Angiogenesis Models Identify Factors Which Regulate Endothelial Cell Differentiation
During development, blood vessels are rapidly formed from angioblasts in the mesoderm. This is followed by extensive branching of the vessels to supply the needs of the growing tissue. In the adult, however, vessels form a complex and stable network providing a transit-way for blood cells, oxygen, growth factors, hormones, etc., to all tissues. Usually changes in the vasculature occur only in response to injury stimulation, or cyclic changes in the female reproductive system. When induced to become angiogenic, the endothelial and smooth muscle cells enter a migratory and proliferative phase resulting in a reorganization of the vessel wall and the formation of new blood vessels. This involves a cascade of sequential events leading to endothelial cell invasion into the underlying stroma, and the formation of new blood vessels leading away from the parent vessel towards the stimulus 1,2 .
KeywordsHepatocyte Growth Factor Tube Formation Vascular Endothelial Cell Growth Factor Basement Membrane Component Matrigel Plug
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