Mitochondrial stress signals revise an old aging theory.

Woo, Dong Kyun; Shadel, Gerald S · Cell · 2011

editorial · Level V

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Abstract

In this issue, Durieux et al. (2011) describe a tissue-specific signal, originating from mitochondria, that acts cell non-autonomously to regulate life span in the nematode, C. elegans. This new finding provides a first step toward resolving the relative contributions of mitochondrial free radical damage and signaling mechanisms in aging.