62 1 Journal of Molecular B B Misra et al. Approaches and tools in 62:1 R21–R45 Endocrinology integrated omics REVIEW Integrated omics: tools, advances and future approaches Biswapriya B Misra1, Carl Langefeld1,2, Michael Olivier1 and Laura A Cox1,3 1Center for Precision Medicine, Section on Molecular Medicine, Department of Internal Medicine, Wake Forest School of Medicine, Winston-Salem, North California, USA 2Department of Biostatistics, Wake Forest School of Medicine, Winston-Salem, North California, USA 3Southwest National Primate Research Center, Texas Biomedical Research Institute, San Antonio, Texas, USA Correspondence should be addressed to L A Cox:
[email protected] Abstract With the rapid adoption of high-throughput omic approaches to analyze biological Key Words samples such as genomics, transcriptomics, proteomics and metabolomics, each f integrated analysis can generate tera- to peta-byte sized data files on a daily basis. These data file f omics sizes, together with differences in nomenclature among these data types, make the f genomics integration of these multi-dimensional omics data into biologically meaningful context f transcriptomics challenging. Variously named as integrated omics, multi-omics, poly-omics, trans-omics, f proteomics pan-omics or shortened to just ‘omics’, the challenges include differences in data f metabolomics cleaning, normalization, biomolecule identification, data dimensionality reduction, f network biological contextualization, statistical validation, data storage and handling, sharing and f statistics data archiving. The ultimate goal is toward the holistic realization of a ‘systems biology’ f Bayesian understanding of the biological question. Commonly used approaches are currently f machine learning limited by the 3 i’s – integration, interpretation and insights.