Pref-1 marks very early mesenchymal precursors required for adipose tissue development and expansion.
Pref-1 marks very early mesenchymal precursors required for adipose tissue development and expansion.
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DOI:
10.1016/j.celrep.2014.06.060
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发表时间:
2014-08-07
期刊:
影响因子:
8.8
通讯作者:
Sul HS
中科院分区:
文献类型:
--
作者:
Hudak CS;Gulyaeva O;Wang Y;Park SM;Lee L;Kang C;Sul HS
Pref-1 is an EGF-repeat containing protein that inhibits adipocyte differentiation. To better understand the origin and development of white adipose tissue (WAT), we generated transgenic mouse models for transient or permanent fluorescent labeling of cells using the Pref-1 promoter, facilitating inducible ablation. We show that Pref-1 marked cells retain proliferative capacity and are very early adipose precursors, prior to expression of Zfp423 or PPAR g. In addition, Pref-1 marked cells establish adipose precursors as mesenchymal, but not endothelial or pericyte in origin. During embryogenesis, Pref-1 marked cells first appear in the dorsal mesenteric region as early as E10.5. These cells become lipid-laden adipocytes at E17.5 in the subcutaneous region, whereas visceral WAT develops after birth. Finally, ablation of Pref-1 marked cells prevents not only embryonic WAT development but also later adult adipose expansion upon high fat feeding, demonstrating the requirement of Pref-1 cells for adipogenesis.
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