PMID- 17654336 OWN - NLM STAT- MEDLINE DCOM- 20071113 LR - 20191210 IS - 1062-936X (Print) IS - 1026-776X (Linking) VI - 18 IP - 5-6 DP - 2007 Jul-Sep TI - An evaluation of selected global (Q)SARs/expert systems for the prediction of skin sensitisation potential. PG - 515-41 AB - Skin sensitisation potential is an endpoint that needs to be assessed within the framework of existing and forthcoming legislation. At present, skin sensitisation hazard is normally identified using in vivo test methods, the favoured approach being the local lymph node assay (LLNA). This method can also provide a measure of relative skin sensitising potency which is essential for assessing and managing human health risks. One potential alternative approach to skin sensitisation hazard identification is the use of (Quantitative) structure activity relationships ((Q)SARs) coupled with appropriate documentation and performance characteristics. This represents a major challenge. Current thinking is that (Q)SARs might best be employed as part of a battery of approaches that collectively provide information on skin sensitisation hazard. A number of (Q)SARs and expert systems have been developed and are described in the literature. Here we focus on three models (TOPKAT, Derek for Windows and TOPS-MODE), and evaluate their performance against a recently published dataset of 211 chemicals. The current strengths and limitations of one of these models is highlighted, together with modifications that could be made to improve its performance. Of the models/expert systems evaluated, none performed sufficiently well to act as a standalone tool for hazard identification. FAU - Patlewicz, G AU - Patlewicz G AD - European Chemicals Bureau TP582, IHCP, Joint Research Centre, European Commission, Ispra, Italy. grace.patlewicz@jrc.it FAU - Aptula, A O AU - Aptula AO FAU - Uriarte, E AU - Uriarte E FAU - Roberts, D W AU - Roberts DW FAU - Kern, P S AU - Kern PS FAU - Gerberick, G F AU - Gerberick GF FAU - Kimber, I AU - Kimber I FAU - Dearman, R J AU - Dearman RJ FAU - Ryan, C A AU - Ryan CA FAU - Basketter, D A AU - Basketter DA LA - eng PT - Evaluation Study PT - Journal Article PL - England TA - SAR QSAR Environ Res JT - SAR and QSAR in environmental research JID - 9440156 RN - 0 (Alkanes) RN - 0 (Ketones) SB - IM MH - Alkanes/chemistry/toxicity MH - Computer Simulation MH - Humans MH - Ketones/chemistry/toxicity MH - *Local Lymph Node Assay MH - Models, Biological MH - Models, Chemical MH - *Quantitative Structure-Activity Relationship MH - Risk Assessment/methods MH - Sensitivity and Specificity MH - Skin Tests MH - Software EDAT- 2007/07/27 09:00 MHDA- 2007/11/14 09:00 CRDT- 2007/07/27 09:00 PHST- 2007/07/27 09:00 [pubmed] PHST- 2007/11/14 09:00 [medline] PHST- 2007/07/27 09:00 [entrez] AID - 780729133 [pii] AID - 10.1080/10629360701427872 [doi] PST - ppublish SO - SAR QSAR Environ Res. 2007 Jul-Sep;18(5-6):515-41. doi: 10.1080/10629360701427872.