Abstract
AbstractThe increasing emergence and dissemination of multidrug resistant (MDR) bacterial pathogens accelerate the desires for new antibiotics. Natural products dominate the preferred chemical scaffolds for the discovery of antibacterial agents. Here, the potential of natural flavonoids from plants against MDR bacteria, is demonstrated. Structure–activity relationship analysis shows the prenylation modulates the activity of flavonoids and obtains two compounds, α‐mangostin (AMG) and isobavachalcone (IBC). AMG and IBC not only display rapid bactericidal activity against Gram‐positive bacteria, but also restore the susceptibility of colistin against Gram‐negative pathogens. Mechanistic studies generally show such compounds bind to the phospholipids of bacterial membrane, and result in the dissipation of proton motive force and metabolic perturbations, through distinctive modes of action. The efficacy of AMG and IBC in four models associated with infection or contamination, is demonstrated. These results suggest that natural products of plants may be a promising and underappreciated reservoir to circumvent the existing antibiotic resistance.
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Published
May 26, 2021
Vol/Issue
8(15)
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Authors
Funding
National Natural Science Foundation of China Award: 31922083
China Postdoctoral Science Foundation Award: BX20200370
National Key Research and Development Program of China Award: 2017YFC1600305
Cite This Article
Meirong Song, Ying Liu, Tingting Li, et al. (2021). Plant Natural Flavonoids Against Multidrug Resistant Pathogens. Advanced Science, 8(15). https://doi.org/10.1002/advs.202100749