ArticleStem cells (Dayton, Ohio)2022
Telomerase Reverse Transcriptase Expression Marks a Population of Rare Adipose Tissue Stem Cells.
Article in Stem cells (Dayton, Ohio), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
In adult tissues such as adipose tissue, post-mitotic cells like adipocytes can be replaced by differentiation of a population of tissue-resident stem cells. Expression of mouse telomerase reverse transcriptase (mTert) is a hallmark of stem cell populations, and previous efforts to identify tissue-resident adult stem cells by measuring mTert expression have increased our understanding of stem cell biology significantly. Here, we used a doxycycline-inducible mouse model to perform longitudinal, live-animal lineage-tracing of mTert-expressing cells for more than 1 year. We identified a rare (<2%) population of stem cells in different fat depots that express putative preadipocyte markers. The adipose-derived mTert-positive cells are capable of self-renewal and possess adipogenic potential. Finally, we demonstrate that high-fat diet (HFD) can initiate differentiation of these cells in vivo. These data identify a population of adipose stem cells that contribute to the depot-specific response to HFD.
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