芍药苷对人外周血T淋巴细胞CD25、CD69及NF—KB表达的影响

目的研究芍药苷对人外周血T淋巴细胞CD25、CD69及NF—KB表达的影响。方法分离健康人外周血T淋巴细胞．抗人CD3单克隆抗体及抗人CD28单克隆抗体共刺激T淋巴细胞活化，加入不同浓度的芍药苷，流式细胞术检测T淋巴细胞CD25、CD69及NF—KB的表达。结果50Ixmol／L芍药苷对活化的T淋巴细胞CD25的表达有抑制作用（P〈O．05），100，200I,zmol／L芍药苷对活化的T淋巴细胞CD25的表达有明显抑制作用（P〈O．01）；100，200μmovL芍药苷对活化的T淋巴细胞CD69的表达有明显抑制作用（P〈0．01）；25，50，100，200μmol/L芍药苷对活化的T淋巴细胞NF—KB的表达有明显抑制作用（P〈0．01）。结论芍药苷可呈浓度依赖性抑制T淋巴细胞CD25、CD69及NF—KB的表达。

Effects of Paeoniflorin on Expression of CD25, CD69 and Nuclear Factor KB of Human Peripheral Blood T Lymphocytes

Objective To study the effects of paeoniflorin on expression of CD25, CD69 and nuclear factor KB （NF-KB） of human peripheral blood T lymphocytes. Methods Human peripheral blood T lymphocytes were isolated and activated by anti-CD3 mAb plus anti-CD28 mAb and co-incubated with paeoniflorin at various concentrations. The inhibition of paeoniflorin on expression of CD25, CD69 and NF-KB of T lymphocytes was analysed by flow cytometry. Results 50 Ixmol/L of Paeoniflorin inhibited expression of CD25 of activated human peripheral blood T lymphocytes（P〈0.05 ）. 100 I.Lmol/L and 200 I~mol/L of Paeoniflorin significantly inhibited expression of CD25 of activated human peripheral blood T lymphocytes（P〈0.01 ）. 100 I~mol/L and 200 ~mol/L of Paeoniflorin significantly inhibited expression of CD69 of activated human peripheral blood T lymphocytes （P〈0.01）. 25,50,100 and 200 pLmol/L of Paeoniflorin significantly inhibited NF-KB of activated human peripheral blood T lymphocytes （P〈0.01）. Conclusion Paeoniflorin inhibited expression of CD25,CD69 and NF-KB of human peripheral blood T lymphocytes after costimulated by anti-CD3 mAb plus anti-C28 mAb in a dose-dependent manner.