期刊
SCIENCE
卷 322, 期 5901, 页码 583-586出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1156232
关键词
-
资金
- NIH
- National Institute of Diabetes and Digestive and Kidney Diseases [1R01DK064261, 1R01DK066556]
- University of Texas Southwestern Medical Center Excellence in Education Fund
- University of Texas Southwestern Medical Center
White adipose (fat) tissues regulate metabolism, reproduction, and life span. Adipocytes form throughout life, with the most marked expansion of the lineage occurring during the postnatal period. Adipocytes develop in coordination with the vasculature, but the identity and location of white adipocyte progenitor cells in vivo are unknown. We used genetically marked mice to isolate proliferating and renewing adipogenic progenitors. We found that most adipocytes descend from a pool of these proliferating progenitors that are already committed, either prenatally or early in postnatal life. These progenitors reside in the mural cell compartment of the adipose vasculature, but not in the vasculature of other tissues. Thus, the adipose vasculature appears to function as a progenitor niche and may provide signals for adipocyte development.
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