Insertion of the 5' part of BCR within the ABL gene at 9q34 in a Philadelphia-negative chronic myeloid leukemia

Luís Vieira, Ana C. Alves, Bárbara Marques, Isabel Reis, Graça Jorge, Ana P. Ambrósio, Aida B. De Sousa, Maria Guida Boavida

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

We report a chronic myeloid leukemia patient without evidence of a Philadelphia (Ph) chromosome in whom RT-PCR analysis performed in blast crisis demonstrated the existence of both common b3a2 and b2a2 BCR/ABL fusion transcripts. In situ hybridization studies with BCR- and ABL-specific probes showed location of the BCR/ABL fusion gene on chromosome 9, band q34, instead of at chromosome 22q11, and that it resulted from an insertion of the 5' side of BCR within the ABL gene on chromosome 9. The vast majority of cells showed a BCR/ABL fusion gene on both chromosomes 9, which is equivalent to a double Ph chromosome, thus reinforcing the notion that the critical event in CML is the formation of a functional BCR/ABL fusion gene.

Original languageEnglish
Pages (from-to)17-21
Number of pages5
JournalCancer Genetics And Cytogenetics
Volume114
Issue number1
DOIs
Publication statusPublished - 1 Oct 1999

Fingerprint Dive into the research topics of 'Insertion of the 5' part of BCR within the ABL gene at 9q34 in a Philadelphia-negative chronic myeloid leukemia'. Together they form a unique fingerprint.

  • Cite this