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1、胃癌組織中基質(zhì)金屬蛋白酶-9和整合素β3mRNA表達(dá)的臨床意義作者:楊月明葉再元趙仲生王元宇【摘要】目的研究基質(zhì)金屬蛋白酶-9(MMP-9)和整合素β3(Integrinβ3)mRNA在胃癌組織中的表達(dá)及與臨床病理參數(shù)、腫瘤微血管密度、生存期的關(guān)系。方法應(yīng)用原位雜交和免疫組化,檢測105例胃癌組織中MMP-9、Integrinβ3mRNA和CD34的表達(dá)。結(jié)果MMP-9和Integrinβ3mRNA陽性表達(dá)率分別為58.10%和60.95%,其陽性表達(dá)與胃癌生長方式、浸潤深度、脈管侵犯、淋巴結(jié)及遠(yuǎn)處轉(zhuǎn)移均密切相
2、關(guān)(P均<0.01);MMP-9、Integrinβ3mRNA的陽性表達(dá)病例的平均血管數(shù)均高于陰性表達(dá)病例的平均血管數(shù)(P均<0.05);MVD值分別與MMP-9和Integrinβ3mRNA的表達(dá)水平呈正相關(guān)(P均<0.05);MMP-9和Integrinβ3mRNA的陽性表達(dá)以及MVD值≥39.5病例的5年生存率顯著低于陰性表達(dá)和MVD值<39.5的病例;MMP-9和Integrinβ3mRNA表達(dá)存在顯著相關(guān)性(P<0.05)。結(jié)論MMP-9、Integrinβ3可促進胃癌血管生成,并參與腫瘤浸潤轉(zhuǎn)移過程
3、,可以作為反映胃癌生物學(xué)行為和判斷預(yù)后的有效指標(biāo)。【關(guān)鍵詞】胃癌基質(zhì)金屬蛋白酶-9整合素β3轉(zhuǎn)移預(yù)后 【Abstract】ObjectiveToinvestigatetheexpressionofmatrixmetalloproteinase-9(MMP-9)andintegrinbeta-3mRNAingastriccarcinomaandtofindthecorrelationbetweentheexpressionrateofthemandclinicopathologicindex,microvess
4、eldensityandsurvivaltimeofgastriccarcinomapatients.MethodsInsituatehybridizationandimmunohistochemicaltechniqueswereusedtodetectthegeneexpressionofMMP-9,Integrinbeta-3andCD34in105gastriccarcinomaspecimens.ResultsInsituhybridizationrevealedthatpositiveexpress
5、ionrateofMMP-9andIntegrinbeta-3mRNAwas58.10%and60.95%,respectively.Therewasasignificantcorrelationbetweentheexpressionofthemandgrowthpattern,depthoftumorinvasion,vesselinvasion,lymphnodeanddistantmetastasis(P<0.01).MeantumorMVDofpatientswithpositivemRNAexpre
6、ssionwassignificantlyhigherthanthosewithnegativemRNAexpression(P<0.05).Inaddition,MVDvaluewaspositivelycorrelatedwiththeexpressionlevelofMMP-9andIntegrinbeta-3mRNA(P<0.05).ThefiveyearsurvivalrateofpatientswithpositivemRNAexpressionandmeanMVDvalue≥39.5/mm2wer
7、esignificantlylowerthanthoseofpatientswithnegativemRNAexpressionandmeanMVDvalue<39.5/mm2;TheexpressionofMMP-9wassignificantlycorelatedwiththeexpressionofintegrinβ3(P<0.05).ConclusionTheexpressionofMMP-9andIntegrinβ3canpromotetumorangiogenesisandcontributes5t
8、otumorinvasionandmetastasisingastriccarcinoma.Theexpressionofthemmayserveasvaluableindicatorsofbiologicalbehaviourandprognosisofgastriccarcinoma. 【Keyword】GastriccarcinomaMatrixmetalloproteinas