BMP4 regulates vascular progenitor development in human embryonic stem cells through a Smad-dependent pathway.

BMP4 regulates vascular progenitor development in human embryonic stem cells through a Smad-dependent pathway.
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DOI:
10.1002/jcb.22410
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发表时间:
2010-02-01
影响因子:
4
通讯作者:
Wang, Zack Z.
Wang, Zack Z.
中科院分区:
生物学2区
文献类型:
--
作者:
Bai, Hao;Gao, Yongxing;Arzigian, Melanie;Wojchowski, Don M.;Wu, Wen-shu;Wang, Zack Z.

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The signals that direct pluripotent stem cell differentiation into lineage-specific cells remain largely unknown. Here, we investigated the roles of BMP on vascular progenitor development from human embryonic stem cells (hESCs). In a serum-free condition, hESCs sequentially differentiated into CD34+CD34−, CD34+CD31+, and then CD34−CD31+; cells during vascular cell development. CD34+CD31+ cells contained vascular progenitor population that gives rise to endothelial cells and smooth muscle cells. BMP4 promoted hESC differentiation into CD34+CD31+ cells at an early stage. In contrast, TGFβ suppressed BMP4-induced CD34+CD31+ cell development, and promoted CD34+CD34− cells that failed to give rise to either endothelial or smooth muscle cells. The BMP-Smad inhibitor, dorsomorphin, inhibited phosphorylation of Smad1/5/8, and blocked hESC differentiation to CD34+CD31+ progenitor cells, suggesting that BMP Smad-dependent signaling is critical for CD34+CD31+ vascular progenitor development. Our findings provide new insight into how pluripotent hESCs differentiate into vascular cells.
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