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PCR检测急性淋巴细胞白血病T细胞抗原受体γ基因重排
Authors
Publication date
1 January 1995
Publisher
Editorial Office of Journal of Sun Yat-sen University
Abstract
应用多聚酶链反应技术体外扩增20例初治或复发的急性淋巴细胞白血病(ALL)T细胞抗原受体,(TCRγ)基因重排,结果显示:15例病人出现约400bp的扩增产物,阳性检出率为75%(15/20),产物电泳带位置略有差异提示其重排亚型的多样性。标准人急性T淋巴细胞白血病细胞株CCRF-CEM细胞携带TCRγ基因重排,为阳性对照;而正常骨用及Raji细胞检测阴性,为阴性对照。用系列稀释法证明本实验敏感性在10-5水平以上。我们还探讨了该法在急性淋巴细胞白血病基因诊断、微量残留白血病细胞的监测及自体骨髓移植物体外净化效果的评价上的应用价值。该法不需寡核苷酸探针杂交、无需对扩增产物进行测序、且费时短、检出率高,提示有重要的临床意义
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Last time updated on 15/10/2024