p53AIP1 regulates the mitochondrial apoptotic pathway.

نویسندگان

  • Koichi Matsuda
  • Koji Yoshida
  • Yoichi Taya
  • Kozo Nakamura
  • Yusuke Nakamura
  • Hirofumi Arakawa
چکیده

We identified recently the p53AIP1 gene, a novel p53 target that mediates p53-dependent apoptosis. In the experiments reported here, ectopic expression of p53AIP1 induced down-regulation of mitochondrial DeltaPsim and release of cytochrome c from mitochondria in human cells. Immunoprecipitation and immunostaining experiments indicated interaction between p53AIP1 and bcl-2 proteins at mitochondria. Overexpression of bcl-2 blocked the down-regulation of mitochondrial DeltaPsim and the proapoptotic activity of p53AIP1. Our results implicate p53AIP1 as a pivotal mediator of the p53-dependent mitochondrial apoptotic pathway.

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عنوان ژورنال:
  • Cancer research

دوره 62 10  شماره 

صفحات  -

تاریخ انتشار 2002