基双甲衍生物强烈抑制人类和老鼠的11β-基类固醇脱酶1:结构-活性关系和分子对接
Hong Wang1,2, Jianmin Sang1, Zhongyao Ji1
1Department of Anaesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China.
Environmental toxicology
|January 8, 2024
概括
化双甲基 (BPA) 衍生物,包括化和化化合物,是人类和老鼠中11β-基固醇脱酶1 (11β-HSD1) 酶的强有力的抑制剂. 抑制功效取决于这些BPA衍生物的化学结构.
科学领域:
- 环境化学环境化学
- 生物化学 生物化学
- 毒理学 毒理学 毒理学
背景情况:
- 在饮用水化过程中,有双A (BPA) 衍生物形成.
- 双S (BPS) 和化BPA/BPS (TBBPA,TBBPS) 在工业上使用,例如作为阻燃剂.
- 化BPA和BPS衍生物对酶11β-基固醇脱酶1 (11β-HSD1) 的影响尚不清楚.
研究的目的:
- 研究六种BPA衍生物对人类和老鼠11β-HSD1.1.的抑制作用.
- 为了确定这些化合物的强度和抑制机制.
主要方法:
- 对六种BPA衍生物进行了体外酶抑制试验,针对人类和老鼠的11β-HSD1.1.
- 分子对接研究被用来预测人类11β-HSD1.1.的活性部位内的结合相互作用.
- 回归分析与观察到的抑制功率 (IC50值) 相关联的结合能量.
主要成果:
- 一些基BPA衍生物,包括TBBPA,MCBPA和TrCBPA,对人类和老鼠11β-HSD1.1表现出显著的抑制作用.
- 功效不同,TBBPA,MCBPA和TrCBPA是人类11β-HSD1.1的特别强大的抑制剂.
- 所有测试的BPA衍生物都作为混合/竞争性抑制剂,分子对接表明它们与酶的活性部位结合,具有结构依赖的相互作用.
结论:
- 基BPA衍生物主要是人类和老鼠11β-HSD1.1的强烈抑制剂.
- 抑制活性强烈依赖于BPA衍生物的特定化学结构.
- 这些发现突出了与暴露于化BPA衍生物相关的潜在毒理问题.
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