肝癌组织、外周血细胞磷脂酰肌醇蛋白聚糖3 mRNA表达的意义

被引：3

作者：

李宝定 ^{[1
]}

赵青川 ^{[1
]}

祝仰廷 ^{[2
]}

张福琴 ^{[1
]}

窦科峰 ^{[1
]}

机构：

[1] 第四军医大学西京医院肝胆外科

[2] 第四军医大学遗传与发育生物学教研室

来源：

中华外科杂志 | 2006年 / 07期

关键词：

癌,肝细胞; 核糖核酸; 肿瘤转移; 磷脂酰肌醇蛋白聚糖3; 甲胎蛋白;

D O I：

暂无

中图分类号：

R735.7 [肝肿瘤];

学科分类号：

100214 ;

摘要：

目的探讨磷脂酰肌醇蛋白聚糖3(GPC3)mRNA表达对肝细胞肝癌(HCC)及其血液微转移的诊断价值。方法参照甲胎蛋白(AFP)mRNA,半定量与巢式逆转录聚合酶链反应(RT-PCR)检测41例HCC、41例癌旁组织、52例非瘤肝组织(41例远离癌灶组织与11例正常肝组织)及67例外周血的GPC3表达。结果半定量PCR显示组织与外周血细胞全部存在GPC3 mRNA表达,HCC、癌旁、非瘤肝组织的表达量分别为78.9±35.5、30.6±21.6、23.8±15.5;而AFP mRNA的表达量依次为61.2±32.6、31.5±23.6、21.2±15.9。各基因在HCC与其他组织中的表达量差异具有统计学意义(P<0.01),以各基因在非瘤肝的相对表达量上限(x-+1.96s)为界,HCC中GPC3 mRNA和AFP mRNA的高表达分别占80.5%与63.4%;至少一个基因高表达HCC达总数的92.7%,与AFPmRNA单独检测差异有统计学意义(P<0.01)。临床病理特征分析发现AFP mRNA与HCC分级及血清AFP浓度有关,GPC3 mRNA表达与HCC分级及侵袭性有关。67例外周血GPC3 mRNA的表达量为15.9±9.0,各类组织中GPC3 mRNA表达均强于相应的外周血表达(P<0.01)。外周血GPC3mRNA表达量在HCC组、非HCC组分别为16.1±8.3、15.6±10.2,组间差异无统计学意义;在HCC转移组、HCC无转移组的表达量各为16.0±9.0、16.3±7.7,组间差异无统计学意义。巢式PCR显示,AFP mRNA表达比率在HCC组与非HCC组各为56.1%、23.1%,组间差异有统计学意义(P=0.011);HCC转移组与无明显转移组各为80.9%、30.0%,组间差异有统计学意义(P=0.002)。结论GPC3 mRNA是潜在的HCC组织诊断指标,与AFP mRNA有明显的互补作用,两者联合检测可提高HCC的阳性检出率;外周血存在GPC3 mRNA的广泛表达,但其与HCC的转移复发无关,不能用于HCC微转移的检测。

引用

页码：458 / 462

页数：5

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