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青藤碱对培养VSMC MAPK、PKC活性和细胞[Ca^(2+)]i的影响 被引量:1

青藤碱对培养VSMC MAPK、PKC活性和细胞[Ca^(2+)]i的影响
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摘要 目的:观察青藤碱对血管平滑肌细胞(VSMC)丝裂素活化蛋白激酶(MAPK)、蛋白激酶C(PKC)活性和胞内游离钙浓度([Ca2+i])的影响。方法:将VSMC正常培养液、ox-LDL诱导血管内皮细胞(VEC)损伤的条件培养基、青藤碱加ox-LDL诱导VEC损伤的条件培养基等分别作用于VSMC,采用β-放射活性法等测定MAPK及PKC活性,荧光光度法检测VSMC[Ca2+]i。结果:VEC损伤条件培养基作用于VSMC后,与正常培养VSMC相比,细胞MAPK、PKC活性明显增加(P<0.01),细胞[Ca2+]i增加;青藤碱作用于VEC损伤条件培养基培养的VSMC后,与模型组相比,MAPK及PKC活性明显减少(P<0.01)、细胞[Ca2+]i降低。结论:青藤碱抑制VSMC增殖的作用可能与拮抗MAPK、PKC活性和细胞[Ca2+]i的增加有关。
出处 《中国应用生理学杂志》 CAS CSCD 北大核心 2009年第2期154-155,206,共3页 Chinese Journal of Applied Physiology
基金 国家自然科学基金资助项目(39670245)
关键词 青藤碱 内皮细胞 平滑肌细胞 氧化低密度脂蛋白 Sinomenine endothelial cell smooth muscle cell oxidation low density lipoprotoin
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