A radical signal activates the epigenetic regulation of longevity.

Mirisola, Mario G; Longo, Valter D · Cell Metab · 2013

editorial · Level V

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Abstract

Hormesis is an adaptive stress response implicated in longevity regulation. Schroeder et al. (2013) have now connected stress, epigenetic changes, and aging in yeast by showing that mitochondria-derived reactive oxygen species modulate the chromatin binding capacity of the histone demethylase Rph1p at subtelomeres, resulting in lifespan extension.

Medical subject headings