PMID- 24459064 OWN - NLM STAT- MEDLINE DCOM- 20140624 LR - 20240109 IS - 1423-0380 (Electronic) IS - 1010-4283 (Linking) VI - 35 IP - 5 DP - 2014 May TI - Genomic characterization of three urinary bladder cancer cell lines: understanding genomic types of urinary bladder cancer. PG - 4599-617 LID - 10.1007/s13277-013-1604-3 [doi] AB - Several genomic regions are frequently altered and associated with the type, stage and progression of urinary bladder cancer (UBC). We present the characterization of 5637, T24 and HT1376 UBC cell lines by karyotyping, fluorescence in situ hybridization (FISH), array comparative genomic hybridization (aCGH) and multiplex ligation-dependent probe amplification (MLPA) analysis. Some cytogenetic anomalies present in UBC were found in the three cell lines, such as chromosome 20 aneuploidy and the loss of 9p21. Some gene loci losses (e.g. CDKN2A) and gains (e.g. HRAS, BCL2L1 and PTPN1) were coincident across all cell lines. Although some significant heterogeneity and complexity were detected between them, their genomic profiles exhibited a similar pattern to UBC. We suggest that 5637 and HT1376 represent the E2F3/RB1 pathway due to amplification of 6p22.3, concomitant with loss of one copy of RB1 and mutation of the remaining copy. The HT1376 presented a 10q deletion involving PTEN region and no alteration of PIK3CA region which, in combination with the inactivation of TP53, bears more invasive and metastatic properties than 5637. The T24 belongs to the alternative pathway of FGFR3/CCND1 by presenting mutated HRAS and over-represented CCND1. These cell lines cover the more frequent subtypes of UBC and are reliable models that can be used, as a group, in preclinical studies. FAU - Pinto-Leite, Rosario AU - Pinto-Leite R AD - Cytogenetic Laboratory, Department of Human Genetics, Hospital Center of Tras-os-Montes and Alto Douro, Vila Real, Portugal. FAU - Carreira, Isabel AU - Carreira I FAU - Melo, Joana AU - Melo J FAU - Ferreira, Susana Isabel AU - Ferreira SI FAU - Ribeiro, Ilda AU - Ribeiro I FAU - Ferreira, Jaqueline AU - Ferreira J FAU - Filipe, Marco AU - Filipe M FAU - Bernardo, Carina AU - Bernardo C FAU - Arantes-Rodrigues, Regina AU - Arantes-Rodrigues R FAU - Oliveira, Paula AU - Oliveira P FAU - Santos, Lucio AU - Santos L LA - eng PT - Journal Article DEP - 20140124 PL - Netherlands TA - Tumour Biol JT - Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine JID - 8409922 SB - IM MH - Apoptosis MH - Cell Line, Tumor MH - Cell Proliferation MH - Comparative Genomic Hybridization MH - Disease Progression MH - Drug Resistance, Multiple MH - Female MH - Genes, Retinoblastoma MH - Genes, p53 MH - Humans MH - In Situ Hybridization, Fluorescence MH - Karyotyping MH - Urinary Bladder Neoplasms/*genetics/pathology EDAT- 2014/01/25 06:00 MHDA- 2014/06/25 06:00 CRDT- 2014/01/25 06:00 PHST- 2013/11/19 00:00 [received] PHST- 2013/12/30 00:00 [accepted] PHST- 2014/01/25 06:00 [entrez] PHST- 2014/01/25 06:00 [pubmed] PHST- 2014/06/25 06:00 [medline] AID - 10.1007/s13277-013-1604-3 [doi] PST - ppublish SO - Tumour Biol. 2014 May;35(5):4599-617. doi: 10.1007/s13277-013-1604-3. Epub 2014 Jan 24.