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时间:2020-05-24
《结直肠癌有无肝转移血清差异蛋白质表达的研究.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、《中国医学创新》第11卷第21期(总第303期)2014年7月论著Lunzhu结直肠癌有无肝转移血清差异蛋白质表达的研究水’张伟斌①陈丹①马伟钦①何兴祥①陈羽①王丽京②【摘要】目的:利用蛋白质组学技术分离、鉴定结直肠癌有无肝转移患者血清中差异蛋白质,筛选诊断肝转移的血清蛋白标志物。方法:根据入组条件,收集结直肠癌无肝转移病例、有肝转移病例,在两组中随机抽取12例血清样本,同组血清等量混合进行双向凝胶电泳,建立两组血清蛋白质双向电泳图谱,用Image—MasterV5.0软件寻找两组差异蛋白质点,MALDI—TOF—MS对差异蛋白质进行鉴定,查询生物
2、信息数据库对差异蛋白质进行初步分析。结果:两组比较差异在2倍以上蛋白质有8种,其中5个蛋白质表达上调,3个蛋白质表达下调;两组每个差异蛋白灰度体平均值比较差异均有统计学意义(P3、orm1ofSerumalbumin。结论:结直肠癌有无肝转移患者血清中的蛋白质表达谱有一定的差异性,这些差异蛋白质可能成为诊断肝转移的血清标志物。【关键词】结直肠癌;肝转移;差异蛋白质AResearchStudyoftheSerumProteomicsExpressionsonLiverMetastasesValueinCoiorectalCarcinoma/ZHANGWei—bin,CHENDan,MAWei—qin,etaid/MedicalInnovationofChina,2014,11(21):001-006【Abstract】obje4、ctive:Touseproteomicsseparationmethodidentifycolorectalcarcinomapatients’serumproteins,SOastodifferentiateanddiagnostictheserumproteinbiomarkersforlivermetastases.Method:Accordingtoinclusioncriterion,patientshadbeendividedintocolorectalcancerpatientswithlivermetastases,andpati5、entswithoutlivermetastases.Twogroupswereberandomizedinto12serumsamples,sameamountofserumproteinsweremixedineachgroupbytwo—waycleargelelectrophoresis,followedbybuildingtwosetsoftwo—dimensionaleleetrophoresispattern.Image—MasterV5.0softwarewasusedtofindthedifferencesbetweentwosa6、mples.KamproteinsweredifferentiatedbyMatrix—assistedlaserdesorption/ionizationtimeofflightmassspectrometry(MALDI—TOF—MS).Thedifferentiatedexpressedproteinsingivenbioinformaticsdatabaseswasanalyzed.Result:Thecolorectallivermetastasesgroupandthenon——colorectallivermetastasesgrou7、pshowedthateightproteomewerespottedwithmorethantwodiferentials,ofwhichfiveproteinswereup——regulatedandtwoweredown-regulated.Eachproteingraybodyaveragedifferencesbetweenthetwogroupshadstatisticalsignificance(P<0.05).Fiveup—regulatedproteinswere:Transferrin,ComplementcomponentC98、,RNAdirectedDNApolymerase,Conservedhypothetical—protein,SEC14
3、orm1ofSerumalbumin。结论:结直肠癌有无肝转移患者血清中的蛋白质表达谱有一定的差异性,这些差异蛋白质可能成为诊断肝转移的血清标志物。【关键词】结直肠癌;肝转移;差异蛋白质AResearchStudyoftheSerumProteomicsExpressionsonLiverMetastasesValueinCoiorectalCarcinoma/ZHANGWei—bin,CHENDan,MAWei—qin,etaid/MedicalInnovationofChina,2014,11(21):001-006【Abstract】obje
4、ctive:Touseproteomicsseparationmethodidentifycolorectalcarcinomapatients’serumproteins,SOastodifferentiateanddiagnostictheserumproteinbiomarkersforlivermetastases.Method:Accordingtoinclusioncriterion,patientshadbeendividedintocolorectalcancerpatientswithlivermetastases,andpati
5、entswithoutlivermetastases.Twogroupswereberandomizedinto12serumsamples,sameamountofserumproteinsweremixedineachgroupbytwo—waycleargelelectrophoresis,followedbybuildingtwosetsoftwo—dimensionaleleetrophoresispattern.Image—MasterV5.0softwarewasusedtofindthedifferencesbetweentwosa
6、mples.KamproteinsweredifferentiatedbyMatrix—assistedlaserdesorption/ionizationtimeofflightmassspectrometry(MALDI—TOF—MS).Thedifferentiatedexpressedproteinsingivenbioinformaticsdatabaseswasanalyzed.Result:Thecolorectallivermetastasesgroupandthenon——colorectallivermetastasesgrou
7、pshowedthateightproteomewerespottedwithmorethantwodiferentials,ofwhichfiveproteinswereup——regulatedandtwoweredown-regulated.Eachproteingraybodyaveragedifferencesbetweenthetwogroupshadstatisticalsignificance(P<0.05).Fiveup—regulatedproteinswere:Transferrin,ComplementcomponentC9
8、,RNAdirectedDNApolymerase,Conservedhypothetical—protein,SEC14
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