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应用RT—PCR和基因扫描分析TCR Vβ谱系的CDR3长度了解急性单核细胞白血病病人克隆性增殖T细胞 被引量:1

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摘要 目的:了解急性单核细胞白血病(AML-M5)病人TCR Vβ亚家族T细胞的分布及其克隆性。方法:利用RT-PCR分别扩增9例M5病人外周血单个核细胞的TCR Vβ24个亚家族基因的CDR3,了解TCR Vβ谱系的表达情况。PCR 产物进一步经基因扫描分析,确定T细胞克隆性。结果:9例AML-M5病人仅存在1-10个Vβ亚家族T细胞,而正常血标本则可检测到24个Vβ亚家族。基因扫描分析显示:8例病人的某些Vβ亚家族出现这一主峰图象(寡克隆性T细胞)。Vβ2寡克隆T细胞发现于6例病人中。结论:结果提示AML-M5病人存在克隆性增殖的T细胞,主要为Vβ2亚家族,推测这可能是对白血病细胞(M5)相关抗原的特异性免疫反应并可能具有抗白血病的活性。
出处 《Chinese Medical Journal》 SCIE CAS CSCD 2002年第1期69-71,共3页 中华医学杂志(英文版)
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