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时间:2020-06-04
《采用多重PCR结合高分辨熔解曲线法单管同时检测JAK2V617F突变和JAK2外显子12突变.pdf》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、194·中华检验医学杂志2014年3月第37卷第3期ChinJLabMed,March2014,Vo1.37,No.3.论著采用多重PCR结合高分辨熔解曲线法单管同时检测JAV617F突变和JAK2外显子12突变许笑陈宇明吴之源张心菊胡婷婷张瑾关明【摘要】目的建立能单管同时检测JAK2V617F突变和外显子12突变的方法。方法以Pc一3细胞株DNA为野生型对照,分别以HEL细胞株DNA和含有JAK2外显子12突变的质粒作为JAK2V617F突变和外显子12突变的阳性对照,采用多重PCR扩增不同DNA片段,并结合高分辨熔解
2、曲线法建立检测JAK2V617F和外显子12突变的联合检测体系。同时选取42例真性红细胞增多症患者,分别采用上述方法和常规方法在外周血中检测JAK2的2种突变。结果采用多重PCR结合高分辨熔解曲线法成功建立了JAK2突变联合检测体系,能够同时检测JAK2V617F突变和外显子12突变,2种突变的检测灵敏度皆可达5%,2种扩增片段的溶解温度(Tm)的批间及批内变异系数都小于0.01%。42例真性红细胞增多症患者中,发现37例携有JAK2V617F突变,在5例JAK2V617F突变阴性真性红细胞增多症病例中检出2例JAK2外
3、显子12突变。与常规方法相比,结果符合率达到100%。2例JAK2外显子12突变经克隆测序确认突变类型为H538K539delinsL和F537-1546du110+F547L。结论该方法可同时在外周血中检测出JAK2的2种突变,将有助于对骨髓增殖性肿瘤尤其是真性红细胞增多症的分子诊断。r中华检验医学杂岳,2014,37:194—197)【关键词】Janus激酶2;外显子;突变;多重聚合酶链反应;高分辨率熔解曲线;红细胞增多症,真性SimultaneousdetectionofJAK2V617FmutationandJA
4、K2exonl2mutationsbymultiplexPCRandhigh-resolutionmeltingcurveanalysisXuXiao,ChenYuming,耽Zhiyuan,ZhangXinju,HuTingting,Zhangfin,GuanCentralLaboratoryofHuashanHospital,FudanUniversity,Shangha20O0.inaCorrespondingauthor:Guan,Email:guanming88@yahoo.com【Abstract】Objec
5、tiveToestablishasingle—tubedetectingsystemforthesimultaneousidentificationofJAK2V617FandJAK2exonl2mutations.MethodsGenomicDNAofcelllinePC一3wasutilizedasthewildtypecontro1.whilegenomicDNAofcelllineHELandplasmidswithdiverseJAK2exon12mutationswereusedasthepositiveco
6、ntrolsforJAK2V617Fandexonl2mutations.MuhiplexPCRwasperformedtoamplifythedifferentampliconscombinedwithhigh—resolutionmelting(HRM)analysis,whichestablishedthemultiplexdetectingsystemforJAK2V617Fandexonl2mutations.Meanwhile42casesofpolycythemiaverapatientswerecolle
7、ctedtodetect2kindsofJAI(2mutationsbytheabovesystemandroutinemethods.ResultsThemultiplexJAK2mutationsdetectingsystemwassuccessfullyestablishedbymultiplexPCRcombinedwithhigh—resolutionmeltingcurveanalysis,whichcouldsimultaneouslydetectJAK2V617FandJAK2exonl2mutation
8、s.Theanalyticalsensitivitiesof2mutationsinthissystemwerebothupto5%andtheprecision(eoemeientofvariation)ofintra—andinter—assayofthemeltingtemperature(Tm)of2ampl
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