Methods of screening apoptosis modulating compounds,...

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G01N 33/68 (2006.01) A61K 31/66 (2006.01) A61K 31/715 (2006.01) G01N 33/50 (2006.01)

Patent

CA 2478042

The invention relates to a method of screening cellular polypeptides for pro- apoptotic or anti-apoptotic activity in a cell of a particular cell-type, said method comprising a. culturing cells of said particular cell-type under non apoptotic conditions and culturing cells of said particular cell-type under apoptotic conditions; and, b. determining subcellular localisation of said cellular polypeptides in the cultured cells; wherein a localization of a cellular polypeptide in lipid rafts in cultured cells under non apoptotic conditions and a segregation of said cellular polypeptide from lipid rafts in cultured cells under apoptotic conditions is indicative that said cellular polypeptide has a pro-apoptotic or an anti-apoptotic activity in said particular cell-type.

L'invention concerne une méthode de criblage de polypeptides cellulaires à la recherche d'une activité pro-apoptotique ou anti-apoptotique dans une cellule d'un type cellulaire particulier. Cette méthode consiste : a) à cultiver des cellules dudit type cellulaire particulier dans des conditions non apoptotiques et à cultiver des cellules dudit type cellulaire particulier dans des conditions apoptotiques ; et b) à déterminer la localisation subcellulaire desdits polypeptides cellulaires dans les cellules cultivées. Une localisation d'un polypeptide cellulaire dans des radeaux lipidiques de cellules cultivées dans des conditions non apoptotiques et une ségrégation dudit polypeptide cellulaire issu de radeaux lipidiques dans des cellules cultivées dans des conditions apoptotiques indique que ledit polypeptide cellulaire présente une activité pro-apoptotique ou anti-apoptotique dans ledit type cellulaire particulier.

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