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Aziz F, Hisatsune J, Ono HK, Kajimura J, Yu L, Masuda K, Kitagawa H, Sato'o Y, Yahara K, Yamaoka M, Nakane A, Kawasaki H, Obata S, Fukushima-Nomura A, Ito Y, Aung MS, Amagai M, Salasia SIO, Ohge H, Kusunoki Y, Sugai M. Genomic analysis and identification of a novel superantigen, SargEY, in Staphylococcus argenteus isolated from atopic dermatitis lesions. mSphere 2024:e0050524. [PMID: 38990001 DOI: 10.1128/msphere.00505-24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2024] [Accepted: 06/19/2024] [Indexed: 07/12/2024] Open
Abstract
During surveillance of Staphylococcus aureus in lesions from patients with atopic dermatitis (AD), we isolated Staphylococcus argenteus, a species registered in 2011 as a new member of the genus Staphylococcus and previously considered a lineage of S. aureus. Genome sequence comparisons between S. argenteus isolates and representative S. aureus clinical isolates from various origins revealed that the S. argenteus genome from AD patients closely resembles that of S. aureus causing skin infections. We previously reported that 17%-22% of S. aureus isolated from skin infections produce staphylococcal enterotoxin Y (SEY), which predominantly induces T-cell proliferation via the T-cell receptor (TCR) Vα pathway. Complete genome sequencing of S. argenteus isolates revealed a gene encoding a protein similar to superantigen SEY, designated as SargEY, on its chromosome. Population structure analysis of S. argenteus revealed that these isolates are ST2250 lineage, which was the only lineage positive for the SEY-like gene among S. argenteus. Recombinant SargEY demonstrated immunological cross-reactivity with anti-SEY serum. SargEY could induce proliferation of human CD4+ and CD8+ T cells, as well as production of TNF-α and IFN-γ. SargEY showed emetic activity in a marmoset monkey model. SargEY and SET (a phylogenetically close but uncharacterized SE) revealed their dependency on TCR Vα in inducing human T-cell proliferation. Additionally, TCR sequencing revealed other previously undescribed Vα repertoires induced by SEH. SargEY and SEY may play roles in exacerbating the respective toxin-producing strains in AD. IMPORTANCE Staphylococcus aureus is frequently isolated from active lesions of atopic dermatitis (AD) patients. We reported that 17%-22% of S. aureus isolated from AD patients produced a novel superantigen staphylococcal enterotoxin Y (SEY). Unlike many S. aureus superantigens that activate T cells via T-cell receptor (TCR) Vß, SEY activates T cells via TCR Vα and stimulates cytokine secretion. Staphylococcus argenteus was isolated from AD patients during the surveillance for S. aureus. Phylogenetic comparison of the genome indicated that the isolate was very similar to S. aureus causing skin infections. The isolate encoded a SEY-like protein, designated SargEY, which, like SEY, activated T cells via the TCR Vα. ST2250 is the only lineage positive for SargEY gene. ST2250 S. argenteus harboring a superantigen SargEY gene may be a novel staphylococcal clone that infects human skin and is involved in the exacerbation of AD.
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Affiliation(s)
- Fatkhanuddin Aziz
- Department of Bacteriology, Graduate School of Biomedical and Health Sciences, Hiroshima City, Hiroshima, Japan
- Veterinary Technology Program, Department of Bioresources Technology and Veterinary, Vocational College, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | - Junzo Hisatsune
- Department of Bacteriology, Graduate School of Biomedical and Health Sciences, Hiroshima City, Hiroshima, Japan
- Antimicrobial Resistance Research Center, National Institute of Infectious Diseases, Higashimurayama, Tokyo, Japan
| | - Hisaya K Ono
- Laboratory of Zoonoses, Kitasato University School of Veterinary Medicine, Towada, Aomori, Japan
| | - Junko Kajimura
- Department of Molecular Biosciences, Radiation Effects Research Foundation, Hiroshima City, Hiroshima, Japan
| | - Liansheng Yu
- Antimicrobial Resistance Research Center, National Institute of Infectious Diseases, Higashimurayama, Tokyo, Japan
| | - Kanako Masuda
- Department of Bacteriology, Graduate School of Biomedical and Health Sciences, Hiroshima City, Hiroshima, Japan
| | - Hiroki Kitagawa
- Department of Infectious Diseases, Hiroshima University Hospital, Hiroshima City, Hiroshima, Japan
| | - Yusuke Sato'o
- Division of Bacteriology, Department of Infection and Immunity, School of Medicine, Jichi Medical University, Shimotsuke-shi, Tochigi, Japan
| | - Koji Yahara
- Antimicrobial Resistance Research Center, National Institute of Infectious Diseases, Higashimurayama, Tokyo, Japan
| | - Mika Yamaoka
- Department of Molecular Biosciences, Radiation Effects Research Foundation, Hiroshima City, Hiroshima, Japan
| | - Akio Nakane
- Department of Microbiology and Immunology, Hirosaki University, Hirosaki, Aomori, Japan
| | - Hiroshi Kawasaki
- Department of Dermatology, Keio University School of Medicine, Shijuku-ku, Tokyo, Japan
- Laboratory for Skin Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, Kanagawa, Japan
- Laboratory for Developmental Genetics, RIKEN, Center for Integrative Medical Sciences, Yokohama, Kanagawa, Japan
| | - Shoko Obata
- Department of Dermatology, Keio University School of Medicine, Shijuku-ku, Tokyo, Japan
| | | | - Yoshihiro Ito
- Department of Dermatology, Keio University School of Medicine, Shijuku-ku, Tokyo, Japan
| | - Meiji Soe Aung
- Department of Hygiene, Sapporo Medical University School of Medicine, Sapporo, Hokkaido, Japan
| | - Masayuki Amagai
- Department of Dermatology, Keio University School of Medicine, Shijuku-ku, Tokyo, Japan
- Laboratory for Skin Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, Kanagawa, Japan
| | - Siti Isrina Oktavia Salasia
- Department of Clinical Pathology, Faculty of Veterinary Medicine, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | - Hiroki Ohge
- Department of Infectious Diseases, Hiroshima University Hospital, Hiroshima City, Hiroshima, Japan
| | - Yoichiro Kusunoki
- Department of Molecular Biosciences, Radiation Effects Research Foundation, Hiroshima City, Hiroshima, Japan
| | - Motoyuki Sugai
- Department of Bacteriology, Graduate School of Biomedical and Health Sciences, Hiroshima City, Hiroshima, Japan
- Antimicrobial Resistance Research Center, National Institute of Infectious Diseases, Higashimurayama, Tokyo, Japan
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Cuny C, Layer-Nicolaou F, Werner G, Witte W. A look at staphylococci from the one health perspective. Int J Med Microbiol 2024; 314:151604. [PMID: 38367509 DOI: 10.1016/j.ijmm.2024.151604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 01/11/2024] [Accepted: 01/15/2024] [Indexed: 02/19/2024] Open
Abstract
Staphylococcus aureus and other staphylococcal species are resident and transient multihost colonizers as well as conditional pathogens. Especially S. aureus represents an excellent model bacterium for the "One Health" concept because of its dynamics at the human-animal interface and versatility with respect to host adaptation. The development of antimicrobial resistance plays another integral part. This overview will focus on studies at the human-animal interface with respect to livestock farming and to companion animals, as well as on staphylococci in wildlife. In this context transmissions of staphylococci and of antimicrobial resistance genes between animals and humans are of particular significance.
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Affiliation(s)
- Christiane Cuny
- Division of Nosocomial Pathogens and Antibiotic Resistances, Department of Infectious Diseases, Robert Koch Institute, National Reference Centre for Staphylococci and Enterococci, Wernigerode Branch, 38855 Wernigerode, Germany.
| | - Franziska Layer-Nicolaou
- Division of Nosocomial Pathogens and Antibiotic Resistances, Department of Infectious Diseases, Robert Koch Institute, National Reference Centre for Staphylococci and Enterococci, Wernigerode Branch, 38855 Wernigerode, Germany
| | - Guido Werner
- Division of Nosocomial Pathogens and Antibiotic Resistances, Department of Infectious Diseases, Robert Koch Institute, National Reference Centre for Staphylococci and Enterococci, Wernigerode Branch, 38855 Wernigerode, Germany
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Alkuraythi DM, Alkhulaifi MM, Binjomah AZ, Alarwi M, Aldakhil HM, Mujallad MI, Alharbi SA, Alshomrani M, Alshahrani SM, Gojobori T, Alajel SM. Clonal Flux and Spread of Staphylococcus aureus Isolated from Meat and Its Genetic Relatedness to Staphylococcus aureus Isolated from Patients in Saudi Arabia. Microorganisms 2023; 11:2926. [PMID: 38138070 PMCID: PMC10745650 DOI: 10.3390/microorganisms11122926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Revised: 11/14/2023] [Accepted: 11/21/2023] [Indexed: 12/24/2023] Open
Abstract
In this study, we investigated both meat-derived and methicillin-resistant Staphylococcus aureus (MRSA), exploring their genetic relatedness to patient-derived MRSA isolates in Saudi Arabia. We collected 250 meat samples and identified 53 S. aureus isolates, with 79% being methicillin-sensitive Staphylococcus aureus (MSSA) and 21% being MRSA. Moreover, we included 80 clinically confirmed patient-derived MRSA isolates. We identified the most common S. aureus clone in both patients and retail meat. In meat, ST6 and ST97 were the most common clones in 55% of the MRSA isolates, and ST1153 and ST672 were the most common in 21% and 17% of the MSSA isolates. In patients, ST5 and ST6 were the predominant clones in 46% of the S. aureus isolates. CC5/ST5-SCCmecVc-t311 and CC361/ST672-SCCmecV-t3841 were common MRSA clones in both meat and patients. CC97 and CC361 clones were the second most prevalent S. aureus clones in meat and were relatively common in patients. Furthermore, we sequenced and characterized novel S. aureus strains ST8109, ST8110, and ST8111. The genomic similarities between meat- and patient-derived S. aureus isolates suggest that retail meat might be a reservoir for S.aureus and MRSA transmission. Therefore, a structured One Health approach is recommended for S. aureus dissemination, genetic characterization, antibiotic resistance, and impact on human health.
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Affiliation(s)
- Dalal M. Alkuraythi
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia (M.M.A.)
- Department of Biology, College of Science, University of Jeddah, Jeddah 23445, Saudi Arabia
| | - Manal M. Alkhulaifi
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia (M.M.A.)
| | - Abdulwahab Z. Binjomah
- Microbiology Department, Riyadh Regional Laboratory, Ministry of Health, Riyadh 12746, Saudi Arabia (S.A.A.)
- College of Medicine, AL-Faisal University, Takhassusi Street, Riyadh 11533, Saudi Arabia
| | - Mohammed Alarwi
- Computational Bioscience Research Center, Biological and Environmental Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955, Saudi Arabia
| | - Hind M. Aldakhil
- Computational Bioscience Research Center, Biological and Environmental Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955, Saudi Arabia
| | | | - Saleh Ali Alharbi
- Microbiology Department, Riyadh Regional Laboratory, Ministry of Health, Riyadh 12746, Saudi Arabia (S.A.A.)
| | - Mohammad Alshomrani
- Microbiology Department, Riyadh Regional Laboratory, Ministry of Health, Riyadh 12746, Saudi Arabia (S.A.A.)
| | - Saeed Mastour Alshahrani
- Department of Public Health, College of Applied Medical Sciences, King Khalid University, Abha 62529, Saudi Arabia
| | - Takashi Gojobori
- Computational Bioscience Research Center, Biological and Environmental Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955, Saudi Arabia
| | - Sulaiman M. Alajel
- Reference Laboratory for Microbiology, Executive Department for Reference Laboratories, Research and Laboratories Sector, Food and Drug Authority, Riyadh 12843, Saudi Arabia
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Chen JHK, Leung HY, Wong CMC, Yuen KY, Cheng VCC. Prevalence and Characteristics of Invasive Staphylococcus argenteus among Patients with Bacteremia in Hong Kong. Microorganisms 2023; 11:2435. [PMID: 37894094 PMCID: PMC10609611 DOI: 10.3390/microorganisms11102435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 09/25/2023] [Accepted: 09/25/2023] [Indexed: 10/29/2023] Open
Abstract
Staphylococcus argenteus is a novel Staphylococcus species derived from Staphylococcus aureus. Information on the prevalence and genetic characteristics of invasive S. argenteus in Asia is limited. In this study, 275 invasive S. aureus complex strains were retrieved from blood culture specimens in Hong Kong and re-analyzed using MALDI-TOF mass spectrometry and an in-house multiplex real-time PCR for S. argenteus. The prevalence of invasive S. argenteus in Hong Kong was found to be 4.0% (11/275). These strains were primarily susceptible to commonly used antibiotics, except penicillin. Whole-genome sequencing revealed the circulation of three S. argenteus genotypes (ST-2250, ST-1223, and ST-2854) in Hong Kong, with ST-2250 and ST-1223 being the predominant genotypes. The local ST-2250 and ST-1223 strains showed close phylogenetic relationships with isolates from mainland China. Antimicrobial-resistant genes (fosB, tet-38, mepA, blaI, blaZ) could be found in nearly all local S. argenteus strains. The ST-1223 and ST-2250 genotypes carried multiple staphylococcal enterotoxin genes that could cause food poisoning and toxic shock syndrome. The CRISPR/Cas locus was observed only in the ST-2250 strains. This study provides the first report on the molecular epidemiology of invasive S. argenteus in Hong Kong, and further analysis is needed to understand its transmission reservoir.
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Affiliation(s)
- Jonathan H. K. Chen
- Department of Microbiology, Queen Mary Hospital, Hong Kong SAR, China; (H.-Y.L.); (V.C.C.C.)
- Department of Microbiology, School of Clinical Medicine, The University of Hong Kong, Hong Kong SAR, China; (C.M.C.W.); (K.-Y.Y.)
| | - Hoi-Yi Leung
- Department of Microbiology, Queen Mary Hospital, Hong Kong SAR, China; (H.-Y.L.); (V.C.C.C.)
| | - Charles M. C. Wong
- Department of Microbiology, School of Clinical Medicine, The University of Hong Kong, Hong Kong SAR, China; (C.M.C.W.); (K.-Y.Y.)
| | - Kwok-Yung Yuen
- Department of Microbiology, School of Clinical Medicine, The University of Hong Kong, Hong Kong SAR, China; (C.M.C.W.); (K.-Y.Y.)
| | - Vincent C. C. Cheng
- Department of Microbiology, Queen Mary Hospital, Hong Kong SAR, China; (H.-Y.L.); (V.C.C.C.)
