Community Research and Development Information Service - CORDIS

FP7

The Benigni / Bossa rulebase for mutagenicity and carcinogenicity - A module of Toxtree

Funded under: FP7-JRC

Abstract

The Joint Research Centre's European Chemicals Bureau has developed a hazard estimation software called Toxtree, capable of making structure-based predictions for a number of toxicological endpoints. One of the modules developed as an extension to Toxtree is aimed at the prediction of carcinogenicity and mutagenicity. This module encodes the Benigni/Bossa rulebase for carcinogenicity and mutagenicity developed by Romualdo Benigni and Cecilia Bossa at the Istituto Superiore di Sanita', in Rome, Italy. The module was coded by the Toxtree programmer, Ideaconsult Ltd, Bulgaria. In the Toxtree implementation of this rulebase, the processing of a query chemical gives rise to limited number of different outcomes, namely: a) no structural alerts for carcinogenicity are recognised; b) one or more structural alerts (SAs) are recognised for genotoxic or non-genotoxic carcinogenicity; c) SAs relative to aromatic amines or alpha beta unsaturated aldehydes are recognised, and the chemical goes through Quantitative Structure-Activity Relationship (QSAR) analysis, which may result in a negative or positive outcome. If the query chemical belongs to the classes of aromatic amines or alpha beta unsaturated aldehydes, the appropriate QSAR is applied and provides a more refined assessment than the SAs, and should be given higher importance in a weight-of-evidence scheme. This report gives an introduction to currently available QSARs and SAs for carcinogenicity and mutagenicity, and provides details of the Benigni/Bossa rulebase.

Additional information

Authors: BENIGNI R, European Commission, Joint Research Centre, Institute for Health and Consumer Protection, Ispra (IT);BOSSA C, European Commission, Joint Research Centre, Institute for Health and Consumer Protection, Ispra (IT);JELIAZKOVA N, European Commission, Joint Research Centre, Institute for Health and Consumer Protection, Ispra (IT)
Bibliographic Reference: EUR 23241 EN (2008), various paging, Free of Charge
Availability: http://bookshop.europa.eu/is-bin/INTERSHOP.enfinity/WFS/EU-Bookshop-Site/en_GB/-/EUR/ViewPublication-Start?PublicationKey=LBNA23241 (Catalogue Number: LB-NA-23241-EN-C)
Record Number: 200819962 / Last updated on: 2008-07-28
Category: PUBLICATION
Original language: en
Available languages: en
Follow us on: RSS Facebook Twitter YouTube Managed by the EU Publications Office Top