Back to Search
Start Over
Intralaboratory and interlaboratory evaluation of the EpiDerm™ 3D human reconstructed skin micronucleus (RSMN) assay
- Source :
-
Mutation Research - Genetic Toxicology & Environmental Mutagenesis . Mar2009, Vol. 673 Issue 2, p100-108. 9p. - Publication Year :
- 2009
-
Abstract
- Abstract: A novel in vitro human reconstructed skin micronucleus (RSMN) assay has been developed using the EpiDerm™ 3D human skin model [R. D. Curren, G. C. Mun, D. P. Gibson, and M. J. Aardema, Development of a method for assessing micronucleus induction in a 3D human skin model EpiDerm™, Mutat. Res. 607 (2006) 192–204]. The RSMN assay has potential use in genotoxicity assessments as a replacement for in vivo genotoxicity assays that will be banned starting in 2009 according to the EU 7th Amendment to the Cosmetics Directive. Utilizing EpiDerm™ tissues reconstructed with cells from four different donors, intralaboratory and interlaboratory reproducibility of the RSMN assay were examined. Seven chemicals were evaluated in three laboratories using a standard protocol. Each chemical was evaluated in at least two laboratories and in EpiDerm™ tissues from at least two different donors. Three model genotoxins, mitomycin C (MMC), vinblastine sulfate (VB) and methyl methanesulfonate (MMS) induced significant, dose-related increases in cytotoxicity and MN induction in EpiDerm™ tissues. Conversely, four dermal non-carcinogens, 4-nitrophenol (4-NP), trichloroethylene (TCE), 2-ethyl-1,3-hexanediol (EHD), and 1,2-epoxydodecane (EDD) were negative in the RSMN assay. Results between tissues reconstructed from different donors were comparable. These results indicate the RSMN assay using the EpiDerm™ 3D human skin model is a promising new in vitro genotoxicity assay that allows evaluation of chromosome damage following “in vivo-like” dermal exposures. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 13835718
- Volume :
- 673
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- Mutation Research - Genetic Toxicology & Environmental Mutagenesis
- Publication Type :
- Academic Journal
- Accession number :
- 36905021
- Full Text :
- https://doi.org/10.1016/j.mrgentox.2008.12.003