1
|
Comparative Genomic Analysis Provides Insights into the Evolution and Genetic Diversity of Community-Genotype Sequence Type 72 Staphylococcus aureus Isolates. mSystems 2021; 6:e0098621. [PMID: 34491085 PMCID: PMC8547429 DOI: 10.1128/msystems.00986-21] [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] [Indexed: 11/20/2022] Open
Abstract
Staphylococcus aureus sequence type (ST) 72, the predominant community-associated methicillin-resistant Staphylococcus aureus (CA-MRSA) lineage in South Korea, has emerged as a major cause of bloodstream infection in hospital settings. However, relatively little information is available regarding the genomic characteristics and dissemination of ST72. Here, we characterized the whole-genome sequence of 24 ST72 isolates from China, along with 83 ST72 genomes from global sources. Of these 107 ST72 isolates, 63 were MRSA and 44 were methicillin-susceptible S. aureus (MSSA). Phylogenetic analysis revealed four distinct clades (A, B, C, and D), of which clade D contained only MSSA isolates. By characterizing the evolutionary dynamics of the ST72 lineage, we found that the MRSA from China might not have developed from the MSSA in China. Furthermore, we observed both international transmission of ST72 isolates and interregional transmission within China. The distributions of the SCCmec and spa types of isolates differed among clades. Additionally, in silico analyses revealed that the distributions of resistance genes, virulence genes, and mobile genetic elements (MGEs) also differed among isolates of the four clades. This was especially true for clade D isolates, which had the lowest level of antimicrobial resistance and had obtained specific virulence genes such as tsst-1 by acquisition of specific MGEs. Notably, ST72 MRSA isolates were more antibiotic resistant than ST72 MSSA isolates, but comparably virulent. Our findings provide insight into the potential transmission and genotypic features of ST72 clones across the globe. IMPORTANCE Understanding the evolution and dissemination of community-genotype ST72 Staphylococcus aureus isolates is important, as isolates of this lineage have rapidly spread into hospital settings and caused serious health issues. In this study, we first carried out genome-wide analysis of 107 global ST72 isolates to characterize the evolution and genetic diversity of the ST72 lineage. We found that the MSSA lineage in China might have evolved independently from the MRSA isolates from China, and that ST72 isolates have the potential to undergo both international transmission and interregional transmission within China. The diversity of isolates correlated with distinct acquisitions of SCCmec elements, antibiotic resistance genes, virulence genes, and mobile genetic elements. The comprehensive information on the ST72 lineage emerging from this study will enable improved therapeutic approaches and rapid molecular diagnosis.
Collapse
|
2
|
Batool N, Shamim A, Chaurasia AK, Kim KK. Genome-Wide Analysis of Staphylococcus aureus Sequence Type 72 Isolates Provides Insights Into Resistance Against Antimicrobial Agents and Virulence Potential. Front Microbiol 2021; 11:613800. [PMID: 33552024 PMCID: PMC7854921 DOI: 10.3389/fmicb.2020.613800] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Accepted: 12/17/2020] [Indexed: 12/24/2022] Open
Abstract
Staphylococcus aureus sequence type 72 (ST72) is a major community-associated (CA) methicillin-resistant Staphylococcus aureus (MRSA) that has rapidly entered the hospital setting in Korea, causing mild superficial skin wounds to severe bloodstream infections. In this study, we sequenced and analyzed the genomes of one methicillin-resistant human isolate and one methicillin-sensitive human isolate of ST72 from Korea, K07-204 and K07-561, respectively. We used a subtractive genomics approach to compare these two isolates to other 27 ST72 isolates to investigate antimicrobial resistance (AMR) and virulence potential. Furthermore, we validated genotypic differences by phenotypic characteristics analysis. Comparative and subtractive genomics analysis revealed that K07-204 contains methicillin (mecA), ampicillin (blaZ), erythromycin (ermC), aminoglycoside (aadD), and tetracycline (tet38, tetracycline efflux pump) resistance genes while K07-561 has ampicillin (blaZ) and tetracycline (tet38) resistance genes. In addition to antibiotics, K07-204 was reported to show resistance to lysostaphin treatment. K07-204 also has additional virulence genes (adsA, aur, hysA, icaABCDR, lip, lukD, sdrC, and sdrE) compared to K07-561, which may explain the differential virulence potential of these human isolates of ST72. Unexpectedly, the virulence potential of K07-561 was higher in an in vivo wax-worm infection model than that of K07-204, putatively due to the presence of a 20-fold higher staphyloxanthin concentration than K07-204. Comprehensive genomic analysis of these two human isolates, with 27 ST72 isolates, and S. aureus USA300 (ST8) suggested that acquisition of both virulence and antibiotics resistance genes by ST72 isolates might have facilitated their adaptation from a community to a hospital setting where the selective pressure imposed by antibiotics selects for more resistant and virulent isolates. Taken together, the results of the current study provide insight into the genotypic and phenotypic features of various ST72 clones across the globe, delivering more options for developing therapeutics and rapid molecular diagnostic tools to detect resistant bacteria.
