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时间:2018-08-01
《cathepsin b、upa和upar基因在肝细胞肝癌中的表达、相互关系及作用》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、CathepsinB、uPA和uPAR基因在肝细胞肝癌中的表达、相互关系及作用【摘要】目的:探讨肝细胞肝癌(HCC)组织中组织蛋白酶B(CB)、尿激酶型纤溶酶原激活物(uPA)及其受体(uPAR)基因的表达、相互关系及作用,并分析其机制。方法:应用RT-PCR方法测定71例肝组织标本,包括对照组(C)12例,HCC组34例和癌旁组织(PTT)组25例的CBmRNA、uPAmRNA、uPARmRNA表达,分析其间的相关性。结果:HCC组CBmRNA、uPAmRNA、uPARmRNA表达均明显高于C组和PTT组,差异有显著性(P<0.01),PTT组与C
2、组间差异均无显著性(P>0.05)。CBmRNA与uPAmRNA(r=0.805),CBmRNA与uPARmRNA(r=0.786),uPAmRNA与uPARmRNA(r=0.874)之间均存在显著的正相关关系(均P<0.01)。结论:肝癌组织CBmRNA、uPAmRNA、uPARmRNA均呈现高表达,它们之间可能相互诱导,协同促使肝癌的侵袭和转移。【关键词】癌肝细胞组织蛋白酶B尿纤溶酶原激活物尿纤溶酶原激活物受体Expression,relationshipandeffectofgeneofcathepsinB,urokinase-typep
3、lasminogenactivator(uPA)anditsreceptor(uPAR)inhepatocellularcarcinomaXUChang-long*,ZHENGJun-jie,XUEZhan-xiong,HUANGZhi-ming.*DepartmentofDigestive9Medicine,theSecondAffilatedHospitalofWenzhouMedicalCollege,Wenzhou,325027Abstract:Objective:Todeterminetheexpression,relationshipandfu
4、nctionofgeneofcathepsinB(CB),urokinase-typeplasminogenactivator(uPA)anditsreceptor(uPAR)inhepatocellularcarcinoma,andtoexploretheireffectsandmechanism.Methods:TheexpressionofCBmRNA,uPAmRNAanduPARmRNAin71specimensofhumanhepatictissue,includingcontrol(C)12,hepatocellularcarcinoma(HC
5、C)34andparatumortissueofhepatocellularcarcinoma(PTT)25weredetectedwithreversetranscription-polymerasechainraction(RT-PCR).TheexpressionofrelationshipamongCBmRNA,uPAmRNAanduPARmRNAwereresearched.Results:TheCBmRNA,uPAmRNAanduPARmRNAinHCCwereverysignificantlyhigherthanthoseinCandinPT
6、T(allP<0.01);therehadnosignificantdifferencebetweenPTTandC(allP>0.05).ThereweresignificantcorrelationbetweentheexpressionofCBmRNAanduPAmRNA(r=0.805),CBmRNAanduPARmRNA(r=0.786),uPAmRNAanduPARmRNA(r=0.874)(allP<0.01).Conclusion:TheCBmRNA,uPAmRNAanduPARmRNAshowstronglyexpres
7、sioninHCCandtheymayinduceeachother,promotecooperativelyinvasionand9metastasisofHCC.Keywords:hepatocellularcarcinoma;cathepsinB;uPA;uPAR;neoplasminvasiveness;neoplasmmetastasis基底膜和细胞外基质是肿瘤细胞侵袭的第一道屏障。目前研究发现,组织蛋白酶B(CathepsinB,CB)对基底膜和细胞外基质的降解是恶性肿瘤侵袭转移的关键步骤之一[1,2],尿激酶型纤溶酶原激活物(urokinas
8、e-typeplasminogenactivator,uPA)与其
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