Increased vancomycin susceptibility in mycobacteria: a new approach to identify synergistic activity against multi-drug resistant mycobacteria.

Increased vancomycin susceptibility in mycobacteria: a new approach to identify synergistic activity against multi-drug resistant mycobacteria.

Antimicrob Agents Chemother. 2015 Jun 1;

Authors: Soetaert K, Rens C, Wang XM, De Bruyn J, Lanéelle MA, Laval F, Lemassu A, Daffé M, Bifani P, Fontaine V, Lefèvre P

Abstract
Mycobacterium tuberculosis is wrapped in complex waxes, impermeable to most antibiotics. Comparing M. bovis BCG and M. tuberculosis mutants, lacking phthiocerol dimycocerosates (PDIM) and/or phenolic glycolipids, with wild-type strains, we observed that glycopeptides strongly inhibited PDIM deprived mycobacteria. Vancomycin together with a drug targeting lipids synthesis inhibited multidrug-resistant (MDR) and extensively-drug resistant (XDR) clinical isolates. Our study puts glycopeptides in the pipeline of potential anti-TB agents and might provide a new antimycobacterial drug-screening strategy.

PMID: 26033733 [PubMed - as supplied by publisher]