Collapse
Affiliation(s)
- Nayab Batool
- Department of Precision Medicine, Sungkyunkwan University School of Medicine, Suwon, South Korea
| | - Amen Shamim
- Department of Precision Medicine, Sungkyunkwan University School of Medicine, Suwon, South Korea
| | - Akhilesh Kumar Chaurasia
- Department of Precision Medicine, Sungkyunkwan University School of Medicine, Suwon, South Korea.,Institute of Antimicrobial Resistance and Therapeutics (IAMRT), Sungkyunkwan University (SKKU), Suwon, South Korea
| | - Kyeong Kyu Kim
- Department of Precision Medicine, Sungkyunkwan University School of Medicine, Suwon, South Korea.,Institute of Antimicrobial Resistance and Therapeutics (IAMRT), Sungkyunkwan University (SKKU), Suwon, South Korea.,Samsung Advanced Institute for Health Sciences and Technology (SAIHST), Samsung Medical Center (SMC), Sungkyunkwan University School of Medicine, Seoul, South Korea
| |
Collapse
|
3
|
da Silva AC, Rodrigues MX, Silva NCC. Methicillin-resistant Staphylococcus aureus in food and the prevalence in Brazil: a review. Braz J Microbiol 2020; 51:347-356. [PMID: 31667799 PMCID: PMC7058716 DOI: 10.1007/s42770-019-00168-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Accepted: 10/09/2019] [Indexed: 12/15/2022] Open
Abstract
Foodborne diseases (FBD) occur worldwide and affect a large part of the population, being a cause of international concern among health authorities. Staphylococcus aureus can be transmitted by contaminated food, and it is one of the pathogens that most cause foodborne outbreaks in Brazil. Currently, this organism's ability in developing resistance to antibiotics is notorious; methicillin-resistant Staphylococcus aureus-MRSA-is known for its resistance to methicillin, oxacillin, and others. MRSA is one of the leading causes of infections, becoming a major threat to human health worldwide due to the numerous toxins that can produce. At first, the transmission of MRSA occurred in clinical environments; but in recent decades, its presence has been reported in the community, outside the hospital environment, including food and food-producing animals around the world. In this review, information about MRSA was gathered to verify MRSA incidence in the world but especially in Brazil in food samples, food handlers, food-producing animals, and food processing environments. The studies show that MRSA is easily found and in certain cases with high frequency, thus representing a potential risk to public health.
Collapse
Affiliation(s)
- Anderson Clayton da Silva
- Department of Food Science, Faculty of Food Engineering (FEA), University of Campinas (UNICAMP), Rua Monteiro Lobato, Campinas, SP, Brazil
| | - Marjory Xavier Rodrigues
- Department of Population Medicine and Diagnostic Sciences, College of Veterinary, Medicine Cornell University, Campus Road, Ithaca, NY, USA
| | - Nathália Cristina Cirone Silva
- Department of Food Science, Faculty of Food Engineering (FEA), University of Campinas (UNICAMP), Rua Monteiro Lobato, Campinas, SP, Brazil.
