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ID:19528124
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时间:2018-10-03
《老年急性白血病的临床特点及免疫学表型的研究.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、老年急性白血病的临床特点及免疫学表型的研究【摘要】 本研究分析老年急性白血病(AL)临床特点及生物学特征。对经FAB确诊的104例老年AL的临床及生物学特征进行回顾性分析,同时以71例非老年AL为对照并进行比较。结果表明:①老年急性非淋巴细胞性白血病(AML)比例(73%)明显多于非老年急性非淋巴细胞性白血病(AML)比例(54.9%),差别有统计学意义(P<0.05),本组老年AML(M3)缺如;②老年AL骨髓原始细胞中位数明显低于非老年组(P<0.05);③AML中,老年组CD14表达率(18.8%)明显高于非老年组CD14表达率(2.6%),老年组CD15(37.5%)、CD
2、117(62.5%)、CD38(59.4%)表达率低于非老年组CD15(69.2%)、CD117(89.7%)、CD38(84.6%)表达率,差别均有统计学意义(P<0.05);④老年组急性淋巴细胞性白血病(ALL)中CD19表达最常见,表达率为100%;⑤老年组与非老年组在系列抗原专一表达和交叉表达及CR率上差别无显著性(P>0.05);⑥老年组不良核型表达率高于非老年组,差异有显著性(P<0.01);⑦老年组完全缓解率(CR率)为42.9%,两年存活率为5.4%,化疗相关死亡率为26.8%,非老年组CR率为76.6%,两组比较差异有显著性(P<0.05)。结论:老年AL不良免疫分
3、型CD14表达率较非老年组高,良好免疫分型CD15表达率低于非老年组。不良核型表达率高于非老年组,总体缓解率低,死亡率高,化疗耐受性差,预后差。【关键词】急性白血病 老年急性白血病 临床特点 免疫表型 ClinicalCharacteristicsandImmunophenotypeofAgedPatientswithAcuteLeukemia AbstractInordertoanalyzetheclinicalcharacteristicsandbiologicalfeaturesofacuteleukemiainelderly,104acuteleukemiapatien
4、tsinelderlywereretrospectivelyanalyzedandcomparedwith71acuteleukemiapatientsbelow60yearsold.Theresultsshowedthat:(1)theproportionofAMLintheagedgroup(73%)washigherthanthatintheyounggroup(54.9%),andthedifferencewasstatisticallysignificant(P<0.05),butAML(M3)wasabsentintheagedgroup;(2)themedianofbo
5、nemarrowblastcellintheagedgroupwassignificantlylowerthanthatintheyounggroup(P<0.05);(3)inAML,thefrequentlyofCD14expressionwashigherintheagedgroup(18.8%)thanthatintheyounggroup(2.6%),whiletheexpressionfrequenciesofCD15(37.5%),CD117(62.5%),andCD38(59.4%)wererespectivelylowerintheagedgroupthanthat
6、intheyounggroupwhichwere(69.2%)forCD15,(89.7%)forCD17,and(84.6%)forCD38respectively,andthedifferencewasalsostatisticallysignificant(P<0.05).(4)CD19wasmostfrequentlyexpressedinALLoftheagedgroupandthepositiveratewas100%;(5)therewasnosignificantdifferenceinexpressionofspeciallineage8antigensandove
7、rlappinglineageantigensbetweentheagedgroupandtheyounggroup(P>0.05);(6)theexpressionfrequencyofunfavorablekaryotypesintheagedgroupwashigherthanthatintheyounggroup,andthedifferencewasstatisticallyverysignificant(P<0.01);(7)thecomple
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