The prevalence of multidrug resistance in Staphylococcus hominis isolated from clinical materials

Abstract The treatment of infections caused by Staphylococcus hominis remains a challenge, mainly due to the increasing resistance of these bacteria to antibiotics. The aim of the study was to determine antibiotic resistance in 62 strains S. hominis isolated from clinical materials, and to identify...

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Main Authors: Magdalena Szemraj, Paulina Glajzner, Kamila Olszowiec, Monika Sienkiewicz
Format: Article
Language:English
Published: Nature Portfolio 2025-01-01
Series:Scientific Reports
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Online Access:https://doi.org/10.1038/s41598-024-84500-2
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author Magdalena Szemraj
Paulina Glajzner
Kamila Olszowiec
Monika Sienkiewicz
author_facet Magdalena Szemraj
Paulina Glajzner
Kamila Olszowiec
Monika Sienkiewicz
author_sort Magdalena Szemraj
collection DOAJ
description Abstract The treatment of infections caused by Staphylococcus hominis remains a challenge, mainly due to the increasing resistance of these bacteria to antibiotics. The aim of the study was to determine antibiotic resistance in 62 strains S. hominis isolated from clinical materials, and to identify the molecular basis of resistance to antibiotics. Forty-six strains were both methicillin-resistant and harbored the mecA gene. Twenty-three of these strains had mec complex A and ccr complex AB1. Such a combination of the mec and ccr complexes does not correspond to any cassettes that have been demonstrated so far. However, over 80% of the tested strains were multidrug-resistant, of which as many as 12 were resistant to at least seven antibiotics. More than a half of strains harbored the tetK, acc(6’)-Ie aph(2’’), and ant(4’)-I genes. erm(C) was the most common resistant gene to antibiotics from the MLS group. Two strains had as many as five antibiotic resistance genes from the tested groups (erm(C), msr(A), msr(B), mph(C), lnu(A)). The presence of the vga gene encoding resistance to streptogramins A was detected in one strain. All of strains were sensitive to vancomycin. However, 11 of them had reduced sensitivity to this antibiotic and eight of them were characterized by a heterogeneous resistance profile to this antibiotic. Our results clearly shows increasing threat of S. hominis caused by their multi-resistance. Moreover, these bacteria can constitute a reservoir of resistance genes for more pathogenic bacteria.
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spelling doaj-art-1d352221632c4d3db13ca70dbd285ea72025-01-05T12:23:09ZengNature PortfolioScientific Reports2045-23222025-01-0115111210.1038/s41598-024-84500-2The prevalence of multidrug resistance in Staphylococcus hominis isolated from clinical materialsMagdalena Szemraj0Paulina Glajzner1Kamila Olszowiec2Monika Sienkiewicz3Department of Pharmaceutical Microbiology and Microbiological Diagnostic, Medical University of LodzDepartment of Biopharmacy, Medical University of LodzDepartment of Pharmaceutical Microbiology and Microbiological Diagnostic, Medical University of LodzDepartment of Pharmaceutical Microbiology and Microbiological Diagnostic, Medical University of LodzAbstract The treatment of infections caused by Staphylococcus hominis remains a challenge, mainly due to the increasing resistance of these bacteria to antibiotics. The aim of the study was to determine antibiotic resistance in 62 strains S. hominis isolated from clinical materials, and to identify the molecular basis of resistance to antibiotics. Forty-six strains were both methicillin-resistant and harbored the mecA gene. Twenty-three of these strains had mec complex A and ccr complex AB1. Such a combination of the mec and ccr complexes does not correspond to any cassettes that have been demonstrated so far. However, over 80% of the tested strains were multidrug-resistant, of which as many as 12 were resistant to at least seven antibiotics. More than a half of strains harbored the tetK, acc(6’)-Ie aph(2’’), and ant(4’)-I genes. erm(C) was the most common resistant gene to antibiotics from the MLS group. Two strains had as many as five antibiotic resistance genes from the tested groups (erm(C), msr(A), msr(B), mph(C), lnu(A)). The presence of the vga gene encoding resistance to streptogramins A was detected in one strain. All of strains were sensitive to vancomycin. However, 11 of them had reduced sensitivity to this antibiotic and eight of them were characterized by a heterogeneous resistance profile to this antibiotic. Our results clearly shows increasing threat of S. hominis caused by their multi-resistance. Moreover, these bacteria can constitute a reservoir of resistance genes for more pathogenic bacteria.https://doi.org/10.1038/s41598-024-84500-2Staphylococcus hominisMethicillin resistanceSCCmec cassetteMulti-drug resistance gene
spellingShingle Magdalena Szemraj
Paulina Glajzner
Kamila Olszowiec
Monika Sienkiewicz
The prevalence of multidrug resistance in Staphylococcus hominis isolated from clinical materials
Scientific Reports
Staphylococcus hominis
Methicillin resistance
SCCmec cassette
Multi-drug resistance gene
title The prevalence of multidrug resistance in Staphylococcus hominis isolated from clinical materials
title_full The prevalence of multidrug resistance in Staphylococcus hominis isolated from clinical materials
title_fullStr The prevalence of multidrug resistance in Staphylococcus hominis isolated from clinical materials
title_full_unstemmed The prevalence of multidrug resistance in Staphylococcus hominis isolated from clinical materials
title_short The prevalence of multidrug resistance in Staphylococcus hominis isolated from clinical materials
title_sort prevalence of multidrug resistance in staphylococcus hominis isolated from clinical materials
topic Staphylococcus hominis
Methicillin resistance
SCCmec cassette
Multi-drug resistance gene
url https://doi.org/10.1038/s41598-024-84500-2
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