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经卡介苗活化的树突状细胞疫苗治疗胰腺癌的基础及临床运用展望——暨向2011年诺贝尔医学奖得主Ralph Steinman教授致敬

刘文佳 朱浩 吕瑛 李振磊 张松 裴庆山 邹晓平

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经卡介苗活化的树突状细胞疫苗治疗胰腺癌的基础及临床运用展望——暨向2011年诺贝尔医学奖得主Ralph Steinman教授致敬

详细信息
  • 中图分类号: R735.9

A fight for life Honoring Ralph Steinman′s memory through a preliminary study of in vitro and in vivo anti-tumor effects of BCG-activated dendritic cells

  • 摘要: 目的探讨经卡介苗(BCG)活化的树突状细胞(DC)疫苗体外直接抗胰腺癌细胞Panc02的机制,以及观察经不同部位注射DC疫苗抗小鼠胰腺癌移植瘤的效应。方法从C57BL/6小鼠骨髓中诱导培养DC,并予以BCG促成熟,用流式细胞技术检测DC成熟度,CCK-8细胞计数检测DC直接抑制Panc02增殖情况,流式细胞仪检测BCG促成熟DC表面凋亡诱导配体(TRAIL)的表达量。C57BL/6小鼠皮下接种Panc02胰腺癌细胞制成荷瘤小鼠,第7 d予以DC疫苗注射免疫治疗(DC疫苗为经Panc02细胞冻融抗原致敏后BCG促成熟的DC),分为3组:瘤内注射生理盐水组、皮下注射DC疫苗组和瘤内注射DC疫苗组,1周后再治疗1次,第2次治疗后15 d处死小鼠,观察不同治疗抗肿瘤的效果。结果 BCG活化后DC疫苗成熟度明显增加,其表型CD86表达增加;经BCG活化成熟的DC能直接抑制Panc02细胞生长,这一作用可被TRAIL抗体部分抑制,且流式细胞术检测发现成熟DC表面分子TRAIL明显高于未经BCG促成熟组未成熟DC。肿瘤体重:瘤内注射DC疫苗组<皮下注射DC疫苗组<瘤内注射生理盐水组(P&...

     

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