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肝癌发展中FasL及其受体Fas/DcR3的表达分析
Authors
刘忠臣
庄国洪
+5 more
杨东海
程小峰
罗芳洪
范鑫
陈彩霞
Publication date
1 March 2010
Publisher
Abstract
目的研究小鼠肿瘤发生早期肿瘤坏死因子超家族成员FasL及其受体的表达特点,及其与免疫调节相关分子表达的时空关系,探讨其在诱导肿瘤免疫耐受中的作用。方法建立小鼠实体瘤模型,采用RT-PCR方法检测肿瘤组织中可溶型FasL、Fas及DcR3、TGF-β、IL-10在肿瘤发生不同时相的表达,同时,应用ELISA方法定量检测血清中TGF-β、IL-10的表达。结果在早期的肿瘤组织中,Fas的表达先于DcR3,其后DcR3大量表达,而Fas的表达则下调直至丢失,DcR3、FasL同时表达并上调,TGF-β和IL-10也随肿瘤的表达而上调。TGF-β同DcR3的表达具有空间位置的一致性。FasL、DcR3、TGF-β和IL-10的表达水平同肿瘤的生长呈正相关。结论随着肿瘤不断的生长,肿瘤局部的免疫应答逐渐趋向于负调节,FasL、DcR3在诱导肿瘤免疫耐受的过程中可能发挥着重要作用
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Last time updated on 16/06/2016