A mechanosensitive transcriptional mechanism that controls angiogenesis.
A mechanosensitive transcriptional mechanism that controls angiogenesis.
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DOI:
10.1038/nature07765
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发表时间:
2009-02-26
期刊:
影响因子:
64.8
通讯作者:
Ingber, Donald E.
中科院分区:
文献类型:
--
作者:
Mammoto, Akiko;Connor, Kip M.;Mammoto, Tadanori;Yung, Chong Wing;Huh, Dongeun;Aderman, Christopher M.;Mostoslavsky, Gustavo;Smith, Lois E. H.;Ingber, Donald E.
Angiogenesis is controlled by physical interactions between cells and extracellular matrix as well as soluble angiogenic factors, such as VEGF. However, the mechanism by which mechanical signals integrate with other microenvironmental cues to regulate neovascularization remains unknown. Here we show that the Rho inhibitor, p190RhoGAP, controls capillary network formation in vitro and retinal angiogenesis in vivo by modulating the balance of activities between two antagonistic transcription factors – TFII-I and GATA2 – that govern gene expression of the VEGF receptor, VEGFR2. Moreover, this novel angiogenesis signaling pathway is sensitive to extracellular matrix elasticity as well as soluble VEGF. This is the first known functional cross-antagonism between transcription factors that controls tissue morphogenesis, and that responds to both mechanical and chemical cues.
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