双类类似物抑制人类和老鼠的17β-基类固醇脱酶1: 3D-定量结构-活性关系 (3D-QSAR) 和in silico对接分析
Sailing Chen1, Shaowei Wang1, Jingyi Zheng2
1Department of Obstetrics and Gynecology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China.
某些双醇抑制了17β-基类固醇脱酶1 (17β-HSD1) 酶,这对于雌激素的产生至关重要. 这项研究确定了影响这种抑制的关键结构因素,为内分泌干扰机制提供了洞察力.
科学领域:
- 内分泌学 在内分泌学.
- 毒理学 毒理学 毒理学
- 生物化学 生物化学
背景情况:
- 双是干扰激素路径的内分泌干扰化学物质.
- 17β-Hydroxysteroid脱酶1 (17β-HSD1) 是雌激醇合成中的一个关键酶.
- 双对17β-HSD1的抑制作用及其机制尚不清楚.
研究的目的:
- 选17 bisphenols,以检测它们对人类和老鼠17β-HSD1.1的抑制活性.
- 阐明双抑制的作用模式和结构-活性关系.
- 为了比较人类和老鼠17β-HSD1对双抑制的敏感性.
主要方法:
- 使用人类胎盘和大鼠卵巢显微体进行酶抑制测定.
- 三维定量结构-活动关系 (3D-QSAR) 建模.
- 分子对接分析以确定结合相互作用.
主要成果:
- 几种被替代的双醇显著抑制了人类和老鼠的17β-HSD1.
- 与双H (IC50 = 113.38 μM) 相比,双H显示出人类17β-HSD1的强烈抑制 (IC50 = 0.90 μM).
- 人类17β-HSD1对抑制比老鼠酶更敏感;双H的IC50在老鼠中为32.94μM.
- 抑制显示出与疏水性 (Log P) 的反相关性.
- 对接揭示了双醇与17β-HSD1.1的类固醇结合部位结合.
- 3D-QSAR确定了疏水区域,芳香度和键受体作为抑制的关键.
结论:
- 双可以抑制17β-HSD1,影响雌激素合成.
- 双的疏水性和特定的结构特征是抑制功效的关键决定因素.
- 这些发现有助于了解双醇对内分泌干扰的机制.
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