sAOP: linking chemical stressors to adverse outcomes pathway networks

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Alejandro Aguayo-Orozco, Karine Audouze, Troels Siggaard, Robert Barouki, Søren Brunak, Olivier Taboureau

MOTIVATION: Adverse outcome pathway (AOP) is a toxicological concept proposed to provide a mechanistic representation of biological perturbation over different layers of biological organization. Although AOPs are by definition chemical-agnostic, many chemical stressors can putatively interfere with one or several AOPs and such information would be relevant for regulatory decision-making.

RESULTS: With the recent development of AOPs networks aiming to facilitate the identification of interactions among AOPs, we developed a stressor-AOP network (sAOP). Using the "cytotoxitiy burst" (CTB) approach, we mapped bioactive compounds from the ToxCast data to a list of AOPs reported in AOP-Wiki database. With this analysis, a variety of relevant connections between chemicals and AOP components can be identified suggesting multiple effects not observed in the simplified "one-biological perturbation to one-adverse outcome" model. The results may assist in the prioritization of chemicals to assess risk-based evaluations in the context of human health.

AVAILABILITY: sAOP is available at http://saop.cpr.ku.dk.

SUPPLEMENTARY INFORMATION: Supplementary data are available at Bioinformatics online.

Original languageEnglish
JournalBioinformatics
Number of pages2
ISSN1367-4803
DOIs
Publication statusPublished - 2019

ID: 227083176