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脂多糖对人脐静脉内皮细胞内皮细胞蛋白C受体和磷酸化P38表达的影响及参附注射液的干预作用 被引量:2

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摘要 目的:观察脂多糖(LPS)培养的人脐静脉内皮细胞内皮细胞蛋白C受体(EPCR)和磷酸化P38的表达,并探讨参附注射液对其的干预作用。方法:分别在12、24、48h采用逆转录聚合酶链反应(RT-PCR)、WesternBlot技术测定正常对照组、LPS组、参附组培养的人脐静脉内皮细胞EPCRmRNA、蛋白及磷酸化P38蛋白的表达。结果:与正常对照组比较,LPS(24、48h)组EPCRmRNA、EPCR蛋白含量均显著下降(均P<0.01);与LPS(24h)组比较,正常对照组、参附(12、48h)组EPCRmRNA、EPCR蛋白含量均明显增高(均P<0.01)。与正常对照组比较,LPS(24h)组磷酸化P38蛋白含量显著增高(P<0.01);与LPS(24h)组比较,正常对照组、LPS(12h)组、参附(12、48h)组磷酸化P38蛋白含量均明显下降(均P<0.01)。结论:LPS可以从转录、蛋白水平减少人脐静脉内皮细胞上EPCR的表达,可能是通过P38MAPK途径实现的;参附注射液可以调节LPS对人脐静脉内皮细胞上EPCR的表达的影响,从而对脓毒症起到防治作用。
出处 《实用医学杂志》 CAS 北大核心 2010年第6期919-921,共3页 The Journal of Practical Medicine
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