期刊
SCIENCE
卷 322, 期 5903, 页码 957-960出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1162011
关键词
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资金
- Life Sciences Research Foundation
- Ellison Medical Foundation
- Human Frontier Science Program
- NIH [5R01AG016636, 5R37AG14161]
Fat metabolism, reproduction, and aging are intertwined regulatory axes; however, the mechanism by which they are coupled remains poorly understood. We found that germline stem cells (GSCs) actively modulate lipid hydrolysis in Caenorhabditis elegans, which in turn regulates longevity. GSC arrest promotes systemic lipolysis via induction of a specific fat lipase. Subsequently, fat mobilization is promoted and life span is prolonged. Constitutive expression of this lipase in fat storage tissue generates lean and long- lived animals. This lipase is a key factor in the lipid hydrolysis and increased longevity that are induced by decreased insulin signaling. These results suggest a link between C. elegans fat metabolism and longevity.
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