PMID- 10679918 OWN - NLM STAT- MEDLINE DCOM- 20000309 LR - 20071115 IS - 1045-2257 (Print) IS - 1045-2257 (Linking) VI - 27 IP - 3 DP - 2000 Mar TI - t(11;14)-positive mantle cell lymphomas exhibit complex karyotypes and share similarities with B-cell chronic lymphocytic leukemia. PG - 285-94 AB - Until now, few data on additional chromosomal aberrations in t(11;14)-positive mantle cell lymphomas (MCLs) have been published. We analyzed 39 t(11;14)-positive MCLs by either comparative genomic hybridization (CGH; n = 8), fluorescence in situ hybridization (FISH) with a set of DNA probes detecting the most frequent aberrations in B-cell neoplasms (n = 12), or both techniques (n = 19). The t(11;14) was present in all cases. In 37 of 39 cases, chromosomal imbalances were found. In 27 cases, complex karyotypes, i.e., >/= 3 aberrations, were identified. The most frequent aberrations were losses of 13q14-21 or 13q32-34 (27 cases), 9p21 (16 cases), and 11q22-23 (12 cases) and gains of 3q26-29 (19 cases), 8q22-24 (11 cases), and 18q21-22 (9 cases). In 26% of cases (7 of 27) analyzed by CGH, a total of 10 high-level DNA amplifications were identified. Although in comparison with B-cell chronic lymphopcytic leukemia (B-CLL) MCL is characterized by a much higher complexity of chromosomal aberrations, there are striking similarities: 13q14 deletions were identified in more than 50% of both MCL and B-CLL cases. In contrast, in our CGH database containing 293 B-cell lymphomas, this aberration was found in only 11% of other nodal lymphomas. Even more strikingly, 11q deletions, which are present in 20%-30 % of MCL and B-CLL, were found very rarely in other nodal B-cell lymphomas (CGH: 1 of 208 cases; FISH: 1 of 69 cases). These data show that MCL is characterized by specific secondary aberrations and that there may be similarities in the pathogenesis of MCL and B-CLL. Genes Chromosomes Cancer 27:285-294, 2000. CI - Copyright 2000 Wiley-Liss, Inc. FAU - Bentz, M AU - Bentz M AD - Abt. Innere Medizin III der Universitat Ulm, Ulm, Germany. FAU - Plesch, A AU - Plesch A FAU - Bullinger, L AU - Bullinger L FAU - Stilgenbauer, S AU - Stilgenbauer S FAU - Ott, G AU - Ott G FAU - Muller-Hermelink, H K AU - Muller-Hermelink HK FAU - Baudis, M AU - Baudis M FAU - Barth, T F AU - Barth TF FAU - Moller, P AU - Moller P FAU - Lichter, P AU - Lichter P FAU - Dohner, H AU - Dohner H LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Genes Chromosomes Cancer JT - Genes, chromosomes & cancer JID - 9007329 SB - IM MH - Aged MH - Aged, 80 and over MH - Chromosome Deletion MH - Chromosomes, Human, Pair 11/*genetics MH - Chromosomes, Human, Pair 14/*genetics MH - Female MH - Gene Amplification MH - Genes, bcl-2/genetics MH - Humans MH - In Situ Hybridization, Fluorescence MH - Interphase/genetics MH - Karyotyping MH - Leukemia, Lymphocytic, Chronic, B-Cell/*genetics/pathology MH - Lymphoma, Mantle-Cell/*genetics/pathology MH - Male MH - Middle Aged MH - Nucleic Acid Hybridization MH - Translocation, Genetic/*genetics EDAT- 2000/02/19 09:00 MHDA- 2000/03/11 09:00 CRDT- 2000/02/19 09:00 PHST- 2000/02/19 09:00 [pubmed] PHST- 2000/03/11 09:00 [medline] PHST- 2000/02/19 09:00 [entrez] AID - 10.1002/(SICI)1098-2264(200003)27:3<285::AID-GCC9>3.0.CO;2-M [pii] PST - ppublish SO - Genes Chromosomes Cancer. 2000 Mar;27(3):285-94.