基础的分子机制的综合计算分析 perfluorooctane硫酸诱导的甲状腺毒性
1Department of Pharmacy, The Second Hospital of Hebei Medical University, 215 Heping West Road, Shijiazhuang, 050000, Hebei Province, China.
Scientific reports
|March 6, 2025
概括
perfluorooctane硫酸 (PFOS) 通过影响多个点和途径来破坏甲状腺功能. 计算方法揭示了关键的分子机制,突出了其复杂的毒理影响.
科学领域:
- 环境毒理学环境毒理学
- 计算生物学 计算生物学
- 分子药理学分子药理学
背景情况:
- perfluorooctane 硫酸 (PFOS) 是一种持久性有机污染物,具有已知的内分泌干扰作用.
- 甲状腺功能对新陈代谢调节和发育至关重要,甲状腺功能受损可能对健康产生广泛的后果.
- 了解PFOS诱导的甲状腺毒性的分子机制对于风险评估至关重要.
研究的目的:
- 通过综合计算方法阐明PFOS诱导的甲状腺毒性的分子机制.
- 为了确定关键的分子标和信号通路涉及到PFOS毒性.
- 为 PFOS 甲状腺干扰的多目标和多途径性质提供新的见解.
主要方法:
- 对毒基因组学数据库 (CTD,基因卡,OMIM) 的综合分析,以确定潜在的目标.
- 蛋白质与蛋白质相互作用网络分析以确定中心毒性节点.
- 功能丰富分析以确定受影响的信号通路.
- 分子对接和分子动力学模拟以评估PFOS-蛋白相互作用和复杂稳定性.
主要成果:
- 确定了205个潜在的甲状腺毒性相关目标,其中TP53,JUN,ESR1,AKT1和CTNNB1作为中心节点.
- 在PPAR信号传递,脂肪酸代谢,AGE-RAGE和AMPK通路中显著丰富.
- 证明了PFOS与核心标蛋白的稳定结合 (结合能量为-4.9至-9.7千卡/mol).
- 分子动力学模拟证实了PFOS-AKT1和PFOS-TP53复合物的高形态稳定性.
结论:
- PFOS诱导的甲状腺毒性具有多目标和多途径相互作用的特点.
- 计算毒理学方法在阐明复杂的毒理学机制方面是有效的.
- 这些发现提供了对PFOS在分子水平上对甲状腺功能的影响的更深入的了解.
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