- Infection Control Team, Queen Mary Hospital, Hong Kong West Cluster, Hong Kong SAR, China
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Rocha Balzan LDL, Rossato AM, Riche CVW, Cantarelli VV, D’Azevedo PA, Valério de Lima A, Rodrigues B, França e Silva ILA, Dias CAG, Sampaio JLM. Staphylococcus argenteus Infections, Brazil. Microbiol Spectr 2023; 11:e0117922. [PMID: 36688721 PMCID: PMC9927369 DOI: 10.1128/spectrum.01179-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
In 2015, two new species related to the Staphylococcus aureus were proposed. We describe five isolates of the new species Staphylococcus argenteus cultured from human cases of bacteremia and skin and soft tissue infections. This is the first report of S. argenteus, from South America, causing community-acquired and nosocomial infections.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Jorge Luiz Mello Sampaio
- Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, São Paulo, Brazil
- Grupo Fleury, São Paulo, Brazil
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Shemirani MI, Tilevik D, Tilevik A, Jurcevic S, Arnellos D, Enroth H, Pernestig AK. Benchmarking of two bioinformatic workflows for the analysis of whole-genome sequenced Staphylococcus aureus collected from patients with suspected sepsis. BMC Infect Dis 2023; 23:39. [PMID: 36670352 PMCID: PMC9863170 DOI: 10.1186/s12879-022-07977-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 12/28/2022] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND The rapidly growing area of sequencing technologies, and more specifically bacterial whole-genome sequencing, could offer applications in clinical microbiology, including species identification of bacteria, prediction of genetic antibiotic susceptibility and virulence genes simultaneously. To accomplish the aforementioned points, the commercial cloud-based platform, 1928 platform (1928 Diagnostics, Gothenburg, Sweden) was benchmarked against an in-house developed bioinformatic pipeline as well as to reference methods in the clinical laboratory. METHODS Whole-genome sequencing data retrieved from 264 Staphylococcus aureus isolates using the Illumina HiSeq X next-generation sequencing technology was used. The S. aureus isolates were collected during a prospective observational study of community-onset severe sepsis and septic shock in adults at Skaraborg Hospital, in the western region of Sweden. The collected isolates were characterized according to accredited laboratory methods i.e., species identification by MALDI-TOF MS analysis and phenotypic antibiotic susceptibility testing (AST) by following the EUCAST guidelines. Concordance between laboratory methods and bioinformatic tools, as well as concordance between the bioinformatic tools was assessed by calculating the percent of agreement. RESULTS There was an overall high agreement between predicted genotypic AST and phenotypic AST results, 98.0% (989/1006, 95% CI 97.3-99.0). Nevertheless, the 1928 platform delivered predicted genotypic AST results with lower very major error rates but somewhat higher major error rates compared to the in-house pipeline. There were differences in processing times i.e., minutes versus hours, where the 1928 platform delivered the results faster. Furthermore, the bioinformatic workflows showed overall 99.4% (1267/1275, 95% CI 98.7-99.7) agreement in genetic prediction of the virulence gene characteristics and overall 97.9% (231/236, 95% CI 95.0-99.2%) agreement in predicting the sequence types (ST) of the S. aureus isolates. CONCLUSIONS Altogether, the benchmarking disclosed that both bioinformatic workflows are able to deliver results with high accuracy aiding diagnostics of severe infections caused by S. aureus. It also illustrates the need of international agreement on quality control and metrics to facilitate standardization of analytical approaches for whole-genome sequencing based predictions.
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Affiliation(s)
- Mahnaz Irani Shemirani
- grid.8761.80000 0000 9919 9582Department of Laboratory Medicine, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Diana Tilevik
- grid.412798.10000 0001 2254 0954School of Bioscience, Systems Biology Research Centre, Infection Biology, University of Skövde, Skövde, Sweden
| | - Andreas Tilevik
- grid.412798.10000 0001 2254 0954School of Bioscience, Systems Biology Research Centre, Infection Biology, University of Skövde, Skövde, Sweden
| | - Sanja Jurcevic
- grid.412798.10000 0001 2254 0954School of Bioscience, Systems Biology Research Centre, Infection Biology, University of Skövde, Skövde, Sweden
| | | | - Helena Enroth
- grid.412798.10000 0001 2254 0954School of Bioscience, Systems Biology Research Centre, Infection Biology, University of Skövde, Skövde, Sweden ,Molecular Microbiology, Laboratory Medicine, Unilabs AB, Skövde, Sweden
| | - Anna-Karin Pernestig
- grid.412798.10000 0001 2254 0954School of Bioscience, Systems Biology Research Centre, Infection Biology, University of Skövde, Skövde, Sweden
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7
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Chang CH, Lee SH, Lin YC, Hsu CY, Cheng CC, Teng SH, Chen MF, Hsieh PH, Chang Y, Chiang-Ni C. Characterization of the phenotypes of methicillin- and vancomycin-susceptible Staphylococcus argenteus after vancomycin passages. J Glob Antimicrob Resist 2022; 31:63-71. [PMID: 35964863 DOI: 10.1016/j.jgar.2022.08.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 08/02/2022] [Accepted: 08/08/2022] [Indexed: 12/30/2022] Open
Abstract
OBJECTIVES Staphylococcus argenteus is generally more susceptible to antibiotic treatments than Staphylococcus aureus; however, the study showed that the daptomycin/vancomycin-resistant S. argenteus was isolated from a patient with repeated antibiotic treatments. In this study, the methicillin- and vancomycin-susceptible S. argenteus isolates were used to characterize the phenotypes of S. argenteus after vancomycin passages in vitro. METHODS Eleven S. argenteus isolates were used for passaging under different concentrations of vancomycin. The minimal inhibitory concentration (MIC) of vancomycin was determined by the agar dilution assay, and the biofilm mass of the passaged variants was quantified by the crystal violet staining assay and observed under the confocal microscope. RESULTS The MIC of vancomycin for eight of 11 S. argenteus isolates was increased from ≤2 µg/mL to ≤4-8 µg/mL after vancomycin passages. Two variants with the high-level vancomycin-intermediate (vancomycin MIC ≤8 µg/mL) phenotype were identified, and the parental strains of these variants did not have the heterogeneous vancomycin-intermediate population determined by the population profile analysis. Further, three S. argenteus isolates showed an increase in biofilm production and icaA transcription after the low-dose (2 µg/mL) vancomycin passages. CONCLUSIONS S. argenteus is capable of acquiring a vancomycin-tolerant phenotype and/or converting to a strong biofilm producer after vancomycin passages, which could contribute to the decrease of their antibiotic susceptibility.
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Affiliation(s)
- Chih-Hsiang Chang
- Department of Orthopedic Surgery, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan; Bone and Joint Research Center, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan; College of Medicine, Chang Gung University, Taoyuan, Taiwan; Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Sheng-Hsun Lee
- Department of Orthopedic Surgery, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan; Bone and Joint Research Center, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan; College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Yu-Chih Lin
- Department of Orthopedic Surgery, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan; Bone and Joint Research Center, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan; College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Chih-Yun Hsu
- Department of Microbiology and Immunology, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Chih-Chieh Cheng
- Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Shih-Hua Teng
- Department of Microbiology and Immunology, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Mei-Feng Chen
- Department of Orthopedic Surgery, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan; Bone and Joint Research Center, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan
| | - Pang-Hsin Hsieh
- Department of Orthopedic Surgery, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan; Bone and Joint Research Center, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan; College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Yuhan Chang
- Department of Orthopedic Surgery, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan; Bone and Joint Research Center, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan
| | - Chuan Chiang-Ni
- Department of Orthopedic Surgery, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan; Molecular Infectious Disease Research Center, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan; Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan; Department of Microbiology and Immunology, College of Medicine, Chang Gung University, Taoyuan, Taiwan.
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8
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Pumipuntu N, Chamnandee T, Saengthong K, Pathomthanasarn S, Tanee T, Kyes P, Thamsenanupap P, Karaket A, Roberts MC, Kyes RC. Investigation of methicillin-resistant Staphylococcus aureus, methicillin-susceptible Staphylococcus aureus, and Staphylococcus argenteus from wild long-tailed macaques ( Macaca fascicularis) at Kosumpee Forest Park, Maha Sarakham, Thailand. Vet World 2022; 15:2693-2698. [PMID: 36590126 PMCID: PMC9798064 DOI: 10.14202/vetworld.2022.2693-2698] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 10/13/2022] [Indexed: 11/27/2022] Open
Abstract
Background and Aim In the past, the prevalence of methicillin-resistant Staphylococcus aureus (MRSA) infections in both humans and animals has increased across Thailand. Staphylococcus argenteus has been associated with infections among humans, exotic pets, and livestock. Both species have been identified in non-human primate species from geographically diverse locations but not from non-human primates in Thailand. This study aimed to determine the presence of MRSA/methicillin-susceptible S. aureus (MSSA) and S. argenteus isolates collected from buccal swab samples in Macaca fascicularis at Kosumpee Forest Park (KFP), Maha Sarakham, Northeast Thailand. Materials and Methods Aseptic buccal swab samples were collected from 30 free-ranging macaques in November 2018. All isolates were tested using multiple biochemical tests and S. aureus latex slide agglutination test. Presumptive S. aureus isolates were tested for the presence of the mecA gene using polymerase chain reaction (PCR) assays. The isolates were phenotypically determined to be resistant to a β-lactam antibiotic using the disk diffusion method with a 30 mg cefoxitin disk. The isolates were analyzed by PCR for the non-ribosomal peptide synthetase (NRPS) gene to distinguish S. argenteus from S. aureus. Results Fifteen macaques (50%) were colonized with S. aureus and 21 isolates were characterized. Three of the macaques carried both the MRSA and MSSA isolate. One animal carried both MRSA and S. argenteus isolate, and one animal carried only S. argenteus. The NRPS gene analysis confirmed that 2 isolates (9.52%) were S. argenteus and 19 isolates (90.48%) were S. aureus [five MSSA and 14 MRSA]. Conclusion This study is the first to identify MRSA/MSSA and S. argenteus in wild free-ranging M. fascicularis from Thailand at the KFP in Maha Sarakham. This study is also the first report on the occurrence of S. argenteus carriage in M. fascicularis from Thailand.
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Affiliation(s)
- Natapol Pumipuntu
- One Health Research Unit, Mahasarakham University, Maha Sarakham, Thailand,Veterinary Infectious Disease Research Unit, Mahasarakham University, Maha Sarakham, Thailand,Faculty of Veterinary Sciences, Mahasarakham University, Maha Sarakham, Thailand,Corresponding author: Natapol Pumipuntu, e-mail: Co-authors: TC: , KS: , SP: , TT: , PK: , PT: , AK: , MCR: , RCK:
| | - Thanyaphorn Chamnandee
- One Health Research Unit, Mahasarakham University, Maha Sarakham, Thailand,Faculty of Veterinary Sciences, Mahasarakham University, Maha Sarakham, Thailand
| | - Kittisak Saengthong
- One Health Research Unit, Mahasarakham University, Maha Sarakham, Thailand,Faculty of Veterinary Sciences, Mahasarakham University, Maha Sarakham, Thailand
| | - Suvit Pathomthanasarn
- One Health Research Unit, Mahasarakham University, Maha Sarakham, Thailand,Faculty of Veterinary Sciences, Mahasarakham University, Maha Sarakham, Thailand
| | - Tawatchai Tanee
- One Health Research Unit, Mahasarakham University, Maha Sarakham, Thailand,Faculty of Environment and Resource Studies, Mahasarakham University, Maha Sarakham, Thailand
| | - Pensri Kyes
- Department of Psychology, Center for Global Field Study, and Washington National Primate Research Center, University of Washington, Seattle, Washington, USA
| | - Penkhae Thamsenanupap
- One Health Research Unit, Mahasarakham University, Maha Sarakham, Thailand,Faculty of Environment and Resource Studies, Mahasarakham University, Maha Sarakham, Thailand
| | - Apichat Karaket
- Department of National Parks, Wildlife and Plant Conservation, Bangkok, Thailand
| | - Marilyn C. Roberts
- Department of Environmental and Occupational Health, University of Washington, Seattle, Washington, USA
| | - Randall C. Kyes
- Departments of Psychology, Global Health, and Anthropology, Center for Global Field Study, and Washington National Primate Research Center, University of Washington, Seattle, Washington, USA
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Genetic Characteristics of Methicillin-Resistant Staphylococcus argenteus Isolates Collected in the Dutch National MRSA Surveillance from 2008 to 2021. Microbiol Spectr 2022; 10:e0103522. [PMID: 36005448 PMCID: PMC9603934 DOI: 10.1128/spectrum.01035-22] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Staphylococcus argenteus is a recently described member of the Staphylococcus aureus complex (SAC) and is associated with human disease. The frequency and intensity of infections caused by S. argenteus are similar to those of Staphylococcus aureus. S. argenteus can harbor antibiotic resistance genes and a variety of virulence factors analogous to methicillin-resistant S. aureus (MRSA). The aim of our study was to analyze a collection of isolates in the Dutch national MRSA surveillance from January 2008 until March 2021 that were nontypeable by multilocus variable-number tandem-repeat analysis (MLVA). Matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-ToF MS) was used for identifying the S. argenteus isolates, and whole-genome sequencing and SeqSphere were used to generate an in-house whole-genome multilocus sequence typing (wgMLST) scheme for typing the isolates. Furthermore, the presence of antibiotic resistance genes, replicons, and virulence genes was determined. Of 52,467 isolates submitted as MRSA from January 2008 until March 2021, 64 isolates (0.12%) were nontypeable with MLVA, and 54 of them were identified with mass spectrometry (MALDI-ToF MS) as S. argenteus. It appeared in retrospect that the first methicillin-resistant S. argenteus (MRSArg) was already submitted in 2008. An in-house-developed S. argenteus wgMLST scheme revealed that S. argenteus isolates clustered in 5 genomic groups which were characterized by distinct MLST types, resistomes, plasmid replicon families, and virulence factors. All but one isolate carried the staphylococcal chromosomal cassette mec (SCCmec) type IV harboring the methicillin resistance gene mecA and represent MRSArg. Most of the isolates with SCCmec subtype IVc(2B) had a trimethoprim resistance gene, dfrG, and harbored a blaZ-carrying plasmid, and most MRSArg isolates have the immune-modulating genes scn and sak. Nine of the 47 isolates carried enterotoxin-encoding genes seg, sei, sem, seo, and seu, which might be able to cause food poisoning. In some persons there was long-term persistence of MRSArg, and there were several genetically related MRSArg isolates in people living in close proximity, suggesting direct human-human transmission. IMPORTANCE We show that MRSArg has been circulating in the Netherlands since at least 2008. Although MRSArg is distinct from MRSA, it has a comparable population structure and carries similar resistance and virulence genes. The Dutch national MRSA surveillance has been expanded to include other methicillin-resistant members of the S. aureus complex, such as S. argenteus and Staphylococcus schweitzeri.
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Hirai J, Suzuki H, Sakanashi D, Kuge Y, Kishino T, Asai N, Hagihara M, Mikamo H. The First Case Report of Community-Acquired Infective Endocarditis Due to Sequence Type 1223 Staphylococcus argenteus Complicated with Convexity Subarachnoid Hemorrhage. Infect Drug Resist 2022; 15:4963-4970. [PMID: 36060234 PMCID: PMC9438795 DOI: 10.2147/idr.s373352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 08/15/2022] [Indexed: 11/23/2022] Open
Affiliation(s)
- Jun Hirai
- Department of Clinical Infectious Diseases, Aichi Medical University Hospital, Nagakute, Aichi, Japan
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Nagakute, Aichi, Japan
- Correspondence: Jun Hirai, Department of Clinical Infectious Diseases, Aichi Medical University Hospital, 1-1, Yazako-karimata, Nagakute, Aichi, 480-1195, Japan, Tel +81-561-62-3311, Fax +81-561-76-2673, Email
| | - Hiroyuki Suzuki
- Department of Neurology, Aichi Medical University, Nagakute, Aichi, Japan
| | - Daisuke Sakanashi
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Nagakute, Aichi, Japan
| | - Yuji Kuge
- Department of Emergency and Critical Care Medicine, Aichi Medical University Hospital, Nagakute, Aichi, Japan
| | - Takaaki Kishino
- Department of Emergency and Critical Care Medicine, Aichi Medical University Hospital, Nagakute, Aichi, Japan
| | - Nobuhiro Asai
- Department of Clinical Infectious Diseases, Aichi Medical University Hospital, Nagakute, Aichi, Japan
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Nagakute, Aichi, Japan
| | - Mao Hagihara
- Department of Molecular Epidemiology and Biomedical Sciences, Aichi Medical University, Nagakute, Aichi, Japan
| | - Hiroshige Mikamo
- Department of Clinical Infectious Diseases, Aichi Medical University Hospital, Nagakute, Aichi, Japan
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Nagakute, Aichi, Japan
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11
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Akoua-Koffi C, Kacou N’Douba A, Djaman JA, Herrmann M, Schaumburg F, Niemann S. Staphylococcus schweitzeri—An Emerging One Health Pathogen? Microorganisms 2022; 10:microorganisms10040770. [PMID: 35456820 PMCID: PMC9026344 DOI: 10.3390/microorganisms10040770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 03/28/2022] [Accepted: 03/31/2022] [Indexed: 11/22/2022] Open
Abstract
The Staphylococcus aureus-related complex is formed by the Staphylococcus aureus, Staphylococcus schweitzeri, Staphylococcus argenteus, Staphylococcus roterodami and Staphylococcus singaporensis. Within this complex, S. schweitzeri is the only species mainly found in African wildlife, but it is rarely detected as a colonizer in humans or as a contaminant of fomites. The few detections in humans are most likely spillover events after contact with wildlife. However, since S. schweitzeri can be misidentified as S. aureus using culture-based routine techniques, it is likely that S. schweitzeri is under-reported in humans. The low number of isolates in humans, though, is consistent with the fact that the pathogen has typical animal adaptation characteristics (e.g., growth kinetics, lack of immune evasion cluster and antimicrobial resistance); however, evidence from selected in vitro assays (e.g., host cell invasion, cell activation, cytotoxicity) indicate that S. schweitzeri might be as virulent as S. aureus. In this case, contact with animals colonized with S. schweitzeri could constitute a risk for zoonotic infections. With respect to antimicrobial resistance, all described isolates were found to be susceptible to all antibiotics tested, and so far no data on the development of spontaneous resistance or the acquisition of resistance genes such the mecA/mecC cassette are available. In summary, general knowledge about this pathogen, specifically on the potential threat it may incur to human and animal health, is still very poor. In this review article, we compile the present state of scientific research, and identify the knowledge gaps that need to be filled in order to reliably assess S. schweitzeri as an organism with global One Health implications.
