PMID- 15674345 OWN - NLM STAT- MEDLINE DCOM- 20050322 LR - 20071114 IS - 0950-9232 (Print) IS - 0950-9232 (Linking) VI - 24 IP - 9 DP - 2005 Feb 24 TI - Centromeric chromosomal translocations show tissue-specific differences between squamous cell carcinomas and adenocarcinomas. PG - 1571-9 AB - Structural chromosomal aberrations are common in epithelial tumors. Here, we compared the location of centromeric breaks associated with whole arm translocations in seven adenocarcinoma cell lines and nine squamous cell carcinoma cell lines using SKY, microarray-based comparative genomic hybridization (array CGH) and fluorescence in situ hybridization (FISH). Whole arm translocations were more frequent in squamous cell carcinomas (112 in nine cell lines and nine in one short-term culture) than in adenocarcinomas (13 in seven cases) and most often resulted in copy number alterations. Array CGH analysis demonstrated that in all squamous cell carcinomas and in most adenocarcinomas, the breakpoints of unbalanced whole arm translocations occurred between the two clones on the array flanking the centromeres. However, FISH with centromeric probes revealed that in squamous cell carcinomas, the marker chromosomes with whole arm translocations contained centromeres comprised of material from both participating chromosomes, while in adenocarcinomas centromeric material from only one of the chromosomes was present. These observations suggest that different mechanisms of centromeric instability underlie the formation of chromosomal aberrations in adenocarcinomas and squamous cell carcinomas. FAU - Hermsen, Mario AU - Hermsen M AD - Department of Pathology, VU University Medical Center, Amsterdam, The Netherlands. mhermsen@hca.es FAU - Snijders, Antoine AU - Snijders A FAU - Guervos, Marta Alonso AU - Guervos MA FAU - Taenzer, Simone AU - Taenzer S FAU - Koerner, Ulrike AU - Koerner U FAU - Baak, Jan AU - Baak J FAU - Pinkel, Daniel AU - Pinkel D FAU - Albertson, Donna AU - Albertson D FAU - van Diest, Paul AU - van Diest P FAU - Meijer, Gerrit AU - Meijer G FAU - Schrock, Evelin AU - Schrock E LA - eng GR - CA94407/CA/NCI NIH HHS/United States PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, P.H.S. PL - England TA - Oncogene JT - Oncogene JID - 8711562 SB - IM MH - Adenocarcinoma/*genetics/pathology MH - Carcinoma, Squamous Cell/*genetics/pathology MH - Cell Line, Tumor MH - Centromere/*genetics MH - Chromosome Mapping MH - Chromosomes, Human/*genetics MH - Diagnosis, Differential MH - Humans MH - In Situ Hybridization, Fluorescence MH - Karyotyping MH - Nucleic Acid Hybridization MH - Oligonucleotide Array Sequence Analysis MH - *Translocation, Genetic EDAT- 2005/01/28 09:00 MHDA- 2005/03/23 09:00 CRDT- 2005/01/28 09:00 PHST- 2005/01/28 09:00 [pubmed] PHST- 2005/03/23 09:00 [medline] PHST- 2005/01/28 09:00 [entrez] AID - 1208294 [pii] AID - 10.1038/sj.onc.1208294 [doi] PST - ppublish SO - Oncogene. 2005 Feb 24;24(9):1571-9. doi: 10.1038/sj.onc.1208294.