Cited by 60Computational Drug Discovery MethodsAnimal testing and alternativesMachine Learning in Materials Science

Computational methods for prediction of in vitro effects of new chemical structures

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Banerjee, Priyanka, Siramshetty, Vishal B., Drwal, Malgorzata N., Preissner, Robert·2016·Journal of Cheminformatics

Abstract

BACKGROUND: With a constant increase in the number of new chemicals synthesized every year, it becomes important to employ the most reliable and fast in silico screening methods to predict their safety and activity profiles. In recent years, in silico prediction methods received great attention in an attempt to reduce animal experiments for the evaluation of various toxicological endpoints, complementing the theme of replace, reduce and refine. Various computational approaches have been proposed for the prediction of compound toxicity ranging from quantitative structure activity relationship modeling to molecular similarity-based methods and machine learning. Within the "Toxicology in the 21st Century" screening initiative, a crowd-sourcing platform was established for the development and validation of computational models to predict the interference of chemical compounds with nuclear receptor and stress response pathways based on a training set containing more than 10,000 compounds tested in high-throughput screening assays. RESULTS: Here, we present the results of various molecular similarity-based and machine-learning based methods over an independent evaluation set containing 647 compounds as provided by the Tox21 Data Challenge 2014. It was observed that the Random Forest approach based on MACCS molecular fingerprints and a subset of 13 molecular descriptors selected based on statistical and literature analysis performed best in terms of the area under the receiver operating characteristic curve values. Further, we compared the individual and combined performance of different methods. In retrospect, we also discuss the reasons behind the superior performance of an ensemble approach, combining a similarity search method with the Random Forest algorithm, compared to individual methods while explaining the intrinsic limitations of the latter. CONCLUSIONS: Our results suggest that, although prediction methods were optimized individually for each modelled target, an ensemble of similarity and machine-learning approaches provides promising performance indicating its broad applicability in toxicity prediction.

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  • For active substances whose functional groups locate at ortho or meta positions, their toxicity can usually be predicted correctly with MACCS or ECFP.

    “for those active substances whose functional groups happen to locate at “ortho” or “meta” positions, their toxicity can usually be predicted correctly with MACCS or extended connectivity fingerprint (ECFP) [82].”

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Authors
Banerjee, P., Siramshetty, V. B., Drwal, M. N., & Preissner, R.
Affiliations
  • Humboldt-Universität zu Berlin (DE)
  • Freie Universität Berlin (DE)
  • Laboratoire d'Innovation Thérapeutique (FR)
Corresponding author
Drwal, Malgorzata N.
Venue
Journal of Cheminformatics
Published
2016-09-29
Volume
8
Issue
1
Pages
51-51
ISSN
1758-2946 (ISSN-L)
OpenAlex
W2525741381
Cited by
60
References
50
Citations by year
2026: 6 · 2025: 8 · 2024: 9 · 2023: 3 · 2022: 6 · 2021: 7 · 2020: 8 · 2019: 2 · 2018: 9 · 2017: 2
FWCI
3.99
Type
journal article
Language
en
Open access
Locations
  • Journal of Cheminformatics (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • MDC Repository (Max-Delbrueck-Center for Molecular Medicine) (acceptedVersion)
  • Refubium (Universitätsbibliothek der Freien Universität Berlin) (submittedVersion, cc-by)
Funders
  • Bundesministerium für Bildung und Forschung (031A262C, 031A268B)
  • Deutsche Forschungsgemeinschaft (GRK1772)
Topics
  • Physical Sciences › Computer Science › Computational Theory and Mathematics › Computational Drug Discovery Methods
  • Health Sciences › Veterinary › Small Animals › Animal testing and alternatives
  • Physical Sciences › Materials Science › Materials Chemistry › Machine Learning in Materials Science
Keywords
in silico toxicity prediction, random forest, molecular similarity search, ensemble methods, stress response pathways, Tox21, high-throughput screening, QSAR, molecular descriptors

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