First Evidence of a Combination of Terpinen-4-ol and α-Terpineol as a Promising Tool against ESKAPE Pathogens

Antimicrobial resistance is a major public health issue raising growing concern in the face of dwindling response options. It is therefore urgent to find new anti-infective molecules enabling us to fight effectively against ever more numerous bacterial infections caused by ever more antibiotic-resis...

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Main Authors: Bianca Johansen, Raphaël E. Duval, Jean-Christophe Sergere
Format: Article
Language:English
Published: MDPI AG 2022-11-01
Series:Molecules
Subjects:
Online Access:https://www.mdpi.com/1420-3049/27/21/7472
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author Bianca Johansen
Raphaël E. Duval
Jean-Christophe Sergere
author_facet Bianca Johansen
Raphaël E. Duval
Jean-Christophe Sergere
author_sort Bianca Johansen
collection DOAJ
description Antimicrobial resistance is a major public health issue raising growing concern in the face of dwindling response options. It is therefore urgent to find new anti-infective molecules enabling us to fight effectively against ever more numerous bacterial infections caused by ever more antibiotic-resistant bacteria. In this quest for new antibacterials, essential oils (or compounds extracted from essential oils) appear to be a promising therapeutic option. In the present work, we investigate the potential antibacterial synergy between a combination of terpinen-4-ol and α-terpineol (10:1) compared to standard tea tree oil. The minimum inhibitory concentration (MIC) and the minimum bactericidal concentration (MBC) were determined. Then, time kill assays, in vitro cytotoxicity and bactericidal activity on latent bacteria (persisters) were investigated. Finally, an in silico study of the pharmacokinetic parameters of α-terpineol was also performed. Altogether, our data demonstrate that the combination of terpinen-4-ol and α-terpineol might be a precious weapon to address ESKAPE pathogens.
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spelling doaj.art-ff37624bb55a47b78ffae1827e3058622023-11-24T06:04:46ZengMDPI AGMolecules1420-30492022-11-012721747210.3390/molecules27217472First Evidence of a Combination of Terpinen-4-ol and α-Terpineol as a Promising Tool against ESKAPE PathogensBianca Johansen0Raphaël E. Duval1Jean-Christophe Sergere2SETUBIO SA, Naturopole, F-03800 Saint Bonnet de Rochefort, FranceUniversité de Lorraine, CNRS, L2CM, F-54000 Nancy, FranceSETUBIO SA, Naturopole, F-03800 Saint Bonnet de Rochefort, FranceAntimicrobial resistance is a major public health issue raising growing concern in the face of dwindling response options. It is therefore urgent to find new anti-infective molecules enabling us to fight effectively against ever more numerous bacterial infections caused by ever more antibiotic-resistant bacteria. In this quest for new antibacterials, essential oils (or compounds extracted from essential oils) appear to be a promising therapeutic option. In the present work, we investigate the potential antibacterial synergy between a combination of terpinen-4-ol and α-terpineol (10:1) compared to standard tea tree oil. The minimum inhibitory concentration (MIC) and the minimum bactericidal concentration (MBC) were determined. Then, time kill assays, in vitro cytotoxicity and bactericidal activity on latent bacteria (persisters) were investigated. Finally, an in silico study of the pharmacokinetic parameters of α-terpineol was also performed. Altogether, our data demonstrate that the combination of terpinen-4-ol and α-terpineol might be a precious weapon to address ESKAPE pathogens.https://www.mdpi.com/1420-3049/27/21/7472tea tree oilterpinen-4-olα-terpineolantibacterial activitysynergycytotoxicity
spellingShingle Bianca Johansen
Raphaël E. Duval
Jean-Christophe Sergere
First Evidence of a Combination of Terpinen-4-ol and α-Terpineol as a Promising Tool against ESKAPE Pathogens
Molecules
tea tree oil
terpinen-4-ol
α-terpineol
antibacterial activity
synergy
cytotoxicity
title First Evidence of a Combination of Terpinen-4-ol and α-Terpineol as a Promising Tool against ESKAPE Pathogens
title_full First Evidence of a Combination of Terpinen-4-ol and α-Terpineol as a Promising Tool against ESKAPE Pathogens
title_fullStr First Evidence of a Combination of Terpinen-4-ol and α-Terpineol as a Promising Tool against ESKAPE Pathogens
title_full_unstemmed First Evidence of a Combination of Terpinen-4-ol and α-Terpineol as a Promising Tool against ESKAPE Pathogens
title_short First Evidence of a Combination of Terpinen-4-ol and α-Terpineol as a Promising Tool against ESKAPE Pathogens
title_sort first evidence of a combination of terpinen 4 ol and α terpineol as a promising tool against eskape pathogens
topic tea tree oil
terpinen-4-ol
α-terpineol
antibacterial activity
synergy
cytotoxicity
url https://www.mdpi.com/1420-3049/27/21/7472
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