白首乌多糖-1a的免疫调节作用研究

目的:研究白首乌多糖(PRCB)组分PRCB1a体外对兔T淋巴细胞转化及体内对正常小鼠免疫功能的影响。方法:将PRCB1a分为2,4,6 g.L^-13个剂量组,分别加入含有兔血的营养瓶内,PHA体外诱导,通过观察T淋巴细胞的转化情况,研究该多糖体外免疫功能状况;将PRCB1a分为3个剂量(150,100,50 mg.kg^-1.d^-1),连续给小鼠ig 7 d,并进行小鼠体内免疫功能调节作用的测试。结果:PRCB1a各剂量组,均能极显著地(P<0.01)促进PHA诱导的家兔T淋巴细胞在体外的增殖能力;PRCB1a并能显著增强小鼠的胸腺和脾脏指数、巨噬细胞的吞噬功能、增强小鼠迟发型超敏反应、加速碳粒的清除。结论:提示白首乌多糖能提高小鼠的非特异性和特异性细胞免疫功能。

Studies on immunoregulation of polysaccharides-1a from Radix Cynanchi Bungei

Objective: To study the effects of PRCB1a(one component of polysaccharides from Radix Cynanchi Bungei)on transformation of T lymphocytes of rabbit in vitro and immune function in mice. Method: Three doses of PRCB1a (2,4,6 g·L^-1) were respectively put in bottle with PHA and blood of rabbit. The effect of PRCB1a on immunity in vitro was studied by observing transformation of T lymphocytes; The dosage of PRCB1a (50,100,150 mg·kg^-1·d^-1) was given orally for seven days. The effects on immune function were investigated in mice. Result: Three doses of PRCB1a could significantly promote (P<0.01) the ability of T lymphocytes proliferation; PRCB1a could improve the mouse thymus and spleen index, the celiac macrophage ability of engulfing CRBC, the delayed type hypersensitivity ability and the macrophage engulfing carbon granula ability. Conclusion: The results indicate PRCB1a can enhance nonspectific and specific cellular immune function.