间期荧光原位杂交检测血液病染色体三体8

Use of interphase fluorescence in situ hybridization for diction of trisomy 8 in hematologic disorders

目的 探讨间期荧光原位杂交(FISH)技术在检测血液病染色体三体8中的价值.方法 用荧光素直接标记的8号染色体着丝粒探针对77例血液病患者进行间期FISH检测,并与常规细胞遗传学方法(CC)进行比较分析.结果 FISH法三体8的检出率较传统吉姆萨显带高,或在吉姆萨显带无法分析时提供结果.结论 FISH检测三体8的敏感性高于常规核型分析,在小克隆检测方面有其优越性.

Objective To explore the value of interphase fluorescence in situ hybridization(FISH) in the detection of trisomy 8 in patients with hematologic disorders. Methods Seventy-seven patients were vestigated by directly labeled centrome DNA probes specific for 8 chromosome. The results were compared with that of conventional cytogenetic (CC) analysis. Results The proportion of trisomy 8 of 77 cases of hematologic disorders detected by FISH is higher than by G-banding karyotyping and FISH could offer the result when conventional cytogenetic methods failed to diagnose. Conclusion Interphase FISH is more sensitive in the detection of trisomy 8 than CC, and FISH displays its superiority in the detection of small clone.