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Affiliation(s)
- Chantal Akoua-Koffi
- Centre Hospitalier Universitaire de Bouaké, Bouaké P.O. Box BP 1174, Côte d’Ivoire;
- Department of Biology, Université Alassane Ouattara de Bouaké, Bouaké P.O. Box BP V18, Côte d’Ivoire
| | - Adèle Kacou N’Douba
- Training and Research Unit of Medical Sciences, Félix Houphouët-Boigny University, Abidjan P.O. Box BP 44, Côte d’Ivoire;
- Centre Hospitalier Universitaire Angré, Abidjan P.O. Box BP 1530, Côte d’Ivoire
| | - Joseph Allico Djaman
- Training and Research Unit of Biosciences, Félix Houphouët Boigny University, Abidjan P.O. Box BP V 34, Côte d’Ivoire;
| | - Mathias Herrmann
- Institute of Medical Microbiology, University Hospital Münster, 48149 Münster, Germany; (M.H.); (F.S.)
| | - Frieder Schaumburg
- Institute of Medical Microbiology, University Hospital Münster, 48149 Münster, Germany; (M.H.); (F.S.)
| | - Silke Niemann
- Institute of Medical Microbiology, University Hospital Münster, 48149 Münster, Germany; (M.H.); (F.S.)
- Correspondence: ; Tel.: +49-251-835-5369
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12
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Canine Staphylococcus argenteus: Case Report from The Netherlands. Pathogens 2022; 11:pathogens11020153. [PMID: 35215097 PMCID: PMC8876332 DOI: 10.3390/pathogens11020153] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 01/20/2022] [Accepted: 01/24/2022] [Indexed: 02/04/2023] Open
Abstract
Staphylococcus argenteus has been reported worldwide in humans, while reported non-human cases are sparse. Its complete epidemiology, alongside its infectivity and pathogenicity in humans and non-humans, remain to be clarified. Here, we describe the first reported canine Staphylococcus argenteus, causing a deep wound infection in a Labrador retriever after orthopedic surgery. The closed genome is reported, with phylogenic and genetic analyses, as well as extensive phenotypic antimicrobial susceptibility testing for human and veterinary antibiotics. No genetic explanation could be found for its interaction with a canine host, underscoring the intrinsic multispecies pathogenicity and potential (anthropo-)zoonotic spread of Staphylococcus argenteus.
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Wu S, Pang R, Huang J, Zhang F, Cai Z, Zhang J, Chen M, Xue L, Gu Q, Wang J, Ding Y, Wan Q, Wu Q. Evolutionary Divergence of the Novel Staphylococcal Species Staphylococcus argenteus. Front Microbiol 2021; 12:769642. [PMID: 34867903 PMCID: PMC8640356 DOI: 10.3389/fmicb.2021.769642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 10/25/2021] [Indexed: 11/17/2022] Open
Abstract
Currently, invasive infections caused by Staphylococcus argenteus, which is a recently named staphylococcal species, are increasingly reported worldwide. However, only a few genomic studies of S. argenteus have offered comprehensive information regarding its genetic diversity, epidemiological characteristics, antimicrobial resistance genes (ARGs), virulence genes and other profiles. Here, we describe a comparative genomic analysis by population structure, pangenome, panmobilome, region-specific accessory genes confer an adaptive advantage in 153 S. argenteus strains which comprised 24 strains sequenced in this study and 129 strains whose genome sequences were available from GenBank. As a result, the population of S. argenteus comprised seven genetically distinct clades, including two major clades (C1 and C2), with distinct isolation source patterns. Pangenome analysis revealed that S. argenteus has an open pangenome composed of 7,319 genes and a core genome composed of 1,508 genes. We further determined the distributions of 75 virulence factors (VFs) and 30 known ARGs and identified at least four types of plasmids and 93 complete or partial putative prophages. It indicate that S. argenteus may show a similar level of pathogenicity to that of S. aureus. This study also provides insights into the evolutionary divergence of this pathogen, indicating that the geographical distribution was a potential driving force behind the evolutionary divergence of S. argenteus. The preferential horizontal acquisition of particular elements, such as staphylococcal cassette chromosome mec elements and plasmids, was observed in specific regions, revealing potential gene exchange between S. argenteus strains and local S. aureus strains. Moreover, multiple specific genes related to environmental adaptation were identified in strains isolated from East Asia. However, these findings may help promote our understanding of the evolutionary divergence of this bacterium at a high genetic resolution by providing insights into the epidemiology of S. argenteus and may help combat its spread.
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Affiliation(s)
- Shi Wu
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Rui Pang
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Jiahui Huang
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Feng Zhang
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Zhihe Cai
- Guangdong Huankai Microbial Science and Technology Co. Ltd., Guangzhou, China
| | - Jumei Zhang
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Moutong Chen
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Liang Xue
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Qihui Gu
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Juan Wang
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Yu Ding
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Qiang Wan
- Guangdong Huankai Microbial Science and Technology Co. Ltd., Guangzhou, China
| | - Qingping Wu
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
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14
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Goswami C, Fox S, Holden M, Leanord A, Evans TJ. Genomic Analysis of Global Staphylococcus argenteus Strains Reveals Distinct Lineages With Differing Virulence and Antibiotic Resistance Gene Content. Front Microbiol 2021; 12:795173. [PMID: 34925305 PMCID: PMC8677677 DOI: 10.3389/fmicb.2021.795173] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 11/05/2021] [Indexed: 11/13/2022] Open
Abstract
Infections due to Staphylococcus argenteus have been increasingly reported worldwide and the microbe cannot be distinguished from Staphylococcus aureus by standard methods. Its complement of virulence determinants and antibiotic resistance genes remain unclear, and how far these are distinct from those produced by S. aureus remains undetermined. In order to address these uncertainties, we have collected 132 publicly available sequences from fourteen different countries, including the United Kingdom, between 2005 and 2018 to study the global genetic structure of the population. We have compared the genomes for antibiotic resistance genes, virulence determinants and mobile genetic elements such as phages, pathogenicity islands and presence of plasmid groups between different clades. 20% (n = 26) isolates were methicillin resistant harboring a mecA gene and 88% were penicillin resistant, harboring the blaZ gene. ST2250 was identified as the most frequent strain, but ST1223, which was the second largest group, contained a marginally larger number of virulence genes compared to the other STs. Novel S. argenteus pathogenicity islands were identified in our isolates harboring tsst-1, seb, sec3, ear, selk, selq toxin genes, as well as chromosomal clusters of enterotoxin and superantigen-like genes. Strain-specific type I modification systems were widespread which would limit interstrain transfer of genetic material. In addition, ST2250 possessed a CRISPR/Cas system, lacking in most other STs. S. argenteus possesses important genetic differences from S. aureus, as well as between different STs, with the potential to produce distinct clinical manifestations.
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Affiliation(s)
- Cosmika Goswami
- Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, United Kingdom
| | - Stephen Fox
- Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, United Kingdom
| | - Matthew Holden
- School of Medicine, University of St Andrews, St Andrews, United Kingdom
| | - Alistair Leanord
- Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, United Kingdom
- Scottish Microbiology Reference Laboratories, Glasgow, United Kingdom
| | - Thomas J. Evans
- Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, United Kingdom
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15
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Jauneikaite E, Pichon B, Mosavie M, Fallowfield JL, Davey T, Thorpe N, Nelstrop A, Sriskandan S, Lamb LE. Staphylococcus argenteus transmission among healthy Royal Marines: A molecular epidemiology case-study. J Infect 2021; 83:550-553. [PMID: 34469709 DOI: 10.1016/j.jinf.2021.08.040] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 08/03/2021] [Accepted: 08/26/2021] [Indexed: 11/17/2022]
Abstract
Objectives During a prospective study of S. aureus carriage in Royal Marines recruits, six S. argenteus strains were identified in four recruits. As S. argenteus sepsis leads to mortality similar to S. aureus, we determined the potential for within same troop transmission, to evaluate future outbreak risk. Methods We used whole-genome sequencing to characterise S. argenteus and investigate phylogenetic relationships between isolates. Results S. argenteus strains (t5078, ST2250) were detected in 4/40 recruits in the same troop (training cohort) in weeks 1, 6 or 15 of training. No mec, tsst or LukPV genes were detected. We identified differences of 1-17 core SNPs between S. argenteus from different recruits. In two recruits, two S. argenteus strains were isolated; these could be distinguished by 2 and 15 core SNPs. Conclusions The identification of S. argenteus within a single troop from the total recruit population suggests a common source for transmission, though high number of SNPs were identified, both within-host and within-cluster. The high number of SNPs between some isolates may indicate a common source of diverse isolates or a high level of S. argenteus mutation in carriage. S. argenteus is newly recognized species; and understanding of the frequency of genetic changes during transmission and transition from asymptomatic carriage to disease is required.
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Affiliation(s)
- Elita Jauneikaite
- Department of Infectious Disease Epidemiology, School of Public Health, Imperial College London, London, UK; NIHR Health Protection Research Unit in Healthcare Associated Infections and Antimicrobial Resistance, Department of Infectious Disease, Faculty of Medicine, Imperial College London, London W2 1PG, UK.
| | - Bruno Pichon
- NIHR Health Protection Research Unit in Healthcare Associated Infections and Antimicrobial Resistance, Department of Infectious Disease, Faculty of Medicine, Imperial College London, London W2 1PG, UK; Healthcare Associated Infection and Antimicrobial Resistance, National Infection Service, Public Health England, Colindale, UK
| | - Mia Mosavie
- NIHR Health Protection Research Unit in Healthcare Associated Infections and Antimicrobial Resistance, Department of Infectious Disease, Faculty of Medicine, Imperial College London, London W2 1PG, UK
| | | | | | | | - Andrew Nelstrop
- Commando Training Centre Royal Marines, Lympstone, UK; Defence Primary Healthcare, Plymouth, UK
| | - Shiranee Sriskandan
- NIHR Health Protection Research Unit in Healthcare Associated Infections and Antimicrobial Resistance, Department of Infectious Disease, Faculty of Medicine, Imperial College London, London W2 1PG, UK
| | - Lucy E Lamb
- NIHR Health Protection Research Unit in Healthcare Associated Infections and Antimicrobial Resistance, Department of Infectious Disease, Faculty of Medicine, Imperial College London, London W2 1PG, UK; Academic Department of Military Medicine, Royal Centre for Defence Medicine (Research and Academia), Birmingham, UK; Royal Free London NHS Foundation Trust, London NW3 2QG, UK.
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16
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Phenotypic and Genomic Profiling of Staphylococcus argenteus in Canada and the United States and Recommendations for Clinical Result Reporting. J Clin Microbiol 2021; 59:JCM.02470-20. [PMID: 33731414 DOI: 10.1128/jcm.02470-20] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Accepted: 03/07/2021] [Indexed: 11/20/2022] Open
Abstract
Staphylococcus argenteus is a newly described species, formerly known as S. aureus clonal complex 75 (CC75). Here, we describe the largest collection of S. argenteus isolates in North America, highlighting identification challenges. We present phenotypic and genomic characteristics and provide recommendations for clinical reporting. Between 2017 and 2019, 22 isolates of S. argenteus were received at 2 large reference laboratories for identification. Identification with routine methods (biochemical, matrix-assisted laser desorption ionization-time of flight mass spectrometry [MALDI-TOF MS], 16S rRNA gene analysis) proved challenging to confidently distinguish these isolates from S. aureus Whole-genome sequencing analysis was employed to confirm identifications. Using several different sequence-based analyses, all clinical isolates under investigation were confirmed to be S. argenteus with clear differentiation from S. aureus Seven of 22 isolates were recovered from sterile sites, 11 from nonsterile sites, and 4 from surveillance screens. While sequence types ST1223/coa type XV, ST2198/coa type XIV, and ST2793/coa type XId were identified among the Canadian isolates, the majority of isolates (73%) belonged to multilocus sequence types (MLST) ST2250/coa type XId and exhibited a high degree of homology at the genomic level. Despite this similarity, 5 spa types were identified among ST2250 isolates, demonstrating some diversity between strains. Several isolates carried mecA, as well as other resistance and virulence determinants (e.g., PVL, TSST-1) commonly associated with S. aureus Based on our findings, the growing body of literature on S. argenteus, the potential severity of infections, and possible confusion associated with reporting, including use of incorrect breakpoints for susceptibility results, we make recommendations for clinical laboratories regarding this organism.
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Aung MS, Urushibara N, Kawaguchiya M, Hirose M, Ike M, Ito M, Kobayashi N. Distribution of Virulence Factors and Resistance Determinants in Three Genotypes of Staphylococcus argenteus Clinical Isolates in Japan. Pathogens 2021; 10:pathogens10020163. [PMID: 33546443 PMCID: PMC7913748 DOI: 10.3390/pathogens10020163] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 01/29/2021] [Accepted: 02/01/2021] [Indexed: 11/16/2022] Open
Abstract
Staphylococcus argenteus, a novel staphylococcal species independent of S. aureus, causes a wide spectrum of infectious diseases. As detection of this species from humans and animals has been increasingly reported worldwide, its growing virulence and drug resistance via external genetic determinants has become concerning. In this study, the prevalence and genetic characteristics of virulence factors and drug resistance determinants were investigated for 82 S. argenteus clinical isolates in Hokkaido, Japan, for a one-year period starting in August 2019. These S. argenteus isolates corresponded to 0.66% of the total number of S. aureus isolates collected in the same period. The most prevalent genotype was sequence type (ST) 2250 and staphylocoagulase (coa) genotype XId (45.1%, n = 37), followed by ST1223-coa XV (30.5%, n = 25) and ST2198-coa XIV (24.4%, n = 20). Panton-Valentine leukocidin genes (lukS-PV-lukF-PV) were identified in a single ST2250 isolate. Only ST1223 isolates had the enterotoxin gene cluster (egc-2), seb, and selw (detection rate; 100%, 60%, and 84%, respectively), while sec, sey, sel26-sel27, tst-1 were only detected in ST2250 isolates (detection rate; 10.8%, 100%, 67.6%, and 10.8%, respectively). ST2198 isolates harbored selx at a significantly higher rate (60%) than isolates of other STs. Although most of S. argenteus isolates were susceptible to antimicrobials examined, ST2198 showed higher resistance rates to penicillin, macrolides, and aminoglycosides than other STs, and it harbored various resistance genes such as blaZ, erm(C), msr(A), lnuA, and aac(6′)-Ie-aph(2″)-Ia. Only one ST2250 isolate possessed SCCmec-IVc, showing resistance to oxacillin. blaZ was the most prevalent determinant of resistance in the three STs and belonged to two plasmid groups and a chromosomal group, suggesting its diverse origin. lnu(A) in ST2198 isolates was assigned to a major cluster with various staphylococcal species. The present study indicates that the prevalence of virulence factors and drug resistance profile/determinants differ depending on the lineage (ST) of S. argenteus.
