Evaluation of an optimized protocol using human peripheral blood monocyte derived dendritic cells for the in vitro detection of sensitizers: Results of a ring study in five laboratories
| Autor: | Marie Templier, Petra Winkler, Jochem Spieker, Claire Mangez, Silke Gerlach, Hendrik Reuter, Andreas Schepky, Pierre Aeby, Horst Wenck, Cindy A. Ryan, Aurelien Mignot, Caroline Bauch, Frank Gerberick, Robert Landsiedel |
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| Rok vydání: | 2014 |
| Předmět: |
medicine.disease_cause
Toxicology Animal Testing Alternatives Monocytes medicine Humans Allergic contact dermatitis Ring study Sensitization Protocol (science) In vitro test system Local lymph node assay business.industry Monocyte derived Human dendritic cells Reproducibility of Results General Medicine Dendritic Cells Allergens medicine.disease Peripheral blood In vitro Peripheral blood monocyte derived dendritic cells medicine.anatomical_structure Allergic response Immunology Dermatitis Allergic Contact business Laboratories Skin sensitization |
| Zdroj: | Toxicology in vitro : an international journal published in association with BIBRA. 29(5) |
| ISSN: | 1879-3177 |
| Popis: | Allergic contact dermatitis is a delayed T-cell mediated allergic response associated with relevant social and economic impacts. Animal experiments (e.g. the local lymph node assay) are still supplying most of the data used to assess the sensitization potential of new chemicals. However, the 7th amendment to the EU Cosmetic Directive have introduced a testing ban for cosmetic ingredients after March 2013. We have developed and optimized a stable and reproducible in vitro protocol based on human peripheral blood monocyte derived dendritic cells to assess the sensitization potential of chemicals. To evaluate the transferability and the predictivity of this PBMDCs based test protocol, a ring study was organized with five laboratories using seven chemicals with a known sensitization potential (one none-sensitizer and six sensitizers, including one pro-hapten). The results indicated that this optimized test protocol could be successfully transferred to all participating laboratories and allowed a correct assessment of the sensitization potential of the tested set of chemicals. This should allow a wider acceptance of PBMDCs as a reliable test system for the detection of human skin sensitizers and the inclusion of this protocol in the toolbox of in vitro methods for the evaluation of the skin sensitization potential of chemicals. |
| Databáze: | OpenAIRE |
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