扶正抗白冲剂对微小残留白血病模型小鼠免疫功能及生存期的影响

目的：研究扶正抗白冲剂（FZKBG）对实验小鼠免疫功能及生存期的影响，探讨FZKBG治疗微小残留白血病（MRL）的机理。方法：接种L7212细胞1×10^6／只，接种后第3天腹腔注射环磷酰胺250mg/kg，造成MRL模型上鼠，分成模型对照组、模型给药组，另设正常对照组、正常给药组，分别观察各组小鼠淋巴细胞亚群（CD3^＋、CD4^、CD8^+）改变，免疫器官病理变化和生存期。结果：与模型组比较，FZKBG能明显提高正常小鼠和MRL模型小鼠CD3^＋、CD4^、CD8^＋的百分比和绝对值（P＜0.05,P<0.01)。且明显延长MRL模型小鼠存活期，延长生命率29.6%-60.4%。结论：FZKBG能明显延长MRL模型小鼠存活期，其机理可能是通过提高MRL模型小鼠的免疫功能，抑制体内白血病细胞而实现的。

Effect of Fuzheng Kangbai Granule on Immune Function and Survival Time in Minimal Residual Leukemia Model in Mice

OBJECTIVE: To observe the effects of Fuzheng Kangbai Granule (FZKBG) on immune function and survival time in minimal residual leukemia (MRL) model mice and study its mechanism. METHODS: MRL model mice were established by hypodermic inoculation with L7212 cells following intraperitoneal injection of cytoxan (CTX) 25 mg/kg 3 days later, and divided into the control group and FZKBG group. The changes of T-lymphocyte subsets, including CD3+, CD4+ and CD8+, and the survival time in model mice were observed. RESULTS: Comparing with the control group, FZKBG could obviously increase both the percentage and absolute value of CD3+ and CD4+ lymphocytes and prolong the survival time of model mice, the prolongation rate being 29.6%-60.4%. CONCLUSION: FZKBG could markedly prolong the survival time of MRL mice, its mechanism might be through elevating the immune function and inhibiting the leukemic cells in model mice.