双色间期荧光原位杂交检测急性粒-单核细胞白血病inv(16)  被引量:1

Use of dual-color interphase FISH for the detection of inv (16) in acus myelomonocytic leukemia

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作  者:周惠芬[1] 李建勇[1] 朱雨[1] 潘金兰[2] 仇海荣[2] 沈云峰[3] 徐卫[1] 薛永权[2] 

机构地区:[1]南京医科大学第一附属医院、江苏省人民医院血液科,210029 [2]苏州大学附属第一医院、江苏省血液研究所 [3]南京医科大学附属无锡第一医院血液科

出  处:《白血病.淋巴瘤》2007年第1期9-11,共3页Journal of Leukemia & Lymphoma

基  金:江苏省135工程医学重点人才基金资助项目(RC2002044).

摘  要:目的探讨双色荧光原位杂交(D-FISH)技术在检测急性粒-单核细胞白血病(M4)inv(16)中的价值。方法用荧光素直接标记的双色断裂点分离的基因探针CBFβ对42例M4患者进行间期D-FISH检测,并与常规细胞遗传学进行比较分析。结果采用R显带核型分析的42例M4患者均未发现inv(16),而D-FISH检测发现10例(23.8%)inv(16),阳性率为30.1%-98.0%,平均阳性率82.1%。5例M4Fn患者均伴有inv(16)。10例阳性患者中7例核型正常,2例伴+22,1例伴+8。结论inv(16)在M4中阳性率为23.8%,与M4Fn密切相关;用CBFβ双色探针进行D-FISH为检测inv(16)提供了有效的方法. 是细胞遗传学检查的重要补充。Objective To explore the value of dual-color fluorescence in situ hybridization (D-FISH) in the detection of inv(16)(p13q22) in acute myelomonoeytie leukemia (M4). Methods Forty-two M4 patients were investigated by interphase D-FISH with two-color break apart probe CBFβ. The results were compared with that of conventional cytogenetie analysis. Results R-banding karyotyping did not find inv(16) in any of the 42 patients. But 10 (23.8 %) patients including all five M4Eo cases had inv(16) by D-FISH analysis. The mean positive rate was 82.1% (range 30.1% - 98.0 %). The karyotypes of the 10 patients were normal (seven cases), with trisomy 22 (two cases) or with trisomy 8 (one case). Conclusion Inv(16) appeared in 23.8 % of M4 and had a close relationship with M4Eo. Dual-color interphase FISH with CBFβ probe provides a powerful technique for the detection of inv (16) and is an important supplement to the conventional cytogenetic analysis.

关 键 词:白血病 粒-单核细胞 急性 染色体  16对 倒位 染色体 原位杂交 荧光 

分 类 号:R733[医药卫生—肿瘤]

 

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