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      Mitochondrial autophagy is an HIF-1-dependent adaptive metabolic response to hypoxia.

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          Abstract

          Autophagy is a process by which cytoplasmic organelles can be catabolized either to remove defective structures or as a means of providing macromolecules for energy generation under conditions of nutrient starvation. In this study we demonstrate that mitochondrial autophagy is induced by hypoxia, that this process requires the hypoxia-dependent factor-1-dependent expression of BNIP3 and the constitutive expression of Beclin-1 and Atg5, and that in cells subjected to prolonged hypoxia, mitochondrial autophagy is an adaptive metabolic response which is necessary to prevent increased levels of reactive oxygen species and cell death.

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          Author and article information

          Journal
          J Biol Chem
          The Journal of biological chemistry
          American Society for Biochemistry & Molecular Biology (ASBMB)
          0021-9258
          0021-9258
          Apr 18 2008
          : 283
          : 16
          Affiliations
          [1 ] Vascular Program, Institute for Cell Engineering, The Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA.
          Article
          S0021-9258(20)62057-9
          10.1074/jbc.M800102200
          2447655
          18281291
          99453edb-58b8-4e97-9b31-2d110200d9eb
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