PMID- 21734802 OWN - NLM STAT- MEDLINE DCOM- 20111027 LR - 20211020 IS - 2219-2840 (Electronic) IS - 1007-9327 (Print) IS - 1007-9327 (Linking) VI - 17 IP - 24 DP - 2011 Jun 28 TI - Genomic imbalances in esophageal carcinoma cell lines involve Wnt pathway genes. PG - 2909-23 LID - 10.3748/wjg.v17.i24.2909 [doi] AB - AIM: To identify molecular markers shared across South African esophageal squamous cell carcinoma (ESCC) cell lines using cytogenetics, fluorescence in situ hybridization (FISH) and single nucleotide polymorphism (SNP) array copy number analysis. METHODS: We used conventional cytogenetics, FISH, and multicolor FISH to characterize the chromosomal rearrangements of five ESCC cell lines established in South Africa. The whole genome copy number profile was established from 250K SNP arrays, and data was analyzed with the CNAT 4.0 and GISTIC software. RESULTS: We detected common translocation breakpoints involving chromosomes 1p11-12 and 3p11.2, the latter correlated with the deletion, or interruption of the EPHA3 gene. The most significant amplifications involved the following chromosomal regions and genes: 11q13.3 (CCND1, FGF3, FGF4, FGF19, MYEOV), 8q24.21(C-MYC, FAM84B), 11q22.1-q22.3 (BIRC2, BIRC3), 5p15.2 (CTNND2), 3q11.2-q12.2 (MINA) and 18p11.32 (TYMS, YES1). The significant deletions included 1p31.2-p31.1 (CTH, GADD45alpha, DIRAS3), 2q22.1 (LRP1B), 3p12.1-p14.2 (FHIT), 4q22.1-q32.1 (CASP6, SMAD1), 8p23.2-q11.1 (BNIP3L) and 18q21.1-q21.2 (SMAD4, DCC). The 3p11.2 translocation breakpoint was shared across four cell lines, supporting a role for genes involved at this site, in particular, the EPHA3 gene which has previously been reported to be deleted in ESCC. CONCLUSION: The finding that a significant number of genes that were amplified (FGF3, FGF4, FGF19, CCND1 and C-MYC) or deleted (SFRP2 gene) are involved in the Wnt and fibroblast growth factor signaling pathways, suggests that these pathways may be activated in these cell lines. FAU - Brown, Jacqueline AU - Brown J AD - National Health Laboratory Services and University of the Witwatersrand, York Rd, Parktown Johannesburg 2193, South Africa. jacqueline.brown@nhls.ac.za FAU - Bothma, Hannelie AU - Bothma H FAU - Veale, Robin AU - Veale R FAU - Willem, Pascale AU - Willem P LA - eng GR - Medical Research Council/United Kingdom PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - World J Gastroenterol JT - World journal of gastroenterology JID - 100883448 RN - 0 (Biomarkers, Tumor) RN - 0 (Wnt Proteins) RN - 62031-54-3 (Fibroblast Growth Factors) SB - IM MH - Biomarkers, Tumor/genetics MH - Carcinoma, Squamous Cell/*genetics MH - Cell Line, Tumor MH - Chromosome Aberrations MH - Chromosomes, Human, Pair 1/genetics MH - Chromosomes, Human, Pair 3/genetics MH - Cytogenetic Analysis MH - Esophageal Neoplasms/*genetics MH - Fibroblast Growth Factors/genetics MH - Humans MH - In Situ Hybridization, Fluorescence MH - Karyotyping MH - Polymorphism, Single Nucleotide MH - Signal Transduction/*genetics MH - Wnt Proteins/*genetics PMC - PMC3129505 OTO - NOTNLM OT - Cancer OT - Esophagus OT - Fluorescent in situ hybridization OT - Single nucleotide polymorphism arrays EDAT- 2011/07/08 06:00 MHDA- 2011/10/28 06:00 PMCR- 2011/06/28 CRDT- 2011/07/08 06:00 PHST- 2010/10/07 00:00 [received] PHST- 2010/10/30 00:00 [revised] PHST- 2010/11/06 00:00 [accepted] PHST- 2011/07/08 06:00 [entrez] PHST- 2011/07/08 06:00 [pubmed] PHST- 2011/10/28 06:00 [medline] PHST- 2011/06/28 00:00 [pmc-release] AID - 10.3748/wjg.v17.i24.2909 [doi] PST - ppublish SO - World J Gastroenterol. 2011 Jun 28;17(24):2909-23. doi: 10.3748/wjg.v17.i24.2909.