合成和评估Trehalose-Pks13抑制剂结合物,以向菌根菌为目标
Umesha Subhani S Kumbalathara A D1, Priscila Cristina Bartolomeu Halicki2, Karishma Kalera3
1Department of Chemistry and Biochemistry, University of Toledo, Toledo, OH, 43606, United States.
Carbohydrate research
|May 13, 2025
概括
将三糖与药物结合,可以增强它们对抗Mycobacterium tuberculosis (Mtb) 的能力. 这种特洛伊木马策略显示出克服mtb细胞壁障碍的希望,尽管机制需要进一步研究.
科学领域:
- 微生物学 微生物学
- 药物发现 药物发现 药物发现
- 药用化学 医学化学
背景情况:
- 结核菌 (Mycobacterium tuberculosis,Mtb) 具有独特的细胞壁,作为一个重要的透性屏障,阻碍药物开发.
- 已经确定了Mtb细胞壁中的三糖和二糖化物载体,为药物输送提供了潜在的目标.
- 疏水性菌膜对抗菌菌剂的透构成了挑战.
研究的目的:
- 调查假设,对抗Mtb活性小分子与三糖的结合可以促进选择性细胞吸收.
- 为了增强药物通过Mtb菌膜的透,或允许选择性向菌根菌.
- 评估三糖结合抑制剂的抗菌细菌活性和选择性.
主要方法:
- 使用Cu ((I) 催化亚酸基因Huisgen循环添加剂用于结合.
- 合成的三糖结合物与已知的多基化合成酶13 (Pks13) 抑制剂,包括2-氨基 (AT) 和酸 (BzF).
- 测试了合成的结合物的抗菌活性和选择性,以对抗菌根菌.
主要成果:
- 三醇结合剂显著增强了一些Pks13抑制剂的抗菌作用.
- 在某些情况下,三糖结合会通过降低毒性来提高抑制剂的选择性.
- 在Mycobacterium smegmatis (Msm) 中,醇修饰的AT衍生物的活性与LpqY-SugABC载体独立,这表明了其他吸收机制.
结论:
- 三糖结合策略显示了增强抗菌菌药物疗效和选择性的潜力.
- 通过三糖增强跨菌膜的抑制活性的精确机制需要进一步阐明.
- 未来的研究应该探索这种特洛伊木马的方法,使用不同的抑制剂化学型来克服Mtb细胞壁障碍.
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