蝉拟青霉总多糖对大鼠非特异性免疫调节作用的研究

目的：研究蝉拟青霉总多糖对机体的免疫调节作用。方法：200 mg/L的蝉拟青霉总多糖（PCTPS）臀部皮下注射处理17 d后，用常规方法测定大鼠外周血白细胞 (WBC)数；用生化方法测定脾脏与胸腺组织中的脂质过氧化物（LPO）和还原型谷胱甘肽（GSH）水平；10%小牛血清的RPMI-1640细胞培养液贴壁培养肺泡巨噬细胞（AMφ）2 h后，用全自动生化分析仪测定其中乳酸脱氢酶（LDH）与酸性磷酸酶（ACP）活性，并进行中性红吞噬试验。 结果：PCTPS组大鼠WBC数高于对照组（P<0.01）；脾脏、胸腺组织中GSH水平高于对照组（P<0.01、P<0.05），而胸腺组织中LPO水平低于对照组（P<0.05）；AMφ内LDH和ACP活性均强于对照组（P<0.01、P<0.01），对中性红摄取能力也高于对照组（P<0.01）。结论：PCTPS能提升WBC数；减少LPO的生成，维持GSH的含量，具有增强清除自由基的能力；并对AMφ具有激活作用。

Effects of paecilomyces cicadidae total polysaccharides on

AIM: To study the immune regulation of paecilomyces cicadidae total polysaccharides. METHODS: After subcutaneous injection with 200mg/L paecilomyces cicadidae total polysaccharides in the back of the rats fo17 days, the white blood cell (WBC) counts, and the levels of lipid peroxide (LPO) and reduced glutathione (GSH) in the spleen and thymus of rats were detected. The alveolar macrophages (AMφ) cultured with 10% fetal bovine serum-RPMI-1640 for 2 h in vitro, then the activity of lactate dehydrogenase (LDH) and acid phosphatase (ACP) were detected by automatic biochemistry analyzer, and the ability devouring neutral red in the AMφ were examined. RESULTS: Compared with control group, the WBC, the levels of GSH in the spleen and thymus, and the activities of LDH and ACP were significantly increased and the ability of devouring neutral red was also strengthened (P<0.01) in the AMφ of rats induced by paecilomyces cicadidae total polysaccharides, while the level of LPO in the thymus was obviously decreased (P<0.05). CONCLUSION: Paecilomyces cicadidae total polysaccharides has significant immune regulatory effect with increasing WBC and GSH.