PMID- 9667665 OWN - NLM STAT- MEDLINE DCOM- 19980730 LR - 20190515 IS - 0007-0920 (Print) IS - 1532-1827 (Electronic) IS - 0007-0920 (Linking) VI - 77 IP - 11 DP - 1998 Jun TI - Cytogenetic and FISH analyses of pancreatic carcinoma reveal breaks in 18q11 with consistent loss of 18q12-qter and frequent gain of 18p. PG - 1893-9 AB - Chromosome 18 was analysed using a banding technique and fluorescence in situ hybridization (FISH) in 13 pancreatic carcinoma samples. The cytogenetic analysis revealed that chromosome 18 abnormalities were present in all cases and that several different rearrangements, such as translocations, deletions, dicentrics and ring chromosomes, were often found together. FISH mapping using 18q YAC probes showed that all tumours had lost at least one copy of 18q and that 18p was over-represented in 6 of the 13 cases. Furthermore, out of 13 identified deletion breakpoints on 18q, 11 were mapped to 18q11. The clustering of breaks close to the centromere indicates that loss of genes in bands 18q11 and 18q12, in addition to those located in 18q21, e.g. DPC4 and DCC, are important in the development of pancreatic tumours. FAU - Hoglund, M AU - Hoglund M AD - Department of Clinical Genetics, University Hospital, Lund, Sweden. FAU - Gorunova, L AU - Gorunova L FAU - Jonson, T AU - Jonson T FAU - Dawiskiba, S AU - Dawiskiba S FAU - Andren-Sandberg, A AU - Andren-Sandberg A FAU - Stenman, G AU - Stenman G FAU - Johansson, B AU - Johansson B LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Br J Cancer JT - British journal of cancer JID - 0370635 SB - IM MH - Aged MH - *Chromosome Aberrations MH - *Chromosomes, Human, Pair 18 MH - Female MH - Humans MH - *In Situ Hybridization, Fluorescence MH - Loss of Heterozygosity MH - Male MH - Middle Aged MH - Pancreatic Neoplasms/*genetics PMC - PMC2150326 EDAT- 1998/07/17 00:00 MHDA- 1998/07/17 00:01 CRDT- 1998/07/17 00:00 PHST- 1998/07/17 00:00 [pubmed] PHST- 1998/07/17 00:01 [medline] PHST- 1998/07/17 00:00 [entrez] AID - 10.1038/bjc.1998.315 [doi] PST - ppublish SO - Br J Cancer. 1998 Jun;77(11):1893-9. doi: 10.1038/bjc.1998.315.