药用真菌桑黄菌丝体多糖抗肿瘤作用的研究

目的：研究桑黄菌丝体多糖对小鼠S180实体瘤、腹水瘤的生长抑制作用和对荷瘤小鼠免疫调节作用。方法：将昆明种小鼠接种S180实体瘤或腹水瘤后随机分组,饲喂不同剂量(100,200,400 mg·kg^-1·d^-1)的桑黄菌丝体多糖,以饲喂生理盐水和环磷酰胺为空白对照组和阳性对照组。检测受试药物对小鼠S180实体瘤生长的抑制作用以及对荷瘤小鼠脾脏指数和胸腺指数的影响,计算腹水型荷瘤小鼠的存活时间。结果：饲喂桑黄菌丝体多糖的荷瘤小鼠的脾脏指数和胸腺指数显著增加；3个剂量的桑黄菌丝体多糖对S180实体瘤的抑瘤率分别为31.88%,46.25%,53.13%；并且可以显著延长腹水型荷瘤小鼠的存活时间。结论：桑黄菌丝体多糖具有较强的抗肿瘤作用和免疫调节活性。

Study on anti-tumor effect of medicinal fungi Phellinus igniariusextracts

OBJECTIVE: To study the inhibiting effect of medicinal fungi Phellinus igniarius extracts on S180 tumor and the immunoregulation effect on the S180-induced tumor mice. METHOD: S180 mice were orally given 100, 200, 400 mg x kg(-1) dosage of P. igniarius extracts, then the inhibition grow effect, spleen index, and thyme index were measured. RESULT: Medicinal fungi P. igniarius extracts can increase the spleen index and thyme index and the inhibiting tumor rate was 31.88%, 46.25%, 53.13%, respectively. Also, medicinal fungi P. igniarius extracts can prolong life in mice. CONCLUSION: The medicinal fungi P. igniarius extracts show obviously anti-tumor effect and immunoregulation effect.