ANG, a Mr 14,200 protein originally isolated from medium conditioned by HT-29 human colon adenocarcinoma cells and subsequently from normal serum , is one of the most potent angiogenic factors in vivo .

• 血管生成素(Angiogenin,ANG)的分子量为14200,最初从人结肠腺癌细胞系HT-29条件介质中分离出来,随后发现正常血清中也含有ANG,它是体外最强的血管生成因子。