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Article: Identification of a Small Molecule Compound Active against Antibiotic-Tolerant Staphylococcus aureus by Boosting ATP Synthesis

TitleIdentification of a Small Molecule Compound Active against Antibiotic-Tolerant Staphylococcus aureus by Boosting ATP Synthesis
Authors
Keywordsadjuvants
antibiotic tolerance
MRSA
persistent infections
persister
Issue Date1-Apr-2023
PublisherMDPI
Citation
International Journal of Molecular Sciences, 2023, v. 24, n. 7 How to Cite?
Abstract

Antibiotic tolerance poses a threat to current antimicrobial armamentarium. Bacteria at a tolerant state survive in the presence of antibiotic treatment and account for persistence, relapse and recalcitrance of infections. Antibiotic treatment failure may occur due to antibiotic tolerance. Persistent infections are difficult to treat and are often associated with poor prognosis, imposing an enormous burden on the healthcare system. Effective strategies targeting antibiotic-tolerant bacteria are therefore highly warranted. In this study, small molecule compound SA-558 was identified to be effective against Staphylococcus aureus that are tolerant to being killed by conventional antibiotics. SA-558 mediated electroneutral transport across the membrane and led to increased ATP and ROS generation, resulting in a reduction of the population of antibiotic-tolerant bacteria. In a murine chronic infection model, of which vancomycin treatment failed, we demonstrated that SA-558 alone and in combination with vancomycin caused significant reduction of MRSA abundance. Our results indicate that SA-558 monotherapy or combinatorial therapy with vancomycin is an option for managing persistent S. aureus bacteremia infection and corroborate that bacterial metabolism is an important target for counteracting antibiotic tolerance.


Persistent Identifierhttp://hdl.handle.net/10722/339668
ISSN
2023 Impact Factor: 4.9
2023 SCImago Journal Rankings: 1.179
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorIu, Ho-Ting-Venice-
dc.contributor.authorFong, Pak-Ming-
dc.contributor.authorYam, Hin-Cheung-Bill-
dc.contributor.authorGao, Peng-
dc.contributor.authorYan, Bingpeng-
dc.contributor.authorLai, Pok-Man-
dc.contributor.authorTang, Victor-Yat-Man-
dc.contributor.authorLi, Ka-Ho-
dc.contributor.authorMa, Chi-Wang-
dc.contributor.authorNg, King-Hei-Kenneth-
dc.contributor.authorSze, Kong-Hung-
dc.contributor.authorYang, Dan-
dc.contributor.authorDavies, Julian-
dc.contributor.authorKao, Richard-Yi-Tsun-
dc.date.accessioned2024-03-11T10:38:24Z-
dc.date.available2024-03-11T10:38:24Z-
dc.date.issued2023-04-01-
dc.identifier.citationInternational Journal of Molecular Sciences, 2023, v. 24, n. 7-
dc.identifier.issn1661-6596-
dc.identifier.urihttp://hdl.handle.net/10722/339668-
dc.description.abstract<p>Antibiotic tolerance poses a threat to current antimicrobial armamentarium. Bacteria at a tolerant state survive in the presence of antibiotic treatment and account for persistence, relapse and recalcitrance of infections. Antibiotic treatment failure may occur due to antibiotic tolerance. Persistent infections are difficult to treat and are often associated with poor prognosis, imposing an enormous burden on the healthcare system. Effective strategies targeting antibiotic-tolerant bacteria are therefore highly warranted. In this study, small molecule compound SA-558 was identified to be effective against Staphylococcus aureus that are tolerant to being killed by conventional antibiotics. SA-558 mediated electroneutral transport across the membrane and led to increased ATP and ROS generation, resulting in a reduction of the population of antibiotic-tolerant bacteria. In a murine chronic infection model, of which vancomycin treatment failed, we demonstrated that SA-558 alone and in combination with vancomycin caused significant reduction of MRSA abundance. Our results indicate that SA-558 monotherapy or combinatorial therapy with vancomycin is an option for managing persistent S. aureus bacteremia infection and corroborate that bacterial metabolism is an important target for counteracting antibiotic tolerance.<br></p>-
dc.languageeng-
dc.publisherMDPI-
dc.relation.ispartofInternational Journal of Molecular Sciences-
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.-
dc.subjectadjuvants-
dc.subjectantibiotic tolerance-
dc.subjectMRSA-
dc.subjectpersistent infections-
dc.subjectpersister-
dc.titleIdentification of a Small Molecule Compound Active against Antibiotic-Tolerant Staphylococcus aureus by Boosting ATP Synthesis-
dc.typeArticle-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.3390/ijms24076242-
dc.identifier.scopuseid_2-s2.0-85152342758-
dc.identifier.volume24-
dc.identifier.issue7-
dc.identifier.eissn1422-0067-
dc.identifier.isiWOS:000970275300001-
dc.identifier.issnl1422-0067-

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