muramyl dipeptide and anti-CD10 monoclonal antibody immunoconjugate enhances anti-leukemia immunity of T lymphocytes
muramyl dipeptide and anti-CD10 monoclonal antibody immunoconjugate enhances anti-leukemia immunity of T lymphocytes
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作者：
王玲珍;张丽;王伶俐;卢愿;陈蕾;孙妍;赵红国;宋亮;孙立荣
It is necessary to completely eliminate minimal residual disease (MRD) to cure acute leukemia.Monoclonal antibodies (MAb).have been shown to be effective to eliminate MRD. In this study we aimed to investigate the effect of anti-CD10 MAb conjugated.to muramyl dipeptide immunoconjugate (MDP-Ab) on the function of lymphocytes and activated lymphocytes using.leukemia xenografts in nude mice as a model. Peripheral blood mononuclear cells were isolated from children with acute lymphoblastic.leukemia and induced into dendritic cells (DCs) and lymphocytes. Cytotoxic activity of lymphocytes was detected.by LDH release assay. Leukemia xenografts in nude mice were established to assess tumor growth. We found that the killing.rate was significantly higher in MDP-Ab group, LPS group and MDP-Ab+LPS group than in control group, and was the.highest in MDP-Ab+LPS group. Tumor-bearing mice inMDP-Ab group showed obvious coagulation necrosis. In conclusion,.our data suggest thatMDP-Ab could effectively prime DCs to improve the anti-tumor immunity of T lymphocytes and inhibit.the tumor growth. MDP-Ab may be used as suitable candidate for eliminating residual leukemia cells to prevent relapse.
