2015年7月9日木曜日

Anterior openで長生き


The Ras-Erk-ETS-Signaling Pathway Is a Drug Target for Longevity.  Cell 162: 72–83.
Identifying the molecular mechanisms that underlie aging and their pharmacological manipulation are key aims for improving lifelong human health.  Here, we identify a critical role for Ras-Erk-ETS signaling in aging in Drosophila.  We show that inhibition of Ras is sufficient for lifespan extension downstream of reduced insulin/IGF-1 (IIS) signaling.  Moreover, direct reduction of Ras or Erk activity leads to increased lifespan.  We identify the E-twenty six (ETS) transcriptional repressor, Anterior open (Aop), as central to lifespan extension caused by reduced IIS or Ras attenuation.  Importantly, we demonstrate that adult-onset administration of the drug trametinib, a highly specific inhibitor of Ras-Erk-ETS signaling, can extend lifespan.  This discovery of the Ras-Erk-ETS pathway as a pharmacological target for animal aging, together with the high degree of evolutionary conservation of the pathway, suggests that inhibition of Ras-Erk-ETS signaling may provide an effective target for anti-aging interventions in mammals.

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