Guanethidine Restores Tetracycline Sensitivity in Multidrug-Resistant Escherichia coli Carrying tetA Gene
文献类型： 外文期刊
作者： Zhao, Xiaoou 1 ; Zhang, Mengna 1 ; Zhang, Zhendu 2 ; Wang, Lei 2 ; Wang, Yu 1 ; Liu, Lizai 2 ; Wang, Duojia 2 ; Zhang, Xin 2 ; Zhao, Luobing 2 ; Zhao, Yunhui 2 ; Jin, Xiangshu 2 ; Liu, Xiaoxiao 2 ; Ma, Hongxia 1 ;
作者机构： 1.Jilin Agr Univ, Coll Anim Sci & Technol, Xincheng St 2888, Changchun 130118, Peoples R China
2.Jilin Acad Agr Sci, Inst Anim Husb & Vet Med, Kemao St 186, Gongzhuling 136100, Peoples R China
3.Northwest A&F Univ, Coll Vet Med, Xinong St 22, Yangling 712100, Peoples R China
4.Jilin Normal Univ, Coll Life Sci, Haifeng St 1301, Siping 136000, Peoples R China
5.Jilin Agr Univ, Engn Res Ctr Bioreactor & Pharmaceut Dev, Minist Educ, Xincheng St 2888, Changchun 130118, Peoples R China
关键词：
guanethidine; antibiotic adjuvant; tetracyclines;
期刊名称：ANTIBIOTICS-BASEL （ 影响因子：4.6； 五年影响因子：4.9 ）
ISSN： 2079-6382
年卷期： 2024 年 13 卷 10 期
页码：
收录情况： SCI
摘要： The worrying issue of antibiotic resistance in pathogenic bacteria is aggravated by the scarcity of novel therapeutic agents. Antibiotic adjuvants offer a promising solution due to their cost-effectiveness and high efficacy in addressing this issue, such as the beta-lactamase inhibitor sulbactam (a beta-lactam adjuvant) and the dihydrofolate reductase inhibitor trimethoprim (a sulfonamide adjuvant). This study aimed to discover potential adjuvants for tetracyclines from a list of previously approved drugs to restore susceptibility to Escherichia coli carrying the tetA gene. We have screened guanethidine, a compound from the Chinese pharmacopoeia, which effectively potentiates the activity of tetracyclines by reversing resistance in tetA-positive Escherichia coli, enhancing its antibacterial potency, and retarding the development of resistance. Guanethidine functions via the inhibition of the TetA efflux pump, thereby increasing the intracellular concentration of tetracyclines. Our findings suggest that guanethidine holds promise as an antibiotic adjuvant.
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