<Tr> <Td> plasminogen activators </Td> <Td> remodels extracellular matrix, releases and activates growth factors </Td> </Tr> <Tr> <Td> plasminogen activator inhibitor - 1 </Td> <Td> stabilizes nearby vessels </Td> </Tr> <Tr> <Td> eNOS and COX - 2 </Td> <Td> </Td> </Tr> <Tr> <Td> AC133 </Td> <Td> regulates angioblast differentiation </Td> </Tr>

Production of new blood vessels from previously existing ones occurs