| |
Collapse
|
4
|
Ceballos S, Aspiroz C, Ruiz-Ripa L, Azcona-Gutierrez JM, López-Cerero L, López-Calleja AI, Álvarez L, Gomáriz M, Fernández M, Torres C, Ezpeleta C, Martín C, Arribas J, Navarro C, Arias A, Fortuño B, Pereira J, Milagro A, Torres L, Soria-Blanco LM, Canut A, Cordón ML, Megías G, Calvo J, Rezusta A. Multicenter study of clinical non-β-lactam-antibiotic susceptible MRSA strains: Genetic lineages and Panton-Valentine leukocidin (PVL) production. Enferm Infecc Microbiol Clin 2019; 37:509-513. [DOI: 10.1016/j.eimc.2019.01.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 01/07/2019] [Accepted: 01/09/2019] [Indexed: 12/19/2022]
|
5
|
Ceballos S, Aspiroz C, Ruiz-Ripa L, Azcona-Gutierrez JM, López-Cerero L, López-Calleja AI, Álvarez L, Gomáriz M, Fernández M, Torres C, Ezpeleta C, Martín C, Arribas J, Navarro C, Arias A, Fortuño B, Pereira J, Milagro A, Torres L, Soria-Blanco LM, Canut A, Cordón ML, Megías G, Calvo J, Rezusta A. Multicenter study of clinical non-β-lactam-antibiotic susceptible MRSA strains: Genetic lineages and Panton-Valentine leukocidin (PVL) production. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.eimce.2019.01.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
|
6
|
Methicillin-resistant Staphylococcus aureus nasal carriage in international medical conference attendees. JOURNAL OF MICROBIOLOGY, IMMUNOLOGY, AND INFECTION = WEI MIAN YU GAN RAN ZA ZHI 2018; 52:242-247. [PMID: 30181097 DOI: 10.1016/j.jmii.2018.08.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Revised: 08/15/2018] [Accepted: 08/17/2018] [Indexed: 01/23/2023]
Abstract
BACKGROUND Carriage of methicillin-resistant Staphylococcus aureus (MRSA) is associated with its transmission. International travels and massive gatherings may accelerate such transmission. MRSA carriage was surveyed among the attendees of two international medical conferences held in Taipei in 2010. METHODS A total of 209 attendees from 23 countries were recruited. Nasal specimens were collected from each volunteer and subjected to polymerase chain reaction (PCR) detection for MRSA. Molecular analysis, including pulsed-field gel electrophoresis, multilocus sequence typing (MLST), typing of staphylococcal cassette chromosome mec (SCCmec) and staphylococcal protein A (spa) genes, and detection of Panton-Valentine leukocidin (PVL) and sasX genes, was performed. RESULTS MRSA carriage was detected in 10 (4.8%) attendees from Vietnam (3/8, 37.5%), Korea (2/6, 33.3%), Japan (2/41, 4.9%), Philippines (2/52, 3.8%), and Bangladesh (1/4, 25.0%). The proportion of MRSA colonizers was significantly higher in the local hospital group compared to those from the other groups (3/17 vs. 7/192, p < 0.05). Six MRSA isolates were available for molecular analysis. They all carried a type IV SCCmec gene. Five pulsotypes were identified; four genotypes, respectively, were identified by MLST and spa typing. None of the isolates carried either PVL or sasX genes. None of common molecular characteristics was shared by isolates from different countries. Most of these isolates were local endemic community clone in each country. CONCLUSIONS As healthcare workers, a certain proportion of international medical conference attendees harbored MRSA in their nares, mostly local endemic community clones in each country, which has the potential of spread among attendees.
