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毒性的苦面:一项大数据分析发现了trichothecenes和苦受体之间的相互作用
Lorenzo Pedroni1, Florinda Perugino2, Ambra Kurtaga1
1Department of Food and Drug, University of Parma, Parma, Italy.
Food research international (Ottawa, Ont.)
|October 7, 2023
概括
这项研究探讨了味觉受体2型成员46 (TAS2R46) 如何与有毒化合物相互作用. 研究人员发现,脱氧尼瓦伦醇 (deoxynivalenol) 是一种真菌毒素,可以激活TAS2R46,这表明它在毒性方面发挥了作用.
科学领域:
- 食品化学 食品化学 食品化学
- 毒理学 毒理学 毒理学
- 分子生物学分子生物学
背景情况:
- 通过2型味觉受体 (TAS2Rs) 介导的苦味感知有助于避免有毒化合物.
- TAS2Rs在各种组织中表达,并且具有超越味觉的功能.
- 菌类毒素,如甲,是食品污染物,引发了安全问题.
研究的目的:
- 使用计算方法调查与食品相关的有毒化合物和TAS2R46之间的相互作用.
- 在与食品有关的有毒化合物中识别潜在的TAS2R46结合剂.
- 阐明三可与TAS2R46.6之间相互作用的分子机制.
主要方法:
- 虚拟查以确定潜在的TAS2R46结合剂.
- 分子对接用于分析已识别化合物的结合模式.
- 进行分子动力学模拟,以评估TAS2R46-连接体复合物的稳定性和动力学.
主要成果:
- 虚拟查确定了菌毒素的一种类型 - - trichothecenes,作为TAS2R46.6的潜在结合剂.
- 分子对接和动力学模拟表明,脱氧尼瓦伦醇及其15-乙衍生物可以激活TAS2R46.
- 有证据表明,TAS2R46参与了脱氧尼瓦伦醇作用的机制.
结论:
- TAS2R46可能在脱氧尼瓦伦醇和相关的真菌毒素的不良影响中发挥作用.
- 需要进行进一步的研究,以探索TAS2R46和其他TAS2Rs在真菌毒素毒性的参与.
- 这项研究为了解毒素检测和反应的分子基础提供了基础.
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