PMID- 9218997 OWN - NLM STAT- MEDLINE DCOM- 19970826 LR - 20191024 IS - 1045-2257 (Print) IS - 1045-2257 (Linking) VI - 19 IP - 3 DP - 1997 Jul TI - Frequent gain of copy number on the long arm of chromosome 20 in human pancreatic adenocarcinoma. PG - 161-9 AB - We have used comparative genomic hybridization (CGH) to survey genomic regions with aberrant copy numbers of DNA sequences in pancreatic adenocarcinoma. In 12 cell lines and 6 primary tumors from 18 patients with pancreatic adenocarcinomas, highly frequent losses (> 60%) were observed on chromosome arms 6q, 9p, and 18q and the Y chromosome. Moderately frequent losses (40-60%) were observed on chromosome arms 3p, 4q, 8p, and 21q. Interestingly, these samples showed extremely high frequencies of increases in copy numbers of DNA sequences on the long arm of chromosome 20 (15/18, 83%). We further analyzed five cell lines by fluorescence in situ hybridization (FISH) with probes on chromosome 20 to define the increase in copy number more accurately, and we found that 20q was increased to between 5 and 8 copies per cell. These results suggest the existence of an oncogene or oncogenes in 20q that play a role in the development and/or the progression of pancreatic carcinogenesis. FAU - Fukushige, S AU - Fukushige S AD - Department of Molecular Pathology, Tohoku University School of Medicine, Miyagi, Japan. FAU - Waldman, F M AU - Waldman FM FAU - Kimura, M AU - Kimura M FAU - Abe, T AU - Abe T FAU - Furukawa, T AU - Furukawa T FAU - Sunamura, M AU - Sunamura M FAU - Kobari, M AU - Kobari M FAU - Horii, A AU - Horii A LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Genes Chromosomes Cancer JT - Genes, chromosomes & cancer JID - 9007329 RN - 0 (DNA, Neoplasm) SB - IM MH - Adenocarcinoma/*genetics/pathology MH - Adult MH - Aged MH - Chromosome Aberrations/*genetics MH - Chromosome Banding MH - Chromosome Mapping MH - Chromosomes, Human/genetics MH - Chromosomes, Human, Pair 20/*genetics MH - DNA, Neoplasm/analysis MH - Female MH - Humans MH - In Situ Hybridization, Fluorescence MH - Male MH - Metaphase MH - Middle Aged MH - Pancreatic Neoplasms/*genetics/pathology MH - Spectrometry, Fluorescence MH - Tumor Cells, Cultured EDAT- 1997/07/01 00:00 MHDA- 2000/06/20 09:00 CRDT- 1997/07/01 00:00 PHST- 1997/07/01 00:00 [pubmed] PHST- 2000/06/20 09:00 [medline] PHST- 1997/07/01 00:00 [entrez] AID - 10.1002/(SICI)1098-2264(199707)19:3<161::AID-GCC5>3.0.CO;2-W [pii] AID - 10.1002/(sici)1098-2264(199707)19:3<161::aid-gcc5>3.0.co;2-w [doi] PST - ppublish SO - Genes Chromosomes Cancer. 1997 Jul;19(3):161-9. doi: 10.1002/(sici)1098-2264(199707)19:3<161::aid-gcc5>3.0.co;2-w.