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Affiliation(s)
- Meiji Soe Aung
- Department of Hygiene, Sapporo Medical University School of Medicine, Hokkaido, Sapporo 060-8556, Japan; (N.U.); (M.K.); (N.K.)
- Correspondence: ; Tel.: +81-11-611-2111
| | - Noriko Urushibara
- Department of Hygiene, Sapporo Medical University School of Medicine, Hokkaido, Sapporo 060-8556, Japan; (N.U.); (M.K.); (N.K.)
| | - Mitsuyo Kawaguchiya
- Department of Hygiene, Sapporo Medical University School of Medicine, Hokkaido, Sapporo 060-8556, Japan; (N.U.); (M.K.); (N.K.)
| | - Mina Hirose
- Division of Pediatric Dentistry, Department of Oral Growth and Development, School of Dentistry, Health Sciences University of Hokkaido, Ishikari-Tobetsu 061-0293, Japan;
| | - Miyo Ike
- Sapporo Clinical Laboratory, Incorporated, Hokkaido, Sapporo 060-0005, Japan; (M.I.); (M.I.)
| | - Masahiko Ito
- Sapporo Clinical Laboratory, Incorporated, Hokkaido, Sapporo 060-0005, Japan; (M.I.); (M.I.)
| | - Nobumichi Kobayashi
- Department of Hygiene, Sapporo Medical University School of Medicine, Hokkaido, Sapporo 060-8556, Japan; (N.U.); (M.K.); (N.K.)
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Thuy DB, Campbell J, Thuy CT, Hoang NVM, Voong Vinh P, Nguyen TNT, Nguyen Ngoc Minh C, Pham DT, Rabaa MA, Lan NPH, Hao NV, Thwaites GE, Thwaites CL, Baker S, Chau NVV, Chung The H. Colonization with Staphylococcus aureus and Klebsiella pneumoniae causes infections in a Vietnamese intensive care unit. Microb Genom 2021; 7:000514. [PMID: 33502303 PMCID: PMC8208697 DOI: 10.1099/mgen.0.000514] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Accepted: 12/21/2020] [Indexed: 12/26/2022] Open
Abstract
Pre-existing colonization with Staphylococcus aureus or Klebsiella pneumoniae has been found to increase the risk of infection in intensive care patients. We previously conducted a longitudinal study to characterize colonization of these two organisms in patients admitted to intensive care in a hospital in southern Vietnam. Here, using genomic and phylogenetic analyses, we aimed to assess the contribution these colonizing organisms made to infections. We found that in the majority of patients infected with S. aureus or K. pneumoniae, the sequence type of the disease-causing (infecting) isolate was identical to that of corresponding colonizing organisms in the respective patient. Further in-depth analysis revealed that in patients infected by S. aureus ST188 and by K. pneumoniae ST17, ST23, ST25 and ST86, the infecting isolate was closely related to and exhibited limited genetic variation relative to pre-infection colonizing isolates. Multidrug-resistant S. aureus ST188 was identified as the predominant agent of colonization and infection. Colonization and infection by K. pneumoniae were characterized by organisms with limited antimicrobial resistance profiles but extensive repertoires of virulence genes. Our findings augment the understanding of the link between bacterial colonization and infection in a low-resource setting, and could facilitate the development of novel evidence-based approaches to prevent and treat infections in high-risk patients in intensive care.
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Affiliation(s)
- Duong Bich Thuy
- The Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam
| | - James Campbell
- Oxford University Clinical Research Unit, Ho Chi Minh City, Vietnam
- Centre for Tropical Medicine and Global Health, Nuffield Department of Clinical Medicine, Oxford University, Oxford, UK
| | - Cao Thu Thuy
- Oxford University Clinical Research Unit, Ho Chi Minh City, Vietnam
| | | | - Phat Voong Vinh
- Oxford University Clinical Research Unit, Ho Chi Minh City, Vietnam
| | | | | | - Duy Thanh Pham
- Oxford University Clinical Research Unit, Ho Chi Minh City, Vietnam
- Centre for Tropical Medicine and Global Health, Nuffield Department of Clinical Medicine, Oxford University, Oxford, UK
| | - Maia A. Rabaa
- Oxford University Clinical Research Unit, Ho Chi Minh City, Vietnam
- Centre for Tropical Medicine and Global Health, Nuffield Department of Clinical Medicine, Oxford University, Oxford, UK
| | | | - Nguyen Van Hao
- The Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam
| | - Guy E. Thwaites
- Oxford University Clinical Research Unit, Ho Chi Minh City, Vietnam
- Centre for Tropical Medicine and Global Health, Nuffield Department of Clinical Medicine, Oxford University, Oxford, UK
| | - C. Louise Thwaites
- Oxford University Clinical Research Unit, Ho Chi Minh City, Vietnam
- Centre for Tropical Medicine and Global Health, Nuffield Department of Clinical Medicine, Oxford University, Oxford, UK
| | - Stephen Baker
- Cambridge Institute of Therapeutic Immunology & Infectious Disease (CITIID), University of Cambridge, Cambridge, UK
| | | | - Hao Chung The
- Oxford University Clinical Research Unit, Ho Chi Minh City, Vietnam
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19
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Genomic Profiling of Evolving Daptomycin Resistance in a Patient with Recurrent Staphylococcus argenteus Sepsis. Antimicrob Agents Chemother 2020; 64:AAC.00961-20. [PMID: 32601156 DOI: 10.1128/aac.00961-20] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 06/24/2020] [Indexed: 01/31/2023] Open
Abstract
Staphylococcus argenteus is a novel staphylococcal species associated with invasive disease. We report the first case of daptomycin/vancomycin-resistant S. argenteus, initially speciated as Staphylococcus aureus, that developed from repeated treatment with daptomycin for a complex vascular graft infection. Whole-genome sequencing of longitudinally collected isolates identified acquisition of MprF S337L, a mutation predicted to increase surface charge and repel cationic molecules.
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20
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Mitsutake K, Watanabe N, Karaushi H, Tarumoto N, Koyama S, Ebihara Y, Yoshitake A, Nakajima H. Thoracic aortic mycotic aneurysm due to Staphylococcus argenteus: A case report. J Infect Chemother 2020; 26:1213-1215. [PMID: 32839112 DOI: 10.1016/j.jiac.2020.05.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Revised: 04/30/2020] [Accepted: 05/06/2020] [Indexed: 11/17/2022]
Abstract
Staphylococcus argenteus was subdivided as a novel species from Staphylococcus aureus in 2014. We herein report a case of mycotic aneurysm caused by S. argenteus. A 59-year-old woman with diabetes and schizophrenia visited at the emergency room because of falling. Chest computed tomography revealed a left humerus fracture and a thoracic aortic aneurysm. With her elevated WBC count and CRP level, she was suspected to have a mycotic aneurysm. After being transferred to our hospital, vascular graft replacement surgery was performed. Isolates of blood cultures and surgical specimens were identified as S. argenteus by Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MAS MALDI Biotyper Ver. 8.0). Although S. argenteus lacks staphyloxanthin, a carotenoid pigment, it is coagulase positive. In addition to traditional and automated biochemical identification systems, even MALDI-TOF MAS may misidentify the organism as S. aureus depending on its version. S. argenteus should be considered when coagulase-negative Staphylococcus like colonies are obtained from samples of S. aureus infection. To our knowledge, this is the first case of aortic mycotic aneurysm caused by S. argenteus in Japan. Although S. argenteus is considered less virulent than Staphylococcus aureus, we should closely monitor the prevalence and the clinical impact of this pathogen on community-acquired infections and health care-associated infections.
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Affiliation(s)
- Kotaro Mitsutake
- Department of Infectious Diseases and Infection Control, Saitama International Medical Center, Saitama Medical University, 1397-1 Yamane, Hidaka, Saitama, 350-1298, Japan.
| | - Noriyuki Watanabe
- Department of Laboratory Medicine, Saitama International Medical Center, Saitama Medical University, 1397-1 Yamane, Hidaka, Saitama, 350-1298, Japan
| | - Haruka Karaushi
- Department of Pharmacy, Saitama International Medical Center, Saitama Medical University, 1397-1 Yamane, Hidaka, Saitama, 350-1298, Japan
| | - Norihito Tarumoto
- Department of Infectious Disease and Infection Control, Saitama Medical University, Saitama, 38 Morohongo, Moroyama-machi, Iruma-gun, Saitama, 350-0495, Japan
| | - Sachie Koyama
- Department of Laboratory Medicine, Saitama International Medical Center, Saitama Medical University, 1397-1 Yamane, Hidaka, Saitama, 350-1298, Japan
| | - Yasuhiro Ebihara
- Department of Laboratory Medicine, Saitama International Medical Center, Saitama Medical University, 1397-1 Yamane, Hidaka, Saitama, 350-1298, Japan
| | - Akihiro Yoshitake
- Department of Cardiovascular Surgery, Saitama International Medical Center, Saitama Medical University, 1397-1 Yamane, Hidaka, Saitama, 350-1298, Japan
| | - Hiroyuki Nakajima
- Department of Cardiovascular Surgery, Saitama International Medical Center, Saitama Medical University, 1397-1 Yamane, Hidaka, Saitama, 350-1298, Japan
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21
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Heterogeneity of Molecular Characteristics among Staphylococcus argenteus Clinical Isolates (ST2250, ST2793, ST1223, and ST2198) in Northern Taiwan. Microorganisms 2020; 8:microorganisms8081157. [PMID: 32751608 PMCID: PMC7464136 DOI: 10.3390/microorganisms8081157] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 07/24/2020] [Accepted: 07/28/2020] [Indexed: 12/23/2022] Open
Abstract
Staphylococcus argenteus is an emerging pathogen that is recognized as non-pigmented Staphylococcus aureus. However, the molecular characteristics of S. argenteus and its virulence factors have not been well studied. The present study analyzed 96 isolates of S. argenteus recovered from blood. Identification of S. argenteus was based on results of MALDI-TOF MS and lacking crtM gene. All 96 isolates were methicillin-susceptible. Multilocus sequence typing (MLST) revealed four sequence types: ST2250 (n = 72), ST2793 (n = 12), ST1223 (n = 10), and ST2198 (n = 2). All 72 ST2250 isolates harbored CRISPR loci with polymorphism of direct repeats and spacers, but no other STs carried CRISPR loci. To date, ST2793 isolates have rarely been reported in other countries. Collagen-binding adhesin gene (cna) and staphylococcal enterotoxin type C (sec) were detected in 12 (100%) and 8 (67%) ST2793 isolates, respectively. ST1223 has been reported as food poisoning pathogens, and enterotoxin gene clusters (egc) were detected in all 10 isolates, while seb gene was detected in three isolates. Two ST2198 isolates carried bone sialoprotein-binding protein gene (bbp), belonging to agr type IV. Our focus on the heterogeneity of molecular characterization in four ST types of S. argenteus revealed that S. argenteus had been isolated as early as 2000. Each ST type of S. argenteus harbors particular genetic markers that may contribute to their virulence.
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22
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Rossi BF, Bonsaglia ÉCR, Castilho IG, Dantas STA, Langoni H, Pantoja JCF, Júnior AF, Gonçalves JL, Santos MV, Mota RA, Rall VLM. First investigation of Staphylococcus argenteus in a Brazilian collections of S. aureus isolated from bovine mastitis. BMC Vet Res 2020; 16:252. [PMID: 32690007 PMCID: PMC7372812 DOI: 10.1186/s12917-020-02472-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 07/13/2020] [Indexed: 02/04/2023] Open
Abstract
Background Staphylococcus argenteus is a new specie positive coagulase staphylococci. We investigate the presence of S. argenteus in isolates previously classified as S. aureus, obtained from the milk of cows with mastitis in Brazil. Results Among 856 S. aureus tested in chocolate agar, tryptone soya agar and salt egg yolk agar, white or colorless colonies were observed in 185 (21.6%) isolates. Regarding the ctrOPQMN operon, 111 (60%) presented the complete cluster. Despite some missing genes in this cluster, the remaining strains (74) were confirmed as S. aureus using the nrps gene. Conclusions As far as we know, this is the first review of S. aureus collection in Brazil and S. argenteus does not appear to be a significant problem in Brazilian herds.
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Affiliation(s)
- Bruna F Rossi
- Department of Chemical and Biological Sciences, Institute of Biosciences, Sao Paulo State University - UNESP, Post Office Box 510, Botucatu, Sao Paulo, 18618-970, Brazil
| | - Érika C R Bonsaglia
- Department of Chemical and Biological Sciences, Institute of Biosciences, Sao Paulo State University - UNESP, Post Office Box 510, Botucatu, Sao Paulo, 18618-970, Brazil.
| | - Ivana G Castilho
- Department of Chemical and Biological Sciences, Institute of Biosciences, Sao Paulo State University - UNESP, Post Office Box 510, Botucatu, Sao Paulo, 18618-970, Brazil
| | - Stéfani T A Dantas
- Department of Chemical and Biological Sciences, Institute of Biosciences, Sao Paulo State University - UNESP, Post Office Box 510, Botucatu, Sao Paulo, 18618-970, Brazil
| | - Hélio Langoni
- Department of Hygiene Veterinary and Public Health, Sao Paulo State University, Botucatu, SP, Brazil
| | - José C F Pantoja
- Department of Hygiene Veterinary and Public Health, Sao Paulo State University, Botucatu, SP, Brazil
| | - Ary Fernandes Júnior
- Department of Chemical and Biological Sciences, Institute of Biosciences, Sao Paulo State University - UNESP, Post Office Box 510, Botucatu, Sao Paulo, 18618-970, Brazil
| | - Juliano L Gonçalves
- Department of Animal Science, School of Veterinary Medicine and Animal Science (USP), Pirassununga, SP, Brazil
| | - Marcos V Santos
- Department of Animal Science, School of Veterinary Medicine and Animal Science (USP), Pirassununga, SP, Brazil
| | - Rinaldo A Mota
- Departament of Veterinary Medicine, Federal Rural University of Pernambuco, Recife, PE, Brazil
| | - Vera L M Rall
- Department of Chemical and Biological Sciences, Institute of Biosciences, Sao Paulo State University - UNESP, Post Office Box 510, Botucatu, Sao Paulo, 18618-970, Brazil
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23
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Alhussein F, Fürstenberg J, Gaupp R, Eisenbeis J, Last K, Becker SL, Papan C. Human infections caused by Staphylococcus argenteus in Germany: genetic characterisation and clinical implications of novel species designation. Eur J Clin Microbiol Infect Dis 2020; 39:2461-2465. [PMID: 32572654 PMCID: PMC7669802 DOI: 10.1007/s10096-020-03950-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 06/09/2020] [Indexed: 11/01/2022]
Abstract
We report a series of Staphylococcus argenteus infections from Saarland, Germany. Travel histories were unremarkable for extra-European sojourns, indicating an autochthonous transmission mode. Multilocus sequence typing revealed that all isolates were members of the clonal complex CC2250. In only one case, guideline-adherent treatment with an isoxazolyl penicillin was prescribed. Our report illustrates the perils of novel species designations, which may lead to misconceptions and suboptimal treatment choices among clinicians.
