PMID- 12072201 OWN - NLM STAT- MEDLINE DCOM- 20020724 LR - 20190816 IS - 0165-4608 (Print) IS - 0165-4608 (Linking) VI - 135 IP - 1 DP - 2002 May TI - Spectrum of genetic changes in gastro-esophageal cancer cell lines determined by an integrated molecular cytogenetic approach. PG - 35-41 AB - Adenocarcinomas arising around the gastro-esophageal junction (GEJ) are highly malignant, and their incidence has risen rapidly in the last decades. Cell lines are the basic in vitro system for functional and therapeutic studies in GEJ tumors, but only a small number of cell lines are currently available, and none of them has been fully karyotyped. We analyzed 5 GEJ tumor cell lines using a combination of 24-color fluorescence in situ hybridization (FISH), comparative genomic hybridization (CGH) and genomic microarrays. Using CGH we demonstrated that these cell lines present imbalances similar to those we had previously observed in primary GEJ tumors, namely gains on 1q, 7q, 8q, 17q, 19q, 20, and X, and losses on 3p, 4, 5q, 9p, 18q, and 21. Multicolor FISH karyotyping revealed multiple structural rearrangements involving chromosomes 1, 5, 6, 7, 8, 9, 13, 17, 18, and 22. Rearrangements of chromosome 8 involved 10 different chromosomes, while rearrangements of chromosome 17 involved 5. Different rearrangements resulted in imbalances of similar chromosome regions, suggesting that similar genomic imbalances are constitutively important but are achieved through different pathways. The use of a commercially available genomic array excluded TOP2A (17q), and MYBL2, PTPT1, CSE1L, and ZNF217 (20q) as candidate genes for frequently amplified areas on these chromosomes, and contributed to refining the limits of chromosome regions involved in genomic imbalances. FAU - Rosenberg, Carla AU - Rosenberg C AD - Laboratory of Cytochemistry and Cytometry, Department Molecular Cell Biology, Leiden University Medical Center (LUMC), Leiden, The Netherlands. c.rosenberg@lumc.nl FAU - Geelen, Eric AU - Geelen E FAU - IJszenga, Marije J AU - IJszenga MJ FAU - Pearson, Peter AU - Pearson P FAU - Tanke, Hans J AU - Tanke HJ FAU - Dinjens, Winand N M AU - Dinjens WN FAU - van Dekken, Herman AU - van Dekken H LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Cancer Genet Cytogenet JT - Cancer genetics and cytogenetics JID - 7909240 RN - 0 (Neoplasm Proteins) SB - IM MH - Adenocarcinoma/*genetics/pathology MH - Aneuploidy MH - *Chromosome Aberrations MH - Chromosomes, Human/*genetics/ultrastructure MH - Esophageal Neoplasms/*genetics/pathology MH - Esophagogastric Junction/*pathology MH - Gene Amplification MH - Gene Expression Profiling MH - Humans MH - *In Situ Hybridization, Fluorescence MH - Karyotyping MH - Neoplasm Proteins/biosynthesis/genetics MH - *Nucleic Acid Hybridization MH - *Oligonucleotide Array Sequence Analysis MH - Stomach Neoplasms/*genetics/pathology MH - Tumor Cells, Cultured EDAT- 2002/06/20 10:00 MHDA- 2002/07/26 10:01 CRDT- 2002/06/20 10:00 PHST- 2002/06/20 10:00 [pubmed] PHST- 2002/07/26 10:01 [medline] PHST- 2002/06/20 10:00 [entrez] AID - S0165460801006392 [pii] AID - 10.1016/s0165-4608(01)00639-2 [doi] PST - ppublish SO - Cancer Genet Cytogenet. 2002 May;135(1):35-41. doi: 10.1016/s0165-4608(01)00639-2.