Journal
COLD SPRING HARBOR PERSPECTIVES IN MEDICINE
Volume 1, Issue 1, Pages -Publisher
COLD SPRING HARBOR LAB PRESS, PUBLICATIONS DEPT
DOI: 10.1101/cshperspect.a006478
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Funding
- NIH [CA50286, CA104898, CA45726, HL57900]
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During angiogenesis, alpha v integrins are overexpressed on the endothelial cell surface to facilitate the growth and survival of newly forming vessels. Accordingly, blocking av integrin function by disrupting ligand binding can produce an antiangiogenic effect. Although the integrin ectodomain regulates ligand binding specificity, the short cytoplasmic tail facilitates intracellular signaling pathways through the recruitment and activation of specific kinases and signaling intermediates. This in turn controls endothelial cell adhesion, morphology, migration, invasion, proliferation, and survival. These same integrin-mediated signaling pathways are exploited in cancer to promote the invasiveness and survival of tumor cells and to manipulate the host microenvironment to provide ample blood vessel and stromal resources to support tumor growth and metastatic spread. Because expression of alpha v integrins on distinct cell types contributes to cancer growth, av integrin antagonists have the potential to disrupt multiple aspects of disease progression.
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