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Affiliation(s)
- Farah Alhussein
- Centre for Infectious Diseases, Institute of Medical Microbiology and Hygiene, Saarland University, Kirrberger Strasse, Building 43, 66421, Homburg, Germany
| | - Judith Fürstenberg
- Centre for Infectious Diseases, Institute of Medical Microbiology and Hygiene, Saarland University, Kirrberger Strasse, Building 43, 66421, Homburg, Germany
| | - Rosmarie Gaupp
- Centre for Infectious Diseases, Institute of Medical Microbiology and Hygiene, Saarland University, Kirrberger Strasse, Building 43, 66421, Homburg, Germany
| | - Janina Eisenbeis
- Centre for Infectious Diseases, Institute of Medical Microbiology and Hygiene, Saarland University, Kirrberger Strasse, Building 43, 66421, Homburg, Germany
| | - Katharina Last
- Centre for Infectious Diseases, Institute of Medical Microbiology and Hygiene, Saarland University, Kirrberger Strasse, Building 43, 66421, Homburg, Germany
| | - Sören L Becker
- Centre for Infectious Diseases, Institute of Medical Microbiology and Hygiene, Saarland University, Kirrberger Strasse, Building 43, 66421, Homburg, Germany
| | - Cihan Papan
- Centre for Infectious Diseases, Institute of Medical Microbiology and Hygiene, Saarland University, Kirrberger Strasse, Building 43, 66421, Homburg, Germany.
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24
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Yamada K, Sasaki M, Imai W, Kato M, Maehara C, Yasui K, Fukuzawa S, Murakami H, Kakisu K, Hori Y, Nagasawa T, Aoki K, Yamaguchi T, Ishii Y, Tateda K. Bacterial keratoconjunctivitis caused by Staphylococcus argenteus belonging to sequence type 1223 isolated in Japan. J Infect Chemother 2020; 26:1002-1004. [PMID: 32471795 DOI: 10.1016/j.jiac.2020.04.026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Revised: 04/20/2020] [Accepted: 04/28/2020] [Indexed: 11/25/2022]
Abstract
Staphylococcus argenteus, characterized by the formation of non-pigmented (white) colonies, was recently identified as a new lineage separated from Staphylococcus aureus. However, correct identification of this lineage is difficult because of the similar characteristics to S. aureus. Here, we describe the first known case of keratoconjunctivitis due to S. argenteus in a 64-year-old man with diabetes. The symptoms of the patient were not improved by antibiotic therapy using levofloxacin eye drops (15 mg/mL). The conjunctival scraping was cultured, and coagulase-positive staphylococci forming white colonies were detected. Matrix-assisted laser desorption/ionization-time of flight mass spectrometry confirmed the species as S. argenteus with a spectral score of 1.97. After the antibiotic was changed to vancomycin eye drops (10 mg/mL), the patient's symptom clearly improved. Multi-locus sequence typing showed that this isolate belonged to sequence type 1223, which has been predominantly isolated worldwide. Furthermore, this isolate harbored various virulence genes associated with S. aureus, such as staphylococcal enterotoxins and leukocidin. Since only limited information is available for this organism, further studies are needed to establish the epidemiology of S. argenteus.
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Affiliation(s)
- Kageto Yamada
- Department of Clinical Laboratory, Toho University Medical Center Omori Hospital, 6-11-1 Omori-nishi, Ota-ku, Tokyo 143-8541, Japan; Department of Microbiology and Infectious Disease, Toho University Graduate School of Medicine, 5-21-16 Omori-nishi, Ota-ku, Tokyo 143-8540, Japan.
| | - Masakazu Sasaki
- Department of Clinical Laboratory, Toho University Medical Center Omori Hospital, 6-11-1 Omori-nishi, Ota-ku, Tokyo 143-8541, Japan; Department of Microbiology and Infectious Disease, Toho University Graduate School of Medicine, 5-21-16 Omori-nishi, Ota-ku, Tokyo 143-8540, Japan
| | - Waka Imai
- Department of Clinical Laboratory, Toho University Medical Center Omori Hospital, 6-11-1 Omori-nishi, Ota-ku, Tokyo 143-8541, Japan
| | - Misaki Kato
- Department of Clinical Laboratory, Toho University Medical Center Omori Hospital, 6-11-1 Omori-nishi, Ota-ku, Tokyo 143-8541, Japan
| | - Chikako Maehara
- Department of Clinical Laboratory, Toho University Medical Center Omori Hospital, 6-11-1 Omori-nishi, Ota-ku, Tokyo 143-8541, Japan
| | - Kumiko Yasui
- Department of Clinical Laboratory, Toho University Medical Center Omori Hospital, 6-11-1 Omori-nishi, Ota-ku, Tokyo 143-8541, Japan
| | - Shigeru Fukuzawa
- Department of Clinical Laboratory, Toho University Medical Center Omori Hospital, 6-11-1 Omori-nishi, Ota-ku, Tokyo 143-8541, Japan
| | - Hinako Murakami
- Department of Clinical Laboratory, Toho University Medical Center Omori Hospital, 6-11-1 Omori-nishi, Ota-ku, Tokyo 143-8541, Japan
| | - Koji Kakisu
- Department of Ophthalmology, School of Medicine, Toho University, 6-11-1 Omori-nishi, Ota-ku, Tokyo 143-8541, Japan
| | - Yuichi Hori
- Department of Ophthalmology, School of Medicine, Toho University, 6-11-1 Omori-nishi, Ota-ku, Tokyo 143-8541, Japan
| | - Tatsuya Nagasawa
- Department of Microbiology and Infectious Disease, Toho University Graduate School of Medicine, 5-21-16 Omori-nishi, Ota-ku, Tokyo 143-8540, Japan
| | - Kotaro Aoki
- Department of Microbiology and Infectious Disease, Toho University Graduate School of Medicine, 5-21-16 Omori-nishi, Ota-ku, Tokyo 143-8540, Japan
| | - Tetsuo Yamaguchi
- Department of Microbiology and Infectious Disease, Toho University Graduate School of Medicine, 5-21-16 Omori-nishi, Ota-ku, Tokyo 143-8540, Japan
| | - Yoshikazu Ishii
- Department of Microbiology and Infectious Disease, Toho University Graduate School of Medicine, 5-21-16 Omori-nishi, Ota-ku, Tokyo 143-8540, Japan
| | - Kazuhiro Tateda
- Department of Microbiology and Infectious Disease, Toho University Graduate School of Medicine, 5-21-16 Omori-nishi, Ota-ku, Tokyo 143-8540, Japan
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25
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Söderquist B, Wildeman P, Stenmark B, Stegger M. Staphylococcus argenteus as an etiological agent of prosthetic hip joint infection: a case presentation. J Bone Jt Infect 2020; 5:172-175. [PMID: 32670770 PMCID: PMC7358968 DOI: 10.7150/jbji.44848] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 03/12/2020] [Indexed: 01/03/2023] Open
Abstract
This report presents a case of prosthetic hip infection caused by Staphylococcus argenteus, a potentially overlooked etiology of prosthetic joint infections (PJIs). Whole-genome sequencing showed that the S. argenteus isolate was an ST2250 and clustered within other CC2250 isolates, the largest clonal group of S. argenteus. This sequence type is prevalent and may be associated with invasive infections. The present isolate was phenotypically fully susceptible to all tested antimicrobial agents and genome analysis did not detect any resistance genes, nor were any staphylococcal cassette chromosome residues detected. Despite initial appropriate management with debridement and biofilm-active antibiotics, the outcome was unfavorable with recurrence and a persistent infection treated with suppressive antibiotics. Regarding the repertoire of genomic traits for virulence in S. argenteus, PJIs caused by this bacterium should be treated accordingly as Staphylococcus aureus PJIs.
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Affiliation(s)
- Bo Söderquist
- Department of Laboratory Medicine, Faculty of Medicine and Health, School of Medical Sciences, Örebro University, Örebro, Sweden
| | - Peter Wildeman
- Department of Laboratory Medicine, Faculty of Medicine and Health, School of Medical Sciences, Örebro University, Örebro, Sweden.,Department of Orthopedics, Faculty of Medicine and Health, School of Medical Sciences, Örebro University, Örebro, Sweden
| | - Bianca Stenmark
- Department of Laboratory Medicine, Faculty of Medicine and Health, School of Medical Sciences, Örebro University, Örebro, Sweden
| | - Marc Stegger
- Department of Laboratory Medicine, Faculty of Medicine and Health, School of Medical Sciences, Örebro University, Örebro, Sweden.,Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Copenhagen, Denmark
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26
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Staphylococcus argenteus isolated from retail foods in China: Incidence, antibiotic resistance, biofilm formation and toxin gene profile. Food Microbiol 2020; 91:103531. [PMID: 32539963 DOI: 10.1016/j.fm.2020.103531] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 04/15/2020] [Accepted: 04/22/2020] [Indexed: 01/03/2023]
Abstract
Staphylococcus argenteus is a novel species of coagulase-positive staphylococci which was separated from Staphylococcus aureus in 2014. It can threaten human health like S. aureus but can not identify with conventional biochemical or other phenotypic testing. From 2011 to 2016, 1581 S. aureus strains were isolated from 4300 samples from retail foods covering most provincial capitals in China. According to multilocus sequence typing (MLST) and PCR confirmation, 7.2% of isolates (114/1581) were confirmed as S. argenteus. The pathogen was distributed in 22 of 39 sampled cities and all food types. Interestingly, most S. argenteus positive samples were collected from coastal cities in South China. MLST detected 8 different sequence types (STs), including five new STs. CC2250 was the predominant lineage of S. argenteus, followed by CC1223. To further characterize the isolates, their antibiotic resistance, virulence genes, biofilm formation and biofilm-related genes were examined. The pvl gene was not detected in S. argenteus, and only 1 isolate (0.9%) was positive for the tsst-1 gene. For 18 enterotoxin genes, 16.7% (19/114) of isolates harboured more than three genes, whereas 70.2% (80/114) of isolates had none of the investigated genes. Penicillin and ampicillin were the major antibiotics to which the S. argenteus isolates were resistant, followed by tetracycline, kanamycin and fusidic acid. A total of 94.7% of isolates had the ability to produce biofilms and all isolates harboured icaA, fnbA, and fib genes. Other biofilm-related genes, such as eno, clfB, fnbB, and icaC, were also found in 99.1%, 92.1%, 88.6%, and 74.6% of isolates, respectively. This study is the first systematic investigation of the prevalence of S. argenteus in retail foods in China and shows their ubiquity in food. We also provide comprehensive surveillance of the incidence of S. argenteus in retail foods and information to enable more accurate and effective treatment of infections of this new species.
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27
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Johansson C, Rautelin H, Kaden R. Staphylococcus argenteus and Staphylococcus schweitzeri are cytotoxic to human cells in vitro due to high expression of alpha-hemolysin Hla. Virulence 2020; 10:502-510. [PMID: 31131704 PMCID: PMC6550535 DOI: 10.1080/21505594.2019.1620062] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Staphylococcus argenteus and Staphylococcus schweitzeri are newly identified species of the S. aureus-related complex. S. argenteus, as occurring globally and showing significant prevalence and comparable infection and morbidity rates compared to S. aureus, is becoming clinically important. Whole genome sequencing has revealed the presence of several virulence genes but the molecular mechanisms of S. argenteus infection and virulence are largely unknown. Here, we studied the effect of a previously characterized clinical S. argenteus isolate on human cells in vitro. The clinical isolate, together with the S. argenteus type strain MSHR1132T and the S. schweitzeri type strain FSA084T, had a cytotoxic effect on the cells, which showed necrotic cell death after a few hours of treatment. The protein causing the cytotoxic effect was purified and identified by mass spectrometry as alpha-hemolysin, Hla, which is awell-known pore-forming toxin in S.aureus. The cytotoxic effect could be blocked with an antibody against Hla. S.argenteus showed 12–15 fold higher expression levels of hla at the RNA level and 4–6 fold higher expression levels at the protein level compared to S.aureus. The higher expression levels of hla were supported by higher RNA levels of the regulatory factors sarA and saeR. Also, the RNAIII component of the accessory gene regulator (agr) quorum sensing system was 8,000–10,000 fold higher in the S.argenteus isolates compared to S.aureus. This is the first study on the effect of S.argenteus on ahuman cell line and strengthens the idea of significant virulence of S.argenteus.
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Affiliation(s)
- Cecilia Johansson
- a Clinical Microbiology, Department of Medical Sciences , Uppsala University , Uppsala , Sweden
| | - Hilpi Rautelin
- a Clinical Microbiology, Department of Medical Sciences , Uppsala University , Uppsala , Sweden
| | - René Kaden
- a Clinical Microbiology, Department of Medical Sciences , Uppsala University , Uppsala , Sweden
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28
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Pumipuntu N. Staphylococcus argenteus: An emerging subclinical bovine mastitis pathogen in Thailand. Vet World 2019; 12:1940-1944. [PMID: 32095044 PMCID: PMC6989318 DOI: 10.14202/vetworld.2019.1940-1944] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Accepted: 11/04/2019] [Indexed: 01/11/2023] Open
Abstract
Background and Aim: Staphylococcus argenteus is an emerging species of the Staphylococcus aureus complex. It has usually been misidentified as S. aureus by conventional methods and its characteristics. S. argenteus is potentially emerging in both humans and animals with an increasing global distribution. This study aimed to differentiate and identify S. argenteus from S. aureus collected and isolated from milk samples of subclinical bovine mastitis cases in Maha Sarakham Province, Northeastern Thailand. Materials and Methods: Forty-two isolates of S. aureus were studied from 132 individual milk samples collected from subclinical bovine mastitis cases of 15 dairy farms in three districts of Maha Sarakham, Thailand. The identification was confirmed by conventional and immune-agglutination methods. Fifteen representative isolates which were suspected as being S. argenteus were analyzed by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS). Results: The result from MALDI-TOF MS confirmed that seven from 15 isolates were S. argenteus and eight isolates were S. aureus. Conclusion: This study indicated that MALDI-TOF MS used as an identification and classification method could accurately differentiate the novel species, S. argenteus, from the S. aureus complex which is usually misdiagnosed. In addition, the identification of S. argenteus seems to be very limited in technical difficulty despite the fact that it may be the important causative pathogen in bovine mastitis as well as a pathogenic bacterium in food and milk. Therefore, it is essential for both bovine medicine and veterinary public health to emphasize and recognize this bacterial pathogen as an emerging disease of staphylococcal bacteria that there is a need for further study of S. argenteus infections.
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Affiliation(s)
- Natapol Pumipuntu
- One Health Research Unit, Faculty of Veterinary Sciences, Mahasarakham University, Maha Sarakham, Thailand
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29
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The Whole-Genome Sequence of Plasmid-Bearing Staphylococcus argenteus Strain B3-25B from Retail Beef Liver Encodes the Type VII Secretion System and Several Virulence Factors. Microbiol Resour Announc 2019; 8:8/45/e00962-19. [PMID: 31699758 PMCID: PMC6838616 DOI: 10.1128/mra.00962-19] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
The whole-genome sequence of Staphylococcus argenteus strain B3-25B, isolated from retail beef liver, comprises a circular chromosome (2,676,222 bp) and a single plasmid (21,570 bp). The chromosome harbors genes encoding the type VII secretion system and several virulence factors.
