目的：研究通关藤苷H对小鼠Lewis肺癌的抑制作用,观察其对荷瘤小鼠免疫功能的影响。方法小鼠右腋皮下注射Lewis肺癌细胞,选取接种成功的荷瘤小鼠30只,随机分为模型组、环磷酰胺组、通关藤苷H组,每组10只。3组均从接种后第3日开始,每隔2d,分别给予腹腔注射生理盐水、环磷酰胺、通关藤苷H,0.2mL/只。第21日,摘眼球取血,取肿瘤组织、脾、胸腺并分别称重,计算抑瘤率、脾指数和胸腺指数；采用ELISA法检测血清中白细胞介素-2(IL-2)、白细胞介素-10(IL-10)的含量。结果环磷酰胺组、通关藤苷H组的瘤质量均低于模型组,差异有统计学意义(P＜0.05),抑瘤率分别为54.12%、25.68%；通关藤苷H组的胸腺指数与脾指数升高,环磷酰胺组则下降较为显著。ELISA法检测结果显示,与模型组比较,通关藤苷H组的IL-2水平明显升高,IL-10水平显著降低。结论通关藤苷H可以抑制Lewis肺癌细胞生长和转移,调节免疫细胞因子IL-2、IL-10的表达水平,提高荷瘤小鼠的免疫功能。%Objective To study the anti-tumor effect of tenacissoside H on Lewis lung cancer mice, and explore its impacts on immune function of tumor-bearing mice. Methods Mice was injected Lewis lung cancer cells subcutaneously to the right axilla. Thirty successful tumor-bearing mice were randomly divided into model group, the cyclophosphamide (CTX) group and tenacissoside H group, 10 mice in each group. Three days after inoculation, mice were intraperitoneally injected by normal saline, CTX and tenacissoside H respectively every two days, 0.2 mL in each mouse. On the 21st day, the eyeballs were extracted and blood was drawn, tumor tissue, spleen and thymus were taken and weighted to calculate tumor inhibition rate, spleen index and thymus index, and the contents of IL-2 and IL-10 were detected by ELISA. Results The tumor weights of CTX group and tenacissoside H group were lower than that of the model group with significant difference (P<0.05), and the tumor inhibition rates were 54.12%, 25.68%. The thymus index and spleen index of tenacissoside H group increased, but that of CTX group decreased significantly. Compared with the model group, the IL-2 level of tenacissoside H group was significantly increased, while the IL-10 level decreased. Conclusion Tenacissoside H can inhibit growth and metastasis of Lewis lung cancer, regulate the expression of IL-2 and IL-10, and improve the immune function of tumor-bearing mice.
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