[关键词]
[摘要]
目的: 探讨来氟米特对转化生长因子-β1刺激的大鼠肾小球系膜细胞( GMCs) 增殖及细胞外基质
( ECM) 分泌的影响。方法: 体外培养大鼠肾小球系膜细胞,分正常对照组,TGF-β1( 5 ng /mL) 刺激组,TGF-β1 +
LEF( LEF 浓度分别为5μmol /L、25μmol /L、50μmol /L、100μmol /L) 组,培养24h、48h 和72h 后,MTT 法观察各组
肾小球系膜细胞在不同时间点的增殖情况; ELISA 法测定各组培养细胞上清液中纤连蛋白的含量。结果: ( 1) 与
对照组相比,TGF-β1可刺激系膜细胞增殖,不同浓度的LEF 均可以抑制TGF-β1刺激的系膜细胞增殖( P<0.05) ,48h 后抑制作
用稳定。( 2) TGF-β1刺激组细胞上清液中纤连蛋白含量明显高于对照组( P<0.05) ,不同浓度的LEF 组纤连蛋白含量明显低于TGF-β1
组( P<0.05) 。结论: 来氟米特可以抑制TGF-β1刺激的肾小球系膜细胞的增殖,减少细胞外基质的分泌,为其治疗慢性肾脏病提供理论依据。
[Key word]
[Abstract]
Objective: This study is to discuss the effects of Leflunomide on proliferation and synthesis
of extracellular matrix in rat renal mesangial cells stimulated with transforming growth factor-betal.
Methods: GMCs were cultured in vitro.Experiment groups: Normal control group,TGF-β1
( 5 ng /mL) -stimulated group,TGF-β1 plus LEF( concentrations: 5μmol /L, 25μmol /L,50μmol /L,100μmol /
L) group.Inhibitions of proliferations of GMCs were analyzed by MTT assay at 24h,48h and 72h.The
expressions of fibronectin were analyzed by enzyme linked immunosorbent assay( ELISA) .Results: ( 1)
Comparison with the normal control group, the TGF-β1 can stimulate the proliferation of GMCs,and all
concentrations of LEF could inhibit the proliferation of GMCs which is stimulated by TGF -β1
( P <0.05) .Te effect reached the maxlmum at 48h.( 2) With the stimulation of TGF-β1
, the expression of fibronectinwere markly increased( P<0.05) .It could decreased by the treatment of different concentrations
LEF( P<0.05) .Conclusion: LEF could inhibit the proliferation of GMCs by stimulated with TGF-
[中图分类号]
R58
[基金项目]
收稿日期: 2017-03-03; 修回日期: 2017-06-03
基金项目: 国家自然基金项目( 81360245)
作者简介: 潘雪( 1985-) ,女,蒙古族,内蒙古医科大学附属医院医师,医学硕士。
通讯作者: 智淑清,主任医师,教授,E-mail: nmgzsq_ok@ 126.com 内蒙古医科大学附属医院肾内科, 010050