PMID- 18559093 OWN - NLM STAT- MEDLINE DCOM- 20080813 LR - 20221207 IS - 1476-4598 (Electronic) IS - 1476-4598 (Linking) VI - 7 DP - 2008 Jun 17 TI - Integrative genomics analysis of chromosome 5p gain in cervical cancer reveals target over-expressed genes, including Drosha. PG - 58 LID - 10.1186/1476-4598-7-58 [doi] AB - BACKGROUND: Copy number gains and amplifications are characteristic feature of cervical cancer (CC) genomes for which the underlying mechanisms are unclear. These changes may possess oncogenic properties by deregulating tumor-related genes. Gain of short arm of chromosome 5 (5p) is the most frequent karyotypic change in CC. METHODS: To examine the role of 5p gain, we performed a combination of single nucleotide polymorphism (SNP) array, fluorescence in situ hybridization (FISH), and gene expression analyses on invasive cancer and in various stages of CC progression. RESULTS: The SNP and FISH analyses revealed copy number increase (CNI) of 5p in 63% of invasive CC, which arises at later stages of precancerous lesions in CC development. We integrated chromosome 5 genomic copy number and gene expression data to identify key target over expressed genes as a consequence of 5p gain. One of the candidates identified was Drosha (RNASEN), a gene that is required in the first step of microRNA (miRNA) processing in the nucleus. Other 5p genes identified as targets of CNI play a role in DNA repair and cell cycle regulation (BASP1, TARS, PAIP1, BRD9, RAD1, SKP2, and POLS), signal transduction (OSMR), and mitochondrial oxidative phosphorylation (NNT, SDHA, and NDUFS6), suggesting that disruption of pathways involving these genes may contribute to CC progression. CONCLUSION: Taken together, we demonstrate the power of integrating genomics data with expression data in deciphering tumor-related targets of CNI. Identification of 5p gene targets in CC denotes an important step towards biomarker development and forms a framework for testing as molecular therapeutic targets. FAU - Scotto, Luigi AU - Scotto L AD - Department of Pathology, Columbia University Medical Center, New York, New York, USA. ls339@columbia.edu FAU - Narayan, Gopeshwar AU - Narayan G FAU - Nandula, Subhadra V AU - Nandula SV FAU - Subramaniyam, Shivakumar AU - Subramaniyam S FAU - Kaufmann, Andreas M AU - Kaufmann AM FAU - Wright, Jason D AU - Wright JD FAU - Pothuri, Bhavana AU - Pothuri B FAU - Mansukhani, Mahesh AU - Mansukhani M FAU - Schneider, Achim AU - Schneider A FAU - Arias-Pulido, Hugo AU - Arias-Pulido H FAU - Murty, Vundavalli V AU - Murty VV LA - eng GR - R21 CA095647/CA/NCI NIH HHS/United States GR - CA095647/CA/NCI NIH HHS/United States PT - Journal Article PT - Multicenter Study PT - Research Support, N.I.H., Extramural DEP - 20080617 PL - England TA - Mol Cancer JT - Molecular cancer JID - 101147698 RN - EC 3.1.26.3 (DROSHA protein, human) RN - EC 3.1.26.3 (Ribonuclease III) SB - IM MH - Cell Line, Tumor MH - *Chromosomes, Human, Pair 5 MH - Colombia MH - Disease Progression MH - Female MH - *Gene Amplification MH - *Gene Expression Regulation, Neoplastic MH - *Genomics MH - Germany MH - Humans MH - In Situ Hybridization, Fluorescence MH - Neoplasm Invasiveness MH - New York MH - Oligonucleotide Array Sequence Analysis MH - Polymorphism, Single Nucleotide MH - Precancerous Conditions/*genetics/pathology MH - Reproducibility of Results MH - Ribonuclease III/*genetics MH - Transcription, Genetic MH - Uterine Cervical Neoplasms/*genetics/pathology MH - Uterine Cervical Dysplasia/*genetics/pathology PMC - PMC2440550 EDAT- 2008/06/19 09:00 MHDA- 2008/08/14 09:00 PMCR- 2008/06/17 CRDT- 2008/06/19 09:00 PHST- 2008/06/02 00:00 [received] PHST- 2008/06/17 00:00 [accepted] PHST- 2008/06/19 09:00 [pubmed] PHST- 2008/08/14 09:00 [medline] PHST- 2008/06/19 09:00 [entrez] PHST- 2008/06/17 00:00 [pmc-release] AID - 1476-4598-7-58 [pii] AID - 10.1186/1476-4598-7-58 [doi] PST - epublish SO - Mol Cancer. 2008 Jun 17;7:58. doi: 10.1186/1476-4598-7-58.