The recurrent t(14;19)(q32;q13) translocation associated with chronic B-cell lymphoproliferative disorders, such as atypical chronic lymphocytic leukemia, results in the juxtaposition of the IGH@ and BCL3 genes and subsequent overexpression of BCL3. We report six patients with B-cell precursor acute
t(10;11)(p13–14;q14–21): A New Recurrent Translocation in T-Cell Acute Lymphoblastic Leukemias
✍ Scribed by Groupe Français de Cytogénétique Hématologique (GFCH)
- Publisher
- John Wiley and Sons
- Year
- 1991
- Tongue
- English
- Weight
- 412 KB
- Volume
- 3
- Category
- Article
- ISSN
- 1045-2257
No coin nor oath required. For personal study only.
✦ Synopsis
A workshop held by the "Groupe Frangais de Cytogenetique Hematologique" has identified a t ( I 0 I I)(p I 3-1 4;q 14-2 I) in four acute lyrnphoblastic leukemias of T-cell lineage. The immunophenotypes were consistent with immature thymocytes. This translocation is therefore a new candidate for a recurrent translocation in early T-cell leukemia. A similar translocation has been reported as a rare change in early pre-B lymphoid leukemias and also in myeloid leukemias. It is not known whether the similar cytogenetic changes involve different molecular breakpoints or whether the same rearrangement affects a multipotential stem cell capable of lymphoid and myeloid differentiation.
📜 SIMILAR VOLUMES
The t( 1014)(q24;ql I) is observed in the leukemia cells of 5-10% of cases of T-cell acute lymphoblastic leukemia (T-ALL). Recently, molecular analyses of a number of these translocations revealed simple reciprocal translocations between the T-cell receptor delta chain gene (TCRD) and a region of IO
Ip;&-3qChromosome I I, band q23, is the frequent site of recurring cytogenetic rearrangements in human leukemia. We have cloned and sequenced the breakpoint junctions from a patient who had null-cell acute lymphoblastic leukemia (ALL) with a t( I 1;14)(q23;ql I). The chromosome 14 breakpoints occurr
The inv( I4)(q I lq32) is a non-random chromosomal aberration which has been associated with a variety of T-cell malignancies. W e have studied a case of inv( I4)(q I I q32) that is unique in several respects. First, the inversion, which is expressed at the rnRNA level, occurred in the context of a