Cited by 105Bioinformatics and Genomic NetworksCancer Genomics and DiagnosticsGenomics and Rare Diseases

NetSig: network-based discovery from cancer genomes

Open access
Horn, Heiko, Lawrence, Michael S, Chouinard, Candace R, Shrestha, Yashaswi, Hu, Jessica Xin, Worstell, Elizabeth, Shea, Emily, Ilic, Nina +8 more·2018·Nature Methods

Published version of a preprint

Abstract

Methods that integrate molecular network information and tumor genome data could complement gene-based statistical tests to identify likely new cancer genes; but such approaches are challenging to validate at scale, and their predictive value remains unclear. We developed a robust statistic (NetSig) that integrates protein interaction networks with data from 4,742 tumor exomes. NetSig can accurately classify known driver genes in 60% of tested tumor types and predicts 62 new driver candidates. Using a quantitative experimental framework to determine in vivo tumorigenic potential in mice, we found that NetSig candidates induce tumors at rates that are comparable to those of known oncogenes and are ten-fold higher than those of random genes. By reanalyzing nine tumor-inducing NetSig candidates in 242 patients with oncogene-negative lung adenocarcinomas, we find that two (AKT2 and TFDP2) are significantly amplified. Our study presents a scalable integrated computational and experimental workflow to expand discovery from cancer genomes.

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  • Network analysis provides an organizing framework that can divide large gene sets into biologically coherent modules for prioritization or add power to genome-wide association studies.

    “network analysis provides an organizing framework that can divide large gene sets into biologically coherent modules for prioritization (Parikshak et al., 2015; Parikshak et al., 2013), or add power to GWAS (Horn et al., 2018)”

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Authors
Horn, H., Lawrence, M. S., Chouinard, C. R., Shrestha, Y., Hu, J. X., Worstell, E., Shea, E., Ilic, N., Kim, E., Kamburov, A., Kashani, A., Hahn, W. C., Campbell, J. D., Boehm, J. S., Getz, G., & Lage, K.
Affiliations
Broad Institute (US)
Corresponding author
  • Boehm, Jesse S
  • Getz, Gad
  • Lage, Kasper
Venue
Nature Methods
Published
2017-12-04
Volume
15
Issue
1
Pages
61-66
ISSN
  • 1548-7091 (ISSN-L)
  • 1548-7105
OpenAlex
W2772435237
Cited by
105
References
36
Citations by year
2026: 2 · 2025: 2 · 2024: 8 · 2023: 8 · 2022: 15 · 2021: 22 · 2020: 23 · 2019: 13 · 2018: 12
FWCI
5.36
Type
journal article
Language
en
Open access
Licence
Locations
  • Nature Methods (publishedVersion)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • Digital Access to Scholarship at Harvard (DASH) (Harvard University) (submittedVersion, cc-by)
Funders
  • LUNGevity Foundation
  • Massachusetts General Hospital
  • Broad Institute
  • Simons Foundation Autism Research Initiative
  • Lundbeckfonden (R223-2016-721, R170-2014-1039)
  • H. Lundbeck A/S
  • Stanley Center for Psychiatric Research, Broad Institute (Broadnext10)
  • National Institute of Mental Health (R01MH109903)
  • National Cancer Institute (R01CA130988)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Bioinformatics and Genomic Networks
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer Genomics and Diagnostics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genomics and Rare Diseases
Keywords
cancer driver genes, protein-protein interaction network, network-based statistics, AKT2, gene amplification, oncogene discovery
MeSH terms
Humans, Mutation, Neoplasm Proteins, Neoplasms, Gene Expression Regulation, Neoplastic, Computational Biology, Gene Regulatory Networks, Carcinogenesis

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