title: Oncogenes without a Neighboring Tumor-Suppressor Gene Are More Prone to Amplification.
abstract: Focal copy number gains or losses are important genomic hallmarks of cancer. The genomic distribution of oncogenes and tumor-suppressor genes (TSG) in relation to focal copy number aberrations is unclear. Our analysis revealed that the mean distance of TSGs from oncogenes was significantly shorter than that of noncancer genes, suggesting that oncogenes and TSGs tend to be in close physical proximity in the human genome. Such relationship was conserved in mouse and drosophila. Pan-cancer analysis using data from The Cancer Genome Atlas indicated that oncogenes without a nearby TSG are more prone to amplification. In conclusion, our study provides evidence for the nonrandom distribution of oncogenes and TSGs across different species. Our data also support that the existence of a neighboring TSG can suppress amplification of an oncogene, shedding new light on a previously unappreciated protective mechanism of TSGs.
authors.affiliation: Institute of Digestive Diseases and Department of Medicine & Therapeutics, State Key Laboratory of Digestive Diseases, LKS Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong.|Department of Anaesthesia and Intensive Care, The Chinese University of Hong Kong, Hong Kong.
authors.forename: William K K
authors.initials: WK
authors.lastname: Wu
authors.affiliation: Institute of Digestive Diseases and Department of Medicine & Therapeutics, State Key Laboratory of Digestive Diseases, LKS Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong.
authors.forename: Xiangchun
authors.initials: X
authors.lastname: Li
authors.affiliation: Institute of Digestive Diseases and Department of Medicine & Therapeutics, State Key Laboratory of Digestive Diseases, LKS Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong.
authors.forename: Xiansong
authors.initials: X
authors.lastname: Wang
authors.affiliation: Institute of Digestive Diseases and Department of Medicine & Therapeutics, State Key Laboratory of Digestive Diseases, LKS Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong.
authors.forename: Rudin Z W
authors.initials: RZ
authors.lastname: Dai
authors.affiliation: School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong.
authors.forename: Alfred S L
authors.initials: AS
authors.lastname: Cheng
authors.affiliation: The Jockey Club School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, Hong Kong Special Administrative Region.
authors.forename: Maggie H T
authors.initials: MH
authors.lastname: Wang
authors.affiliation: Institute of Digestive Diseases and Department of Medicine & Therapeutics, State Key Laboratory of Digestive Diseases, LKS Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong.
authors.forename: Thomas
authors.initials: T
authors.lastname: Kwong
authors.affiliation: Institute of Digestive Diseases and Department of Medicine & Therapeutics, State Key Laboratory of Digestive Diseases, LKS Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong.
authors.forename: Tai C
authors.initials: TC
authors.lastname: Chow
authors.affiliation: Institute of Digestive Diseases and Department of Medicine & Therapeutics, State Key Laboratory of Digestive Diseases, LKS Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong.
authors.forename: Jun
authors.initials: J
authors.lastname: Yu
authors.affiliation: Department of Anaesthesia and Intensive Care, The Chinese University of Hong Kong, Hong Kong.
authors.forename: Matthew T V
authors.initials: MT
authors.lastname: Chan
authors.affiliation: Institute of Digestive Diseases and Department of Medicine & Therapeutics, State Key Laboratory of Digestive Diseases, LKS Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong.
authors.forename: Sunny H
authors.initials: SH
authors.lastname: Wong
mesh_terms: D000818:Animals; D030561:Databases, Nucleic Acid; D005784:Gene Amplification / Q000235:genetics*; D018628:Gene Dosage; D015972:Gene Expression Regulation, Neoplastic / Q000235:genetics; D016147:Genes, Tumor Suppressor / Q000502:physiology*; D023281:Genomics; D006801:Humans; D009154:Mutation; D009369:Neoplasms / Q000235:genetics; D009857:Oncogenes / Q000235:genetics*
keywords: amplification; copy number aberration; oncogene; tumor-suppressor gene