Publikationsdatenbank

Global spread of the linezolid-resistant Enterococcus faecalis ST476 clonal lineage carrying optrA (2024)

Art

Zeitschriftenartikel / wissenschaftlicher Beitrag

Autoren

Brenciani, Andrea

Cinthi, Marzia

Coccitto, Sonia Nina

Massacci, Francesca Romana

Albini, Elisa

Cucco, Lucilla

Paniccià, Marta

Freitas, Ana R

Schwarz, Stefan (WE 7)

Giovanetti, Eleonora

Magistrali, Chiara Francesca

Quelle

The journal of antimicrobial chemotherapy : JAC

Bandzählung: 79

Heftzählung: 4

Seiten: 846 – 850

ISSN: 0305-7453

Sprache

Englisch

Verweise

URL (Volltext): https://academic.oup.com/jac/article/79/4/846/7608754?login=true

DOI: 10.1093/jac/dkae039

Pubmed: 38366373

Kontakt

Institut für Mikrobiologie und Tierseuchen

Robert-von-Ostertag-Str. 7-13
14163 Berlin
+49 30 838 51843 / 66949
mikrobiologie@vetmed.fu-berlin.de

Abstract / Zusammenfassung

Objectives: To investigate the global distribution of an optrA-harbouring linezolid-resistant Enterococcus faecalis ST476 clonal lineage.

Methods: Comprehensive searches of the NCBI database were performed to identify published peer-reviewed articles and genomes of E. faecalis ST476. Each genome was analysed for resistome, virulome, OptrA variant and optrA genetic contexts. A phylogenetic comparison of ST476 genomes with publicly available genomes of other STs was also performed.

Results: Sixty-six E. faecalis ST476 isolates from 15 countries (China, Japan, South Korea, Austria, Denmark, Spain, Czech Republic, Colombia, Tunisia, Italy, Malaysia, Belgium, Germany, United Arab Emirates and Switzerland) mainly of human and animal origin were identified. Thirty available ST476 genomes compared with genomes of 591 STs indicated a progressive radiation of E. faecalis STs starting from ST21. The closest ancestral node for ST476 was ST1238. Thirty E. faecalis ST476 genomes exhibited 3-916 SNP differences. Several antimicrobial resistance and virulence genes were conserved among the ST476 genomes. The optrA genetic context exhibited a high degree of or complete identity to the chromosomal transposon Tn6674. Only three isolates displayed an optrA-carrying plasmid with complete or partial Tn6674. The WT OptrA protein was most widespread in the ST476 lineage.

Conclusions: Linezolid-resistant optrA-carrying E. faecalis of the clonal lineage ST476 is globally distributed in human, animal and environmental settings. The presence of such an emerging clone can be of great concern for public health. Thus, a One Health approach is needed to counteract the spread and the evolution of this enterococcal clonal lineage.