Apoptosis is the essential target of selective pressure against p53, whereas loss of additional p53 functions facilitates carcinoma progression.

Abstract excerpt

The high frequency of p53 mutation in human cancers indicates the important role of p53 in suppressing tumorigenesis. It is well established that the p53 regulates multiple, distinct cellular functions such as cell-cycle arrest and apoptosis. Despite intensive studies, little is known about which function is essential, or if multiple pathways are required, for p53-dependent tumor suppression in vivo. Using a...

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