Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5862080 | Toxicology in Vitro | 2014 | 14 Pages |
Abstract
We previously reported that LLNA thresholds could be well predicted by using an artificial neural network (ANN) model, designated iSENS ver.1 (integrating in vitro sensitization tests version 1), to analyze data obtained from two in vitro tests: the human Cell Line Activation Test (h-CLAT) and the SH test. Here, we present a more advanced ANN model, iSENS ver.2, which additionally utilizes the results of antioxidant response element (ARE) assay and the octanol-water partition coefficient (Log P, reflecting lipid solubility and skin absorption). We found a good correlation between predicted LLNA thresholds calculated by iSENS ver.2 and reported values. The predictive performance of iSENS ver.2 was superior to that of iSENS ver.1. We conclude that ANN analysis of data from multiple in vitro assays is a useful approach for risk assessment of chemicals for skin sensitization.
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Authors
Kyoko Tsujita-Inoue, Morihiko Hirota, Takao Ashikaga, Tomomi Atobe, Hirokazu Kouzuki, Setsuya Aiba,