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Title: Sirt1's systemic protective roles and its promise as a target in antiaging medicine
Authors: Tang, B.L. 
Issue Date: May-2011
Citation: Tang, B.L. (2011-05). Sirt1's systemic protective roles and its promise as a target in antiaging medicine. Translational Research 157 (5) : 276-284. ScholarBank@NUS Repository.
Abstract: Silent information regulator 2 (Sir2/Sirt1), a member of the sirtuin family of class III histone deacetylases, has been implicated extensively in lifespan extension and is a prominent drug target in antiaging medicine. The mammalian Sirt1 has multiple targets, which include histones, transcription factors, and other molecules that collectively modulate energy metabolism, stress response, and cell/tissue survival. Several of Sirt1's substrates regulate key metabolic processes, and Sirt1 activation may underlie the lifespan prolonging effect of caloric restriction. Recent studies have also identified multifaceted protective roles for Sirt1 against cellular senescence and stress in the neural, cardiovascular, and renal systems. Sirt1's activity in multiple tissues may decline with aging, and sustaining or reactivating this activity seems invariably beneficial. Several studies also point towards a general tumor suppressive role for Sirt1, at least in the context of certain human cancers. Development of Sirt1-based therapeutic interventions against systemic aging and aging-associated diseases will benefit from a thorough understanding of underlying pathological mechanisms of diseases as well as metabolic connections between different tissues and organs. © 2011 Mosby, Inc. All rights reserved.
Source Title: Translational Research
ISSN: 19315244
DOI: 10.1016/j.trsl.2010.11.006
Appears in Collections:Staff Publications

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