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《t淋巴瘤侵襲轉(zhuǎn)移誘導(dǎo)因子1表達(dá)水平在胃癌淋巴結(jié)轉(zhuǎn)移中的意義》由會(huì)員上傳分享,免費(fèi)在線閱讀,更多相關(guān)內(nèi)容在學(xué)術(shù)論文-天天文庫。
1、T淋巴瘤侵襲轉(zhuǎn)移誘導(dǎo)因子1表達(dá)水平在胃癌淋巴結(jié)轉(zhuǎn)移中的意義作者:續(xù)薇,單洪麗,劉力華,張恩穎,關(guān)寶杰,王冠軍【摘要】目的定量檢測(cè)T淋巴瘤侵襲轉(zhuǎn)移誘導(dǎo)因子1(Tiam1)在胃癌組織中的表達(dá)水平,探討并評(píng)價(jià)其在胃癌淋巴結(jié)轉(zhuǎn)移中的作用。方法采用TaqMan探針實(shí)時(shí)熒光定量PCR方法,定量檢測(cè)66例胃癌患者癌組織、癌旁組織及11例胃良性病變組織中的Tiam1mRNA拷貝數(shù),同時(shí)將CK18作為淋巴結(jié)微轉(zhuǎn)移的標(biāo)志基因,定量檢測(cè)24例病理診斷無淋巴結(jié)轉(zhuǎn)移的胃癌患者199枚淋巴結(jié)的CK18mRNA拷貝數(shù)。結(jié)果66例胃癌患者的癌組織92.42%(61/66)
2、Tiam1mRNA表達(dá)陽性,而癌旁為19.70%,胃良性病變組織11例只檢測(cè)到1例Tiam1mRNA表達(dá),胃癌組織Tiam1mRNA陽性率高于癌旁組織(χ2=70.86)和良性病變組織(χ2=41.74)(均P<0.01),差異有統(tǒng)計(jì)學(xué)意義(χ2=78.96,P<0.01)。胃癌組織中Tiam1mRNA表達(dá)量明顯高于癌旁和良性病變組織(4.92×105vs.0)。66例患者根據(jù)淋巴結(jié)轉(zhuǎn)移分為3組;24例病理無淋巴結(jié)轉(zhuǎn)移的胃癌患者通過淋巴結(jié)CK18mRNA的定量檢測(cè),15例存在微轉(zhuǎn)移。微轉(zhuǎn)移組(9.51×104)及病理轉(zhuǎn)移組(2.
3、99×106)Tiam1mRNA表達(dá)量明顯高于未轉(zhuǎn)移組(4.54×102,P<0.01)。結(jié)論Tiam1與胃癌淋巴結(jié)轉(zhuǎn)移密切相關(guān)。胃癌組織Tiam1表達(dá)水平可能決定癌細(xì)胞淋巴轉(zhuǎn)移的傾向,可以成為術(shù)前評(píng)估轉(zhuǎn)移的實(shí)驗(yàn)診斷參考指標(biāo)。12【關(guān)鍵詞】Tiam1;CK18;胃癌;轉(zhuǎn)移;微轉(zhuǎn)移inducingfactor1inlymphnodemetastasisofgastriccarcinomasXUWei,SHANHongli,LIULihua,ZHANGEnying,GUANBaojie,WANGGuanjunABSTRACT:O
4、bjectiveTodetectquantitativelytheexpressionlevelofTlymphomainvasionandmetastasisinducingfactor1(Tiam1)ingastriccarcinomatissues,andevaluatetheroleofTiam1inlymphnodemetastasisofgastriccarcinomas.MethodsRealtimefluorescencequantitiveRTPCR(RTFQPCR)wasusedtodetecttheexpres
5、sionlevelofTiam1mRNAingastriccancertissuesof66cases,paracanceroustissues(over3cm)of66casesandgastricbenignlesiontissuesof11cases.Meanwhile,CK18wasselectedasthehallmarkerforlymphnodemicrometastasistodetectthelevelofCK18mRNAexpressionin199lymphnodesfrom24casesofgastriccarci
6、nomasdiagnosednegativebypathologicexaminations.ResultsThepositiverateofTiam1mRNAexpressioningastriccancertissuesandparacanceroustissueswas92.42%(61/66)and19.70%(13/66),respectively,andonlyonecasein11gastricbenignlesiontissuesexpressedTiam1mRNA.Thereweresignificant12differ
7、ences(P<0.01)amongthethreegroupsofpatients.ThepositiveexpressionrateofTiam1mRNAingastriccancertissueswasmuchhigherthanthatintheparacanceroustissues(χ2=70.86)andgastricbenignlesiontissues(χ2=41.74)(P<0.01).TheexpressionlevelofTiam1mRNAingastriccancertissueswasmuchhig
8、herthanthatintheparacanceroustissuesandgastricbenignlesiontissues(4.92×105vs.0).The66cas