Diban Firas, Di Fermo Paola, Di Lodovico Silvia, Petrini Morena, Pilato Serena, Fontana Antonella, Pinti Morena, Di Giulio Mara, Lence Emilio, González-Bello Concepción, Cellini Luigina, D'Ercole Simonetta
Department of Pharmacy, University "G. d'Annunzio" Chieti-Pescara, Via dei Vestini 31, 66100 Chieti, Italy.
Department of Medical, Oral and Biotechnological Sciences, University "G. d'Annunzio" Chieti-Pescara, Via dei Vestini 31, 66100 Chieti, Italy.
Antibiotics (Basel). 2025 Apr 10;14(4):396. doi: 10.3390/antibiotics14040396.
antimicrobial resistance represents a critical issue leading to delayed wound healing; hence, it is necessary to develop novel strategies to address this phenomenon. this study aimed to explore the antimicrobial/anti-virulence action of Methylglyoxal-MGO alone or combined with novel technologies such as Light-Emitting Diodes-LED and Complex Magnetic Fields-CMFs against resistant clinical strains isolated from chronic wounds. characterized planktonic , , and isolates were used. Antimicrobial activity was evaluated by measuring optical density, Colony Forming Units-CFU, and synergy between MGO/LED or CMFs. Cellular membrane permeability by propidium iodide fluorescence and fluidity by Laurdan generalized polarization measurements were performed. motility was tested using the soft agar method. A docking study was performed to evaluate the possible interaction between MGO and urease in . single/combined treatments showed significant antimicrobial activity. Major CFU reduction was detected after CMFs/MGO+CMFs application on . Treatments exhibited significant changes in membrane permeability and fluidity. The treatments decreased motility with a major reduction after LED application. Docking analysis showed that MGO could bind with urease leading to defective folding and functional alterations. the results suggest that these treatments could represent promising and green therapeutic solutions against resistant isolates from chronic wounds.
抗菌耐药性是导致伤口愈合延迟的一个关键问题;因此,有必要开发新的策略来应对这一现象。本研究旨在探究乙二醛(Methylglyoxal,MGO)单独或与发光二极管(Light-Emitting Diodes,LED)和复合磁场(Complex Magnetic Fields,CMFs)等新技术联合使用时,对从慢性伤口分离出的耐药临床菌株的抗菌/抗毒力作用。使用了经过表征的浮游菌、生物膜和伤口分离株。通过测量光密度、菌落形成单位(Colony Forming Units,CFU)以及MGO/LED或CMFs之间的协同作用来评估抗菌活性。通过碘化丙啶荧光测量细胞膜通透性,并通过劳丹广义极化测量法测量细胞膜流动性。使用软琼脂法测试细菌运动性。进行了对接研究以评估MGO与幽门螺杆菌中脲酶之间可能的相互作用。单一/联合处理均显示出显著的抗菌活性。在CMFs/MGO + CMFs处理幽门螺杆菌后,检测到CFU显著减少。处理后细胞膜通透性和流动性发生了显著变化。这些处理降低了细菌运动性,在LED处理后下降更为明显。对接分析表明,MGO可与幽门螺杆菌脲酶结合,导致其折叠缺陷和功能改变。结果表明,这些处理可能是针对慢性伤口耐药分离株的有前景的绿色治疗方案。