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Drug Repurposing: In vitro and in vivo Antimicrobial and Antibiofilm Effects of Bithionol Against Enterococcus faecalis and Enterococcus faecium.


ABSTRACT: Widespread antibiotic resistance has been reported in enterococcal pathogens that cause life-threatening infections. Enterococci species rapidly acquire resistance and the pace of new antibiotic development is slow. Drug repurposing is a promising approach in solving this problem. Bithionol (BT) is a clinically approved anthelminthic drug. In this study, we found that BT showed significant antimicrobial and antibiofilm effects against Enterococcus faecalis and vancomycin-resistant Entercococcus faecium in vitro, in a dose-dependent manner, by disrupting the integrity of the bacterial cell membranes. Moreover, BT effectively reduced the bacterial load in mouse organs when combined with conventional antibiotics in a peritonitis infection model. Thus, BT has shown potential as a therapeutic agent against E. faecalis- and vancomycin-resistant E. faecium-related infections.

SUBMITTER: She P 

PROVIDER: S-EPMC8138570 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature

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Drug Repurposing: <i>In vitro</i> and <i>in vivo</i> Antimicrobial and Antibiofilm Effects of Bithionol Against <i>Enterococcus faecalis</i> and <i>Enterococcus faecium</i>.

She Pengfei P   Wang Yangxia Y   Li Yingjia Y   Zhou Linying L   Li Shijia S   Zeng Xianghai X   Liu Yaqian Y   Xu Lanlan L   Wu Yong Y  

Frontiers in microbiology 20210506


Widespread antibiotic resistance has been reported in enterococcal pathogens that cause life-threatening infections. Enterococci species rapidly acquire resistance and the pace of new antibiotic development is slow. Drug repurposing is a promising approach in solving this problem. Bithionol (BT) is a clinically approved anthelminthic drug. In this study, we found that BT showed significant antimicrobial and antibiofilm effects against <i>Enterococcus faecalis</i> and vancomycin-resistant <i>Ente  ...[more]

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