Cited by 93Drug-Induced Hepatotoxicity and ProtectionComputational Drug Discovery MethodsPharmacovigilance and Adverse Drug Reactions

Data-driven identification of structural alerts for mitigating the risk of drug-induced human liver injuries

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Liu, Ruifeng, Yu, Xueping, Wallqvist, Anders·2015·Journal of Cheminformatics

Abstract

BACKGROUND: The use of structural alerts to de-prioritize compounds with undesirable features as drug candidates has been gaining in popularity. Hundreds of molecular structural moieties have been proposed as structural alerts. An emerging issue is that strict application of these alerts will result in a significant reduction of the chemistry space for new drug discovery, as more than half of the oral drugs on the market match at least one of the alerts. To mitigate this issue, we propose to apply a rigorous statistical analysis to derive/validate structural alerts before use. METHOD: To derive human liver toxicity structural alerts, we retrieved all small-molecule entries from LiverTox, a U.S. National Institutes of Health online resource for information on human liver injuries induced by prescription and over-the-counter drugs and dietary supplements. We classified the compounds into hepatotoxic, nonhepatotoxic, and possible hepatotoxic classes, and performed detailed statistical analyses to identify molecular structural fragments highly enriched in the hepatotoxic class beyond random distribution as structural alerts for human liver injuries. RESULTS: We identified 12 molecular fragments present in multiple marketed drugs that one can consider as common "drug-like" fragments, yet they are strongly associated with drug-induced human liver injuries. Thus, these fragments may be considered as robust hepatotoxicity structural alerts suitable for use in drug discovery screening programs. CONCLUSIONS: The use of structural alerts has contributed to the identification of many compounds with potential toxicity issues in modern drug discovery. However, with a large number of structural alerts published to date without proper validation, application of these alerts may restrict the chemistry space and prevent discovery of valuable drugs. To mitigate this issue, we showed how to use statistical analyses to develop a small, robust, and broadly applicable set of structural alerts. Graphical abstractHepatotoxic-specific filters for flagging high risk compounds.

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  • Development of new experimental techniques such as RNA-Seq provides new types of data for in vitro assessment of toxicities that can be used for QSAR modeling.

    “It should be emphasized that development of new experimental techniques such as deep-sequencing RNA-Seq,90 provides new types of data for in vitro assessment of toxicities that can also be used for QSAR modeling.91”

    From QSAR without borders (2020) · cites this paper as [91]

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Authors
Liu, R., Yu, X., & Wallqvist, A.
Affiliations
Telemedicine & Advanced Technology Research Center (US)
Corresponding author
  • Liu, Ruifeng
  • Wallqvist, Anders
Venue
Journal of Cheminformatics
Published
2015-02-11
Volume
7
Issue
1
Pages
4-4
ISSN
1758-2946 (ISSN-L)
OpenAlex
W2097851570
Cited by
92
References
26
Citations by year
2026: 7 · 2025: 3 · 2024: 4 · 2023: 9 · 2022: 13 · 2021: 16 · 2020: 9 · 2019: 7 · 2018: 5 · 2017: 10 · 2016: 7 · 2015: 2
FWCI
9.33
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)
Funders
  • U.S. Department of Defense
  • Defense Threat Reduction Agency (CBCall14-CBS-05-2-0007)
  • Medical Research and Materiel Command (CBCall14-CBS-05-2-0007)
Topics
  • Life Sciences › Pharmacology, Toxicology and Pharmaceutics › Pharmacology › Drug-Induced Hepatotoxicity and Protection
  • Physical Sciences › Computer Science › Computational Theory and Mathematics › Computational Drug Discovery Methods
  • Life Sciences › Pharmacology, Toxicology and Pharmaceutics › Toxicology › Pharmacovigilance and Adverse Drug Reactions
Keywords
structural alerts, drug-induced liver injury, hepatotoxicity, molecular fragments, drug-likeness, drug discovery screening, toxicity prediction, small molecule drugs

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