Comparative Analysis of P73 and P53 Regulation and Effector Functions

Abstract excerpt

p53 is mutated in approximately 50% of human cancers, whereas mutations of the related p73 gene are rare. p73 can activate p53-responsive promoters and induce apoptosis when overexpressed in certain p53-deficient tumor cells. We show that p73 isoforms, p73alpha and p73beta, can each induce permanent growth arrest with markers of replicative senescence when overexpressed in a tetracycline-regulatable manner in...

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