Application of the adverse outcome pathway framework to genotoxic modes of action

Application of the adverse outcome pathway framework to genotoxic modes of action
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不良结果途径框架在遗传毒性作用模式中的应用

DOI:
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发表时间:
2020
影响因子:
2.8
通讯作者:
M. Schuler
M. Schuler
中科院分区:
环境科学与生态学3区
文献类型:
--
作者:
J. Sasaki;Ashley Allemang;Steven M. Bryce;L. Custer;K. Dearfield;Y. Dietz;A. Elhajouji;P. Escobar;A. Fornace;R. Froetschl;S. Galloway;U. Hemmann;G. Hendriks;Heng;M. Luijten;G. Ouedraogo;L. Peel;S. Pfuhler;Daniel J. Roberts;V. Thybaud;J. van Benthem;C. Yauk;M. Schuler

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2017年5月,健康与环境科学研究所遗传毒理学技术委员会主办了一次研讨会,讨论是否通过应用不良结果途径(AOP)框架来加强行动模式(MOA)调查。由于AOPS在遗传毒理学中是一种相对较新的方法,本报告通过五个实例研究描述了AOPS如何被利用来推进遗传毒性途径的MOA分析。这些建议进一步开发的遗传毒理学AOPS中的每一个都包括相关的分子启动事件、关键事件和不良结果(AO),鉴定和/或进一步开发适当的分析方法以将制剂与这些事件联系起来,以及关于建议的AOP的生物学合理性的讨论。这些建议的遗传毒理学AOPS与传统AOPS之间的一个关键区别是,与生物体或种群的不利状态相比,AO是一个在风险表征方面具有潜在意义的遗传毒理学终点。前两个详细的案例研究描述了极光激酶抑制和微管蛋白结合的暂时性AOPS,导致了常见的非整倍体AO。其余三个案例研究强调了通过间接DNA相互作用导致染色体断裂或突变的暂时性AOPS(抑制拓扑异构酶II、细胞内活性氧的产生和DNA合成的抑制)。这些案例研究作为遗传毒性AOPS的起点,最终可由更广泛的毒理学团体发表和利用,并说明将此类AOPS正规化所需的实际考虑因素和证据,以便将其应用于遗传毒性评估计划。环境。摩尔。诱变剂。61:114-134,2020。©2019威利期刊公司。
In May 2017, the Health and Environmental Sciences Institute's Genetic Toxicology Technical Committee hosted a workshop to discuss whether mode of action (MOA) investigation is enhanced through the application of the adverse outcome pathway (AOP) framework. As AOPs are a relatively new approach in genetic toxicology, this report describes how AOPs could be harnessed to advance MOA analysis of genotoxicity pathways using five example case studies. Each of these genetic toxicology AOPs proposed for further development includes the relevant molecular initiating events, key events, and adverse outcomes (AOs), identification and/or further development of the appropriate assays to link an agent to these events, and discussion regarding the biological plausibility of the proposed AOP. A key difference between these proposed genetic toxicology AOPs versus traditional AOPs is that the AO is a genetic toxicology endpoint of potential significance in risk characterization, in contrast to an adverse state of an organism or a population. The first two detailed case studies describe provisional AOPs for aurora kinase inhibition and tubulin binding, leading to the common AO of aneuploidy. The remaining three case studies highlight provisional AOPs that lead to chromosome breakage or mutation via indirect DNA interaction (inhibition of topoisomerase II, production of cellular reactive oxygen species, and inhibition of DNA synthesis). These case studies serve as starting points for genotoxicity AOPs that could ultimately be published and utilized by the broader toxicology community and illustrate the practical considerations and evidence required to formalize such AOPs so that they may be applied to genetic toxicity evaluation schemes. Environ. Mol. Mutagen. 61:114–134, 2020. © 2019 Wiley Periodicals, Inc.
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发表时间: 2006-06-27
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