Open Access
Article
Micromanagement of the mitochondrial apoptotic pathway by p53
Vijay Walia1,Smita Kakar1,Randolph Elble1
1
Department of Pharmacology and Simmons Cancer Institute, Southern Illinois University School of Medicine, Springfield, Illinois 62794, USA
DOI: 10.2741/3717 Volume 16 Issue 2, pp.749-758
Published: 01 January 2011
(This article belongs to the Special Issue Pathogenesis of tumor progression in breast and prostate cancer)
Abstract

It is now well established that p53 is the primary arbiter of stress-response and the principal barrier to neoplastic processes at the cellular level. Perhaps the most potent weapon in p53's tumor suppressive arsenal is apoptosis, enacted as a last resort when all other remedies are exhausted. Initially, the mechanism was thought to be simply activation or repression of Bcl-2 family members by p53. More recently, evidence of a more rapid pathway emerged whereby p53 physically interacts with Bcl-2 family members to tip the balance toward apoptosis. This review details the multiple levels of regulation of mitochondrially-directed apoptosis by p53, including recent findings of how p53 translocation is regulated.

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Vijay Walia, Smita Kakar, Randolph Elble. Micromanagement of the mitochondrial apoptotic pathway by p53. Frontiers in Bioscience-Landmark. 2011. 16(2); 749-758.