Study on the effect of anti-leukemia in C57BL/6 mice that receive immune reconstitution / 中国免疫学杂志

ABSTRACT

Objective:To observe the general status, the effect of resisting to the aggression of FBL-3 cells and protective immunity of the mice by using leukemia vaccine during the immune reconstitution.Methods:The immune deficiency C57BL/6 mice induced by total body irradiation were reconstituted immunity with homologous splenic lympocytes.The mice were immunized by injecting FBL-3 cells subcutaneously,and then attacked by using FBL-3 cells 7days thereafter.The activities of mice,the percentage of carcinoma formation and the growth status of tumor were observed.The amount of IFN-? in peripheral blood was determined by ELISA to evaluate the magnitude of cell immunity.The condition of cell infiltration in tumor central region and its periphery region was explored by patologic-section.Results:Immune reconstitution could obviously elevate protective immunity on the basis of using vaccine,and the amount of IFN-? was obviously higher.The FBL-3 tumors inoculated thereafter grwe slowly,and significant infiltration of mononuclear cells peri-tumor as well as necrosis of tumor cells were observed.Also,the life time of the mice was prolonged.Conclusion:Immune reconstitution and vaccine can significantly elevate protective immunity