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Trends Genet. 2014 Jul;30(7):271-86. doi: 10.1016/j.tig.2014.04.007. Epub 2014 May 28.

Sirtuins: guardians of mammalian healthspan.

Author information

1
Department of Human Genetics, University of Michigan, Ann Arbor, MI 48109, USA.
2
Department of Pathology, University of Michigan, Ann Arbor, MI 48109, USA.
3
Department of Pathology, University of Michigan, Ann Arbor, MI 48109, USA; Institute of Gerontology, University of Michigan, Ann Arbor, MI 48109, USA. Electronic address: davidlom@umich.edu.

Abstract

The first link between sirtuins and longevity was made 15 years ago in yeast. These initial studies sparked efforts by many laboratories working in diverse model organisms to elucidate the relations between sirtuins, lifespan, and age-associated dysfunction. Here, we discuss the current understanding of how sirtuins relate to aging. We focus primarily on mammalian sirtuins SIRT1, SIRT3, and SIRT6, the three sirtuins for which the most relevant data are available. Strikingly, a large body of evidence now indicates that these and other mammalian sirtuins suppress a variety of age-related pathologies and promote healthspan. Moreover, increased expression of SIRT1 or SIRT6 extends mouse lifespan. Overall, these data point to important roles for sirtuins in promoting mammalian health, and perhaps in modulating the aging process.

KEYWORDS:

NAD(+); SIRT1; SIRT3; SIRT6; age-associated disease; aging; longevity; mitochondria

PMID:
24877878
PMCID:
PMC4077918
DOI:
10.1016/j.tig.2014.04.007
[Indexed for MEDLINE]
Free PMC Article

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