Development of QSAR models for predicting hepatocarcinogenic toxicity of chemicals

Ilaria Massarelli, Marcello Imbriani, Alessio Coi, Marilena Saraceno, Niccolò Carli, Anna Maria Bianucci

Research output: Contribution to journalArticle

Abstract

A dataset comprising 55 chemicals with hepatocarcinogenic potency indices was collected from the Carcinogenic Potency Database with the aim of developing QSAR models enabling prediction of the above unwanted property for New Chemical Entities. The dataset was rationally split into training and test sets by means of a sphere-exclusion type algorithm. Among the many algorithms explored to search regression models, only a Support Vector Machine (SVM) method led to a QSAR model, which was proved to pass rigorous validation criteria, in accordance with the OECD guidelines. The proposed model is capable to explain the hepatocarcinogenic toxicity and could be exploited for predicting this property for chemicals at the early stage of their development, so optimizing resources and reducing animal testing.

Original languageEnglish
Pages (from-to)3658-3664
Number of pages7
JournalEuropean Journal of Medicinal Chemistry
Volume44
Issue number9
DOIs
Publication statusPublished - Sep 2009

Keywords

  • Carcinogenic potency database
  • Hepatocarcinogenic
  • Quantitative structure-activity relationship
  • Sphere-exclusion
  • WEKA

ASJC Scopus subject areas

  • Drug Discovery
  • Organic Chemistry
  • Pharmacology

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