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Article Publish Status: FREE
Abstract Title:

Membrane-Interactive Compounds FromL. ThwartVirulence.

Abstract Source:

Front Microbiol. 2020 ;11:1068. Epub 2020 May 26. PMID: 32528451

Abstract Author(s):

Ali Tahrioui, Sergio Ortiz, Onyedikachi Cecil Azuama, Emeline Bouffartigues, Nabiha Benalia, Damien Tortuel, Olivier Maillot, Smain Chemat, Marina Kritsanida, Marc Feuilloley, Nicole Orange, Sylvie Michel, Olivier Lesouhaitier, Pierre Cornelis, Raphaël Grougnet, Sabrina Boutefnouchet, Sylvie Chevalier

Article Affiliation:

Ali Tahrioui

Abstract:

is capable to deploy a collection of virulence factors that are not only essential for host infection and persistence, but also to escape from the host immune system and to become more resistant to drug therapies. Thus, developing anti-virulence agents that may directly counteract with specific virulence factors or disturb higher regulatory pathways controlling the production of virulence armories are urgently needed. In this regard, this study reports thatL. fruit cyclohexane extract (PLFE1) thwartsvirulence by targeting mainly the pyocyanin pigment production by interfering with 4-hydroxy-2-alkylquinolines molecules production. Importantly, the anti-virulence activity of PLFE1 appears to be associated with membrane homeostasis alteration through the modulation of SigX, an extracytoplasmic function sigma factor involved in cell wall stress response. A thorough chemical analysis of PLFE1 allowed us to identify the ginkgolic acid (C17:1) and hydroginkgolic acid (C15:0) as the main bioactive membrane-interactive compounds responsible for the observed increased membrane stiffness and anti-virulence activity against. This study delivers a promising perspective for the potential future use of PLFE1 or ginkgolic acid molecules as an adjuvant therapy to fight againstinfections.

Study Type : In Vitro Study

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