Journal article
Transposon mutagenesis identifies candidate genes that cooperate with loss of transforming growth factor-beta signaling in mouse intestinal neoplasms
International journal of cancer, Vol.140(4), pp.853-863
02/15/2017
DOI: 10.1002/ijc.30491
PMCID: PMC5316486
PMID: 27790711
Abstract
Colorectal cancer (CRC) results from the accumulation of gene mutations and epigenetic alterations in colon epithelial cells, which promotes CRC formation through deregulating signaling pathways. One of the most commonly deregulated signaling pathways in CRC is the transforming growth factor β (TGF-β) pathway. Importantly, the effects of TGF-β signaling inactivation in CRC are modified by concurrent mutations in the tumor cell, and these concurrent mutations determine the ultimate biological effects of impaired TGF-β signaling in the tumor. However, many of the mutations that cooperate with the deregulated TGF-β signaling pathway in CRC remain unknown. Therefore, we sought to identify candidate driver genes that promote the formation of CRC in the setting of TGF-β signaling inactivation. We performed a forward genetic screen in mice carrying conditionally inactivated alleles of the TGF-β receptor, type II (Tgfbr2) using Sleeping Beauty (SB) transposon mediated mutagenesis. We used TAPDANCE and Gene-centric statistical methods to identify common insertion sites (CIS) and, thus, candidate tumor suppressor genes and oncogenes within the tumor genome. CIS analysis of multiple neoplasms from these mice identified many candidate Tgfbr2 cooperating genes and the Wnt/β-catenin, Hippo and MAPK pathways as the most commonly affected pathways. Importantly, the majority of candidate genes were also found to be mutated in human CRC. The SB transposon system provides an unbiased method to identify Tgfbr2 cooperating genes in mouse CRC that are functionally relevant and that may provide further insight into the pathogenesis of human CRC.
Details
- Title: Subtitle
- Transposon mutagenesis identifies candidate genes that cooperate with loss of transforming growth factor-beta signaling in mouse intestinal neoplasms
- Creators
- Shelli M Morris - Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WAJerry Davison - Public Health Sciences Division, Genomics and Bioinformatics Shared Resource, Fred Hutchinson Cancer Research Center, Seattle, WAKelly T Carter - Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WARachele M O'Leary - Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WAPatty Trobridge - Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WASue E Knoblaugh - Department of Veterinary Biosciences, The Ohio State University, Columbus, OHLois L Myeroff - Department of Medicine, Case Western Reserve University, Cleveland, OHSanford D Markowitz - Department of Genetics and Genome Sciences, Case Western Reserve University, Cleveland, OHBenjamin T Brett - Center for Bioinformatics and Computational Biology, University of Iowa, Iowa City, IATodd E Scheetz - Department of Ophthalmology and Visual Sciences, Roy J. & Lucille A. Carver College of Medicine, University of Iowa, Iowa City, IAAdam J Dupuy - Department of Pathology, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, IATimothy K Starr - Department of Genetics, Cell Biology & Development, University of Minnesota, Minneapolis, MNWilliam M Grady - Department of Medicine, University of Washington School of Medicine, Seattle, WA
- Resource Type
- Journal article
- Publication Details
- International journal of cancer, Vol.140(4), pp.853-863
- Publisher
- United States
- DOI
- 10.1002/ijc.30491
- PMID
- 27790711
- PMCID
- PMC5316486
- ISSN
- 0020-7136
- eISSN
- 1097-0215
- Grant note
- R35 CA197442 / NCI NIH HHS U01 CA152756 / NCI NIH HHS U54 CA163060 / NCI NIH HHS U54 CA143862 / NCI NIH HHS P50 CA150964 / NCI NIH HHS R00 CA151672 / NCI NIH HHS P30 CA015704 / NCI NIH HHS P30 CA077598 / NCI NIH HHS R01 CA194663 / NCI NIH HHS P30 CA086862 / NCI NIH HHS T32 CA080416 / NCI NIH HHS
- Language
- English
- Date published
- 02/15/2017
- Academic Unit
- Roy J. Carver Department of Biomedical Engineering; Electrical and Computer Engineering; Anatomy and Cell Biology; Pathology; Ophthalmology and Visual Sciences
- Record Identifier
- 9983979979002771
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