Khan Adnan, Ghaffar Iqra, Baty Roua S, Abdel-Daim Mohamed M, Habib Shahida M, Kanwal Tasmina, Shah Muhammad Raza
Institute of Chemical Sciences, University of Peshawar, Peshawar 25120, Pakistan.
International Centre for Chemical and Biological Sciences, Research Institute of Chemistry, University of Karachi, Karachi 74200, Pakistan.
Antibiotics (Basel). 2021 Nov 29;10(12):1469. doi: 10.3390/antibiotics10121469.
The rise in bacterial resistance to currently used antibiotics is the main focus of medical researchers. Bacterial multidrug resistance (MDR) is a major threat to humans, as it is linked to greater rates of chronic disease and mortality. Hence, there is an urgent need for developing effective strategies to overcome the bacterial MDR. Metal-organic frameworks (MOFs) are a new class of porous crystalline materials made up of metal ions and organic ligands that can vary their pore size and structure to better encapsulate drug candidates. This study reports the synthesis of ribose-coated Cu-MOFs for enhanced bactericidal activity of chloramphenicol (CHL) against (resistant and sensitive) and MDR . The synthesized Cu-MOFs were characterized with DLS, FT-IR, powder X-ray diffraction, scanning electron microscope, and atomic force microscope. They were further investigated for their efficacy against selected bacterial strains. The synthesized ribose-coated Cu-MOFs were observed as spherical shape structure with the particle size of 562.84 ± 13.42 nm. CHL caused the increased inhibition of and MDR with significantly reduced MIC and MBIC values after being encapsulated in ribose-coated Cu-MOFs. The morphological analysis of the bacterial strains treated with ribose-coated CHL-Cu-MOFs showed the complete morphological distortion of both and MDR Based on the results of the study, it can be suggested that ribose-coated Cu-MOFs may be an effective alternate candidate to overcome the MDR and provide new perspective for the treatment of MDR bacterial infections.
细菌对当前使用的抗生素耐药性的上升是医学研究人员的主要关注焦点。细菌多重耐药性(MDR)是对人类的重大威胁,因为它与更高的慢性病发病率和死亡率相关。因此,迫切需要制定有效的策略来克服细菌多重耐药性。金属有机框架(MOFs)是一类新型的多孔晶体材料,由金属离子和有机配体组成,其孔径和结构可以变化,以便更好地封装候选药物。本研究报道了核糖包覆的铜基金属有机框架的合成,以增强氯霉素(CHL)对(耐药和敏感)以及多重耐药菌的杀菌活性。通过动态光散射(DLS)、傅里叶变换红外光谱(FT-IR)、粉末X射线衍射、扫描电子显微镜和原子力显微镜对合成的铜基金属有机框架进行了表征。进一步研究了它们对选定细菌菌株的功效。观察到合成的核糖包覆的铜基金属有机框架为球形结构,粒径为562.84±13.42nm。氯霉素在被封装在核糖包覆的铜基金属有机框架中后,对耐药菌和多重耐药菌的抑制作用增强,最低抑菌浓度(MIC)和最低杀菌浓度(MBIC)值显著降低。用核糖包覆的氯霉素-铜基金属有机框架处理的细菌菌株的形态分析表明,耐药菌和多重耐药菌的形态均完全扭曲。基于该研究结果,可以认为核糖包覆的铜基金属有机框架可能是克服多重耐药性的有效替代候选物,并为治疗多重耐药菌感染提供新的视角。