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1、主堡塞驗(yàn)外雜志2014年1月第31卷第1期ChinJExpSurg,January2014。V01.31.No.1·159··臨床研究·CUG連接蛋白1在肝癌中的表達(dá)及其對細(xì)胞增殖能力的影響朱清海王艷瑛張漫麗張華甫吳偉【摘要】目的觀察CUG連接蛋白l(CUGBP1)在肝癌中的表達(dá)及其對肝癌細(xì)胞增殖能力的影響。方法免疫組織化學(xué)法檢測20例正常肝組織標(biāo)本及60例肝癌組織標(biāo)本中CUGBP1的表達(dá),并探討CUGBP1表達(dá)與肝癌患者臨床病理特征的關(guān)系;同時利用小干擾RNA(siRNA)對肝癌細(xì)胞中CUGBP1表達(dá)進(jìn)行下調(diào),通過細(xì)胞計數(shù)試劑盒(CCK一8)法檢測CUGBP1下調(diào)后細(xì)胞的增殖能力
2、。結(jié)果CUGBP1在肝癌中的陽性表達(dá)率為66.7%,明顯高于正常組織(0%),差異有統(tǒng)計學(xué)意義(P<0.05)。同時,CUGBP1表達(dá)與分化程度及淋巴結(jié)轉(zhuǎn)移有關(guān)(P<0.05);CUGBP1表達(dá)下調(diào)后,肝癌細(xì)胞的增殖能力明顯下降(P<0.05)。結(jié)論CUGBP1表達(dá)與肝癌的形成、分化及轉(zhuǎn)移密切相關(guān),其表達(dá)下調(diào)可明顯抑制細(xì)胞增殖?!娟P(guān)鍵詞】CUG連接蛋白1;癌,肝細(xì)胞;增殖ExpressionofCUG-bindingprotein1inhepatocellularcarcinomaanditsefectoncellproliferationZhuQinghai,WangYanyin
3、g,ZhangManli,ZhangHuaf~,耽.DepartmentofGeneralSurgery,Zhu—madianCentralHospitaf.umadian463D0D.CinaCorrespondingauthor:ZhuQinghai,Email:Jiangxijsf@163.com【Abstract】ObjectiveToinvestigatetheexpressionofCUG—bindingprotein1(CUGBP1)inhep-atocellularcarcinoma.a(chǎn)nditseffectoncellproliferation.MethodsCU
4、GBP1expressionwasdetectedin20casesofnormalliverand60casesofhepatocellularcarcinomabyusingimmunohistochemistry。andtherelationshipbetweenCUGBP1expressionandclinic0patho10gicfeatureswasassessed.CellCountingkit一8fCCK.8)assaywasusedtoexaminecellproliferationwhenCUGBP1expressionwasknockeddownbysmall
5、interferingRNAfsiRNA).ResultsThepositiverateofCUGBP1inhepatocellularcarcinomatissueswas66.7%.significantlyhigherthanthosethatinnormallivertissues(0%,P<0.05).CUGBP1ex.pressionwasobviouslyassociatedwithtumordiferentiationandlymphnodemetastasisinepatocellularcar.cinoma(P<0.05).AfterCUGBP1downregu
6、lation,theabilityofcellproliferationwassignificantlyde.creasedfP<0.05).ConclusionCUGBP1expressioniScloselyassociatedwiththeformation.differenti—ationandlymphnodemetastasisofhepatocellularcarcinoma,andCUGBP1downregulationcanobviouslyinhibitcellproliferation.【Keywords】CUG—bindingprotein1;Carcino
7、ma,hepatocellular;ProliferationCUG連接蛋白1(CUGBP1)是RNA連接蛋白高分化18例;發(fā)生淋巴轉(zhuǎn)移者38例,無淋巴轉(zhuǎn)移者CELF家族成員,參與調(diào)節(jié)mRNA前體剪切及mRNA22例?;颊咝g(shù)前均未接受過放化療。的翻譯和降解。研究結(jié)果表明,CUGBP1與人類腫瘤2.免疫組織化學(xué)染色:所有組織標(biāo)本均采用福馬有一定的關(guān)系]。本研究旨在觀察CUGBP1在肝癌林固定,石蠟包埋,厚3m切片,二甲苯及乙醇梯度中的表達(dá)及其對肝癌細(xì)胞增殖能力的影響。脫