VanZ Reduces the Binding of Lipoglycopeptide Antibiotics to Staphylococcus aureus and Streptococcus pneumoniae Cells

0524558 - MBÚ 2021 RIV CH eng J - Článek v odborném periodiku
Vimberg, Vladimír - Zieglerová, Leona - Buriánková, Karolína - Branny, Pavel - Balíková Novotná, Gabriela
VanZ Reduces the Binding of Lipoglycopeptide Antibiotics to Staphylococcus aureus and Streptococcus pneumoniae Cells.
Frontiers in Microbiology. Roč. 11, APR 3 (2020), č. článku 566. ISSN 1664-302X. E-ISSN 1664-302X
Grant CEP: GA MZd(CZ) NV15-28807A; GA ČR(CZ) GA19-03269S; GA MŠMT(CZ) ED1.1.00/02.0109
Institucionální podpora: RVO:61388971
Klíčová slova: Staphylococcus aureus * Streptococcus pneumoniae * antibiotic resistance
Obor OECD: Microbiology
Impakt faktor: 5.640, rok: 2020
Způsob publikování: Open access
https://www.frontiersin.org/articles/10.3389/fmicb.2020.00566/full

vanZ, a member of the VanA glycopeptide resistance gene cluster, confers resistance to lipoglycopeptide antibiotics independent of cell wall precursor modification by the vanHAX genes. Orthologs of vanZ are present in the genomes of many clinically relevant bacteria, including Enterococcus faecium and Streptococcus pneumoniae, however, vanZ genes are absent in Staphylococcus aureus. Here, we show that the expression of enterococcal vanZ paralogs in S. aureus increases the minimal inhibitory concentrations of lipoglycopeptide antibiotics teicoplanin, dalbavancin, oritavancin and new teicoplanin pseudoaglycone derivatives. The reduction in the binding of fluorescently labeled teicoplanin to the cells suggests the mechanism of VanZ-mediated resistance. In addition, using a genomic vanZ gene knockout mutant of S. pneumoniae, we have shown that the ability of VanZ proteins to compromise the activity of lipoglycopeptide antibiotics by reducing their binding is a more general feature of VanZ-superfamily proteins.
Trvalý link: http://hdl.handle.net/11104/0308900