Genomic organization of the translocations (8;14) and (14;18) in a new lymphoma cell line.

Autor: Lambrechts AC; Department of Molecular Biology, Dr. Daniel den Hoed Cancer Center, Rotterdam, The Netherlands., Dorssers LC, Hupkes PE, van Gurp R, Baumgarten R, Hagemeijer A, van 't Veer MB, Touw IP
Jazyk: angličtina
Zdroj: Leukemia [Leukemia] 1994 Jul; Vol. 8 (7), pp. 1164-71.
Abstrakt: We generated a new lymphoma cell line carrying the translocations (8;14) and (14;18) and studied the genomic organization and expression of the BCL-2 and MYC genes. Polymerase chain reaction (PCR) and Southern analysis showed that the breakpoints of t(14;18) were located in the major breakpoint region (mbr) of the BCL-2 gene and just 5' of JH6 in the IgH locus. The breakpoints of the t(8;14) were located upstream of exon 2 in the non-coding region of the MYC gene and near the switch region of the IgH locus. Both IgH loci were involved in chromosomal translocations resulting in the absence of a functional B-cell receptor. Normal BCL-2 and truncated MYC transcripts were detected in these cells. The BCL-2 protein was expressed.
Databáze: MEDLINE