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30
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Aung MS, Urushibara N, Kawaguchiya M, Sumi A, Takahashi S, Ike M, Ito M, Habadera S, Kobayashi N. Molecular Epidemiological Characterization of Staphylococcus a rgenteus Clinical Isolates in Japan: Identification of Three Clones (ST1223, ST2198, and ST2550) and a Novel Staphylocoagulase Genotype XV. Microorganisms 2019; 7:microorganisms7100389. [PMID: 31554314 PMCID: PMC6843175 DOI: 10.3390/microorganisms7100389] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Revised: 09/07/2019] [Accepted: 09/23/2019] [Indexed: 11/25/2022] Open
Abstract
Staphylococcus argenteus, a novel emerging species within Staphylococcus aureus complex (SAC), has been increasingly reported worldwide. In this study, prevalence of S. argenteus among human clinical isolates, and their clonal diversity and genetic characteristics of virulence factors were investigated in Hokkaido, the northern main island of Japan. During a four-month period starting from March 2019, twenty-four S. argenteus and 4330 S. aureus isolates were recovered from clinical specimens (the ratio of S. argenteus to S. aureus :0.0055). Half of S. argenteus isolates (n = 12) belonged to MLST sequence type (ST) 2250 and its single-locus variant, with staphylocoagulase genotype (coa-) XId, while the remaining isolates were assigned to ST2198/coa-XIV (n = 6), and ST1223 with a novel coa-XV identified in this study (n = 6). All the isolates were mecA-negative, and susceptible to all the antimicrobials tested, except for an ST2198 isolate with blaZ and an ST2250 isolate with tet(L) showing resistance to ampicillin and tetracyclines, respectively. Common virulence factors in the S. argenteus isolates were staphylococcal enterotoxin (-like) genes sey, selz, sel26, and sel27 in ST2250, selx in ST2198, and enterotoxin gene cluster (egc-1: seg-sei-sem-sen-seo) in ST1223 isolates, in addition to hemolysin genes (hla, hlb, and hld) distributed universally. Elastin binding protein gene (ebpS) and MSCRAMM family adhesin SdrE gene (sdrE) detected in all the isolates showed high sequence identity among them (> 97%), while relatively lower identity to those of S. aureus (78–92%). Phylogenetically, ebpS, sdrE, selx, sey, selw, sel26, and sel27 of S. argenteus formed clusters distinct from those of S. aureus, unlike sec, selz, tst-1, and staphylokinase gene (sak). The present study revealed the prevalence of S. argenteus among clinical isolates, and presence of three distinct S. argenteus clones (ST2250; ST2198 and ST1223) harboring different virulence factors in northern Japan. ST2198 S. argenteus, a minor clone (strain BN75-like) that had been rarely reported, was first identified in Japan as human isolates.
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Affiliation(s)
- Meiji Soe Aung
- Department of Hygiene, Sapporo Medical University School of Medicine, Hokkaido, 060-8556 Sapporo, Japan.
| | - Noriko Urushibara
- Department of Hygiene, Sapporo Medical University School of Medicine, Hokkaido, 060-8556 Sapporo, Japan.
| | - Mitsuyo Kawaguchiya
- Department of Hygiene, Sapporo Medical University School of Medicine, Hokkaido, 060-8556 Sapporo, Japan.
| | - Ayako Sumi
- Department of Hygiene, Sapporo Medical University School of Medicine, Hokkaido, 060-8556 Sapporo, Japan.
| | - Seika Takahashi
- Sapporo Clinical Laboratory, Inc., Hokkaido, 060-0005 Sapporo, Japan.
| | - Miyo Ike
- Sapporo Clinical Laboratory, Inc., Hokkaido, 060-0005 Sapporo, Japan.
| | - Masahiko Ito
- Sapporo Clinical Laboratory, Inc., Hokkaido, 060-0005 Sapporo, Japan.
| | - Satoshi Habadera
- Sapporo Clinical Laboratory, Inc., Hokkaido, 060-0005 Sapporo, Japan.
| | - Nobumichi Kobayashi
- Department of Hygiene, Sapporo Medical University School of Medicine, Hokkaido, 060-8556 Sapporo, Japan.
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Becker K, Schaumburg F, Kearns A, Larsen AR, Lindsay JA, Skov RL, Westh H. Implications of identifying the recently defined members of the Staphylococcus aureus complex S. argenteus and S. schweitzeri: a position paper of members of the ESCMID Study Group for Staphylococci and Staphylococcal Diseases (ESGS). Clin Microbiol Infect 2019; 25:1064-1070. [PMID: 30872103 DOI: 10.1016/j.cmi.2019.02.028] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Revised: 02/18/2019] [Accepted: 02/21/2019] [Indexed: 11/30/2022]
Abstract
BACKGROUND Staphylococcus argenteus and Staphylococcus schweitzeri, previously known as divergent Staphylococcus aureus clonal lineages, have been recently established as novel, difficult-to-delimit, coagulase-positive species within the S. aureus complex. Methicillin-resistant strains of S. argenteus are known from Australia and the UK. Knowledge of their epidemiology, medical significance and transmission risk is limited and partly contradictory, hampering definitive recommendations. There is mounting evidence that the pathogenicity of S. argenteus is similar to that of 'classical' S. aureus, while as yet no S. schweitzeri infections have been reported. AIM To provide decision support on whether and how to distinguish and report both species. SOURCES PubMed, searched for S. argenteus and S. schweitzeri. CONTENT This position paper reviews the main characteristics of both species and draws conclusions for microbiological diagnostics and surveillance as well as infection prevention and control measures. IMPLICATIONS We propose not distinguishing within the S. aureus complex for routine reporting purposes until there is evidence that pathogenicity or clinical outcome differ markedly between the different species. Primarily for research purposes, suitably equipped laboratories are encouraged to differentiate between S. argenteus and S. schweitzeri. Caution is urged if these novel species are explicitly reported. In such cases, a specific comment should be added (i.e. 'member of the S.aureus complex') to prevent confusion with less- or non-pathogenic staphylococci. Prioritizing aspects of patient safety, methicillin-resistant isolates should be handled as recommended for methicillin-resistant Staphylococcus aureus (MRSA). In these cases, the clinician responsible should be directly contacted and informed by the diagnosing microbiological laboratory, as they would be for MRSA. Research is warranted to clarify the epidemiology, clinical impact and implications for infection control of such isolates.
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Affiliation(s)
- K Becker
- Institute of Medical Microbiology, University Hospital Münster, Münster, Germany.
| | - F Schaumburg
- Institute of Medical Microbiology, University Hospital Münster, Münster, Germany
| | - A Kearns
- HCAI and AMR Division, National Infection Service, Public Health England, London, UK
| | - A R Larsen
- National Center for Antimicrobial and Infection Control, Statens Serum Institut, Copenhagen, Denmark
| | - J A Lindsay
- Institute of Infection and Immunity, St George's, University of London, UK
| | - R L Skov
- Infectious Disease Preparedness, Statens Serum Institut, Copenhagen, Denmark
| | - H Westh
- Department of Clinical Microbiology, Hvidovre Hospital, University of Copenhagen, Denmark
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Guo Z, Chen Z, Liu X, Chen J, Chen G, Liu Z, Yang G, Lan Q. Detection of Listeria monocytogenesand Staphylococcus aureus viaduplex recombinase polymerase amplification. J Food Saf 2019. [DOI: 10.1111/jfs.12628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhengyang Guo
- Food Inspection InstituteShenzhen Academy of Metrology & Quality Inspection Shenzhen China
- School of Food Science and TechnologyHenan University of Technology Zhengzhou China
| | - Zhaobin Chen
- West China School of Public HealthSichuan University Chengdu China
- Microbiological Clinical LaboratoryShenzhen Nanshan Center for Disease Control and Prevention Shenzhen China
| | - Xiaoqing Liu
- Food Inspection InstituteShenzhen Academy of Metrology & Quality Inspection Shenzhen China
| | - Jing Chen
- Food Inspection InstituteShenzhen Academy of Metrology & Quality Inspection Shenzhen China
| | - Guopei Chen
- Food Inspection InstituteShenzhen Academy of Metrology & Quality Inspection Shenzhen China
| | - Zhongdong Liu
- School of Food Science and TechnologyHenan University of Technology Zhengzhou China
| | - Guowu Yang
- Food Inspection InstituteShenzhen Academy of Metrology & Quality Inspection Shenzhen China
| | - Quanxue Lan
- Food Inspection InstituteShenzhen Academy of Metrology & Quality Inspection Shenzhen China
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Kitagawa H, Ohge H, Hisatsune J, Masuda K, Aziz F, Hara T, Kuroo Y, Sugai M. Low incidence of Staphylococcus argenteus bacteremia in Hiroshima, Japan. J Infect Chemother 2019; 26:140-143. [PMID: 31377128 DOI: 10.1016/j.jiac.2019.07.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Revised: 06/10/2019] [Accepted: 07/11/2019] [Indexed: 11/19/2022]
Abstract
Staphylococcus argenteus is a globally distributed cause of human infection; however, it has been misidentified as Staphylococcus aureus in diagnostic laboratories. Invasive infection caused by S. argenteus has been increasingly reported worldwide. However, there have been no reports on S. argenteus bacteremia in Japan. Therefore, we conducted a retrospective study to investigate the incidence of S. argenteus bacteremia at Hiroshima University Hospital between 2013 and 2017. S. argenteus was identified based on the absence of the crtM gene and multi-locus sequence typing. S. argenteus was identified in 2 of the 201 S. aureus blood culture isolates (1.0%). Both S. argenteus isolates belonged to sequence type 2250 harboring the staphylococcal enterotoxin Y gene (sey) and were susceptible to methicillin. One of them was penicillin-resistant, harboring a blaZ gene. The primary sites of infection were lower leg cellulitis and catheter-related blood stream infection. No patients died during hospitalization. This study suggested a low incidence of S. argenteus bacteremia in Japan when compared with reports from other countries. Further studies are necessary to investigate the prevalence of S. argenteus infection in Japan and the clinical impact of S. argenteus compared to S. aureus.
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Affiliation(s)
- Hiroki Kitagawa
- Project Research Center for Nosocomial Infectious Diseases, Hiroshima University, Hiroshima 734-8551, Japan; Department of Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima 734-8551, Japan.
| | - Hiroki Ohge
- Project Research Center for Nosocomial Infectious Diseases, Hiroshima University, Hiroshima 734-8551, Japan; Department of Infectious Diseases, Hiroshima University Hospital, Hiroshima 734-8551, Japan
| | - Junzo Hisatsune
- Project Research Center for Nosocomial Infectious Diseases, Hiroshima University, Hiroshima 734-8551, Japan; Antimicrobial Resistance Research Center, National Institute of Infectious Diseases, Tokyo 189-0002, Japan; Department of Antimicrobial Resistance, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima 734-8551, Japan
| | - Kanako Masuda
- Project Research Center for Nosocomial Infectious Diseases, Hiroshima University, Hiroshima 734-8551, Japan; Department of Bacteriology, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8551, Japan
| | - Fatkhanuddin Aziz
- Project Research Center for Nosocomial Infectious Diseases, Hiroshima University, Hiroshima 734-8551, Japan; Department of Bacteriology, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8551, Japan
| | - Toshinori Hara
- Project Research Center for Nosocomial Infectious Diseases, Hiroshima University, Hiroshima 734-8551, Japan; Department of Bacteriology, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8551, Japan; Section of Infection Diseases Laboratory, Department of Clinical Support, Hiroshima University Hospital, Hiroshima 734-8551, Japan
| | - Yuta Kuroo
- Project Research Center for Nosocomial Infectious Diseases, Hiroshima University, Hiroshima 734-8551, Japan; Department of Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima 734-8551, Japan
| | - Motoyuki Sugai
- Project Research Center for Nosocomial Infectious Diseases, Hiroshima University, Hiroshima 734-8551, Japan; Antimicrobial Resistance Research Center, National Institute of Infectious Diseases, Tokyo 189-0002, Japan; Department of Antimicrobial Resistance, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima 734-8551, Japan
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Indrawattana N, Pumipuntu N, Suriyakhun N, Jangsangthong A, Kulpeanprasit S, Chantratita N, Sookrung N, Chaicumpa W, Buranasinsup S. Staphylococcus argenteus from rabbits in Thailand. Microbiologyopen 2019; 8:e00665. [PMID: 29931813 PMCID: PMC6460352 DOI: 10.1002/mbo3.665] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 05/03/2018] [Accepted: 05/03/2018] [Indexed: 11/11/2022] Open
Abstract
Staphylococcus argenteus, a novel species of the genus Staphylococcus or a member of the S. aureus complex, is closely related to S. aureus and is usually misidentified. In this study, the presence of S. argenteus in isolated S. aureus was investigated in 67 rabbits with abscess lesions during 2014-2016. Among 19 S. aureus complex isolates, three were confirmed to be S. argenteus by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry, nonribosomal peptide synthetase gene amplification, and multilocus sequence type. All S. aureus complex isolates, including the S. aureus isolates, were examined for their antimicrobial resistance phenotype by disk diffusion and for their resistance genotype by PCR assays. Among the S. argenteus isolates, one was susceptible to all antimicrobial drugs and the other two were resistant to penicillin and doxycycline. In contrast, most S. aureus isolates were resistant to penicillin (37.5%), and gentamicin (12.5%). Moreover, S. aureus isolates harbored the blaZ, mecA, aacA-aphD, and mrs(A) as well as mutations of gyrA and grlA, but S. argenteus isolates carried solely the blaZ. S. argenteus isolates were investigated for enterotoxin (sea-sed) and virulence genes by PCR. One isolate carried sea, sec, and sed, whereas the other two isolates carried only sea or sed. No isolate carried seb and see. All three S. argenteus isolates carried hla, hlb, and clfA, followed by pvl, whereas coa, spa (IgG-binding region), and spa (x region) were not detected in the three isolates. This paper presents the first identification of S. argenteus from rabbits in Thailand. S. argenteus might be pathogenic because the isolates carried virulence genes. Moreover, antimicrobial resistance was observed. Investigations of this new bacterial species should be conducted in other animal species as well as in humans.
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Affiliation(s)
- Nitaya Indrawattana
- Department of Microbiology and ImmunologyFaculty of Tropical MedicineMahidol UniversityBangkokThailand
| | - Natapol Pumipuntu
- Office of Academic AffairsFaculty of Veterinary SciencesMahasarakham UniversityMaha SarakhamThailand
| | - Nawarat Suriyakhun
- Prasu‐Arthorn Animal HospitalFaculty of Veterinary ScienceMahidol UniversityNakhon PathomThailand
| | - Arunee Jangsangthong
- Department of Pre‐Clinic and Applied Animal ScienceFaculty of Veterinary ScienceMahidol UniversityNakornpathomThailand
| | - Suphang Kulpeanprasit
- Department of Microbiology and ImmunologyFaculty of Tropical MedicineMahidol UniversityBangkokThailand
| | - Narisara Chantratita
- Department of Microbiology and ImmunologyFaculty of Tropical MedicineMahidol UniversityBangkokThailand
| | - Nitat Sookrung
- Laboratory for Research and Technology DevelopmentFaculty of MedicineSiriraj HospitalMahidol UniversityBangkokThailand
| | - Wanpen Chaicumpa
- Center of Excellence on Therapeutic Proteins and Antibody EngineeringDepartment of ParasitologyFaculty of MedicineSiriraj HospitalMahidol UniversityBangkokThailand
| | - Shutipen Buranasinsup
- Department of Pre‐Clinic and Applied Animal ScienceFaculty of Veterinary ScienceMahidol UniversityNakornpathomThailand
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Pumipuntu N, Tunyong W, Chantratita N, Diraphat P, Pumirat P, Sookrung N, Chaicumpa W, Indrawattana N. Staphylococcus spp. associated with subclinical bovine mastitis in central and northeast provinces of Thailand. PeerJ 2019; 7:e6587. [PMID: 30886776 PMCID: PMC6421060 DOI: 10.7717/peerj.6587] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Accepted: 02/10/2019] [Indexed: 12/15/2022] Open
Abstract
Background Staphylococcus spp. are major cause of bovine mastitis (BM) worldwide leading to economic damage to dairy farms and public health threat. Recently, a newly emerged Staphylococcus argenteus has been found as a human and animal pathogen. Molecular characteristics, virulence and antibiotic resistant phenotypes of bacteria causing BM in Thailand are rare. This study aimed to investigated Staphylococcus spp. associated with subclinical bovine mastitis (SCM) in Thailand. Methods Milk samples were collected from 224 cows of 52 dairy herds in four central and northeast provinces. Total somatic cell counts (SCC) and California mastitis test (CMT) were used to identify SCM cows. Milk samples were cultured for Staphylococcus spp. Coagulase-positive isolates were subjected to pulsed-field gel electrophoresis (PFGE) and multilocus sequence typing (MLST). Organisms suspected as S. argenteus were verified by detecting nonribosomal peptide synthetase gene. All isolates were checked for antibiograms and the presence of various virulence genes. Results From the 224 milk samples of 224 cows, 132 (59%) were positive for SCM by SCC and CMT and 229 staphylococcal isolates were recovered. They were 32 coagulase-positive (24 S. aureus and eight S. argenteus) and 197 coagulase-negative. PFGE of the S. aureus and S. argenteus revealed 11 clusters and a non-typeable pattern. MLST of representatives of the 11 PFGE clusters, three PFGE non-typeable S. aureus isolates from different locations and S. argenteus showed 12 sequence types. The eight S. argenteus isolates belonged to ST1223 (three isolates), ST2250 (two isolates), and ST2793 (two isolates). The antimicrobial tests identified 11 (46%) methicillin-resistant S. aureus and 25 (13%) methicillin-resistant coagulase-negative isolates, while seven S. argenteus were methicillin-susceptible and one isolate was methicillin-resistant. All of the 229 isolates were multiply resistant to other antibiotics. The most prevalent virulence genes of the 24 S. aureus isolates were clfA, coa and spa (X and IgG-binding region) (100%), hla (96%), pvl (96%) and sec (79%). Six S. argenteus isolates carried one enterotoxin gene each and other virulence genes including coa, clfA, hla/hlb, spa, tsst and pvl, indicating their pathogenic potential. Conclusion and perspective This is the first report on the S. argenteus from cow milk samples with SCM. Data on the molecular characteristics, virulence genes and antibiograms of the Staphylococcus spp. obtained from the present study showed a wide spread and increasing trend of methicillin-resistance and multiple resistance to other antibiotics. This suggests that the "One Health" practice should be nurtured, not only at the dairy farm level, but also at the national or even the international levels through cooperation of different sectors (dairy farmers, veterinarians, medical and public health personnel and scientists) in order to effectively combat and control the spread of these pathogens.
