PDGFRβ signaling regulates mural cell plasticity and inhibits fat development.
PDGFRβ signaling regulates mural cell plasticity and inhibits fat development.
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DOI:
10.1016/j.devcel.2011.04.019
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发表时间:
2011-06-14
影响因子:
11.8
通讯作者:
Soriano, Philippe
中科院分区:
文献类型:
--
作者:
Olson, Lorin E.;Soriano, Philippe
Mural cells (pericytes and vascular smooth muscle cells) provide trophic and structural support to blood vessels. Vascular smooth muscle cells alternate between a synthetic/proliferative state and a differentiated/contractile state, but the dynamic states of pericytes are poorly understood. To explore the cues that regulate mural cell differentiation and homeostasis, we have generated conditional knock-in mice with activating mutations at the PDGFRβ locus. We show that increased PDGFRβ signaling drives cell proliferation and downregulates differentiation genes in aortic vascular smooth muscle. Increased PDGFRβ signaling also induces a battery of immune response genes in pericytes and mesenchymal cells, and inhibits differentiation of white adipocytes. Mural cells are emerging as multipotent progenitors of pathophysiological importance, and we identify PDGFRβ signaling as an important in vivo regulator of their progenitor potential.
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