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Nature Cell Biology 10, 637 - 639 (2008)
doi:10.1038/ncb0608-637

p53: The Janus of autophagy?

Beth Levine1 & John Abrams2

  1. Beth Levine is in the Departments of Internal Medicine and Microbiology at the University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.
    e-mail: beth.levine@utsouthwestern.edu
  2. John Abrams is in the Department of Cell Biology at the University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.
    e-mail: john.abrams@utsouthwestern.edu


The autophagy pathway functions in adaptation to nutrient stress and tumour suppression. The p53 tumour suppressor, previously thought to positively regulate autophagy, may also inhibit it. This dual interplay between p53 and autophagy regulation is enigmatic, but may underlie key aspects of metabolism and cancer biology.

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