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Trends Endocrinol Metab. 2006 Jul;17(5):186-91. Epub 2006 May 8.

SIRT1 and endocrine signaling.

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  • 1Department of Pharmacology, Weill Medical College of Cornell University, 1300 York Avenue, LC-216, New York, NY 10021, USA.

Abstract

Sirtuins (Sir2-related enzymes) are a recently discovered class of NAD(+)-dependent protein deacetylases that regulate gene expression in a variety of organisms by deacetylation of modified lysine residues on histones, transcription factors and other proteins. Conservation of sirtuin regulation of the insulin-insulin-like growth factor I signaling pathway has been observed for Caenorhabditis elegans and mammals, indicating an ancient role for sirtuins in the modulation of organism adaptations to nutritional intake. The human sirtuin SIRT1 regulates a number of transcription factors that modulate endocrine signaling, including peroxisome proliferator-activated receptor gamma, peroxisome proliferator-activated receptor gamma coactivator 1alpha, forkhead-box transcription factors and p53.

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