Hypoxia-inducible factor 1: regulator of mitochondrial metabolism and mediator of ischemic preconditioning.
Hypoxia-inducible factor 1: regulator of mitochondrial metabolism and mediator of ischemic preconditioning.
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DOI:
10.1016/j.bbamcr.2010.08.006
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发表时间:
2011-07
期刊:
影响因子:
--
通讯作者:
Semenza GL
中科院分区:
文献类型:
--
作者:
Semenza GL
Hypoxia-inducible factor 1 (HIF-1) mediates adaptive responses to reduced oxygen availability by regulating gene expression. A critical cell-autonomous adaptive response to chronic hypoxia controlled by HIF-1 is reduced mitochondrial mass and/or metabolism. Exposure of HIF-1-deficient fibroblasts to chronic hypoxia results in cell death due to excessive levels of reactive oxygen species (ROS). HIF-1 reduces ROS production under hypoxic conditions by multiple mechanisms including: a subunit switch in cytochrome c oxidase from the COX4-1 to COX4-2 regulatory subunit that increases the efficiency of complex IV; induction of pyruvate dehydrogenase kinase 1, which shunts pyruvate away from the mitochondria; induction of BNIP3, which triggers mitochondrial selective autophagy; and induction of microRNA-210, which blocks assembly of Fe/S clusters that are required for oxidative phosphorylation. HIF-1 is also required for ischemic preconditioning and this effect may be due in part to its induction of CD73, the enzyme that produces adenosine. HIF-1-dependent regulation of mitochondrial metabolism may also contribute to the protective effects of ischemic preconditioning.
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DOI:
10.1074/jbc.m901790200
发表时间:
2009-06-19
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Mole DR;Blancher C;Copley RR;Pollard PJ;Gleadle JM;Ragoussis J;Ratcliffe PJ
通讯作者:
Ratcliffe PJ
影响因子:
20.3
作者:
Manalo, DJ;Rowan, A;Semenza, GL
通讯作者:
Semenza, GL
影响因子:
37.8
作者:
Cai, ZQ;Semenza, GL
通讯作者:
Semenza, GL
影响因子:
4.8
作者:
Beyer, Sophie;Kristensen, Malene Maag;Staller, Peter
通讯作者:
Staller, Peter
DOI:
10.1073/pnas.141234698
发表时间:
2001-07-03
影响因子:
11.1
作者:
Jiang, HQ;Guo, R;Powell-Coffman, JA
通讯作者:
Powell-Coffman, JA