Gonadal Steroid Receptor-miRNA Switch Regulates Lifespan

Created on Dec. 15, 2012, 12:52 a.m. by Hevok & updated by Hevok on May 2, 2013, 4:57 p.m.

The gonad affects animal lifespan. Removal of C. elegans germ line triggers a switch in the regulatory state of the organism to promote longevity, co-opting components involved in larval developmental timing circuits, including DAF-12 (steroid receptor) and up-regulation of members of the let-7 miRNA family. let-7 miRNAs target lin-14 (early larval nuclear factor) and akt-1 (kinase), thereby stimulating DAF-16/FOXO signaling to extend lifespan [http://www.sciencemag.org.ezproxy.liv.ac.uk/content/338/6113/1472.abstract].

steroid-receptor-research.jpg

Tags: aging, microRNA, lifespan, gonad
Categories: News
Parent: Aging

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