TY - JOUR
T1 - Computational approaches for network-based integrative multi-omics analysis
AU - Agamah, Francis E.
AU - Bayjanov, Jumamurat R.
AU - Niehues, Anna
AU - Njoku, Kelechi F.
AU - Skelton, Michelle
AU - Mazandu, Gaston K.
AU - Ederveen, Thomas H. A.
AU - Mulder, Nicola
AU - Chimusa, Emile R.
AU - 't Hoen, Peter A. C.
N1 - Funding information: This work was partially funded by an LSH HealthHolland grant to the TWOC consortium, a large-scale infrastructure grant from the Dutch Organization of Scientific Research (NWO) to the Netherlands X-omics initiative (184.034.019), and a Horizon2020 research grant from the European Union to the EATRIS-Plusinfrastructureproject (grant agreement: No871096).
PY - 2022/11/14
Y1 - 2022/11/14
N2 - Advances in omics technologies allow for holistic studies into biological systems. These studies rely on integrative data analysis techniques to obtain a comprehensive view of the dynamics of cellular processes, and molecular mechanisms. Network-based integrative approaches have revolutionized multi-omics analysis by providing the framework to represent interactions between multiple different omics-layers in a graph, which may faithfully reflect the molecular wiring in a cell. Here we review network-based multi-omics/multi-modal integrative analytical approaches. We classify these approaches according to the type of omics data supported, the methods and/or algorithms implemented, their node and/or edge weighting components, and their ability to identify key nodes and subnetworks. We show how these approaches can be used to identify biomarkers, disease subtypes, crosstalk, causality, and molecular drivers of physiological and pathological mechanisms. We provide insight into the most appropriate methods and tools for research questions as showcased around the aetiology and treatment of COVID-19 that can be informed by multi-omics data integration. We conclude with an overview of challenges associated with multi-omics network-based analysis, such as reproducibility, heterogeneity, (biological) interpretability of the results, and we highlight some future directions for network-based integration.
AB - Advances in omics technologies allow for holistic studies into biological systems. These studies rely on integrative data analysis techniques to obtain a comprehensive view of the dynamics of cellular processes, and molecular mechanisms. Network-based integrative approaches have revolutionized multi-omics analysis by providing the framework to represent interactions between multiple different omics-layers in a graph, which may faithfully reflect the molecular wiring in a cell. Here we review network-based multi-omics/multi-modal integrative analytical approaches. We classify these approaches according to the type of omics data supported, the methods and/or algorithms implemented, their node and/or edge weighting components, and their ability to identify key nodes and subnetworks. We show how these approaches can be used to identify biomarkers, disease subtypes, crosstalk, causality, and molecular drivers of physiological and pathological mechanisms. We provide insight into the most appropriate methods and tools for research questions as showcased around the aetiology and treatment of COVID-19 that can be informed by multi-omics data integration. We conclude with an overview of challenges associated with multi-omics network-based analysis, such as reproducibility, heterogeneity, (biological) interpretability of the results, and we highlight some future directions for network-based integration.
KW - multi-omics
KW - data integration
KW - multi-modal network
KW - machine learning
KW - network diffusion/propagation
KW - network causal inference
U2 - 10.3389/fmolb.2022.967205
DO - 10.3389/fmolb.2022.967205
M3 - Review article
SN - 2296-889X
VL - 9
SP - 1
EP - 27
JO - Frontiers in Molecular Biosciences
JF - Frontiers in Molecular Biosciences
M1 - 967205
ER -