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Affiliation(s)
- Natapol Pumipuntu
- Department of Microbiology and Immunology/Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand.,One Health Research Unit/Faculty of Veterinary Sciences, Maha Sarakham University, Maha Sarakham, Thailand
| | - Witawat Tunyong
- Department of Microbiology and Immunology/Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Narisara Chantratita
- Department of Microbiology and Immunology/Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand.,Mahidol-Oxford Tropical Medicine Research Unit/Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Pornphan Diraphat
- Department of Microbiology/Faculty of Public Health, Mahidol University, Bangkok, Thailand
| | - Pornpan Pumirat
- Department of Microbiology and Immunology/Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Nitat Sookrung
- Biomedical Research Incubator Unit/Department of Research/Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Wanpen Chaicumpa
- Center of Excellence on Therapeutic Proteins and Antibody Engineering/Department of Parasitology/Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Nitaya Indrawattana
- Department of Microbiology and Immunology/Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
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36
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Li Q, Li Y, Tang Y, Meng C, Ingmer H, Jiao X. Prevalence and characterization of Staphylococcus aureus and Staphylococcus argenteus in chicken from retail markets in China. Food Control 2019. [DOI: 10.1016/j.foodcont.2018.08.030] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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37
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Aung MS, San T, San N, Oo WM, Ko PM, Thet KT, Urushibara N, Kawaguchiya M, Sumi A, Kobayashi N. Molecular characterization of Staphylococcus argenteus in Myanmar: identification of novel genotypes/clusters in staphylocoagulase, protein A, alpha-haemolysin and other virulence factors. J Med Microbiol 2019; 68:95-104. [DOI: 10.1099/jmm.0.000869] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Affiliation(s)
- Meiji Soe Aung
- 1Department of Hygiene, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Thida San
- 2Yangon Children’s Hospital, Yangon, Myanmar
| | - Nilar San
- 3Department of Microbiology, University of Medicine 2, Yangon, Myanmar
| | | | | | | | - Noriko Urushibara
- 1Department of Hygiene, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Mitsuyo Kawaguchiya
- 1Department of Hygiene, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Ayako Sumi
- 1Department of Hygiene, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Nobumichi Kobayashi
- 1Department of Hygiene, Sapporo Medical University School of Medicine, Sapporo, Japan
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Chen SY, Lee H, Wang XM, Lee TF, Liao CH, Teng LJ, Hsueh PR. High mortality impact of Staphylococcus argenteus on patients with community-onset staphylococcal bacteraemia. Int J Antimicrob Agents 2018; 52:747-753. [DOI: 10.1016/j.ijantimicag.2018.08.017] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Revised: 08/15/2018] [Accepted: 08/18/2018] [Indexed: 01/16/2023]
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Kaden R, Engstrand L, Rautelin H, Johansson C. Which methods are appropriate for the detection of Staphylococcus argenteus and is it worthwhile to distinguish S. argenteus from S. aureus? Infect Drug Resist 2018; 11:2335-2344. [PMID: 30538503 PMCID: PMC6254542 DOI: 10.2147/idr.s179390] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Purpose To further analyze a clinical isolate originally identified as methicillin-resistant Staphylococcus aureus (MRSA) using whole-genome sequencing and comparative genomics. Materials and methods Classical diagnostic methods such as cultivation, biochemical tests, and PCR were supplemented with whole-genome sequencing and comparative genomics, to identify the isolate. Results The isolate was phenotypically similar to MRSA. However, the presence of the nuc gene could not be confirmed using PCR, while it was positive for the mecA gene. Whole-genome sequencing correctly identified the isolate as Staphylococcus argenteus. The isolate possessed several resistance genes, such as mecA, blaZ (β-lactam antibiotics) and dfrG (trimethoprim). The nuc gene differed from that of MRSA. Six phylogenetic distinct clusters were identified by average nucleotide identity (ANI) analysis of all available S. argenteus whole-genome sequences. Our isolate, RK308, clustered with those isolated in Europe and Asia. Conclusion Due to the invasive potential, the multi-drug resistance and the similarity to MRSA, S. argenteus should be included in the MRSA screening. Due to the divergent genome compared to MRSA, new PCR approaches have to be developed to avoid an unnoticed spreading of S. argenteus.
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Affiliation(s)
- René Kaden
- Department of Medical Sciences, Clinical Microbiology, Uppsala University, Uppsala, Sweden,
| | - Lars Engstrand
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institute, Solna, Sweden
| | - Hilpi Rautelin
- Department of Medical Sciences, Clinical Microbiology, Uppsala University, Uppsala, Sweden,
| | - Cecilia Johansson
- Department of Medical Sciences, Clinical Microbiology, Uppsala University, Uppsala, Sweden,
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Wang HY, Lien F, Liu TP, Chen CH, Chen CJ, Lu JJ. Application of a MALDI-TOF analysis platform (ClinProTools) for rapid and preliminary report of MRSA sequence types in Taiwan. PeerJ 2018; 6:e5784. [PMID: 30425884 PMCID: PMC6228551 DOI: 10.7717/peerj.5784] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Accepted: 09/19/2018] [Indexed: 12/20/2022] Open
Abstract
Background The accurate and rapid preliminarily identification of the types of methicillin-resistant Staphylococcus aureus (MRSA) is crucial for infection control. Currently, however, expensive, time-consuming, and labor-intensive methods are used for MRSA typing. By contrast, matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF MS) is a potential tool for preliminary lineage typing. The approach has not been standardized, and its performance has not been analyzed in some regions with geographic barriers (e.g., Taiwan Island). Methods The mass spectra of 306 MRSA isolates were obtained from multiple reference hospitals in Taiwan. The multilocus sequence types (MLST) of the isolates were determined. The spectra were analyzed for the selection of characteristic peaks by using the ClinProTools software. Furthermore, various machine learning (ML) algorithms were used to generate binary and multiclass models for classifying the major MLST types (ST5, ST59, and ST239) of MRSA. Results A total of 10 peaks with the highest discriminatory power (m/z range: 2,082–6,594) were identified and evaluated. All the single peaks revealed significant discriminatory power during MLST typing. Moreover, the binary and multiclass ML models achieved sufficient accuracy (82.80–94.40% for binary models and >81.00% for multiclass models) in classifying the major MLST types. Conclusions A combination of MALDI-TOF MS analysis and ML models is a potentially accurate, objective, and efficient tool for infection control and outbreak investigation.
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Affiliation(s)
- Hsin-Yao Wang
- Department of Laboratory Medicine, Chang Gung Memorial Hospital at Linkou, Tauyuan, Taiwan.,Ph.D. Program in Biomedical Engineering, Chang Gung University, Taoyuan, Taiwan
| | - Frank Lien
- Department of Laboratory Medicine, Chang Gung Memorial Hospital at Linkou, Tauyuan, Taiwan
| | - Tsui-Ping Liu
- Department of Laboratory Medicine, Chang Gung Memorial Hospital at Linkou, Tauyuan, Taiwan
| | - Chun-Hsien Chen
- Department of Information Management, Chang Gung University, Taoyuan, Taiwan
| | - Chao-Jung Chen
- Graduate Institute of Integrated Medicine, China Medical University, Taichung, Taiwan.,Proteomics Core Laboratory, China Medical University Hospital, Taichung, Taiwan
| | - Jang-Jih Lu
- Department of Laboratory Medicine, Chang Gung Memorial Hospital at Linkou, Tauyuan, Taiwan.,Department of Medical Biotechnology and Laboratory Science, Chang Gung University, Taoyuan, Taiwan.,School of Medicine, Chang Gung University, Taoyuan, Taiwan
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Rigaill J, Grattard F, Grange S, Forest F, Haddad E, Carricajo A, Tristan A, Laurent F, Botelho-Nevers E, Verhoeven PO. Community-Acquired Staphylococcus argenteus Sequence Type 2250 Bone and Joint Infection, France, 2017. Emerg Infect Dis 2018; 24:1958-1961. [PMID: 30226182 PMCID: PMC6154148 DOI: 10.3201/eid2410.180727] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
We report a rare case of Staphylococcus argenteus bone and joint infection in a 9-year-old boy in France. His finger arthritis was complicated by osteitis 5 weeks later, which resulted in a secondary intervention. This case indicates the virulence of S. argenteus, an emerging pathogen whose clinical effects are poorly described.
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Ssepuuya G, Wynants E, Verreth C, Crauwels S, Lievens B, Claes J, Nakimbugwe D, Van Campenhout L. Microbial characterisation of the edible grasshopper Ruspolia differens in raw condition after wild-harvesting in Uganda. Food Microbiol 2018; 77:106-117. [PMID: 30297041 DOI: 10.1016/j.fm.2018.09.005] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2018] [Revised: 09/03/2018] [Accepted: 09/05/2018] [Indexed: 01/01/2023]
Abstract
This research aimed at establishing the chemical intrinsic properties and the microbial quality of an edible grasshopper Ruspolia differens and the effect of its source (geographical area) in Uganda, trading point, swarming season and plucking on these parameters. The intrinsic properties of the grasshopper can support the growth of a wide variety of microorganisms. High counts of total aerobic microbes, Enterobacteriaceae, lactic acid bacteria, total aerobic spores, and yeasts and moulds were obtained. Metagenetic analyses yielded 1793 Operational Taxonomic Units (OTUs) belonging to 24 phyla. Actinobacteria, Bacteroidetes, Firmicutes, Fusobacteria and Proteobacteria were the most abundant phyla, while members of the genera Acinetobacter, Buttiauxella, Lactococcus, Staphylococcus and Undibacterium were the most abundant OTUs. A number of genera harbouring potential pathogens (Acinetobacter, Bacillus, Buttiauxella, Campylobacter, Clostridium, Staphylococcus, Pseudomonas and Neisseria) were identified. The geographical area, trading point, swarming season and plucking significantly influenced microbial counts and bacterial diversity. The high microbial counts predispose R. differens to fast microbial spoilage, while the presence of Clostridium and Campylobacter makes this grasshopper a potential source of food borne diseases. Further research should identify the specific spoilage microorganisms of R. differens and assess the characteristics of this grasshopper that support growth of food pathogens.
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Affiliation(s)
- Geoffrey Ssepuuya
- KU Leuven, Department of Microbial and Molecular Systems (M2S), Lab4Food, Technology Campus Geel, Kleinhoefstraat 4, B-2440, Geel, Belgium; KU Leuven, Leuven Food Science and Nutrition Research Centre (LFoRCe), Leuven, Belgium; Makerere University, Department of Food Technology and Nutrition, CAES, P. O. Box, 7062, Kampala, Uganda
| | - Enya Wynants
- KU Leuven, Department of Microbial and Molecular Systems (M2S), Lab4Food, Technology Campus Geel, Kleinhoefstraat 4, B-2440, Geel, Belgium; KU Leuven, Leuven Food Science and Nutrition Research Centre (LFoRCe), Leuven, Belgium
| | - Christel Verreth
- KU Leuven, Leuven Food Science and Nutrition Research Centre (LFoRCe), Leuven, Belgium; KU Leuven, Department of Microbial and Molecular Systems (M2S), Laboratory for Process Microbial Ecology and Bioinspirational Management (PME & BIM), Campus De Nayer, B-2860, Sint-Katelijne-Waver, Belgium
| | - Sam Crauwels
- KU Leuven, Leuven Food Science and Nutrition Research Centre (LFoRCe), Leuven, Belgium; KU Leuven, Department of Microbial and Molecular Systems (M2S), Laboratory for Process Microbial Ecology and Bioinspirational Management (PME & BIM), Campus De Nayer, B-2860, Sint-Katelijne-Waver, Belgium
| | - Bart Lievens
- KU Leuven, Leuven Food Science and Nutrition Research Centre (LFoRCe), Leuven, Belgium; KU Leuven, Department of Microbial and Molecular Systems (M2S), Laboratory for Process Microbial Ecology and Bioinspirational Management (PME & BIM), Campus De Nayer, B-2860, Sint-Katelijne-Waver, Belgium
| | - Johan Claes
- KU Leuven, Department of Microbial and Molecular Systems (M2S), Lab4Food, Technology Campus Geel, Kleinhoefstraat 4, B-2440, Geel, Belgium; KU Leuven, Leuven Food Science and Nutrition Research Centre (LFoRCe), Leuven, Belgium
| | - Dorothy Nakimbugwe
- Makerere University, Department of Food Technology and Nutrition, CAES, P. O. Box, 7062, Kampala, Uganda
| | - Leen Van Campenhout
- KU Leuven, Department of Microbial and Molecular Systems (M2S), Lab4Food, Technology Campus Geel, Kleinhoefstraat 4, B-2440, Geel, Belgium; KU Leuven, Leuven Food Science and Nutrition Research Centre (LFoRCe), Leuven, Belgium.
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Richardson EJ, Bacigalupe R, Harrison EM, Weinert LA, Lycett S, Vrieling M, Robb K, Hoskisson PA, Holden MTG, Feil EJ, Paterson GK, Tong SYC, Shittu A, van Wamel W, Aanensen DM, Parkhill J, Peacock SJ, Corander J, Holmes M, Fitzgerald JR. Gene exchange drives the ecological success of a multi-host bacterial pathogen. Nat Ecol Evol 2018; 2:1468-1478. [PMID: 30038246 PMCID: PMC7610605 DOI: 10.1038/s41559-018-0617-0] [Citation(s) in RCA: 129] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Accepted: 06/25/2018] [Indexed: 01/15/2023]
Abstract
The capacity for some pathogens to jump into different host-species populations is a major threat to public health and food security. Staphylococcus aureus is a multi-host bacterial pathogen responsible for important human and livestock diseases. Here, using a population-genomic approach, we identify humans as a major hub for ancient and recent S. aureus host-switching events linked to the emergence of endemic livestock strains, and cows as the main animal reservoir for the emergence of human epidemic clones. Such host-species transitions are associated with horizontal acquisition of genetic elements from host-specific gene pools conferring traits required for survival in the new host-niche. Importantly, genes associated with antimicrobial resistance are unevenly distributed among human and animal hosts, reflecting distinct antibiotic usage practices in medicine and agriculture. In addition to gene acquisition, genetic diversification has occurred in pathways associated with nutrient acquisition, implying metabolic remodelling after a host switch in response to distinct nutrient availability. For example, S. aureus from dairy cattle exhibit enhanced utilization of lactose-a major source of carbohydrate in bovine milk. Overall, our findings highlight the influence of human activities on the multi-host ecology of a major bacterial pathogen, underpinned by horizontal gene transfer and core genome diversification.
