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免疫编辑前后细胞因子诱导的杀伤细胞分泌细胞因子水平及细胞毒活性的比较 被引量:1

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摘要 目的探讨免疫编辑前后细胞因子诱导的杀伤细胞(cytokine-induced killer,CIK)分泌细胞因子水平及细胞杀伤活性的变化。方法采用Ficoll密度梯度法提取脐血单个核细胞,定向诱导成CIK细胞,即免疫编辑前CIK细胞。Transwell小室共培养CIK细胞与人肺癌A549细胞,分离纯化CIK细胞即免疫编辑后CIK细胞。通过ELISA和MTT法分别检测免疫编辑前后CIK细胞分泌细胞因子水平及细胞毒活性的变化。结果CIK细胞与A549细胞共培养后,其分泌细胞因子IFN-γ和TNF-α的含量较共培养前CIK细胞显著下降(P<0.05),IL-2则略有降低。共培养后CIK细胞杀伤活性明显减弱(P<0.05)。结论CIK细胞与人肺癌A549细胞间存在免疫编辑作用,编辑后的CIK细胞分泌细胞因子水平及杀伤活性均下降。
出处 《第三军医大学学报》 CAS CSCD 北大核心 2010年第8期854-855,共2页 Journal of Third Military Medical University
基金 广州市卫生局资助项目(2009-YB-169)
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参考文献11

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