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时间:2018-09-01
《急性白血病患者SHP-1与c-kit基因表达及其临床意义.doc》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、急性白血病患者SHP-1与c-kit基因表达及其临床意义作者:韩颖,罗建民,贾晓辉,王福旭,姚丽,杜行严【摘要】为了探讨造血细胞磷酸酶(SHP-1)基因和原癌基因c-kit在急性白血病(AL)患者中的表达及其与AL的发生及预后的关系,应用半定量逆转录-聚合酶链反应(RT-PCR)方法检测60例急性白血病患者及33名正常对照者单个核细胞的SHP-1、c-kitmRNA的表达。结果显示:SHP-1在AML细胞中表达阳性率由高至低依次为缓解组、初治组、复发组,c-kit表达阳性率则相反,各组与正常对照组相比有显著性差异(P<0.05),SHP-1在AML细胞中表达阳
2、性率比ALL细胞高,有显著性差异(P<0.05),c-kit在AML细胞中表达阳性率比ALL细胞中高,有显著性差异(P<0.05);SHP-1与c-kit表达成负相关(r=-0.502,P<0.05);30例初治AML患者SHP-1+与SHP-1-的完全缓解率均有显著性差异(P<0.05),c-kit+与c-kit-的完全缓解率均有显著性差异(P<0.05)。结论:SHP-1可能是一个潜在的抑癌基因,它负性调节c-kit基因而抑制肿瘤的发生,同时监测二者的表达可作为判断AL治疗转归的预测指标。【关键词】急性白血病;SHP-1;c-kit
3、;聚合酶链反应 ExpressionandClinicalValueofSHP-1andc-kitinAcuteLeukemia AbstractTheaimofstudyistoinvestigatetheexpressionofhematopoieticcellphosphatase(SHP-1)geneandc-kitpro-oncogeneinacuteleukemia(AL)anditsimpactonprognosisinAL.Semi-quantityreversetranscriptase-polymerasechainreaction(RT-P
4、CR)wasusedtodetecttheexpressionofSHP-1mRNAandc-kitmRNAin60ALpatientsand33normalcontrols(NC).TheresultsshowedthatthepositiveratesofSHP-1expressionfromhightolowlevelwerefoundorderlyincompleteremissiongroup,newlydiagnosedgroupandrelapsedgroup,therewassignificancedifferencebetweeneachgroup
5、andNCgroup(P<0.05).Thepositiveratesofc-kitexpressionwereoppositeorderineachgroupsascomparedwithSHP-1.therewasalsosignificancedifferencebetweeneachgroupandNCgroup(P<0.05).ThepositiverateofSHP-1andc-kitexpressionsinAMLwashigherthanthatinALL(P<0.05),therewasnagativecorrelationbet
6、weenexpressionsofSHP-1andc-kit(r=-0.502,P<0.05);ThedifferencebetweenthecompleteremissionrateinSHP-1positiveandinSHP-1negativepatientsfrom30newlydiagnosedAMLpatientswassignificant(P<005),thesameresultwasfoundbetweenc-kit+completeremissionandc-kit-completeremission.Itisconcludedth
7、atSHP-1geneisapotentially6anti-oncogeneandinhibitsthegrowingoftumorbynegativelymodulatingc-kitgene.SimultaneousdetectionofSHP-1andc-kitgenemayactasafactorforpredictingprognosisinAL. Keywordsacuteleukemia;SHP-1;c-kit;polymerasechainreaction SHP-1为含SH2域(srchomology-2domain)的酪氨酸磷酸酶-1,
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