Tumor angiogenesis As tumors grow, regions of relative hypoxia develop as the oxygen supply is unevenly utilized by the tumor cells. The formation of new blood vessels is necessary for continued tumor growth, and is also an important factor in metastasis, as the route by which cancerous cells are transported to other sites.
Tumor angiogenesis .As tumors grow, region,s of relative hypoxia develop as the oxygen supply is u!nevenly utilized by the tumor cells. The formation of new blood vessels is necessary for continued tumor growth, and is also an important factor in! metastasis, as the route by which cance?rous cells are transported to other sites.