Cited by 475Cancer Genomics and DiagnosticsGene expression and cancer classificationBioinformatics and Genomic Networks

Pattern discovery and cancer gene identification in integrated cancer genomic data

Open access
Mo, Qianxing, Wang, Sijian, Seshan, Venkatraman E., Olshen, Adam B., Schultz, Nikolaus, Sander, Chris, Powers, R. Scott, Ladanyi, Marc +1 more·2013·Proceedings of the National Academy of Sciences

Abstract

Large-scale integrated cancer genome characterization efforts including the cancer genome atlas and the cancer cell line encyclopedia have created unprecedented opportunities to study cancer biology in the context of knowing the entire catalog of genetic alterations. A clinically important challenge is to discover cancer subtypes and their molecular drivers in a comprehensive genetic context. Curtis et al. [ Nature (2012) 486(7403):346–352] has recently shown that integrative clustering of copy number and gene expression in 2,000 breast tumors reveals novel subgroups beyond the classic expression subtypes that show distinct clinical outcomes. To extend the scope of integrative analysis for the inclusion of somatic mutation data by massively parallel sequencing, we propose a framework for joint modeling of discrete and continuous variables that arise from integrated genomic, epigenomic, and transcriptomic profiling. The core idea is motivated by the hypothesis that diverse molecular phenotypes can be predicted by a set of orthogonal latent variables that represent distinct molecular drivers, and thus can reveal tumor subgroups of biological and clinical importance. Using the cancer cell line encyclopedia dataset, we demonstrate our method can accurately group cell lines by their cell-of-origin for several cancer types, and precisely pinpoint their known and potential cancer driver genes. Our integrative analysis also demonstrates the power for revealing subgroups that are not lineage-dependent, but consist of different cancer types driven by a common genetic alteration. Application of the cancer genome atlas colorectal cancer data reveals distinct integrated tumor subtypes, suggesting different genetic pathways in colon cancer progression.

Integrity signals

Registry

Crossref · 10.1073/pnas.1208949110

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  • A large set of multi-omics data integrative tools and methods have been reported for the discovery of biomarkers.

    “Along with the introduction of high-throughput technologies and the availability of multi-omics data derived from a number of samples, a large set of multi-omics data integrative tools and methods have been reported for the discovery of biomarkers.”
  • These methods can be divided into categories, such as Bayesian integration, network and pathway integration, fusion-based integration, similarity-based integration, and other multivariate approaches.

    “These methods can be divided into categories, such as Bayesian integration (e.g., Pathway Recognition Algorithm using Data Integration on Genomic Models (PARADIGM) [97], iClusterPlus [98], Patient-specific data fusion (PSDF) [99]), network and pathway integration (e.g., Similarity network fusion (SNF) [100], PaintOmics [101], MultiGSEA [102], multi-omics gene-set analysis (MOGSA) [103], Cytoscape”

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Authors
Mo, Q., Wang, S., Seshan, V. E., Olshen, A. B., Schultz, N., Sander, C., Powers, R. S., Ladanyi, M., & Shen, R.
Affiliations
  • Baylor College of Medicine (US)
  • University of Wisconsin–Madison (US)
  • Department of Epidemiology and Biostatistics,
  • University of California, San Francisco (US)
  • Computational Biology Program, and
  • Cancer Genome Center, Cold Spring Harbor Laboratory, Cold Spring Harbor, NY 11797
  • Memorial Sloan Kettering Cancer Center (US)
Venue
Proceedings of the National Academy of Sciences
Published
2013-02-21
Volume
110
Issue
11
Pages
4245-4250
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2023461603
Cited by
474
References
36
Citations by year
2026: 29 · 2025: 33 · 2024: 34 · 2023: 54 · 2022: 40 · 2021: 74 · 2020: 40 · 2019: 48 · 2018: 27 · 2017: 27 · 2016: 25 · 2015: 23 · 2014: 13 · 2013: 7
FWCI
7.98
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Cold Spring Harbor Laboratory Institutional Repository (Cold Spring Harbor Laboratory) (acceptedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
Funders
National Cancer Institute (U24CA143840, CA143840, U01CA168409, P30CA008748)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer Genomics and Diagnostics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gene expression and cancer classification
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Bioinformatics and Genomic Networks
Keywords
tumor subtypes, cancer driver genes, integrative clustering, somatic mutations, copy number alterations, gene expression, Cancer Cell Line Encyclopedia, TCGA, colorectal cancer, breast cancer, cancer subtyping, cell of origin
MeSH terms
Breast Neoplasms, Female, Gene Expression Regulation, Humans, Male, Colorectal Neoplasms, Genomics, Databases, Genetic, Genes, Neoplasm, Epigenomics

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