首页> 中文期刊> 《中国医科大学学报》 >氧化型甘露聚糖修饰的肿瘤细胞疫苗诱导CTL的抗肿瘤免疫效果评价

氧化型甘露聚糖修饰的肿瘤细胞疫苗诱导CTL的抗肿瘤免疫效果评价

         

摘要

Objective To study to take the oxidized Mannan⁃modified 786⁃0 in renal clear cell carcinom as tumor cells antigen to sensitize Dendrit⁃ic cells(DC)and to observe the its killing effect on renal clear cell carcinoma of CTLs induced. Methods Getting the peripheral blood mononucle⁃ar cells from the volunteers,and then to be stimulated to turn to be maturation by GM⁃CSF and IL⁃4 in vitro. Taking the clear renal carcinoma cell as the tumor antigen,and then making it to be modified by oxidized Mannan to acquire the tumor cell vaccine.Experimental groups include:blank group:DC⁃PBS group,control group:control⁃DC⁃786⁃0,experimental group:DC⁃Ox⁃Mannose⁃786⁃0 group. Taking the flow cytometry to detect the changes of DC phenotype,then taking the ELISA to detect the sencretion levels of supernatant of IL⁃12 of DC,then taking the CCK to detecte the cytotoxicity of lymphocytes(CTL)induced by DC of these experiment groups. Results Results by flow cytometry:the mature phenotype of DCs sensitized by Ox⁃Mannose⁃786⁃0 group included CD80,CD83,CD86 and HLA⁃DR expressed significantly higher than the other groups. As well as the secretion levels of IL⁃12. Meanwhile the cytotoxicity activity of lymphocytes(CTLs)induced by DCs which are sensitized by Ox⁃Mannose⁃786⁃0 increased more significantly than the other groups. Conclusion Glycosylated Antigens can be more effective in sensitizing antigen⁃presenting cells DC,and stimulating them to be maturation,while the killing effect to tumor cells also have noticeably improved.%目的:研究将氧化型甘露聚糖修饰的肾透明细胞癌细胞786⁃0作为肿瘤细胞抗原致敏树突状细胞(DC),观察其诱导产生的CTL对肾透明细胞癌的杀伤作用。方法分离健康志愿者外周血单个核细胞,体外经GM⁃CSF和IL⁃4刺激DC成熟。以肾癌786⁃0整个细胞作为肿瘤抗原,并制备成氧化型甘露聚糖肿瘤细胞疫苗。实验分组:空白组(DC⁃PBS组),对照组(Control⁃DC⁃786⁃0融合瘤苗组)、实验组(DC⁃Ox⁃Mannose⁃786⁃0融合瘤苗组)。流式细胞术检测各组DC表型的变化情况,ELISA法检测各组DC上清IL⁃12的分泌水平,CCK⁃8法检测各组DC诱导的细胞毒性T淋巴细胞(CTLs)对肾癌细胞786⁃0的杀伤效果。结果经流式细胞仪分析检测:DC⁃Ox⁃M⁃786⁃0组DC表面成熟标志CD80、CD83、CD86、HLA⁃DR的表达水平明显高于Control⁃DC⁃786⁃0组及DC⁃PBS组,ELISA法测得实验组IL⁃12的分泌水平也明显高于Control⁃DC⁃786⁃0组和DC⁃PBS组,与此同时DC⁃Ox⁃M-786⁃0组诱导的各组细胞毒性T淋巴细胞(CTLs)杀瘤活性较Control⁃DC⁃786⁃0组、DC⁃PBS组均明显增强。结论氧化型甘露聚糖化抗原能更为有效的致敏DC,并刺激其成熟,增强其抗原递呈功能,与此同时对于肿瘤细胞的杀伤作用也有明显的提高。

著录项

  • 来源
    《中国医科大学学报》 |2015年第5期|420-424|共5页
  • 作者单位

    中国医科大学附属第一医院肿瘤研究所生物治疗研究室;

    沈阳 110001;

    中国医科大学附属第一医院肿瘤研究所生物治疗研究室;

    沈阳 110001;

    中国医科大学附属第一医院肿瘤研究所生物治疗研究室;

    沈阳 110001;

    中国医科大学附属第一医院肿瘤研究所生物治疗研究室;

    沈阳 110001;

    中国医科大学附属第一医院肿瘤研究所生物治疗研究室;

    沈阳 110001;

    中国医科大学附属第一医院肿瘤研究所生物治疗研究室;

    沈阳 110001;

    中国医科大学附属第一医院肿瘤研究所生物治疗研究室;

    沈阳 110001;

  • 原文格式 PDF
  • 正文语种 chi
  • 中图分类 泌尿生殖器肿瘤;
  • 关键词

    肾透明细胞癌; 树突状细胞; 甘露糖受体;

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