Zidovudine-β-Lactam Pronucleoside Strategy for Selective Delivery into Gram-Negative Bacteria Triggered by β-Lactamases
作者:Miyanou Rosales-Hurtado、Filomena Sannio、Lindita Lari、Federica Verdirosa、Georges Feller、Elodie Carretero、Yen Vo-Hoang、Patricia Licznar-Fajardo、Jean-Denis Docquier、Laurent Gavara
DOI:10.1021/acsinfecdis.3c00110
日期:2023.8.11
cleavage by β-lactamases to selectively trigger antibacterial prodrugs into the bacterial periplasm. Indeed, multidrug-resistant Gram-negative pathogens commonly produce several β-lactamases that are able to inactivate β-lactam antibiotics, our most reliable and widely used therapeutic option. The chemical structure of these prodrugs is based on a monobactam promoiety, covalently attached to the active
解决抗菌素耐药性是现代世界的一个主要问题。开发新方法来应对这一致命威胁是当务之急。在本文中,我们研究了一种消除细菌耐药性的新方法:利用β-内酰胺酶的β-内酰胺键裂解选择性地触发抗菌前药进入细菌周质。事实上,多重耐药革兰氏阴性病原体通常会产生多种β-内酰胺酶,这些酶能够使β-内酰胺抗生素失活,而β-内酰胺抗生素是我们最可靠和广泛使用的治疗选择。这些前药的化学结构基于单菌酰胺基团,共价连接到活性抗菌物质齐多夫定 (AZT)。我们描述了 10 种前药类似物 ( 5a-h )的四到九步合成及其生物活性。证明了一组 β-内酰胺酶的选择性酶促激活,并讨论了随后的结构-活性关系。进一步评估最佳化合物对实验室菌株和临床分离株的活性、初步稳定性和毒性。