Journal
BIOINFORMATICS
Volume 35, Issue 17, Pages 3055-3062Publisher
OXFORD UNIV PRESS
DOI: 10.1093/bioinformatics/bty1054
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Funding
- National Institute of Allergy and Infectious Diseases [U19AI118608]
- National Health and Medical Research Council [NHMRC] Career Development fellowship [GNT1087415]
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Motivation: In the continuously expanding omics era, novel computational and statistical strategies are needed for data integration and identification of biomarkers and molecular signatures. We present Data Integration Analysis for Biomarker discovery using Latent cOmponents (DIABLO), a multi-omics integrative method that seeks for common information across different data types through the selection of a subset of molecular features, while discriminating between multiple phenotypic groups. Results: Using simulations and benchmark multi-omics studies, we show that DIABLO identifies features with superior biological relevance compared with existing unsupervised integrative methods, while achieving predictive performance comparable to state-of-the-art supervised approaches. DIABLO is versatile, allowing for modular-based analyses and cross-over study designs. In two case studies, DIABLO identified both known and novel multi-omics biomarkers consisting of mRNAs, miRNAs, CpGs, proteins and metabolites.
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