Regulation of yeast sirtuins by NAD+ metabolism and calorie restriction

Shu Ping Lu, Su Ju Lin

Research output: Contribution to journalArticle

48 Citations (Scopus)

Abstract

The Sir2 family proteins (sirtuins) are evolutionally conserved NAD+ (nicotinamide adenine dinucleotide)-dependent protein deacetylases and ADP-ribosylases, which have been shown to play important roles in the regulation of stress response, gene transcription, cellular metabolism and longevity. Recent studies have also suggested that sirtuins are downstream targets of calorie restriction (CR), which mediate CR-induced beneficial effects including life span extension in an NAD+-dependent manner. CR extends life span in many species and has been shown to ameliorate many age-associated disorders such as diabetes and cancers. Understanding the mechanisms of CR as well as the regulation of sirtuins will therefore provide insights into the molecular basis of these age-associated metabolic diseases. This review focuses on discussing advances in studies of sirtuins and NAD+ metabolism in genetically tractable model system, the budding yeast Saccharomyces cerevisiae. These studies have unraveled key metabolic longevity factors in the CR signaling and NAD+ biosynthesis pathways, which may also contribute to the regulation of sirtuin activity. Many components of the NAD+ biosynthesis pathway and CR signaling pathway are conserved in yeast and higher eukaryotes including humans. Therefore, these findings will help elucidate the mechanisms underlying age-associated metabolic disease and perhaps human aging.

Original languageEnglish (US)
Pages (from-to)1567-1575
Number of pages9
JournalBiochimica et Biophysica Acta - Proteins and Proteomics
Volume1804
Issue number8
DOIs
StatePublished - Aug 2010

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Sirtuins
Metabolism
NAD
Yeast
Yeasts
Biosynthesis
Metabolic Diseases
Saccharomycetales
Transcription
Medical problems
Life Expectancy
Eukaryota
Adenosine Diphosphate
Saccharomyces cerevisiae
Proteins
Genes
Aging of materials

Keywords

  • Aging
  • Calorie restriction
  • Longevity regulation
  • NAD
  • Sir2

ASJC Scopus subject areas

  • Biochemistry
  • Biophysics
  • Analytical Chemistry
  • Molecular Biology

Cite this

Regulation of yeast sirtuins by NAD+ metabolism and calorie restriction. / Lu, Shu Ping; Lin, Su Ju.

In: Biochimica et Biophysica Acta - Proteins and Proteomics, Vol. 1804, No. 8, 08.2010, p. 1567-1575.

Research output: Contribution to journalArticle

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