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T肽对树突细胞的协同作用及其对肾癌细胞抗肿瘤效应和免疫微环境的影响 被引量:4

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摘要 目的探究T肽对树突细胞(DC)的协同作用及其对肾癌细胞的抗肿瘤效应和免疫微环境的影响。方法 (1)将人DC的培养皿分为3组:A组人DC的培养皿加入生理盐水100μl,B组人DC的培养皿加入T肽50μg/100μl,C组人DC的培养皿加入脂多糖(LPS)50μg/100μl;使用流式细胞仪检测DC成熟度,并观察DC表面共刺激分子表达。(2)将人DC的培养皿分为两组:D组人DC的培养皿加入生理盐水100μl,F组人DC的培养皿加入T肽50μg/100μl;观察人DC分泌IL-12b的情况。(3)将人肾癌细胞的培养皿分为2组:E组人肾癌细胞的培养皿加入生理盐水100μl,F组人肾癌细胞加入人DC悬液100μl;D组人肾癌细胞加入T肽50μg/100μl和人DC悬液100μl;观察T肽协同DC对肾癌细胞的凋亡率,并且检测趋化因子CCL2、CCL5、CCL20、CCL22和CCL27的表达。结果 T肽促进DC的成熟,促进其表面共刺激分子表达水平上调;T肽可促进DC分泌IL-12b;T肽联合DC组对肿瘤细胞的抑制作用最强,差异有统计学意意义(P<0.05);DC组和T肽联合DC组对肾癌细胞免疫微环境的影响明显,而且T肽联合DC组对肾癌细胞免疫微环境的影响最明显(P<0.05)。结论 T肽对DC具有协同作用,且可增强DC的抗肿瘤效应和对免疫微环境的影响。
出处 《中国老年学杂志》 CAS CSCD 北大核心 2016年第5期1057-1059,共3页 Chinese Journal of Gerontology
基金 国家自然科学基金资助项目(81473638)
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参考文献10

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