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Integrated Pathway Clusters with Coherent Biological Themes for Target Prioritisation

Author

Listed:
  • Yi-An Chen
  • Lokesh P Tripathi
  • Benoit H Dessailly
  • Johan Nyström-Persson
  • Shandar Ahmad
  • Kenji Mizuguchi

Abstract

Prioritising candidate genes for further experimental characterisation is an essential, yet challenging task in biomedical research. One way of achieving this goal is to identify specific biological themes that are enriched within the gene set of interest to obtain insights into the biological phenomena under study. Biological pathway data have been particularly useful in identifying functional associations of genes and/or gene sets. However, biological pathway information as compiled in varied repositories often differs in scope and content, preventing a more effective and comprehensive characterisation of gene sets. Here we describe a new approach to constructing biologically coherent gene sets from pathway data in major public repositories and employing them for functional analysis of large gene sets. We first revealed significant overlaps in gene content between different pathways and then defined a clustering method based on the shared gene content and the similarity of gene overlap patterns. We established the biological relevance of the constructed pathway clusters using independent quantitative measures and we finally demonstrated the effectiveness of the constructed pathway clusters in comparative functional enrichment analysis of gene sets associated with diverse human diseases gathered from the literature. The pathway clusters and gene mappings have been integrated into the TargetMine data warehouse and are likely to provide a concise, manageable and biologically relevant means of functional analysis of gene sets and to facilitate candidate gene prioritisation.

Suggested Citation

  • Yi-An Chen & Lokesh P Tripathi & Benoit H Dessailly & Johan Nyström-Persson & Shandar Ahmad & Kenji Mizuguchi, 2014. "Integrated Pathway Clusters with Coherent Biological Themes for Target Prioritisation," PLOS ONE, Public Library of Science, vol. 9(6), pages 1-11, June.
  • Handle: RePEc:plo:pone00:0099030
    DOI: 10.1371/journal.pone.0099030
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    References listed on IDEAS

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