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IL-2和GM-CSF表达质粒对pcDNA3/MDC-VP1 DNA疫苗作用的比较

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摘要 目的:比较IL-2与GM-CSF两种细胞因子对pcD-NA3/MDC-VP1DNA疫苗免疫的免疫增强效果。方法:4~6周龄雄性BALB/c小鼠随机分成pcDNA3组、pcDNA3/MDC-VP1组、pcDNA3/MDC-VP1与pcDNA3/hIL-2混合注射组、pcDNA3/MDC-VP1与pcDNA3/mGM-CSF混合注射组,每组10只。每3周接种1次,共3次。每次接种后的第20天眼眶采血,用微量中和试验(固定病毒-稀释血清法)检测血清中和抗体效价。第3次免疫后3周,每组取3只小鼠脾脏制备淋巴细胞悬液,检测淋巴细胞增殖活性与特异性细胞毒性T淋巴细胞(CTL)杀伤活性。结果:pcDNA3/MDC-VP1+pcDNA3/mGM-CSF组的血清中和抗体滴度明显提高,小鼠脾脏淋巴细胞增殖活性和特异性CTL杀伤活性均有增强。结论:GM-CSF作为本疫苗分子佐剂能诱导小鼠产生较强的体液和细胞免疫,免疫效果优于IL-2。
作者 李琳 王永祥
出处 《细胞与分子免疫学杂志》 CAS CSCD 北大核心 2009年第12期1196-1198,共3页 Chinese Journal of Cellular and Molecular Immunology
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