Cytogenetic profiles of 2806 patients with acute myeloid leukemia-a retrospective multicenter nationwide study.

Abstract:

:The cytogenetic and molecular data is recognized as the most valuable prognostic factor in acute myeloid leukemia (AML). Our aim was to systemically analyze the cytogenetics of Korean AML patients and to compare the cytogenetic profiles of various races to identify possible geographic heterogeneity. We retrospectively reviewed medical records of 2806 AML patients diagnosed at 11 tertiary teaching hospitals in Korea between January 2007 and December 2011. The most common recurrent chromosomal abnormality was t(8;21) (8.8 %, 238/2717), but t(15;17) showed an almost same number (8.6 %,235/2717). Among de novo AML, the most frequent aberrations were t(15;17), observed in 229 (10.7 %). The most common French-American-British (FAB) classification type was M2 (32.2 %), and recurrent cytogenetic abnormalities correlated with the FAB subtypes. Among 283 secondary AML cases, myelodysplastic syndrome was the most common predisposing factor. About 67.1 % of the secondary AML cases were associated with chromosomal aberrations, and chromosome 7 abnormalities (n = 45, 15.9 %) were most common. The incidence of FLT3 internal tandem duplication mutation was relatively low at 15 %. Our study reports certain similarities and differences in comparison to previous reports. Such discrepancies call for extensive epidemiological studies to clarify the role of genetic as well as geographic heterogeneity in the pathogenesis of AML.

journal_name

Ann Hematol

journal_title

Annals of hematology

authors

Byun JM,Kim YJ,Yoon HJ,Kim SY,Kim HJ,Yoon J,Min YH,Cheong JW,Park J,Lee JH,Hong DS,Park SK,Kim HJ,Ahn JS,Shin HJ,Chung JS,Lee WS,Lee SM,Park Y,Kim BS,Lee JH,Lee KH,Jung CW,Jang JH,Min WS,Park TS,AML\/M

doi

10.1007/s00277-016-2691-1

subject

Has Abstract

pub_date

2016-08-01 00:00:00

pages

1223-32

issue

8

eissn

0939-5555

issn

1432-0584

pii

10.1007/s00277-016-2691-1

journal_volume

95

pub_type

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