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血管生成素及其受体与肿瘤的血管生成 被引量:7

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摘要 血管生成素 (Ang)家族是唯一含受体激动剂及抑制剂的促血管生成因子 ,编码四种结构相似的蛋白质 ,包括Ang 1,Ang 2 ,Ang 3和Ang 4 ,均能与内皮细胞上的酪氨酸激酶受体Tie 2结合 ,参与生理性及病理性的血管生成。Ang 1激活Tie 2 ,促进血管生成 ,维持血管稳定 ;Ang 2的作用呈VEGF依赖性 ,VEGF存在时 ,可促进血管出芽 ,VEGF缺乏时 ,则促进血管退化。Ang家族在不同的肿瘤中表达水平及分布形式不一。应用sTie 2或以Ang家族为靶标可抑制肿瘤性血管生成 ,对肿瘤的治疗有潜在的应用前景。
作者 张真真 张声
出处 《国外医学(生理病理科学与临床分册)》 2004年第2期159-162,共4页 Foreign Medical Sciences(Pathophysiology and Clinical Medicine)
基金 福建省自然科学基金资助项目 (C0 110 0 13 )
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