High incidence of a second BCR-ABL fusion in chronic myeloid leukemia revealed by interphase cytogenetic analysis on blood and bone marrow smears
The t(9;22)(q34;q11) is the single most common chromosomal abnormality in leukemias. Recently, dual-color fluorescence in situ hybridization (FISH) protocols for the detection of the BCR-ABL fusion, which is the molecular counterpart of this translocation, have been described. In the present study,...
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| Main Authors: | , , , , , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
April 1996
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| In: |
Cancer genetics and cytogenetics
Year: 1996, Volume: 87, Issue: 2, Pages: 107-111 |
| ISSN: | 1873-4456 |
| DOI: | 10.1016/0165-4608(95)00261-8 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/0165-4608(95)00261-8 Verlag, lizenzpflichtig, Volltext: https://www.sciencedirect.com/science/article/pii/0165460895002618 
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| Author Notes: | Georges-P. Cabot, Martin Bentz, Claudia Scholl, Marion Moos, Konstanze Fischer, Peter Lichter, Hartmut Döhner |
| Summary: | The t(9;22)(q34;q11) is the single most common chromosomal abnormality in leukemias. Recently, dual-color fluorescence in situ hybridization (FISH) protocols for the detection of the BCR-ABL fusion, which is the molecular counterpart of this translocation, have been described. In the present study, we analyzed blood or bone marrow smears of 46 patients (34 with chronic myeloid leukemia [CML] and 12 with acute lymphoblastic leukemia [ALL]) for the presence of a BCR-ABL fusion. On these clinical routine samples, hybridization was performed with high efficiency and the BCR-ABL fusion was detected reliably. This series includes one case with a Philadelphia chromosome (Ph) on banding analysis and negative reverse transcriptase polymerase chain reaction (RT-PCR) results. Surprisingly, in 13 of the 34 CML patients (4 of 17 patients with chronic phase and 9 of 17 patients with blast crisis), and in 1 of the 12 ALL patients, an additional BCR-ABL fusion was diagnosed in 4% to 72.5% of interphase cells. In 10 of these 14 patients, banding data are available; only in two cases was the additional Ph detected by metaphase analysis. The data from this interphase cytogenetic analysis indicate that an additional Ph occurs more frequently than would be assumed based on banding analysis. |
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| Item Description: | Elektronische Reproduktion der Druck-Ausgabe 3. März 1999 Gesehen am 31.10.2024 |
| Physical Description: | Online Resource |
| ISSN: | 1873-4456 |
| DOI: | 10.1016/0165-4608(95)00261-8 |