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首页> 外文期刊>Journal of applied toxicology >Integrated testing and assessment approaches for skin sensitization: A commentary
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Integrated testing and assessment approaches for skin sensitization: A commentary

机译：皮肤致敏性综合测试和评估方法：评论

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摘要

A Bayesian integrated testing strategy (ITS) approach, aiming to assess skin sensitization potency, has been presented, in which data from various types of in vitro assays are integrated and assessed in combination for their ability to predict in vivo skin sensitization data. Here we discuss this approach and compare it to our quantitative mechanistic modeling (QMM) approach based on physical organic chemistry. The main findings of the Bayesian study are consistent with our chemistry-based approach and our previously published assessment of the key determinants of sensitization potency, in particular the relatively high predictive value found for chemical reactivity data and the relatively low predictive value for bioavailability parameters. As it stands at present the Bayesian approach does not utilize the full range of predictive capability that is already available, and aims only to assign potency categories rather than numerical potency values per se. In contrast, for many chemicals the QMM approach can already provide numerical potency predictions. However, the Bayesian approach may have potential for those chemicals where a chemistry modeling approach cannot provide a complete answer (e.g. pro-electrophiles whose in cutaneo activation cannot currently be modeled confidently). Nonetheless, our main message is of the importance of leveraging chemistry insights and read-across approaches to the fullest extent possible.
机译：已经提出了一种旨在评估皮肤敏化效力的贝叶斯综合测试策略（ITS）方法，其中将来自各种体外测定的数据进行整合和组合以评估其预测体内皮肤敏化数据的能力。在这里，我们讨论这种方法，并将其与基于物理有机化学的定量力学建模（QMM）方法进行比较。贝叶斯研究的主要发现与我们基于化学的方法以及我们先前发表的对致敏力关键决定因素的评估相一致，特别是对化学反应性数据的相对较高的预测值和对生物利用度参数的相对较低的预测值。就目前而言，贝叶斯方法并未利用现有的全部预测能力，而仅旨在分配效价类别，而不是数字效价值本身。相反，对于许多化学品，QMM方法已经可以提供数值效价预测。但是，对于化学建模方法无法提供完整答案的化学物质而言，贝叶斯方法可能具有潜力（例如，当前无法可靠地模拟其角鲨烷活化的亲电试剂）。尽管如此，我们的主要信息仍然是最大程度地利用化学见解和交叉阅读方法的重要性。

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