Khayat Maan T, Ibrahim Tarek S, Khayyat Ahdab N, Alharbi Majed, Shaldam Moataz A, Mohammad Khadijah A, Khafagy El-Sayed, El-Damasy Dalia A, Hegazy Wael A H, Abbas Hisham A
Department of Pharmaceutical Chemistry, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia.
Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Kafrelsheikh University, Kafr El-Sheikh 33511, Egypt.
Microorganisms. 2022 May 18;10(5):1046. doi: 10.3390/microorganisms10051046.
The development of bacterial resistance is an insistent global health care issue, especially in light of the dwindled supply of new antimicrobial agents. This mandates the development of new innovative approaches to overcome the resistance development obstacle. Mitigation of bacterial virulence is an interesting approach that offers multiple advantages. Employing safe chemicals or drugs to mitigate bacterial virulence is an additive advantage. In the current study, the in vitro antivirulence activities of citrate were evaluated. Significantly, sodium citrate inhibited bacterial biofilm formation at sub-MIC concentrations. Furthermore, sodium citrate decreased the production of virulence factors protease and pyocyanin and diminished bacterial motility. Quorum sensing (QS) is the communicative system that bacterial cells utilize to communicate with each other and regulate the virulence of the host cells. In the present study, citrate in silico blocked the QS receptors and downregulated the expression of QS-encoding genes. In conclusion, sodium citrate showed a significant ability to diminish bacterial virulence in vitro and interfered with QS; it could serve as a safe adjuvant to traditional antibiotic treatment for aggressive resistant bacterial infections such as infections.
细菌耐药性的发展是一个紧迫的全球医疗保健问题,尤其是考虑到新型抗菌药物供应的减少。这就要求开发新的创新方法来克服耐药性发展的障碍。减轻细菌毒力是一种具有多种优势的有趣方法。使用安全的化学物质或药物来减轻细菌毒力是一个额外的优势。在本研究中,评估了柠檬酸盐的体外抗毒力活性。值得注意的是,柠檬酸钠在亚抑菌浓度下抑制细菌生物膜的形成。此外,柠檬酸钠降低了毒力因子蛋白酶和绿脓菌素的产生,并减弱了细菌的运动性。群体感应(QS)是细菌细胞用来相互交流并调节宿主细胞毒力的通讯系统。在本研究中,柠檬酸盐在计算机模拟中阻断了QS受体,并下调了QS编码基因的表达。总之,柠檬酸钠在体外显示出显著的降低细菌毒力的能力,并干扰了群体感应;它可以作为传统抗生素治疗侵袭性耐药细菌感染(如感染)的安全佐剂。