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Affiliation(s)
- Emily J Richardson
- The Roslin Institute, Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, UK.,Institute of Microbiology and Infection, University of Birmingham, Birmingham, UK
| | - Rodrigo Bacigalupe
- The Roslin Institute, Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, UK
| | - Ewan M Harrison
- Department of Medicine, University of Cambridge, Cambridge, UK
| | - Lucy A Weinert
- Department of Veterinary Medicine, University of Cambridge, Cambridge, UK
| | - Samantha Lycett
- The Roslin Institute, Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, UK
| | - Manouk Vrieling
- The Roslin Institute, Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, UK
| | | | | | | | - Edward J Feil
- Milner Centre for Evolution, University of Bath, Bath, UK
| | - Gavin K Paterson
- Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, UK
| | - Steven Y C Tong
- Victorian Infectious Disease Service, The Royal Melbourne Hospital and The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Australia.,Menzies School of Health Research, Darwin, Australia
| | - Adebayo Shittu
- Department of Microbiology, Obafemi Awolowo University, Ile-Ife, Nigeria
| | - Willem van Wamel
- Department of Medical Microbiology and Infectious Diseases, Erasmus MC, Rotterdam, The Netherlands
| | - David M Aanensen
- Centre for Genomic Pathogen Surveillance, Hinxton, UK.,Department of Infectious Disease Epidemiology, Imperial College London, London, UK
| | | | | | - Jukka Corander
- Wellcome Trust Sanger Institute, Hinxton, UK.,Helsinki Institute for Information Technology, Department of Mathematics and Statistics, University of Helsinki, Helsinki, Finland.,Department of Biostatistics, University of Oslo, Oslo, Norway
| | - Mark Holmes
- Department of Veterinary Medicine, University of Cambridge, Cambridge, UK
| | - J Ross Fitzgerald
- The Roslin Institute, Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, UK.
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Chen SY, Lee H, Teng SH, Wang XM, Lee TF, Huang YC, Liao CH, Teng LJ, Hsueh PR. Accurate differentiation of novel Staphylococcus argenteus from Staphylococcus aureus using MALDI-TOF MS. Future Microbiol 2018; 13:997-1006. [DOI: 10.2217/fmb-2018-0015] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: We evaluated a Staphylococcus argenteus-specific diagnostic profile of matrix-assisted laser desorption/ionization time-of-flight mass spectrometer for accurate identification of this novel bacterium. Materials & methods: Staphylococcus argenteus was identified based on negative crtM gene and presence of specific sequence types. A classification model was generated by cluster analysis of matrix-assisted laser desorption/ionization time-of-flight mass spectrometer results and ClinProTools software for 25 S. argenteus and 25 methicillin-susceptible S. aureus (MSSA). The performance of the classification model was validated against 72 S. argenteus and 72 MSSA isolates. Results: With cluster analysis and classification model, differentiation of 72 S. argenteus from 72 MSSA had 100.0% accuracy by chemical extraction method and 87.5% sensitivity and 100.0% specificity by direct smear method. Conclusion: The classification model could accurately differentiate S. argenteus from MSSA.
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Affiliation(s)
- Shey-Ying Chen
- Department of Emergency Medicine, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Hao Lee
- Department of Laboratory Medicine, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan
| | | | - Xiao-Mei Wang
- Department of Medical Genetics, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Tai-Fen Lee
- Department of Laboratory Medicine, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Yu-Chung Huang
- Department of Laboratory Medicine, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan
- Department of Internal Medicine, Far Eastern Memorial Hospital, New Taipei City, Taiwan
| | - Chun-Hsing Liao
- Department of Internal Medicine, Far Eastern Memorial Hospital, New Taipei City, Taiwan
| | - Lee-Jene Teng
- Department of Laboratory Medicine, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan
- Department of Medical Genetics, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Po-Ren Hsueh
- Department of Laboratory Medicine, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan
- Department of Internal Medicine, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan
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Jiang B, You B, Tan L, Yu S, Li H, Bai G, Li S, Rao X, Xie Z, Shi X, Peng Y, Hu X. Clinical Staphylococcus argenteus Develops to Small Colony Variants to Promote Persistent Infection. Front Microbiol 2018; 9:1347. [PMID: 30013523 PMCID: PMC6036243 DOI: 10.3389/fmicb.2018.01347] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2018] [Accepted: 06/01/2018] [Indexed: 11/25/2022] Open
Abstract
Staphylococcus argenteus is a novel staphylococcal species (also considered as a part of Staphylococcus aureus complex) that is infrequently reported on, and clinical S. argenteus infections are largely unstudied. Here, we report a persistent and recurrent hip joint infection case in which a S. argenteus strain and its small colony variants (SCVs) strain were successively isolated. We present features of the two S. argenteus strains and case details of their pathogenicity, explore factors that induce S. argenteus SCVs formation in the course of anti-infection therapy, and reveal potential genetic mechanisms for S. argenteus SCVs formation. S. argenteus strains were identified using phenotypic and genotypic methods. The S. argenteus strain XNO62 and SCV strain XNO106 were characterized using different models. S. argenteus SCVs were induced by the administration of amikacin and by chronic infection course based on the clinical case details. The genomes of both strains were sequenced and aligned in a pair-wise fashion using Mauve. The case details gave us important insights on the characteristics and therapeutic strategies for infections caused by S. argenteus and its SCVs. We found that strain XNO62 and SCV strain XNO106 are genetically-related sequential clones, the SCV strain exhibits reduced virulence but enhanced intracellular persistence compared to strain XNO62, thus promoting persistent infection. The induction experiments for S. argenteus SCVs demonstrated that high concentrations of amikacin greatly induce S. argenteus XNO62 to form SCVs, while a chronic infection of S. argenteus XNO62 slightly induces SCVs formation. Potential genetic mechanisms for S. argenteus SCVs formation were revealed and discussed based on genomic alignments. In conclusion, we report the first case of infection caused by S. argenteus and its SCVs strain. More attention should be paid to infections caused by S. argenteus and its SCVs, as they constitute a challenge to current therapeutic strategies. The problem of S. argenteus SCVs should be noticed, in particular when amikacin is used or in the case of a chronic S. argenteus infection.
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Affiliation(s)
- Bei Jiang
- Institute of Burn Research, State Key Laboratory of Trauma, Burns and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Bo You
- Department of Cardiothoracic Surgery, No. 324 Hospital of People's Liberation Army, Chongqing, China
| | - Li Tan
- Department of Microbiology, College of Basic Medical Sciences, Third Military Medical University (Army Medical University), Chongqing, China
| | - Shengpeng Yu
- Department of Orthopedics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Han Li
- Cadet Brigade, Third Military Medical University (Army Medical University), Chongqing, China
| | - Guoqing Bai
- Cadet Brigade, Third Military Medical University (Army Medical University), Chongqing, China
| | - Shu Li
- Department of Microbiology, College of Basic Medical Sciences, Third Military Medical University (Army Medical University), Chongqing, China
| | - Xiancai Rao
- Department of Microbiology, College of Basic Medical Sciences, Third Military Medical University (Army Medical University), Chongqing, China
| | - Zhao Xie
- Department of Orthopedics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Xianming Shi
- MOST-USDA Joint Research Center for Food Safety, School of Agriculture and Biology, and State Key Laboratory of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai, China
| | - Yizhi Peng
- Institute of Burn Research, State Key Laboratory of Trauma, Burns and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Xiaomei Hu
- Department of Microbiology, College of Basic Medical Sciences, Third Military Medical University (Army Medical University), Chongqing, China
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Tunsjø HS, Kalyanasundaram S, Charnock C, Leegaard TM, Moen AEF. Challenges in the identification of methicillin-resistantStaphylococcus argenteusby routine diagnostics. APMIS 2018; 126:533-537. [DOI: 10.1111/apm.12843] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 04/04/2018] [Indexed: 11/27/2022]
Affiliation(s)
- Hege Smith Tunsjø
- Department of Health Sciences; OsloMet - Oslo Metropolitan University; Oslo Norway
- Department of Microbiology and Infection Control; Akershus University Hospital; Lørenskog Norway
| | - Sumana Kalyanasundaram
- Department of Core Facilities; Bioinformatics Core Facility; Institute of Cancer Research; Radium Hospital; Oslo University Hospital; Oslo Norway
- Department of Clinical Molecular Biology (EpiGen); Akershus University Hospital; Lørenskog Norway
| | - Colin Charnock
- Department of Health Sciences; OsloMet - Oslo Metropolitan University; Oslo Norway
| | - Truls Michael Leegaard
- Department of Microbiology and Infection Control; Akershus University Hospital; Lørenskog Norway
- Institute of Clinical Medicine; University of Oslo; Oslo Norway
| | - Aina E. F. Moen
- Department of Clinical Molecular Biology (EpiGen); Akershus University Hospital; Lørenskog Norway
- Institute of Clinical Medicine; University of Oslo; Oslo Norway
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48
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Suzuki Y, Kubota H, Ono HK, Kobayashi M, Murauchi K, Kato R, Hirai A, Sadamasu K. Food poisoning outbreak in Tokyo, Japan caused by Staphylococcus argenteus. Int J Food Microbiol 2017; 262:31-37. [DOI: 10.1016/j.ijfoodmicro.2017.09.005] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Revised: 06/08/2017] [Accepted: 09/10/2017] [Indexed: 10/18/2022]
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49
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Zhang DF, Zhi XY, Zhang J, Paoli GC, Cui Y, Shi C, Shi X. Preliminary comparative genomics revealed pathogenic potential and international spread of Staphylococcus argenteus. BMC Genomics 2017; 18:808. [PMID: 29058585 PMCID: PMC5651615 DOI: 10.1186/s12864-017-4149-9] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2017] [Accepted: 10/02/2017] [Indexed: 11/10/2022] Open
Abstract
Background Staphylococcus argenteus and S. schweitzeri, were recently proposed as novel species within S. aureus complex (SAC). S. argenteus has been reported in many countries and can threaten human health. S. schweitzeri has not been associated with human infections, but has been isolated from non-human primates. Questions regarding the evolution of pathogenicity of these two species will remain elusive until an exploratory evolutionary framework is established. Results We present genomic comparison analysis among members of SAC based on a pan-genome definition, which included 15 S. argenteus genomes (five newly sequenced), six S. schweitzeri genomes and 30 divergent S. aureus genomes. The three species had divergent core genomes and rare interspecific recombination was observed among the core genes. However, some subtypes of staphylococcal cassette chromosome mec (SCCmec) elements and prophages were present in different species. Of 111 tested virulence genes of S. aureus, 85 and 86 homologous genes were found in S. argenteus and S. schweitzeri, respectively. There was no difference in virulence gene content among the three species, but the sequence of most core virulence genes was divergent. Analysis of the agr locus and the genes in the capsular polysaccharides biosynthetic operon revealed that they both diverged before the speciation of SAC members. Furthermore, the widespread geographic distribution of S. argenteus, sequence type 2250, showed ambiguous biogeographical structure among geographically isolated populations, demonstrating an international spread of this pathogen. Conclusions S. argenteus has spread among several countries, and invasive infections and persistent carriage may be not limited to currently reported regions. S. argenteus probably had undergone a recent host adaption and can cause human infections with a similar pathogenic potential. Electronic supplementary material The online version of this article (10.1186/s12864-017-4149-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Dao-Feng Zhang
- MOST-USDA Joint Research Center for Food Safety, School of Agriculture and Biology & State Key Laboratory of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Xiao-Yang Zhi
- Yunnan Institute of Microbiology, School of Life Sciences, Yunnan University, Kunming, 650091, China
| | - Jing Zhang
- MOST-USDA Joint Research Center for Food Safety, School of Agriculture and Biology & State Key Laboratory of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - George C Paoli
- USDA-MOST Joint Research Center for Food Safety & Molecular Characterization of Foodborne Pathogens Research Unit, U.S. Department of Agriculture, Agricultural Research Service, Eastern Regional Research Center, Wyndmoor, PA, 19038, USA
| | - Yan Cui
- MOST-USDA Joint Research Center for Food Safety, School of Agriculture and Biology & State Key Laboratory of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Chunlei Shi
- MOST-USDA Joint Research Center for Food Safety, School of Agriculture and Biology & State Key Laboratory of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Xianming Shi
- MOST-USDA Joint Research Center for Food Safety, School of Agriculture and Biology & State Key Laboratory of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai, 200240, China. .,, Present address: No. 800 Dongchuan RD. Minhang District, Shanghai, 200240, China.
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50
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Wakabayashi Y, Umeda K, Yonogi S, Nakamura H, Yamamoto K, Kumeda Y, Kawatsu K. Staphylococcal food poisoning caused by Staphylococcus argenteus harboring staphylococcal enterotoxin genes. Int J Food Microbiol 2017; 265:23-29. [PMID: 29112896 DOI: 10.1016/j.ijfoodmicro.2017.10.022] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Revised: 10/16/2017] [Accepted: 10/18/2017] [Indexed: 10/18/2022]
Abstract
Staphylococcal food poisoning (SFP) is caused by staphylococcal enterotoxins (SEs) preformed in food materials. SE genes are encoded on mobile genetic elements and are widely found across Staphylococcus species including S. argenteus, although most SFP cases are caused by S. aureus. S. argenteus, recently discriminated from S. aureus as a novel species, are non-pigmented staphylococci phenotypically related to S. aureus. In 2014 and 2015, two independent food poisoning cases occurred in Osaka, Japan, in which non-pigmented staphylococci were predominantly isolated. Several enterotoxin genes (seb, seg, sei, sem, sen, seo, and selu2) were found in their genome and the production of SEB was confirmed by reverse passive agglutination tests. The non-pigmented isolates from patients, food handlers, food, and cooking utensils all produced the same pulsed-field gel electrophoresis pattern. These non-pigmented isolates were coagulase-positive and biochemically identical to S. aureus. We performed further genetic analysis using nucA sequencing and multi-locus sequence typing, and identified these isolates as S. argenteus. We also found that seb was encoded on the Staphylococcus aureus pathogenicity island, while seg, sei, sem, sen, seo, and selu2 were encoded on the enterotoxin gene cluster. From these results, we concluded that the two food poisoning outbreaks were SFP cases caused by S. argenteus harboring SE genes.
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Affiliation(s)
- Yuki Wakabayashi
- Bacteriology Section, Division of Microbiology, Osaka Institute of Public Health Morinomiya Center, Higashinari-ku, Osaka, Japan
| | - Kaoru Umeda
- Microbiology Section, Division of Microbiology, Osaka Institute of Public Health Tennoji Center, Tennoji-ku, Osaka, Japan
| | - Shinya Yonogi
- Bacteriology Section, Division of Microbiology, Osaka Institute of Public Health Morinomiya Center, Higashinari-ku, Osaka, Japan.
| | - Hiromi Nakamura
- Microbiology Section, Division of Microbiology, Osaka Institute of Public Health Tennoji Center, Tennoji-ku, Osaka, Japan
| | - Kaori Yamamoto
- Microbiology Section, Division of Microbiology, Osaka Institute of Public Health Tennoji Center, Tennoji-ku, Osaka, Japan
| | - Yuko Kumeda
- Research Organization for the 21st Century, Osaka Prefecture University, Naka-ku, Sakai, Japan
| | - Kentaro Kawatsu
- Bacteriology Section, Division of Microbiology, Osaka Institute of Public Health Morinomiya Center, Higashinari-ku, Osaka, Japan
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