Differential functions of genes regulated by VEGF-NFATc1 signaling pathway in the migration of pulmonary valve endothelial cells.

Differential functions of genes regulated by VEGF-NFATc1 signaling pathway in the migration of pulmonary valve endothelial cells.
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由VEGF-NFATC1信号通路调节的基因的差异功能在肺动脉瓣内皮细胞的迁移中。

DOI:
10.1016/j.febslet.2009.11.031
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发表时间:
2010-01-04
期刊:
影响因子:
3.5
通讯作者:
Lee YM
Lee YM
中科院分区:
生物学3区
文献类型:
--
作者:
Jang GH;Park IS;Yang JH;Bischoff J;Lee YM

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我们报道 VEGF-A 通过 NFATc1 激活诱导人肺动脉瓣内皮细胞 (HPVEC) 增殖。在这里,我们发现 VEGF-A 通过 NFATc1 激活增加人肺动脉瓣内皮细胞 (HPVEC) 的迁移,表明 VEGF-A/NFATc1 调节 HPVEC 的迁移。为了了解该通路如何参与产后瓣膜修复,用 VEGF-A(联合或不联合环孢素 A)处理 HPVEC,以选择性阻断 VEGF-NFATc1 信号传导。 DSCR1 和 HB-EGF 是通过 DNA 微阵列鉴定的两个基因,其表达以环孢素 A 敏感的方式被 VEGF-A 上调。沉默 DSCR1 会增加 HPVEC 的迁移,而沉默 HB-EGF 则会抑制迁移。这种差异效应表明 VEGF-A/NFATc1 信号传导可能是产后瓣膜内皮细胞迁移的关键协调者。
We reported that VEGF-A induces proliferation of human pulmonary valve endothelial cells (HPVEC) through NFATc1 activation. Here we show that VEGF-A increases the migration of human pulmonary valve endothelial cells (HPVEC) through NFATc1 activation, suggesting that VEGF-A/NFATc1 regulates migration of HPVECs. To learn how this pathway may be involved in post-natal valvular repair, HPVECs were treated with VEGF-A, with or without cyclosporine A, to selectively block VEGF-NFATc1 signaling. DSCR1 and HB-EGF were two genes, identified by DNA microarray, whose expression was up-regulated by VEGF-A in a cyclosporine-A-sensitive manner. Silencing DSCR1 increased migration of HPVECs whereas silencing HB-EGF inhibited migration. This differential effect suggests that VEGF-A/NFATc1 signaling might be a crucial coordinator of endothelial cell migration in post-natal valves.
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