期刊
METABOLITES
卷 11, 期 3, 页码 -出版社
MDPI
DOI: 10.3390/metabo11030184
关键词
data integration; multi-omics; integration strategies; genomics
Metabolomics explores the intricate chemical reactions within living organisms and how they are affected by internal and external factors, providing valuable insights into biological functions and mechanisms. Integrating metabolomics data with genomics, transcriptomics, and proteomics information offers unprecedented opportunities for in-depth analysis and discovery of hidden relationships between omics variables.
Metabolomics deals with multiple and complex chemical reactions within living organisms and how these are influenced by external or internal perturbations. It lies at the heart of omics profiling technologies not only as the underlying biochemical layer that reflects information expressed by the genome, the transcriptome and the proteome, but also as the closest layer to the phenome. The combination of metabolomics data with the information available from genomics, transcriptomics, and proteomics offers unprecedented possibilities to enhance current understanding of biological functions, elucidate their underlying mechanisms and uncover hidden associations between omics variables. As a result, a vast array of computational tools have been developed to assist with integrative analysis of metabolomics data with different omics. Here, we review and propose five criteria-hypothesis, data types, strategies, study design and study focus- to classify statistical multi-omics data integration approaches into state-of-the-art classes under which all existing statistical methods fall. The purpose of this review is to look at various aspects that lead the choice of the statistical integrative analysis pipeline in terms of the different classes. We will draw particular attention to metabolomics and genomics data to assist those new to this field in the choice of the integrative analysis pipeline.
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