PMID- 23652995 OWN - NLM STAT- MEDLINE DCOM- 20140129 LR - 20211021 IS - 1573-4978 (Electronic) IS - 0301-4851 (Linking) VI - 40 IP - 7 DP - 2013 Jul TI - Heterogeneity of 11q13 region rearrangements in laryngeal squamous cell carcinoma analyzed by microarray platforms and fluorescence in situ hybridization. PG - 4161-71 LID - 10.1007/s11033-013-2496-4 [doi] AB - We reinvestigated rearrangements occurring in region q13 of chromosome 11 aiming to: (i) describe heterogeneity of the observed structural alterations, (ii) estimate amplicon size and (iii) identify of oncogenes involved in laryngeal cancer progression as potential targets for therapy. The study included 17 cell lines derived from laryngeal cancers and 34 specimens from primary laryngeal tumors. The region 11q13 was analyzed by fluorescence in situ hybridization (FISH), array comparative genomic hybridization (aCGH) and gene expression microarray. Next, quantitative real time PCR was used for chosen genes to confirm results from aCGH and gene expression microarray. The observed pattern of aberrations allows to distinguish three ways, in which gain and amplification involving 11q13 region may occur: formation of a homogeneously staining region; breakpoints in/near 11q13, which lead to the three to sevenfold increase of the copy number of 11q13 region; the presence of additional copies of the whole chromosome 11. The minimal altered region of gain and/or amplification was limited to ~1.8 Mb (chr.11:69,395,184-71,209,568) and comprised mostly 11q13.3 band which contain 12 genes. Five, out of these genes (CCND1, ORAOV1, FADD, PPFIA1, CTTN) had higher expression levels in comparison to healthy controls. Apart from CCND1 gene, which has an established role in pathogenesis of head and neck cancers, CTTN, ORAOV1 and FADD genes appear to be oncogene-candidates in laryngeal cancers, while a function of PPFIA1 requires further studies. FAU - Jarmuz-Szymczak, Malgorzata AU - Jarmuz-Szymczak M AD - Institute of Human Genetics, Polish Academy of Sciences, Strzeszynska 32, 60-479, Poznan, Poland. maljar@man.poznan.pl FAU - Pelinska, Kinga AU - Pelinska K FAU - Kostrzewska-Poczekaj, Magdalena AU - Kostrzewska-Poczekaj M FAU - Bembnista, Ewa AU - Bembnista E FAU - Giefing, Maciej AU - Giefing M FAU - Brauze, Damian AU - Brauze D FAU - Szaumkessel, Marcin AU - Szaumkessel M FAU - Marszalek, Andrzej AU - Marszalek A FAU - Janiszewska, Joanna AU - Janiszewska J FAU - Kiwerska, Katarzyna AU - Kiwerska K FAU - Bartochowska, Anna AU - Bartochowska A FAU - Grenman, Reidar AU - Grenman R FAU - Szyfter, Witold AU - Szyfter W FAU - Szyfter, Krzysztof AU - Szyfter K LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20130508 PL - Netherlands TA - Mol Biol Rep JT - Molecular biology reports JID - 0403234 SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - Carcinoma, Squamous Cell/*genetics/pathology MH - Cell Line, Tumor MH - *Chromosomes, Human, Pair 11 MH - Cluster Analysis MH - Comparative Genomic Hybridization MH - Female MH - Gene Dosage MH - Gene Expression Profiling MH - Gene Expression Regulation, Neoplastic MH - *Gene Rearrangement MH - Humans MH - In Situ Hybridization, Fluorescence MH - Laryngeal Neoplasms/*genetics/pathology MH - Male MH - Middle Aged EDAT- 2013/05/09 06:00 MHDA- 2014/01/30 06:00 CRDT- 2013/05/09 06:00 PHST- 2013/02/16 00:00 [received] PHST- 2013/04/24 00:00 [accepted] PHST- 2013/05/09 06:00 [entrez] PHST- 2013/05/09 06:00 [pubmed] PHST- 2014/01/30 06:00 [medline] AID - 10.1007/s11033-013-2496-4 [doi] PST - ppublish SO - Mol Biol Rep. 2013 Jul;40(7):4161-71. doi: 10.1007/s11033-013-2496-4. Epub 2013 May 8.