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1、环氧化酶在宫颈癌中的表达及其临床意义作者:毕慧玲田秀珠王全红【摘要】目的:研究环氧化酶(COX)在正常宫颈上皮组织宫颈上皮内瘤变(CIN)及宫颈癌中的表达,探讨其与宫颈癌临床、病理特征的关系。方法:采用组织芯片技术结合免疫组织化学PV法分别检测101例宫颈癌、12例宫颈上皮内瘤变和正常宫颈上皮组织中COX-1.COX-2的表达。结果:①COX-1在正常宫颈组织、CIN及宫颈癌中的表达差异无统计学意义(P〉0・05)。COX-2在正常宫颈组织中无表达,在CIN(66.7%)及宫颈癌(87.1%)中的表达率明显高于正常宫颈组织(P<0.
2、01),但COX-2在CTN及宫颈浸润癌中的表达率比较,差异无统计学意义(P>0.05)o②宫颈癌中COX-1的表达与发病年龄、临床分期、病理分级、宫颈浸润深度及淋巴结转移无关(P>0.05);COX-2的表达与发病年龄、临床分期、病理分级及宫颈浸润深度无关(P>0.05),而与淋巴结转移有关(P<0.05),伴淋巴结转移者COX-2的表达较高。结论:COX-1的表达可能与宫颈癌的发生、发展无直接关系;COX-2过度表达可能参与宫颈癌的发生、发展过程,故可作为反映宫颈癌生物学行为的有效指标之一。【关键词】宫颈癌环氧化酶-1环氧化酶-
3、2AbstractObjective:ToinvestigatetheexpressionofCOXincervicalcarcinoma,CINandnormalcervicalepithelium;ToevaluatethecorrelationbetweentheCOXsandclinico-pathologicvariablesinthesecervicalcarcinomapatients.Methods:TheexpressionofCOX-1andCOX-2,wereexaminedbyimmunohistochemi
4、stryPVmethodandtissuechipmethodin101casesofcervicalcarcinomas,12casesofCINand10casesofnormalcervicalepithelium.Results:①ThepositiveexpressionratesofCOX-1havenosignificantdifferencebetweencervicalcarcinomas,CINandnormalcervicalepithelium.COX-2proteincannotbedetectedinno
5、rmalcervicalepithelium;ThepositiveexpressionratesofCOX-2inCIN(66.7%)andcervicalcarcinomas(87.1%)weresignificantlyhigherthaninnormalcervicalepithelium(P<0.01),buttherewasnosignificantdifferencebetweenCINandcervicalcarcinomas(P>0.05).②TheexpressionofCOX-1incervicalcarcin
6、omashasnocorrelationwithage,clinicalstages,grades,invasiondeepandmetastasisoflymphaticnode;TheexpressionofCOX-2incervicalcarcinomashasnocorrelationwithage,clinicalstages,gradesandinvasiondeep,butithasacorrelationwithmetastasisoflymphaticnode(P<0.05).Conclusion:COX-1pro
7、bablyhasnosignificantrelationshipwithcarcinogenesisanddevelopmentofcervicalcancer;COX-2mayplayanimportantroleincarcinogenesisanddevelopmentofcervicalcancer,COX-2maybevaluabletofurtherunderstandthebiologicalbehaviorofcervicalcarcinoma・KeywordsCervicalcareinoma;Cyclooxyg
8、enase-1;Cyclooxygenase-2宫颈癌是最常见的妇科恶性肿瘤,是癌症造成妇女死亡的第二位原因,其发病机制迄今尚未完全阐明。据WHO报道每年新发现宫颈癌病例约有50万,故对宫颈癌发病机制及防治途径的研究在妇科肿瘤中占有非