuses sélectionnées comprenant l'administration à un animal à sang chaud d'une structure de vecteurs dirigeant l'expression d'au moins une forme immunogène, non tumorigène d'un constituant cellulaire modifié normalement associé aux cellules cancéreuses sélectionnées. L'invention décrit également des structures de vecteurs dirigeant l'expression de constituants cellulaires modifiés. Les constituants cellulaires modifiés représentatifs comprennent RAS*, p53*, Rb*, une protéine de modification codée par le gène de la tumeur de Wilms, l'ubiquitine*, DCC, APC, MCC, neu, un récepteur modifié et bcr/abl. L'invention décrit également des virus recombinants portant une structure de vecteurs, des cellules cibles infectées par le virus recombinant, ainsi que des compositions pharmaceutiques comprenant ledit virus recombinant et un agent porteur ou diluant acceptable pharmaceutiquement.

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