通过使用分子对接研究,通过不同类型的环极素提取和比较四环素抗生素的相互作用
Melika Asadian1, Roya Kiani-Anbouhi2
1Department of Chemistry, Faculty of Science, Imam Khomeini International University, Qazvin, Iran.
Scientific reports
|July 21, 2025
概括
抗生素污染是一个越来越令人担忧的问题. 这项研究使用了分子对接来研究用于提取四环素抗生素的环极素 (CDs),发现-环极素对多西环素,米诺环素和四环素最有效.
科学领域:
- 环境科学 环境科学
- 药用化学 医学化学
- 计算化学计算化学
背景情况:
- 水中的抗生素残留物对环境和人类健康构成重大危害.
- 从水中去除抗生素的有效方法对于公共卫生和生态系统保护至关重要.
- 环极素 (CDs) 显示出宿主-客人复杂化的潜力,但它们与四环素抗生素的有效性需要详细的研究.
研究的目的:
- 通过计算来评估各种环极素 (α,β和γ-CD) 与三种四环素抗生素:多西环素,米诺环素和四环素之间的相互作用和结合亲和力.
- 为了确定最佳的环氧素宿主,以有效地提取四环素抗生素.
- 为实验室实验提供基础,旨在开发基于CD的抗生素去除技术.
主要方法:
- 采用分子对接模拟来预测环素抗生素在α,β和γ-cyclodextrins腔内的结合模式和能量.
- 分析了客户主机交互,包括导向和绑定网站交互.
- 专注于结合能作为评估复杂稳定性的主要指标.
主要成果:
- 玛环氧德素 (γ-CD) 显示出对多西环素的最高结合亲和力 (结合能量为-8.1 kcal/mol).
- 与α-和β-CD相比,gamma-cyclodextrin还对米诺环素和环素 (结合能量为-7.4 kcal/mol) 产生强烈的结合.
- 阿尔法-环极素 (α-CD) 作为宿主表现最差,与研究的四环素抗生素形成稳定复合体.
结论:
- 分子对接成功地预测了四环素抗生素与环极素的优先结合,γ-CD是最有前途的宿主.
- 这些研究结果表明,基于环极素的系统,特别是使用g-CD的系统,可以从污染水中去除环素抗生素.
- 建议进行进一步的研究,包括分子动力学模拟,以验证这些发现,并评估CD抗生素复合物的长期稳定性和动力学.
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