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中国临床药理学与治疗学 ›› 2009, Vol. 14 ›› Issue (2): 171-174.

• 基础研究 • 上一篇    下一篇

复方积雪草有效组分干预肾小管上皮细胞Toll样受体4表达的实验研究

朱晓玲1, 王永钧1, 杨汝春1, 林宜1, 俞东容1, 鲁盈1, 李可2, 周午丁2   

  1. 1浙江中医药大学附属广兴医院肾内科, 杭州310007, 浙江;
    2英国伦敦国王学院Guy's 医院肾脏病与移植中心, 伦敦SE1 9RT
  • 收稿日期:2008-08-29 修回日期:2009-02-02 出版日期:2009-02-26 发布日期:2020-10-30
  • 作者简介:朱晓玲, 女, 主任医师, 硕导, 研究方向:肾脏病学。Tel:0571-85827861  E-mail:zhuxiaolinghz@126.com。王永钧, 男, 教授, 主任医师, 博导, 研究方向:中西医结合肾病。Tel:0571-85827683  E-mail:yc0822@126.com
  • 基金资助:
    浙江省科技厅基金(2006C13114);杭州市科技局基金(2004433Q08)

Experimental study on effects of component from Centella asiatica on compound TLR4 in mice tubular epithelial cells stimulated by tumor necrosis factor α

ZHU Xiao-ling1, WANG Yong-jun1, YANG Ru-chun1, LIN Yi1, YU Dong-rong1, LU Ying1, LI Ke2, ZHOU Wu-ding2   

  1. 1Division of Nephrology, Guangxing AffiliatedHospital, Zhejiang University of Chinese TraditionalMedicine, Hangzhou 310007, Zhejiang, China;
    2Department of Nephrology &Transplantation, King's College, Guy's, King's and St Thomas'Medical School, Guy's Hospital, London SE1 9RT, UK
  • Received:2008-08-29 Revised:2009-02-02 Online:2009-02-26 Published:2020-10-30

摘要: 目的:探讨复方积雪草有效组分-积雪草苷/大黄素干预肿瘤坏死因子α(TNF-α) 诱导的小鼠肾小管上皮细胞(mTEC) Toll 样受体4 (TLR4)mRNA 及蛋白的表达水平。方法:采用mTEC, 模型组用TNF-α5 ng/mL 诱导, 治疗组在TNF-α诱导的同时, 以不同浓度的积雪草苷合大黄素进行干预, 于24 h 后分别提取细胞RNA 及上清, 应用逆转录-聚合酶链反应(RT-PCR) 和流式细胞术(FCM) 分别检测mTEC TLR4 mRNA 和膜蛋白的表达。结果:正常mTEC 具有TLR4 mRNA 和蛋白表达, 经TNF-α诱导后TLR4 表达明显上调, 当积雪草苷合大黄素干预浓度达4 μg/mL +0.4 μg/mL时, 能够抑制TLR4 mRNA 及蛋白的表达水平。结论:复方积雪草有效组分能够抑制TNF-α上调所致的肾小管上皮细胞TLR4 过度表达, 从而缓解肾脏局部失控性炎症反应。

关键词: 积雪草苷/大黄素, 小鼠肾小管上皮细胞, 肿瘤坏死因子α, Toll 样受体4

Abstract: AIM: To investigate the effects of component from Centella asiatica (centella asiatica & emodin) on toll like receptor 4 (TLR4) mRNA and protein in mice tubular epithelial cells (mTEC) stimulated by tumor necrosis factor α(TNF-α).METHODS: Cultured mTEC were exposed to TNF-α5 ng/mL and centella asiatica &emodin for 24 hours, followed by transcriptase-polymerase chain reaction (RT-PCR) and enzyme-linked flow cytometry (FCM) analysis for complement TLR4 mRNA and protein expression.RESULTS: TLR4mRNA and protein production were present in mTEC.TNF-αup-regulated TLR4 production in mTEC.Centella asiatica combined with emodin synergistically down-regulate TLR4 expression at a dose of 4 μg/mL and 0.4 μg/mL.CONCLUSION: Effective component from Centella asiatica component induced TLR4 stimulated by TNF-αin source of kidney local.

Key words: centella asiatica &emodin, mice tubular epithelial cells, tumor necrosis factor α, toll like receptor 4

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