相关实验视频

Updated: Jul 5, 2026

An In Vitro Skin Irritation Test SIT using the EpiDerm Reconstructed Human Epidermal RHE Model

An In Vitro Skin Irritation Test SIT using the EpiDerm Reconstructed Human Epidermal RHE Model

Published on: July 13, 2009

基于阅读交叉 (RAx) 的皮肤敏感性强度预测,结合基于RhE的测试策略 (RTSv1) 定义的方法:基于RTSv1的RAx

Sho Suzuki¹, Hideyuki Mizumachi¹, Masaaki Miyazawa¹

¹Safety Science Research, Kao Corporation, Tochigi, Japan.

Journal of applied toxicology : JAT

|December 2, 2024

概括

结合重建的人类表皮检测与读横 (基于RTSv1的RAx) 的新策略,改善了皮肤敏感性强度预测. 这种方法提高了化学品分类和定量风险评估的准确性,解决了以前非动物方法的局限性.

科学领域:

毒理学毒理学毒理学
皮肤病学皮肤病学
化学安全化学安全

背景情况:

由于监管和道德要求,皮肤敏感化的非动物方法至关重要.
重建的人类表皮检测策略版本1 (RTSv1) 定义的方法 (DA) 将功效分类,但在预测EC3值方面存在局限性,导致预测不足.
交叉阅读 (RAx) 可以提高预测信心,但当与新方法方法相结合时,缺乏强大,全面的策略.

研究的目的:

开发和评估一个强大的策略,将RTSv1 DA与RAx (基于RTSv1的RAx) 结合起来,用于预测皮肤敏感性强度.
评估基于RTSv1的RAx的可靠性和预测性能,与RTSv1 DA和局部淋巴结测定 (LLNA) 相比.

主要方法:

开发了一种基于RTSv1的新型RAx策略,并应用于43种化学品.
通过将GHS分类和EC3值预测与RTSv1 DA和LLNA数据进行比较来评估预测性能.

主要成果:

基于RTSv1的RAx准确地预测了全球协调分类系统 (GHS) 对43种化学品中的38种化学品的分类.
17种敏感剂的预测EC3值在LLNA衍生值的四倍范围内.
该战略显示,预测的信心和可靠性得到了改善.

结论:

基于RTSv1的RAx提供了对皮肤敏感性强度的强大预测能力,包括GHS分类和EC3值.
这种综合方法为化学品安全评估中的定量风险评估提供了有价值的工具.
开发的战略解决了独立的DA方法的局限性,并提高了皮肤敏感性非动物测试的可靠性.

关键词:

这是一个EpiSensAA.基于 RhE 的测试策略.脂性化学物质脂性化学物质强度预测强度预测阅读交叉的阅读方式皮肤敏感化皮肤敏感化

更多相关视频

Assessment of the Cytotoxic and Immunomodulatory Effects of Substances in Human Precision-cut Lung Slices

Assessment of the Cytotoxic and Immunomodulatory Effects of Substances in Human Precision-cut Lung Slices

Published on: May 9, 2018

Humanized Mediator Release Assay as a Read-Out for Allergen Potency

Humanized Mediator Release Assay as a Read-Out for Allergen Potency

Published on: June 29, 2021

相关概念视频

Drug Toxicity: Allergic Reactions

Drug Toxicity: Allergic Reactions

Drug-related allergies are immune-mediated responses triggered by the administration of pharmacological agents. These hypersensitivity reactions are classified based on the immune mechanisms involved. The four primary types—Type I, II, III, and IV—are mediated by different immunological pathways and exhibit distinct clinical manifestations.Type I Hypersensitivity/ IgE-Mediated Reactions: Immunoglobulin E (IgE) immediately mediates Type I hypersensitivity reactions. Upon initial exposure to a...

Toxicity Testing in Animals

Toxicity Testing in Animals

Toxicity tests in animals are grounded on two main assumptions: first, the effects observed in laboratory animals can be extrapolated to humans, especially when adjusted for body surface area; second, high-dose exposure in animals is essential to identify potential human hazards from lower doses. This is based on the quantal dose-response concept, which faces the challenge of extrapolating results from relatively few test animals to much larger human populations. For example, a 0.01% incidence...