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酪氨酸蛋白激酶在β受体激动增加eNOS活性信号通路中的作用 被引量:1

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摘要 体外培养人脐静脉内皮细胞;采用同位素两步色谱法检测eNOS活性,观察PTK特异性阻断剂Ty-phostin23(T23,1×10-4mol/L)及其无活性衍生物Typhostin1(T1,1×10-4mol/L)与人脐静脉内皮细胞孵育10min,再与异丙肾上腺素(ISO,1×10-6mol/L)孵育30 min后eNOS活性变化。结果ISO与人脐静脉内皮细胞孵育30 min后eNOS活性明显增加(30.7±3.9)%,P<0.001;Typhostin23阻断PTK后,ISO诱导的eNOS活性增加受到明显抑制,P<0.001,而Typhostin1不影响ISO激活eNOS的程度(28.9±3.75)%,P>0.05。证实酪氨酸蛋白激酶参与了ISO激活eNOS活性的过程。
出处 《山东医药》 CAS 北大核心 2008年第2期38-40,共3页 Shandong Medical Journal
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