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miR-148b/DUSP1调节巨噬细胞分泌细胞因子CD206促进肝癌的发生

Journal of third military medical university(2016)

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Abstract
目的 探讨miR-148b/DUSP1信号通路调节巨噬细胞分泌细胞因子CD206的表达对肝癌发生的影响.方法 利用全自动磁珠提取纯化系统提取外周血单核细胞并培养,用粒细胞-巨噬细胞集落刺激因子(granulocyte-macrophage colony stimulating factor,GM-CSF)和巨噬细胞集落刺激因子(macrophage colony stimulating factor,M-CSF)分别诱导生成M1型和M2型巨噬细胞,CD68、CD206进行表型鉴定,ELISA检测M1和M2型巨噬细胞分泌的细胞因子CD206的表达,CCK-8和Transwell实验检测巨噬细胞分泌细胞因子CD206对肝癌细胞(HepG2和Huh7细胞)增殖、侵袭、转移的影响,双荧光素酶报告基因系统验证miR-148b与DUSP1的靶向结合.结果 初步分离并鉴定M1和M2型巨噬细胞,M2型巨噬细胞分泌的细胞因子CD206促进肝癌细胞的生长和侵袭、转移,双荧光素酶报告基因证实DUSP1为miR-148b的靶基因,miR-148b/DUSP1信号通路促进肝癌的发生、发展,巨噬细胞标志物与肝癌患者的临床病理特征相关.结论 miR-148b/DUSP1信号通路影响巨噬细胞分泌的细胞因子促进肝癌发生、发展.
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Key words
macrophage,miR-148b,DUSP1 signaling pathway,hepatocarcinoma
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