Treatment of human papillomavirus (hpv)-infected cells

A - Human Necessities – 61 – K

Patent

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Details

A61K 48/00 (2006.01) A61P 35/00 (2006.01) C12N 15/85 (2006.01) C12N 15/86 (2006.01)

Patent

CA 2408830

This invention provides a novel gene therapy approach to specifically eliminate keratinocytes, or other cells, expressing early HPV (e.g. HPV 16) genes and which is minimally toxic to HPV-negative cells. In a preferred embodiment this method involves transfecting a mammalian cell with a nucleic acid construct encoding an HPV specific promoter that is induced by an HPV protein where the promoter is operably linked to a nucleic acid comprising a cytotoxic gene such that the cell, when infected with a human papilloma virus induces expression of the cytotoxic gene thereby resulting in the death of said mammalian cell.

L'invention porte sur une nouvelle thérapie génique, éliminant spécifiquement les kératinocytes ou autres cellules exprimant les gènes précoces du HPV (par exemple du HPV 16), et très peu toxique vis-à-vis des cellules HPV négatives. Dans la réalisation préférée, la méthode consiste à transfecter une cellule de mammifère par un produit d'assemblage d'acide nucléique codant pour un promoteur, spécifique du HPV induit par une protéine HPV, et fonctionnellement lié à un acide nucléique comprenant un gène cytotoxique, de manière à ce que la cellule ayant été infectée par la HPV induise l'expression du gène cytotoxique, entraînant par là la mort de ladite cellule de mammifère.

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