Objective: To evaluate the e?ect of the prepared leukemia vaccine on the cytotoxicity of macrophage of C57BL/6 mice. Methods: The model of mice bearing leukemia was established and three types of leukemia vaccine were prepared before they were administered on the mice respectively. The cy- totxicity of M? derived from the mice was measured after the active immunotherapy or prevention for 2–4 weeks later by using MTT colorimetric method and compared with the control group. Results: (1) With the growth of leukemia cells in the mice, the cytotoxicity of M? was seriously depressed; (2) The administration of leukemia vaccine prepared from inactivated leukemic cells, incomplete Freund’s adjuvant (IFA) and cytokines, such as rGM-CSF, rIL-2 and rIL-6, promoted the cellular immunity of mice bearing leukemia, more e?cient than leukemia vaccine from either inactivated leukemic cells and IFA or inactive leukemic cells per se. Conclusion: The leukemia vaccine prepared with inactive leukemic cells, IFA and cytokines could activate the non-speci?c cellular immunity such as M?, as well as, antigen present, immune surveillance and so on, and this activation constructed a base for further activate T lymphocyte. Naturally, this will certainly have a promising future in the therapy against hematopietic tumor.
目的:检测雌激素受体(ER)、孕激素受体(PR)阴性乳腺癌组织中连环蛋白P120(P120ctn)的表达,分析其与临床病理因素的关系。方法:采用免疫组织化学染色的方法对比分析了52例ER、PR阴性乳腺癌组织和23例癌旁正常乳腺组织及21例乳腺纤维腺瘤组织中P120ctn的表达。结果:52例ER、PR阴性乳腺癌组织中有32例P120ctn(61.53%)膜表达弱阳性或阴性表达,29例(52.76%)胞质表达阳性,总异常表达35例(67.30%)。21例乳腺纤维腺瘤组织中膜表达弱阳性6例(28.57%),胞质无表达。23例癌旁正常乳腺组织仅有2例为膜表达弱阳性(8.69%),其余均为胞膜正常表达。三者比较差异有显著性。29例组织分级Ⅰ～Ⅱ和23例组织分级Ⅲ中P120ctn的异常表达率分别为48.27% vs 78.26%(P<0.05);30例有淋巴结转移和22例无淋巴结转移的癌组织P120ctn的异常表达率分别为76.66% vs 40.90%(P<0.05);17例临床分期Ⅰ～Ⅱ和35例临床分期Ⅲ～Ⅳ组织中P120ctn的异常表达率分别为58.82% vs 65.71%(P>0.05)。P120ctn的异常表达与ER、PR阴性乳腺癌的组织学分级、淋巴结转移密切相关(P<0.05),与临床分期无关(P>0.05)。结论:P120ctn在ER、PR阴性乳腺癌的异常表达明显,可作为评估预后的一项有价值指标。
