白血病瘤苗对小鼠巨噬细胞作用的研究

Study on the macrophage of mice treated with the leukemia vaccine

目的 :探讨自制的一种白血病瘤苗对C5 7BL 6小鼠Mφ杀伤功能的影响。 方法 :建立白血病荷瘤小鼠模型 ,用自制的 3种不同的白血病瘤苗进行预防或主动免疫治疗 ,用MTT比色法检测预防或治疗 2周、4周后小鼠Mφ杀伤活性 ,并与对照组比较。结果 :(1)随着白血病细胞在小鼠体内的生长 ,小鼠的Mφ免疫功能受到严重抑制。 (2 )灭活肿瘤细胞 +IFA +细胞因子 (rGM CSF +rIL 2 +rIL 6 )的肿瘤疫苗在提高小鼠的Mφ免疫功能方面 ,优于灭活肿瘤细胞 +IFA肿瘤疫苗 ,而仅含灭活肿瘤细胞的疫苗作用不明显。结论 :灭活肿瘤细胞 +IFA +细胞因子 (rGM CSF +rIL 2 +rIL 6 )的肿瘤疫苗可以激活以Mφ为代表的非特异性细胞免疫功能 ,如非特异性细胞毒、免疫监视、抗原递呈等功能 ,为进一步活化T淋巴细胞打下基础 ,此种疫苗在血液恶性肿瘤的特异性主动免疫治疗中很有潜力。

Objective:To evaluate the cytotoxicity of macrophage of C57BL/6 mice treated with the prepared leukemia vaccine.Methods:Established the leukemia burden mice and prepared three types of leukemia vaccine,which were administered on the mice respectively.The MTT colormetric method was adopted 2 and 4 weeks later to measure the cytotxicity of Mφ derived from the mice accept immunotherapy or prevention,and compared with control group.Results:(1)With the growth of leukemia cells in the mice,the cytotoxicity of Mφ was seriously depressed;(2)The administration of tumor vaccine prepared from inactivated tumor cells,IFA and cytokines,such as rGM CSF,rIL 2 and rIL 6,promote the cellular immunity of tumor burden mice,more effciently than tumor vaccine made from either inactivated tumor cells and IFA or inactive tumor cells themselves along.Conclusion:The tumor vaccine simply prepared with inactive tumor cells,IFA and cytokines can active the non specific cellular immunity that represented as Mφ,for example non specific cytotoxicity,antigen present,immune surveillance and so on,these can build a base for active the T lymphocyte the next.The tumor vaccine provides a promising future in the therapy against hematopietic tumor.