Cancer Institute A national cancer institute
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Michael Link

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  • THE T(1-14)(P34-Q11) IS NONRANDOM AND RESTRICTED TO T-CELL ACUTE LYMPHOBLASTIC-LEUKEMIA - A PEDIATRIC ONCOLOGY GROUP-STUDY BLOOD Carroll, A. J., Crist, W. M., Link, M. P., Amylon, M. D., Pullen, D. J., Ragab, A. H., Buchanan, G. R., Wimmer, R. S., Vietti, T. J. 1990; 76 (6): 1220-1224


    We report the nonrandom occurrence, frequency, and degree of immunophenotype association of the t(1;14)(p34;q11) in children with acute lymphoblastic leukemia (ALL). This chromosomal abnormality occurred in leukemia cells from 5 of 1,630 (0.3%) consecutive children with newly diagnosed ALL who were entered on a single Pediatric Oncology Group classification study (POG 8600) between January 1986 and February 1989. The frequency of the t(1;14) was 3% (5 of 168 cases) in children with T-cell ALL. All five cases had pseudodiploid karyotypes, and in 3 cases the t(1;14) was accompanied by a deletion of the long arm of chromosome 6. This translocation is of special interest because the breakpoint on chromosome 14 in band q11 corresponds to the assigned locus of the T-cell receptor alpha/delta chain gene. All five of our patients and three cases reported previously have had T-cell ALL. These findings, considered together, suggest that this translocation is specific for T-cell ALL and that a gene in the 1p34 region may play an important role in malignant transformation of thymocytes.

    View details for Web of Science ID A1990DZ19200022

    View details for PubMedID 2400810

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