SIRT1 is a NAD+-dependent deacetylase implicated in longevity and diverse physiological processes. SIRT1, as a key mediator of beneficial effects of caloric restriction, regulates lipid and glucose metabolism by deacetylating metabolic regulators, as well as histones, in response to nutritional deprivation. Here we discuss how SIRT1 levels are regulated by microRNAs (miRs) which are emerging as important metabolic regulators; the recently identified nuclear receptor FXR/SHP cascade pathway that controls the expression of miR-34a and its target SIRT1; and a FXR/SIRT1 positive feedback regulatory loop, which is deregulated in metabolic disease states. The FXR/miR-34a pathway and other miRs controlling SIRT1 may be useful therapeutic targets for age-related diseases, including metabolic disorders.
Controlling SIRT1 expression by microRNAs in health and metabolic disease
Published 2010 in Aging
ABSTRACT
PUBLICATION RECORD
- Publication year
2010
- Venue
Aging
- Publication date
2010-08-01
- Fields of study
Biology, Medicine
- Identifiers
- External record
- Source metadata
Semantic Scholar, PubMed
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