【摘 要】
：
目的 观察脂多糖(LPS)体外作用于大鼠肝星状细胞(HSC)时肿瘤坏死因子-α(TNF-α)和结缔组织生长因子(CTGF)表达变化,探讨TNF-α对LPS诱导的HSC中CTGF表达的影响.方法 用一步
【机 构】
：
广东深圳康哲医药研究(深圳)有限公司,广东深圳康哲药业有限公司,上海交通大学医学院附属仁济医院消化科上海市消化疾病研究所
论文部分内容阅读
目的 观察脂多糖(LPS)体外作用于大鼠肝星状细胞(HSC)时肿瘤坏死因子-α(TNF-α)和结缔组织生长因子(CTGF)表达变化,探讨TNF-α对LPS诱导的HSC中CTGF表达的影响.方法 用一步密度梯度离心法分离大鼠HSC,体外培养LPS处理HSC,逆转录-聚合酶链反应(RT-PCR)方法检测不同LPS浓度处理的HSC CTGF mRNA表达水平,并用ELISA双抗体夹心法测定TNF-α浓度.结果 TNF-α水平随LPS浓度增加而增加,LPS可上调CTGF mRNA的表达,TNF-α浓度及CTGF mRNA表达水平呈一定的平行关系.结论 LPS可上调HSC中CTGF mRNA表达,该过程可能是通过TNF-α介导的.
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