P193 proteins and nucleic acids, and uses thereof

C - Chemistry – Metallurgy – 12 – N

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Details

C12N 15/12 (2006.01) A61K 38/17 (2006.01) C07K 14/47 (2006.01) C07K 16/18 (2006.01) G01N 33/68 (2006.01) A61K 38/00 (2006.01)

Patent

CA 2383371

Described are nucleotide sequences coding for and regulating expression of a cell cycle regulatory protein, designated p193, and recombinant vectors and host cells containing nucleotide sequences coding for and regulating expression of the protein sequence. Also described are methods for modifying the cell cycle of a cell by regulating p193 or its pathway. Methods for inducing apoptosis in cells are provided by increasing level of a pro- apoptotic p193 protein in the cells. Methods for suppressing apoptosis in or increasing the proliferative potential of cells are provided by reducing the level of pro-apoptotic p193 protein the cells and/or by interfering with the native p193 signal transduction pathway, for instance utilizing a p193 protein having a dominant negative mutation.

Cette invention se rapporte à des séquences nucléotidiques codant et régulant l'expression d'une protéine régulatoire du cycle cellulaire, appelée p193, et à des vecteurs recombinés et à des cellules hôtes contenant des séquences nucléotidiques codant et régulant l'expression de la séquence de cette protéine. Cette invention concerne également des procédés servant à modifier le cycle cellulaire d'une cellule en régulant la protéine p193 ou sa voie de passage. On obtient des procédés induisant l'apoptose dans des cellules, en accroissant le niveau d'une protéine p193 pro-apoptotique dans ces cellules. On obtient des procédés supprimant l'apoptose dans des cellules ou accroissant le potentiel prolifératif de cellules, en réduisant le niveau de la protéine p193 pro-apoptotique dans ces cellules et/ou en interférant avec la voie de transduction du signal de la protéine p193 native, par exemple en utilisant une protéine p193 ayant une mutation négative dominante.

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