Lasso peptides sviceucin and siamycin I have anti-virulence activity and restore vancomycin effectiveness in vancomycin-resistant Enterococcus sp. and Staphylococcus aureus - École Universitaire de Recherche (EUR) XL-Chem
Pré-Publication, Document De Travail Année : 2024

Lasso peptides sviceucin and siamycin I have anti-virulence activity and restore vancomycin effectiveness in vancomycin-resistant Enterococcus sp. and Staphylococcus aureus

Résumé

Antibiotic resistance is a major threat to human health and new drugs are urgently needed. Ideally, these drugs should have several cellular targets in pathogens, decreasing the risk of resistance development. We show here that two natural ribosomally-synthesized lasso peptides (LP), sviceucin and siamycin I, (i) abolish bacterial virulence of pathogenic enterococci, (ii) restore vancomycin clinical susceptibility of vancomycin-resistant (VR) enterococci in vitro and in a surrogate animal model, and (iii) re-sensitize VR Staphylococcus aureus. Mode of action (MoA) analyses showed that they do so by inhibiting the histidine kinases (HKs) FsrC and VanS controlling these phenotypes. Strains resistant to the vancomycin/LP combination were difficult to obtain, and were still fully susceptible to the anti-virulence effect of the LPs, highlighting the advantage of multiple targets. Together with the highly sought-after MoA as HK inhibitors, such properties make these lasso peptides promising candidates for the development of next generation antibiotics.
Fichier principal
Vignette du fichier
240730 publi svic + supplementary FINAL.pdf (1022.65 Ko) Télécharger le fichier
Origine Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-04705443 , version 1 (26-09-2024)

Identifiants

  • HAL Id : hal-04705443 , version 1

Citer

Abdelhakim Boudrioua, Benjamin Baëtz, Solenn Desmadril, Christophe Goulard, Anne-Claire Groo, et al.. Lasso peptides sviceucin and siamycin I have anti-virulence activity and restore vancomycin effectiveness in vancomycin-resistant Enterococcus sp. and Staphylococcus aureus. 2024. ⟨hal-04705443⟩
0 Consultations
0 Téléchargements

Partager

More