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Title: Characterization of 12p molecular events outside ETV6 in complex karyotypes of acute myeloid malignancies
Authors: La Starza, R ×
Stella, M
Testoni, N
Di Bona, E
Ciolli, S
Marynen, Peter
Martelli, M F
Mandelli, F
Mecucci, Christina #
Issue Date: Jan-2000
Series Title: British Journal of Haematology vol:107 issue:2 pages:340-6
Abstract: Acute myeloid disorders with rearrangements of 12p outside the ETV6 gene were characterized by fluorescence in situ hybridization (FISH) with a panel of DNA probes. Seven patients with de novo acute myeloid leukaemia (AML), one with secondary acute myeloid leukaemia (sAML), and one in the blast phase of chronic myeloid leukaemia (CML-BP) were enrolled in the study. All AML cases showed multiple karyotypic changes. Chromosome 5 and/or 7 deletions were the most frequent accompanying changes. FISH revealed amplification, cryptic translocation, and fragmentation of chromosome 12, not discernible at karyotypic level. Different karyotypic rearrangements of 12p showed a common molecular event. Among the seven cases in which breakpoints could be determined, six were telomeric and one centromeric to ETV6. In three AML cases a new recurrent breakpoint in the telomeric region was identified distally to locus D12S158 and to pac 922B22 which is the most telomeric probe available for 12p. Accompanying cryptic deletions were also detected in five patients and the commonly deleted region, of around 700 kb, included the ETV6 gene and the D12S391 locus.
URI: 
ISSN: 0007-1048
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Molecular Genetics Section (-)
Clinical Genetics
Department of Human Genetics - miscellaneous
× corresponding author
# (joint) last author

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