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@article{2211021,
author = {Dufková, Kristýna and Bezdíček, Matěj and Cuprova, Kristina and Pantuckova, Dagmar and Nykrynova, Marketa and Brhelova, Eva and Kocmanova, Iva and Hodova, Silvie and Hanslianova, Marketa and Juren, Tomas and Lipový, Břetislav and Mayer, Jiří and Lengerová, Martina},
article_location = {WASHINGTON},
article_number = {1},
doi = {http://dx.doi.org/10.1128/spectrum.01817-21},
keywords = {MLST; MRSA; MSSA; high-resolution melting; mini-MLST; spa-typing; whole-genome sequencing},
language = {eng},
issn = {2165-0497},
journal = {Microbiology Spectrum},
title = {Sequencing Independent Molecular Typing of Staphylococcus aureus Isolates: Approach for Infection Control and Clonal Characterization},
url = {https://journals.asm.org/doi/10.1128/spectrum.01817-21},
volume = {10},
year = {2022}
}
TY - JOUR
ID - 2211021
AU - Dufková, Kristýna - Bezdíček, Matěj - Cuprova, Kristina - Pantuckova, Dagmar - Nykrynova, Marketa - Brhelova, Eva - Kocmanova, Iva - Hodova, Silvie - Hanslianova, Marketa - Juren, Tomas - Lipový, Břetislav - Mayer, Jiří - Lengerová, Martina
PY - 2022
TI - Sequencing Independent Molecular Typing of Staphylococcus aureus Isolates: Approach for Infection Control and Clonal Characterization
JF - Microbiology Spectrum
VL - 10
IS - 1
SP - 1-10
EP - 1-10
PB - American Society for Microbiology
SN - 21650497
KW - MLST
KW - MRSA
KW - MSSA
KW - high-resolution melting
KW - mini-MLST
KW - spa-typing
KW - whole-genome sequencing
UR - https://journals.asm.org/doi/10.1128/spectrum.01817-21
N2 - Staphylococcus aureus is a major bacterial human pathogen that causes a wide variety of clinical manifestations. The main aim of the presented study was to determine and optimize a novel sequencing independent approach that enables molecular typing of S. aureus isolates and elucidates the transmission of emergent clones between patients. In total, 987 S. aureus isolates including both methicillin-resistant S. aureus (MRSA) and methicillin-sensitive S. aureus (MSSA) isolates were used to evaluate the novel typing approach combining high-resolution melting (HRM) analysis of multilocus sequence typing (MLST) genes (mini-MLST) and spa gene (spa-HRM). The novel approach's discriminatory ability was evaluated by whole-genome sequencing (WGS). The clonal relatedness of tested isolates was set by the BURP and BURST approach using spa and MLST data, respectively. Mini-MLST classified the S. aureus isolates into 38 clusters, followed by spa-HRM classifying the isolates into 101 clusters. The WGS proved HRM-based methods to effectively differentiate between related S. aureus isolates. Visualizing evolutionary relationships among different spa-types provided by the BURP algorithm showed comparable results to MLST/mini-MLST clonal clusters. We proved that the combination of mini-MLST and spa-HRM is rapid, reproducible, and cost-efficient. In addition to high discriminatory ability, the correlation between spa evolutionary relationships and mini-MLST clustering allows the variability in population structure to be monitored. IMPORTANCE Rapid and cost-effective molecular typing tools for Staphylococcus aureus epidemiological applications such as transmission tracking, source attribution and outbreak investigations are highly desirable. High-resolution melting based methods are effective alternative to those based on sequencing. Their good reproducibility and easy performance allow prospective typing of large set of isolates while reaching great discriminatory power. In this study, we established a new epidemiological approach to S. aureus typing. This scheme has the potential to greatly improve epidemiological investigations of S. aureus.
ER -
DUFKOVÁ, Kristýna, Matěj BEZDÍČEK, Kristina CUPROVA, Dagmar PANTUCKOVA, Marketa NYKRYNOVA, Eva BRHELOVA, Iva KOCMANOVA, Silvie HODOVA, Marketa HANSLIANOVA, Tomas JUREN, Břetislav LIPOVÝ, Jiří MAYER and Martina LENGEROVÁ. Sequencing Independent Molecular Typing of Staphylococcus aureus Isolates: Approach for Infection Control and Clonal Characterization. \textit{Microbiology Spectrum}. WASHINGTON: American Society for Microbiology, 2022, vol.~10, No~1, p.~1-10. ISSN~2165-0497. Available from: https://dx.doi.org/10.1128/spectrum.01817-21.
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