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1、Ecadherin和Ki67在結直腸癌組織中的表達及意義作者:何艷姣,劉朝霞,李洪利,俞進,李光【摘要】目的探討Ecadherin和Ki67在結直腸癌中的表達及意義。方法應用免疫組化SP法檢測48例結直腸癌、23例結腸腺瘤和20例正常結腸組織中Ecadherin及Ki67的表達,并分析其與結直腸癌臨床病理特征的關系。結果結直腸癌、結腸腺瘤和正常結腸組織中Ecadherin異常表達率分別為77.1%、24.0%和5.0%,結直腸癌Ecadherin異常表達率明顯高于結腸腺瘤和正常結腸組織,組間比較差異有顯著性(P<0.01)。Ki6
2、7陽性指數(shù)在結直腸癌、結腸腺瘤及正常結腸組織中分別為(67.60±2.52)%、(38.44±3.59)%及(8.65±1.10)%。結直腸癌的Ki67陽性指數(shù)明顯高于結腸腺瘤和正常結腸組織,組間兩兩比較差異有統(tǒng)計學意義(P<0.01)。Ecadherin表達與浸潤深度和有無淋巴轉移有關(P=0.020和P=0.013),而與患者的年齡、性別、大體形態(tài)、分化程度無關。Ki67表達與患者性別和有無淋巴轉移有關(P=0.011和P=0.043),而與患者的年齡、大體形態(tài)、分化程度、浸潤深度無關。Ecadherin正常表達組和異常表達組的Ki6
3、7陽性指數(shù)分別為(67.30±18.87)%和(68.64±11.99)%。Ecadherin異常表達組Ki67陽性指數(shù)略高于正常表達組,但無統(tǒng)計學意義。結論Ecadherin和Ki67是結直腸癌發(fā)生發(fā)展過程中的重要因子,并與結直腸癌浸潤轉移有關,可作為評估結直腸癌預后、指導治療的指標,但兩者在結直腸癌發(fā)生、發(fā)展、侵襲和轉移過程中沒有協(xié)同作用?!娟P鍵詞】結直腸腫瘤;Ecadherin;Ki67 ExpressionandSignificanceofEcadherinandKi67inColorectalCarcinoma Abs
4、tract:ObjectiveTostudytheexpressionandsignificanceofEcadherinandKi67incolorectalcarcinoma.MethodsFortyeightcolorectalcarcinomas,23colorectaladenomaand20normalcolorectaltissueswereenvolledinthisstudy.ImmunohistochemistrymethodwasusedtodetecttheexpressionsofEcadherinandKi67
5、,thentheirrelationshipwiththeclinicopathologicalfeaturesofcolorectalcarcinomaswasanalyzed.ResultsTheabnormalrateofEcadherinincolorectalcarcinomas(77.1%)wasmuchhigherthanthatofadenomas(24%)andnormaltissues(5%),significantcorrelationwasfound(P<0.01).Ki67positiveindexincolor
6、ectalcarcinomas(67.60±2.52)%wasmuchhigherthanthatofadenomas(38.44±3.59)%andnormaltissues(8.65±1.10)%,significantcorrelationwasfound(P<0.01).Ecadherinexpressionwasassociatedwithinfiltrateddepthandlymphnode6metastasis(P=0.020,P=0.013).Ki67expressionwasassociatedwithgenderan
7、dlymphnodemetastasis(P=0.011,P=0.043).Ki67positiveindexinEcadherinnormalexpressionandabnormalexpressionwere(67.30±18.87)%and(68.64±11.99)%.Ki67positiveindexinEcadherinabnormalexpressionwashigherthannormalexpression,butnostatisticalsignificance.ConclusionEcadherinandKi67w
8、ereimportantfactorsinoccurrenceanddevelopmentofcolorectalcarc