Abstract
The aim of this work was to investigate the antibacterial and antiviral properties of a riboflavin derivative (Vitamin B2), flavin mononucleotide and its derivative, synthesized by conjugation with polyethylene glycol (Rf–PEG). Flavin mononucleotide and conjugate of riboflavin with polyethylene glycol were investigated. Staphylococcus aureus, Pseudomonas aeruginosa, Escherichia coli, and Salmonella typhimurium were used as clinical isolates. Due to the growing number of antibiotic-resistant microorganisms, it is necessary to search for new strategies aimed at inactivating pathogens and preventing them from becoming drug-resistant. Antimicrobial photodynamic therapy (aPDT) is a promising approach to inactivate pathogens regardless of their antibiotic resistance status. The work investigated the antibacterial and antiviral properties of the derivative of riboflavin (Vitamin B2), flavin mononucleotide and its derivative synthesized by conjugation with polyethylene glycol (Rf–PEG). It has been shown that hydrophilic riboflavin derivatives are effective photosensitizers and provide inactivation of both gram-positive and -negative microorganisms during aPDT in vitro.
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Funding
The work was funded by the Ministry of Science and Higher Education as part of the work in the framework of a state assignment to the Federal Research Center “Crystallography and Photonics” of the Russian Academy of Sciences (studying the photosensitizing properties of the riboflavin conjugate) and Russian Foundation for Basic Research grant no. 20-04-60357 (studying the antimicrobial and antiviral activity of riboflavin derivatives).
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Borodina, T.N., Tolordava, E.R., Nikolaeva, M.E. et al. Antimicrobial Photodynamic Activity of Hydrophilic Riboflavin Derivatives. Mol. Genet. Microbiol. Virol. 36, 176–180 (2021). https://doi.org/10.3103/S0891416821040042
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DOI: https://doi.org/10.3103/S0891416821040042