PMID- 33423223 OWN - NLM STAT- MEDLINE DCOM- 20210326 LR - 20210326 IS - 1940-6029 (Electronic) IS - 1064-3745 (Linking) VI - 2240 DP - 2021 TI - Skin Sensitization Tests: The LLNA and the RhE IL-18 Potency Assay. PG - 13-29 LID - 10.1007/978-1-0716-1091-6_2 [doi] AB - Contact allergy is of considerable importance to the toxicologist, and regulatory authorities worldwide require testing for skin sensitization potential and appropriate hazard labeling to enable management of the risk to human health. Although traditionally the identification of skin-sensitizing chemicals has been carried out using animal models, in Europe legislative changes have promoted, and now require, the use of non-animal methods (i.e., Cosmetic Directive, REACH). Several in vitro alternatives for hazard identification have now been validated, but do not provide information on the potency of a skin sensitizer. Here, we describe an animal model, the local lymph node assay (LLNA), and an in vitro model, the RhE IL-18 potency assay, in the context of the identification and potency classification of skin sensitizers. These two assays have been chosen among the different available tests as representative of an alternative in vivo model (the LLNA) and a promising in vitro method with the potential of both hazard identification and potency classification. FAU - Corsini, Emanuela AU - Corsini E AD - Laboratory of Toxicology, Department of Environmental Science and Policy, Universita degli Studi di Milano, Milan, Italy. emanuela.corsini@unimi.it. FAU - Gibbs, Sue AU - Gibbs S AD - Department of Dermatology, VU University Medical Centre, ACTA, Amsterdam, The Netherlands. AD - Department of Oral Cell Biology, ACTA, Amsterdam, The Netherlands. FAU - Roggen, Erwin AU - Roggen E AD - 3Rs Management and Consultancy, Kobenhavn, Denmark. FAU - Kimber, Ian AU - Kimber I AD - Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK. FAU - Basketter, David A AU - Basketter DA AD - DABMEB Consultancy Ltd, Bedfordshire, UK. LA - eng PT - Journal Article PL - United States TA - Methods Mol Biol JT - Methods in molecular biology (Clifton, N.J.) JID - 9214969 RN - 0 (Allergens) RN - 0 (Interleukin-18) RN - 0 (Irritants) SB - IM MH - Allergens/immunology/toxicity MH - Animals MH - Cells, Cultured MH - Dermatitis, Allergic Contact/diagnosis/*etiology/immunology MH - Humans MH - Interleukin-18/*immunology MH - Irritants/immunology/toxicity MH - Keratinocytes/drug effects/immunology MH - *Local Lymph Node Assay MH - Mice MH - Primary Cell Culture/methods MH - Skin Irritancy Tests/*methods OTO - NOTNLM OT - Allergic contact dermatitis OT - Contact hypersensitivity OT - Cytokines OT - In vivo test OT - Local lymph node assay OT - Non-animal test OT - Skin OT - Skin sensitization EDAT- 2021/01/11 06:00 MHDA- 2021/03/27 06:00 CRDT- 2021/01/10 20:51 PHST- 2021/01/10 20:51 [entrez] PHST- 2021/01/11 06:00 [pubmed] PHST- 2021/03/27 06:00 [medline] AID - 10.1007/978-1-0716-1091-6_2 [doi] PST - ppublish SO - Methods Mol Biol. 2021;2240:13-29. doi: 10.1007/978-1-0716-1091-6_2.