设计,合成和评价化酶抗菌前药物,向酸还原酶激活
Ke Liu1, Tao Xiao1, Hongfen Yang1
1Department of Medicinal Chemistry, Center for Natural Products, Drug Discovery and Development (CNPD3), College of Pharmacy, University of Florida Gainesville Florida 32610 USA rhuigens@cop.ufl.edu.
RSC medicinal chemistry
|August 18, 2023
概括
开发了新的化氨酸 (HP) 前药,以对抗抗生素耐药性. 这些基于烯的化合物被缩酶 (NTR) 酶激活,释放出对抗耐药细菌有效的强效HP剂.
科学领域:
- 药用化学 医学化学
- 发现抗微生物药物 发现抗微生物药物
- 有机合成 有机合成
背景情况:
- 抗生素耐药性对全球健康构成重大威胁,需要新的治疗策略.
- 基酶 (HP) 类似物对抗多药耐药细菌病原体具有高活性.
- 现有的HP化合物可能面临诸如非目标金属化和不良代谢等挑战.
研究的目的:
- 设计和合成基于酸的新型HP前药物.
- 通过细菌缩酶 (NTR) 酶,实现活性HP剂的向性,细胞内释放.
- 改善前药物特性,如水溶性和代谢稳定性,同时降低毒性.
主要方法:
- 合成含有硫酸链接剂的HP-尼托烯前药物.
- 在实验室评估NTR促进的活性HP剂的释放.
- 使用MIC和抑制区测定对细菌菌株和临床分离物的抗菌活性的评估.
主要成果:
- 产品药HP-1-N在NTR激活后16小时内证明了原始HP-1 (70.1%) 的有效释放.
- 在没有NTR的情况下观察到最小的HP释放 (<7%),表明前药特异性.
- 缺乏基组的对照化合物没有产生HP释放.
- 亚烯前药物表现出与原始HP化合物相比的抗菌活性,对抗性细菌具有抗药性.
结论:
- 基于酸的HP前药被NTR有效激活,释放出强大的抗菌剂.
- 这些前药物为克服现有HP化合物的局限性提供了一个有希望的策略.
- 惠普-尼托原原药是对抗抗生素耐药细菌的潜在新型治疗药物.
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