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The 21st Century movement within the area of skin sensitization assessment : From the animal context towards current human-relevant in vitro solutions

de Ávila, Renato Ivan; Lindstedt, Malin LU and Valadares, Marize Campos (2019) In Regulatory Toxicology and Pharmacology 108.
Abstract

In a regulatory context, skin sensitization hazard and risk evaluations of manufactured products and their ingredients (e.g. cosmetics) are mandatory in several regions. Great efforts have been made within the field of 21st Century Toxicology to provide non-animal testing approaches to assess the skin allergy potential of materials (e.g. chemicals, mixtures, nanomaterials, particles). Mechanistic understanding of skin sensitization process through the adverse outcome pathway (AOP) has promoted the development of in vitro methods, demonstrating accuracies superior to the traditional animal testing. These in vitro testing approaches are based on one of the four AOP key events (KE) of skin sensitization: formation of immunogenic... (More)

In a regulatory context, skin sensitization hazard and risk evaluations of manufactured products and their ingredients (e.g. cosmetics) are mandatory in several regions. Great efforts have been made within the field of 21st Century Toxicology to provide non-animal testing approaches to assess the skin allergy potential of materials (e.g. chemicals, mixtures, nanomaterials, particles). Mechanistic understanding of skin sensitization process through the adverse outcome pathway (AOP) has promoted the development of in vitro methods, demonstrating accuracies superior to the traditional animal testing. These in vitro testing approaches are based on one of the four AOP key events (KE) of skin sensitization: formation of immunogenic hapten-protein complexes (KE-1 or the molecular initiating event, MIE), inflammatory keratinocyte responses (KE-2), dendritic cell activation (KE-3), and T-lymphocyte activation and proliferation (KE-4). This update provides an overview of the historically used in vivo methods as well as the current in chemico and in cell methods with and without OECD guideline designations to analyze the progress towards human-relevant in vitro test methods for safety assessment of the skin allergenicity potential of materials. Here our focus is to review 96 in vitro testing approaches directed to the KEs of the skin sensitization AOP.

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organization
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type
Contribution to journal
publication status
published
subject
keywords
Adverse outcome pathway, Hazard assessment, Human-relevant methods, Non-animal testing, Skin safety
in
Regulatory Toxicology and Pharmacology
volume
108
publisher
Academic Press
external identifiers
  • scopus:85071401699
ISSN
0273-2300
DOI
10.1016/j.yrtph.2019.104445
language
English
LU publication?
yes
id
ad80d29a-1ddb-42d9-a97d-25fb64635ccd
date added to LUP
2019-09-09 12:10:02
date last changed
2019-10-01 03:46:59
@article{ad80d29a-1ddb-42d9-a97d-25fb64635ccd,
  abstract     = {<p>In a regulatory context, skin sensitization hazard and risk evaluations of manufactured products and their ingredients (e.g. cosmetics) are mandatory in several regions. Great efforts have been made within the field of 21st Century Toxicology to provide non-animal testing approaches to assess the skin allergy potential of materials (e.g. chemicals, mixtures, nanomaterials, particles). Mechanistic understanding of skin sensitization process through the adverse outcome pathway (AOP) has promoted the development of in vitro methods, demonstrating accuracies superior to the traditional animal testing. These in vitro testing approaches are based on one of the four AOP key events (KE) of skin sensitization: formation of immunogenic hapten-protein complexes (KE-1 or the molecular initiating event, MIE), inflammatory keratinocyte responses (KE-2), dendritic cell activation (KE-3), and T-lymphocyte activation and proliferation (KE-4). This update provides an overview of the historically used in vivo methods as well as the current in chemico and in cell methods with and without OECD guideline designations to analyze the progress towards human-relevant in vitro test methods for safety assessment of the skin allergenicity potential of materials. Here our focus is to review 96 in vitro testing approaches directed to the KEs of the skin sensitization AOP.</p>},
  articleno    = {104445},
  author       = {de Ávila, Renato Ivan and Lindstedt, Malin and Valadares, Marize Campos},
  issn         = {0273-2300},
  keyword      = {Adverse outcome pathway,Hazard assessment,Human-relevant methods,Non-animal testing,Skin safety},
  language     = {eng},
  publisher    = {Academic Press},
  series       = {Regulatory Toxicology and Pharmacology},
  title        = {The 21st Century movement within the area of skin sensitization assessment : From the animal context towards current human-relevant in vitro solutions},
  url          = {http://dx.doi.org/10.1016/j.yrtph.2019.104445},
  volume       = {108},
  year         = {2019},
}