It takes two to tango: NAD+ and sirtuins in aging/longevity control
| Autor: | Leonard Guarente, Shin-ichiro Imai |
|---|---|
| Přispěvatelé: | Massachusetts Institute of Technology. Department of Biology, Paul F. Glenn Center for Biology of Aging Research (Massachusetts Institute of Technology), Koch Institute for Integrative Cancer Research at MIT, Guarente, Leonard Pershing |
| Rok vydání: | 2016 |
| Předmět: |
0301 basic medicine
Aging Protein deacylation biology media_common.quotation_subject Longevity Energy metabolism Regulator Mitochondrion Nicotinamide adenine dinucleotide Cell biology 03 medical and health sciences chemistry.chemical_compound 030104 developmental biology 0302 clinical medicine chemistry Sirtuin biology.protein NAD+ kinase Geriatrics and Gerontology 030217 neurology & neurosurgery media_common |
| Zdroj: | Nature |
| ISSN: | 2056-3973 |
| DOI: | 10.1038/npjamd.2016.17 |
| Popis: | The coupling of nicotinamide adenine dinucleotide (NAD⁺) breakdown and protein deacylation is a unique feature of the family of proteins called ‘sirtuins.’ This intimate connection between NAD⁺ and sirtuins has an ancient origin and provides a mechanistic foundation that translates the regulation of energy metabolism into aging and longevity control in diverse organisms. Although the field of sirtuin research went through intensive controversies, an increasing number of recent studies have put those controversies to rest and fully established the significance of sirtuins as an evolutionarily conserved aging/longevity regulator. The tight connection between NAD⁺ and sirtuins is regulated at several different levels, adding further complexity to their coordination in metabolic and aging/longevity control. Interestingly, it has been demonstrated that NAD⁺ availability decreases over age, reducing sirtuin activities and affecting the communication between the nucleus and mitochondria at a cellular level and also between the hypothalamus and adipose tissue at a systemic level. These dynamic cellular and systemic processes likely contribute to the development of age-associated functional decline and the pathogenesis of diseases of aging. To mitigate these age-associated problems, supplementation of key NAD⁺ intermediates is currently drawing significant attention. In this review article, we will summarize these important aspects of the intimate connection between NAD⁺ and sirtuins in aging/longevity control. National Institute on Aging (Grant AG037457) National Institute on Aging (Grant AG047902) |
| Databáze: | OpenAIRE |
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