Molecular characterization of Treponema pallidum subsp. pallidum in Switzerland and France with a new multilocus sequence typing scheme.

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Version: Final published version
License: CC BY 4.0
Serval ID
serval:BIB_B0A48A08A0F9
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Molecular characterization of Treponema pallidum subsp. pallidum in Switzerland and France with a new multilocus sequence typing scheme.
Journal
PloS one
Author(s)
Grillová L., Bawa T., Mikalová L., Gayet-Ageron A., Nieselt K., Strouhal M., Sednaoui P., Ferry T., Cavassini M., Lautenschlager S., Dutly F., Pla-Díaz M., Krützen M., González-Candelas F., Bagheri H.C., Šmajs D., Arora N., Bosshard P.P.
ISSN
1932-6203 (Electronic)
ISSN-L
1932-6203
Publication state
Published
Issued date
2018
Peer-reviewed
Oui
Volume
13
Number
7
Pages
e0200773
Language
english
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't
Publication Status: epublish
Abstract
Syphilis is an important public health problem and an increasing incidence has been noted in recent years. Characterization of strain diversity through molecular data plays a critical role in the epidemiological understanding of this re-emergence. We here propose a new high-resolution multilocus sequence typing (MLST) scheme for Treponema pallidum subsp. pallidum (TPA). We analyzed 30 complete and draft TPA genomes obtained directly from clinical samples or from rabbit propagated strains to identify suitable typing loci and tested the new scheme on 120 clinical samples collected in Switzerland and France. Our analyses yielded three loci with high discriminatory power: TP0136, TP0548, and TP0705. Together with analysis of the 23S rRNA gene mutations for macrolide resistance, we propose these loci as MLST for TPA. Among clinical samples, 23 allelic profiles as well as a high percentage (80% samples) of macrolide resistance were revealed. The new MLST has higher discriminatory power compared to previous typing schemes, enabling distinction of TPA from other treponemal bacteria, distinction between the two main TPA clades (Nichols and SS14), and differentiation of strains within these clades.
Keywords
Alleles, Anti-Bacterial Agents/pharmacology, DNA, Bacterial/genetics, France/epidemiology, Genome, Bacterial, Genotype, Globus Pallidus, Macrolides/pharmacology, Multilocus Sequence Typing/methods, Phylogeny, Polymorphism, Single Nucleotide, RNA, Ribosomal, 23S/genetics, Sequence Analysis, DNA/methods, Switzerland/epidemiology, Syphilis/epidemiology, Treponema pallidum/genetics
Pubmed
Web of science
Open Access
Yes
Create date
07/08/2018 11:18
Last modification date
20/08/2019 15:19
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