Collapse
|
7
|
Phenotypic and genetic characteristics of fluoroquinolone- and methicillin-resistant Staphylococcus aureus. ACTA ACUST UNITED AC 2018. [DOI: 10.1016/j.eimce.2017.06.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
8
|
Moreno-Flores A, Potel-Alvarellos C, Otero-Fernández S, Álvarez-Fernández M. Phenotypic and genetic characteristics of fluoroquinolone- and methicillin-resistant Staphylococcus aureus. Enferm Infecc Microbiol Clin 2018; 36:403-408. [DOI: 10.1016/j.eimc.2017.06.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Revised: 04/15/2017] [Accepted: 06/16/2017] [Indexed: 11/29/2022]
|
9
|
Leanord AT, Coia J. The changing face of methicillin-resistant <em>Staphylococcus aureus</em> infections. Med J Aust 2017; 207:379-380. [PMID: 29092702 DOI: 10.5694/mja17.00641] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Accepted: 08/16/2017] [Indexed: 11/17/2022]
Affiliation(s)
| | - John Coia
- Scottish Microbiology Reference Laboratories, Glasgow, Scotland, United Kingdom
| |
Collapse
|
10
|
Varona-Barquín A, Iglesias-Losada JJ, Ezpeleta G, Eraso E, Quindós G. Vancomycin heteroresistant community associated methicillin-resistant Staphylococcus aureus ST72-SCCmecIVa strain colonizing the nostrils of a five-year-old Spanish girl. Enferm Infecc Microbiol Clin 2016; 35:148-152. [PMID: 27590877 DOI: 10.1016/j.eimc.2016.07.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Revised: 07/27/2016] [Accepted: 07/29/2016] [Indexed: 11/16/2022]
Abstract
BACKGROUND AND OBJECTIVES During a community methicillin-resistant Staphylococcus aureus (MRSA) nasal colonization study, an MRSA strain with vancomycin hetero-resistance (h-VISA) was isolated from a five year-old girl with tetralogy of Fallot without previous exposure to vancomycin. An extended nasal colonization study was performed on all her close relatives. RESULTS Only the patient and her sister were colonized by an h-VISA MRSA strain (clone USA 700, ST72, t148, agr 1 and SCCmec IVa). Mupirocin decolonisation was effective in the elder sister. A new nasal decolonisation in the younger girl using fusidic acid was also successful. However, after decolonisation both sisters were colonized by a methicillin-susceptible S. aureus (ST30, t012 and agr 3) previously isolated from their mother's nostrils. CONCLUSION As S. aureus have a great capacity to spread among people in close contact, knowledge of a patients' colonization status, tracing contacts, and a correct management are critical issues for the successful containment of multiresistant staphylococci.
Collapse
Affiliation(s)
- Aketza Varona-Barquín
- Laboratorio de Micología Médica, UFI 11/25 'Microbios y Salud', Departamento de Inmunología, Microbiología y Parasitología, Facultad de Medicina y Enfermería, Universidad del País Vasco/Euskal Herriko Unibertsitatea UPV/EHU, Bilbao, Spain
| | | | - Guillermo Ezpeleta
- Departamento de Medicina Preventiva y Salud Pública, UFI 11/25 'Microbios y Salud', Facultad de Medicina y Enfermería, Universidad del País Vasco/Euskal Herriko Unibertsitatea UPV/EHU, Bilbao, Spain; Servicio de Medicina Preventiva e Higiene Hospitalaria, Complejo Hospitalario de Navarra, Pamplona, Spain
| | - Elena Eraso
- Laboratorio de Micología Médica, UFI 11/25 'Microbios y Salud', Departamento de Inmunología, Microbiología y Parasitología, Facultad de Medicina y Enfermería, Universidad del País Vasco/Euskal Herriko Unibertsitatea UPV/EHU, Bilbao, Spain
| | - Guillermo Quindós
- Laboratorio de Micología Médica, UFI 11/25 'Microbios y Salud', Departamento de Inmunología, Microbiología y Parasitología, Facultad de Medicina y Enfermería, Universidad del País Vasco/Euskal Herriko Unibertsitatea UPV/EHU, Bilbao, Spain.
| |
Collapse
|
11
|
Coia J. MRSA – seeing the bigger picture. J Hosp Infect 2016; 93:364-5. [DOI: 10.1016/j.jhin.2016.05.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Accepted: 05/31/2016] [Indexed: 10/21/2022]
|