黄芪和雷公藤多甙对大鼠肾小球系膜细胞增殖及分泌IL-6影响的比较

目的]观察比较黄芪和雷公藤多甙对’肾小球系膜细胞增殖及其分泌白细胞介素6(IL-6)水平的影响【方法】应用细胞培养技术进行肾小球系膜细胞培养，采用血清药理学方法，制备黄芪舍药血清、雷公藤多甙含药血清．并分为低、中、高3个剂量梯度(5％、10％、20％)，观察含药血清对过度增殖状态下肾小球系膜细胞增殖和分泌IL-6的影响．应用四甲基偶氮唑盐(MTT)法测定系膜细胞增殖，酶标记免疫吸附分析法(ELISA)测定细胞IL-6含量。【结果】黄芪、雷公藤多甙含药血清各剂量组均可抑制大鼠肾小球系膜细胞的增殖，并能抑制肾小球系膜细胞产生IL-6，其抑制作用呈剂量效应关系，其中尤以雷公藤多甙高、中剂量组及黄芪高剂量组作用显著。【结论】在体外培养的肾小球系膜细胞处于过度增殖的状态下．黄芪能抑制肾小球系膜细胞增殖及分泌IL-6，其作用与雷公藤相仿，两药合用可减少雷公藤用量，可能具有增效减毒的作用。

Comparison of Effects of Radix Astragali and Triperygium Glucosides on Glomerular Mesangial Cells Proliferation and Interleukin-6 Secretion

Objective] To compare the effects of Radix Astragali (RA) and triperygium glucosides (TG) on glomerular mesangial cells (GMC) proliferation and interleukin-6 (IL-6) secretion. Methods] GMC were cultured with in-vitro cell culture technology. Serum containing RA and serum containing TG were prepared with serum pharmacological methods. GMC proliferation was detected by methylthiazolyltetrazolium (MTT) assay and IL-6 level by enzyme-linked immunosorbent assay (ELISA) to evaluate the effect of low-, moderate- and high-dosages of RA-containing serum and TG-containing serum under the condition of GMC over-proliferation. Results] Different dosages of RA-containing serum and TG-containing serum inhibited GMC proliferation and IL-6 secretion in a dose-effect manner, and the inhibitory effect of high- and moderate-dosage TG and high-dosage RA was stronger. Conclusion] Under the condition of in-vitro GMC over-proliferation, RA has the similar inhibitory effects on GMC proliferation and IL-6 secretion with TG. The combined treatment of RA and TG can reduce the dose of TG and probably has an action in increasing effect and reducing toxicity.