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1、Axin蛋白表達與肝細胞癌發(fā)生及預后關系的研究作者:董承偉 曾勇 丁怡 莊冠一 李森【摘要】目的:明確Axin蛋白在正常肝組織、肝細胞癌組織、癌旁組織中的表達,探討Axin蛋白表達與肝細胞癌的發(fā)生及與預后影響因素間的關系。方法:采用免疫組織化學方法(SABC法)檢測正常肝組織(15例)、肝細胞癌組織(40例)及其癌旁組織(21例)中Axin蛋白的表達及定位。結果:正常肝組織、肝細胞癌組織及癌旁組織中均有Axin蛋白表達,其陽性表達率分別為92.9%、57.5%和90.5%。Axin蛋白表達于陽性細胞胞質(zhì)中;正常肝組織與癌旁組織中Axin蛋白的表達差異無統(tǒng)計學意義(P>0.05);正常
2、肝組織和癌旁組織中Axin蛋白表達與癌組織比較,差異均有統(tǒng)計學意義(P<0.05);Axin的表達與肝細胞癌患者性別、年齡、腫瘤大小、AFP表達水平無關(P>0.05),而與臨床病理分期、門靜脈癌栓形成相關(P<0.05)。結論:Axin蛋白表達減弱可能參與肝細胞癌的發(fā)生;Axin蛋白表達水平可作為肝細胞癌患者診斷和預后判斷的一項指標。【關鍵詞】癌,肝細胞·Axin蛋白·免疫組織化學 【ABSTRACT】Objective:TodetecttheexpressionanddistributionofAxininthenormallivertissue,9paracarc
3、inomatoustissueandprimaryhepatocellularcarcinomatissueandinvestigatetherelationshipbetweenAxinexpressionandthegenesis,andprognosisofHCC.Methods:TheexpressionofAxinproteinwasevaluatedinparaffinembeddedtissuesbyimmunohistochemicaltechniques(SABC)in40caseofHCC,21casesofparacarcinomatoustissueand14cas
4、esofnormallivertissue.And5caseofnormalstomachtissueand5casesofgastriccarcinomatissuewereevaluatedasapositivecontrol.Results:TheexpressionofAxinproteinwasobservedinHCCtissues,paracarcinomatoustissuesandnormallivertissues.ThepositiveexpressionsofAxinwere57.5%、90.5%、92.9%respectively.Thebrowngranules
5、ofpositivecellweremainlydistributedinthecytoplasm.NosignificantdifferenceintheexpressionofAxinwasfoundbetweennormallivertissuesandparacarcinomatoustissue(P>0.05),butnotbetweentheparacarcinomatoustissueandHCC(P<0.05).Axinproteinexpressionwerenotrelatedtoage,sex,tumorsizeandtheexpressionofAFP,
6、butweresignificantlycorrelatedwithportalveininvasionandclinicalpathologicalstage.Innormalstomachtissue,theexpressionofAxinisstronginthestemcellsandweakinthematurecells.Butitsexpressioninnormallivertissueiswell-proportioned.Conclusion:Axinexpressesmainly9inthestem-cells,anditsexpressionisimportantt
7、osustainthefunctionofthestem-cell;HepatitisBandlivercirrhosishavenoinfluencetotheexpressionofAxin;ThereducedexpressionofAxincorrelateswiththegenesisofHCC;Thecheckofitsexpressioncanbeusedasanindependentlyindextoev