A Mechanosensitive Transcriptional Mechanism That Controls Angiogenesis

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A Mechanosensitive Transcriptional Mechanism That Controls Angiogenesis

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Title: A Mechanosensitive Transcriptional Mechanism That Controls Angiogenesis
Author: Mammoto, Akiko; Connor, Kip; Mammoto, Tadanori; Yung, Chong W.; Huh, Dongeun; Aderman, Christopher Michael; Mostoslavsky, Gustavo; Smith, Lois Elaine Hodgson; Ingber, Donald Elliott

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Citation: Mammoto, Akiko, Kip M. Connor, Tadanori Mammoto, Chong Wing Yung, Dongeun Huh, Christopher Michael Aderman, Gustavo Mostoslavsky, Lois Elaine Hodgson Smith, and Donald Elliott Ingber. 2009. A mechanosensitive transcriptional mechanism that controls angiogenesis. Nature 457(7233): 1103-1108.
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Abstract: 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 (also known as GRLF1), controls capillary network formation in vitro in human microvascular endothelial cells and retinal angiogenesis in vivo by modulating the balance of activities between two antagonistic transcription factors, TFII-I (also known as GTF2I) and GATA2, that govern gene expression of the VEGF receptor VEGFR2 (also known as KDR). Moreover, this new angiogenesis signalling pathway is sensitive to extracellular matrix elasticity as well as soluble VEGF. This is, to our knowledge, the first known functional cross-antagonism between transcription factors that controls tissue morphogenesis, and that responds to both mechanical and chemical cues.
Published Version: doi:10.1038/nature07765
Other Sources: http://www.ncbi.nlm.nih.gov/entrez/utils/fref.fcgi?PrId=3494&itool=Abstract-nondef&uid=19242469&nlmid=0410462&db=pubmed&url=http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pubmed&pubmedid=19242469
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:3622234
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