Exogenous Citrulline and Glutamine Contribute to Reverse the Resistance of Salmonella to Apramycin

Bibliographic Details
Title: Exogenous Citrulline and Glutamine Contribute to Reverse the Resistance of Salmonella to Apramycin
Authors: Yan Yong, Yanhong Zhou, Kexin Liu, Guochang Liu, Liqin Wu, Binghu Fang
Source: Frontiers in Microbiology, Vol 12 (2021)
Publisher Information: Frontiers Media S.A., 2021.
Publication Year: 2021
Collection: LCC:Microbiology
Subject Terms: citrulline, glutamine, Salmonella, apramycin, resistance, reverse, Microbiology, QR1-502
More Details: Antibiotic resistance is an increasing concern for human and animal health worldwide. Recently, the concept of reverting bacterial resistance by changing the metabolic state of antibiotic-resistant bacteria has emerged. In this study, we investigated the reversal of Apramycin resistance in Salmonella. First, non-targeted metabonomics were used to identify key differential metabolites of drug-resistant bacteria. Then, the reversal effect of exogenous substances was verified in vivo and in vitro. Finally, the underlying mechanism was studied. The results showed that the metabolites citrulline and glutamine were significantly reduced in Apramycin-resistant Salmonella. When citrulline and glutamine were added to the culture medium of drug-resistant Salmonella, the killing effect of Apramycin was restored markedly. Mechanistic studies showed that citrulline and glutamine promoted the Tricarboxylic acid cycle, produced more NADH in the bacteria, and increased the proton-motive force, thus promoting Apramycin entry into the bacterial cells, and killing the drug-resistant bacteria. This study provides a useful method to manage infections by antibiotic-resistant bacteria.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 1664-302X
Relation: https://www.frontiersin.org/articles/10.3389/fmicb.2021.759170/full; https://doaj.org/toc/1664-302X
DOI: 10.3389/fmicb.2021.759170
Access URL: https://doaj.org/article/d677dbaf942e409983ec27a5038ec50e
Accession Number: edsdoj.677dbaf942e409983ec27a5038ec50e
Database: Directory of Open Access Journals
More Details
ISSN:1664302X
DOI:10.3389/fmicb.2021.759170
Published in:Frontiers in Microbiology
Language:English