2014
DOI: 10.1093/toxsci/kfu004
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Performance of Comet and Micronucleus Assays in Metabolic Competent HepaRG Cells to Predict In Vivo Genotoxicity

Abstract: Genetic toxicity information is critical for the safety assessment of all xenobiotics. In the absence of carcinogenicity data, genetic toxicity studies may be used to draw conclusions about the carcinogenicity potential of chemicals. However, current in vitro assays have many limitations as they produce a high rate of irrelevant positive data and possible false negative data due to the weakness of the in vitro models used. Based on the knowledge that the majority of human genotoxic carcinogens require metaboli… Show more

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Cited by 52 publications
(28 citation statements)
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“…The sensitivity of MN test was increased by implementation of cytokinesis-block (14). The MN test has an acceptable sensitivity (80%) and specificity (73%) as reported previously (15). However, in its clinical use, it may have some limitations such as inter-individual variability of MN determination and need for a laboratory capable of performing cell cultures.…”
Section: Methodssupporting
confidence: 75%
“…The sensitivity of MN test was increased by implementation of cytokinesis-block (14). The MN test has an acceptable sensitivity (80%) and specificity (73%) as reported previously (15). However, in its clinical use, it may have some limitations such as inter-individual variability of MN determination and need for a laboratory capable of performing cell cultures.…”
Section: Methodssupporting
confidence: 75%
“…The comet assay was performed as previously described (Le Hegarat et al, ). Briefly, HepG2 cells were seeded at 2.0 × 10 5 cells per well in 48‐well plates 16 hr prior to treatment.…”
Section: Methodsmentioning
confidence: 99%
“…To date, most efforts have focused on improving the in vitro comet and micronucleus assays by using human cell lines with endogenous metabolic capacities. Examples of these efforts include the use of the human hepatoma HepaRG cells, which express Phase 1 and 2 enzymes similar to primary hepatocytes (Le Hegarat et al, ), and the 3D reconstructed human skin model that contains metabolic capacity comparable to normal skin (Pfuhler et al, ). Fewer efforts have been focussed on reducing misleading positives in assays that detect gene mutations (i.e.…”
Section: Discussionmentioning
confidence: 99%