Dysregulation of c-MYC plays a critical role in the development of many human cancers. New evidence has uncovered a previously unknown mechanism whereby increased abundance of c-MYC can promote poly(ADP-ribose) polymerase (PARP)–dependent DNA repair pathways and induce relative chemoresistance. The adaptor protein BIN1, whose expression is regulated by c-MYC, interacts with PARP1 and inhibits its enzymatic activity. A model has been proposed in which increased abundance of c-MYC indirectly
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