Network-Based Identification of Biomarkers Coexpressed with Multiple Pathways

Unraveling complex molecular interactions and networks and incorporating clinical information in modeling will present a paradigm shift in molecular medicine. Embedding biological relevance via modeling molecular networks and pathways has become increasingly important for biomarker identification in...

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Main Authors: Nancy Lan Guo, Ying-Wooi Wan
Format: Article
Language:English
Published: SAGE Publishing 2014-01-01
Series:Cancer Informatics
Online Access:https://doi.org/10.4137/CIN.S14054
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author Nancy Lan Guo
Ying-Wooi Wan
author_facet Nancy Lan Guo
Ying-Wooi Wan
author_sort Nancy Lan Guo
collection DOAJ
description Unraveling complex molecular interactions and networks and incorporating clinical information in modeling will present a paradigm shift in molecular medicine. Embedding biological relevance via modeling molecular networks and pathways has become increasingly important for biomarker identification in cancer susceptibility and metastasis studies. Here, we give a comprehensive overview of computational methods used for biomarker identification, and provide a performance comparison of several network models used in studies of cancer susceptibility, disease progression, and prognostication. Specifically, we evaluated implication networks, Boolean networks, Bayesian networks, and Pearson's correlation networks in constructing gene coexpression networks for identifying lung cancer diagnostic and prognostic biomarkers. The results show that implication networks, implemented in Genet package, identified sets of biomarkers that generated an accurate prediction of lung cancer risk and metastases; meanwhile, implication networks revealed more biologically relevant molecular interactions than Boolean networks, Bayesian networks, and Pearson's correlation networks when evaluated with MSigDB database.
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spelling doaj.art-0e0cef11550548cba978a5133a7fc0ee2022-12-21T18:52:40ZengSAGE PublishingCancer Informatics1176-93512014-01-0113s510.4137/CIN.S14054Network-Based Identification of Biomarkers Coexpressed with Multiple PathwaysNancy Lan Guo0Ying-Wooi Wan1Mary Babb Randolph Cancer Center/School of Public Health, West Virginia University, Morgantown, WV, USA.Mary Babb Randolph Cancer Center/School of Public Health, West Virginia University, Morgantown, WV, USA.Unraveling complex molecular interactions and networks and incorporating clinical information in modeling will present a paradigm shift in molecular medicine. Embedding biological relevance via modeling molecular networks and pathways has become increasingly important for biomarker identification in cancer susceptibility and metastasis studies. Here, we give a comprehensive overview of computational methods used for biomarker identification, and provide a performance comparison of several network models used in studies of cancer susceptibility, disease progression, and prognostication. Specifically, we evaluated implication networks, Boolean networks, Bayesian networks, and Pearson's correlation networks in constructing gene coexpression networks for identifying lung cancer diagnostic and prognostic biomarkers. The results show that implication networks, implemented in Genet package, identified sets of biomarkers that generated an accurate prediction of lung cancer risk and metastases; meanwhile, implication networks revealed more biologically relevant molecular interactions than Boolean networks, Bayesian networks, and Pearson's correlation networks when evaluated with MSigDB database.https://doi.org/10.4137/CIN.S14054
spellingShingle Nancy Lan Guo
Ying-Wooi Wan
Network-Based Identification of Biomarkers Coexpressed with Multiple Pathways
Cancer Informatics
title Network-Based Identification of Biomarkers Coexpressed with Multiple Pathways
title_full Network-Based Identification of Biomarkers Coexpressed with Multiple Pathways
title_fullStr Network-Based Identification of Biomarkers Coexpressed with Multiple Pathways
title_full_unstemmed Network-Based Identification of Biomarkers Coexpressed with Multiple Pathways
title_short Network-Based Identification of Biomarkers Coexpressed with Multiple Pathways
title_sort network based identification of biomarkers coexpressed with multiple pathways
url https://doi.org/10.4137/CIN.S14054
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