Increased longevity of some C. elegans mitochondrial mutants explained by activation of an alternative energy-producing pathway

被引:25
作者
Gallo, Marco [1 ,2 ]
Park, Donha [2 ]
Riddle, Donald L. [1 ,2 ]
机构
[1] Univ British Columbia, Dept Med Genet, Fac Med, Vancouver, BC V6T 1Z4, Canada
[2] Univ British Columbia, Michael Smith Labs, Vancouver, BC V6T 1Z4, Canada
基金
加拿大健康研究院; 加拿大自然科学与工程研究理事会;
关键词
C; elegans; Mitochondria; Glyoxylate shunt; Oxidative stress response; Aging; CAENORHABDITIS-ELEGANS; LIFE-SPAN; ELECTRON-TRANSPORT; OXIDATIVE STRESS; DAF-16; GENE; DYSFUNCTION; METABOLISM; MODULATION; EXPRESSION;
D O I
10.1016/j.mad.2011.08.004
中图分类号
Q2 [细胞生物学];
学科分类号
071009 ; 090102 ;
摘要
The Caenorhabditis elegans misc-1 gene encodes a mitochondrial carrier with a role in oxidative stress response. The knock-out mutant has no lifespan phenotype and fails to upregulate the gei-7-mediated glyoxylate shunt, an extra-mitochondrial pathway of energy production. We show that gei-7 is required for the longevity of the mitochondrial mutant clk-1. Our data suggest that only mitochondrial mutants that upregulate gei-7 can achieve longevity. (C) 2011 Elsevier Ireland Ltd. All rights reserved.
引用
收藏
页码:515 / 518
页数:4
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