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肿瘤坏死因子相关凋亡诱导配体受体在肝细胞肝癌组织中的表达及其意义 被引量:1

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摘要 目的:探讨TRAILR在肝细胞肝癌(hepatocellular carcinoma,HCC)中的表达及其临床意义。方法:采用原位,杂交方法检测了60例肝癌组织,两种肝癌细胞株以及20例正常肝组织中TRAILR的表达,并结合临床资料进行分析。结果:60例肝癌组织及20例正常肝组织均表达死亡受体(death receptor,DR)DR5和DR4,但肝癌组织DR表达量显著强于正常肝组织DR表达量。54例肝癌组织不表达诱捕受体DcR1(90%),25例肝癌组织不表达DcR2(41.7%),而20例正常肝组织均表达DcR。肝癌组织中DR的高表达及DcR的低表达不同于正常肝组织中DR的低表达及DcR的高表达。两者间有显著差异性。两种肝癌细胞株中均检测到DR5,DR4,DcR2的表达。但DcR1表达缺失。HCC组织中DR的表达与肿瘤的分化。肿瘤分级有关。低分化的肿瘤DR表达减少(P<0.010。Ⅲ/Ⅳ期肿瘤DR的表达显著低于Ⅰ/Ⅱ级DR表达(P<0.05)。DR的表达与病人的性别,年龄,HBsAg阳性与否,AFP水平,肿瘤振奋小以及是否转移无关。肿瘤细胞耐药株DR表达降低。结论:HCC普遍存在TRAILR的表达,并存在受体类型的表达差异。DcR1的表达大多缺失有利于TRAILR治疗HCC。
出处 《中华临床医药杂志(北京)》 CAS 2003年第3期7-11,共5页
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