Cytogenetic profile in de novo acute myeloid leukemia with FAB subtypes M0, M1, and M2: a study based on 652 cases analyzed with morphology, cytogenetics, and fluorescence in situ hybridization

被引:27
作者
Klaus, M
Haferlach, T
Schnittger, S
Kern, W
Hiddemann, W
Schoch, C
机构
[1] Univ Munich, Dept Internal Med 3, Lab Leukemia Diagnost, D-81377 Munich, Germany
[2] GSF, Natl Ctr Environm & Hlth, Clin Cooperat Grp, Pathogenesis Acute Myeloid Leukemia, Munich, Germany
关键词
D O I
10.1016/j.cancergencyto.2004.03.008
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
In about 55% of acute myeloid leukemia (AML) cases, chromosome aberrations are detectable by cytogenetics. Close correlations between cytomorphology and cytogenetics have been reported. To determine a pattern of cytogenetic abnormalities within the French-American-British (FAB) subtypes AML M0, M1, and M2, we analyzed 48 AML MO, 179 AML MI, and 425 AML M2 and compared cytogenetic data to a cohort of 1,062 AML M3/3v, M4, M4eo, M5a/5b, M6, and MT Cytogenetic abnormalities were significantly more frequent in AML M0 (71%) compared to M1 (49%), M2 (53%), and the total cohort (56%; P < 0.02). While +8 was the most common numeric abnormality in all FAB subtypes, +13, +14, and +11 were associated with AML M0-M2. The only recurring balanced translocation that was associated with one of these FAB subtypes was t(8;21) in M2 (12.5%) and, rarely, M1 (1.7%) (M0, 0% and M3-7, 0.09%; P = 0.001). To evaluate the frequency of cytogenetically undetectable abnormalities, we performed fluorescence in situ hybridization (FISH) analyses in 273 AML M0-M2 with normal karyotype using probes for ETO, ABL, MLL, TEL, RB, P53, AML1, and BCR. In two cases we identified numerical aberrations of RB only in interphases nuclei. In seven additional cases, TEL and MLL abnormalities were found. In conclusion, t(8;21), +11, +13, and +14 are strongly associated with AML MO, M1, and M2. The FISH screening analyses identified abnormalities in an additional 3% in normal karyotypes. (C) 2004 Elsevier Inc. All rights reserved.
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页码:47 / 56
页数:10
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