Analysing the structure of pathways and its influence on the interpretation of biomedical datasets

Author:

Burger Bram,Hernández Sánchez Luis Francisco,Lereim Ragnhild Reehorst,Barsnes Harald,Vaudel Marc

Abstract

SummaryBiochemical pathways are commonly used as a reference to conduct functional analysis on biomedical omics datasets, where experimental results are mapped to knowledgebases comprising known molecular interactions collected from the literature. Due to their central role, the content of the functional knowledgebases directly influences the outcome of pathway analyses. In this study, we investigate the structure of the current pathway knowledge, as exemplified by Reactome, discuss the consequences for biological interpretation, and outline possible improvements in the use of pathway knowledgebases. By providing a view of the underlying network structure, we aim to help pathway analysis users manage their expectations and better identify possible artefacts in the results.

Publisher

Cold Spring Harbor Laboratory

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