The growth,infiltration and metastasis of oncoma depend on tumor angiogenesis.Vascular endothelial growth factor(VEGF)is the most important irritant factor of angiogenesis.

• 肿瘤的生长、浸润和转移依赖于肿瘤血管生成,血管内皮生长因子(VEGF)是最重要的一种血管生成刺激因子。