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- Mammaliicoccus sciuri's Pan-Immune System and the Dynamics of Horizontal Gene Transfer Among Staphylococcaceae: a One-Health CRISPR Tale
- Allan de Carvalho, Marcia Giambiagi-deMarval, Ciro César Rossi
- J. Microbiol. 2024;62(9):775-784. Published online July 22, 2024
- DOI: https://doi.org/10.1007/s12275-024-00156-7
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- 1 Web of Science
- 2 Crossref
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Abstract
- Recently emancipated from the Staphylococcus genus due to genomic differences, Mammaliicoccus sciuri, previously classified as an occasional pathogen, emerges as a significant player in the landscape of resistance gene dissemination among Staphylococcaceae. Despite its classification, its role remained enigmatic. In this study, we delved into the genomic repertoire of M. sciuri to unravel its contribution to resistance and virulence gene transfer in the context of One Health. Through comprehensive analysis of publicly available genomes, we unveiled a diverse pan-immune system adept at defending against exogenous genetic elements, yet concurrently fostering horizontal gene transfer (HGT). Specifically, exploration of CRISPR-Cas systems, with spacer sequences as molecular signatures, elucidated a global dissemination pattern spanning environmental, animal, and human hosts. Notably, we identified the integration of CRISPR-Cas systems within SCCmecs (Staphylococcal Cassette Chromosome mec), harboring key genes associated with pathogenicity and resistance, especially the methicillin resistance gene mecA, suggesting a strategic adaptation to outcompete other mobile genetic elements. Our findings underscored M. sciuri's active engagement in HGT dynamics and evolutionary trajectories within Staphylococcaceae, emphasizing its central role in shaping microbial communities and highlighting the significance of understanding its implications in the One Health framework, an interdisciplinary approach that recognizes the interconnectedness of human, animal, and environmental health to address global health challenges.
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- From Farm to Community: Dispersal of Potentially Pathogenic Staphylococcus and Mammaliicoccus Species and Antimicrobial Resistance Across Shared Environments
Faizan Ahmad, Samuel Sathler Martuchelle, Ana Luisa Andrade-Oliveira, Vitor Emanuel Lanes Viana, Maria Antônia Silva Melo Sousa, Felipe Sicchierolli da Silveira, Marisa Alves Nogueira-Diaz, Monalessa Fábia Pereira, Marcia Giambiagi-deMarval, Ciro César Ro
Current Microbiology.2025;[Epub] CrossRef - Genomic insights into multidrug and heavy metal resistance in Chryseobacterium sp. BI5 isolated from sewage sludge
Mrinmoy Patra, Anand Kumar Pandey, Suresh Kumar Dubey
Total Environment Microbiology.2025; 1(1): 100005. CrossRef
- From Farm to Community: Dispersal of Potentially Pathogenic Staphylococcus and Mammaliicoccus Species and Antimicrobial Resistance Across Shared Environments
- Emergence of Vancomycin-Intermediate Staphylococcus aureus from Predominant Methicillin-Resistant S. aureus Clones in a Korean Hospital
- Hwa Yun Cha , Hyun Ok Kim , Jong Sook Jin , Je Chul Lee
- J. Microbiol. 2010;48(4):533-535. Published online August 20, 2010
- DOI: https://doi.org/10.1007/s12275-010-0062-5
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- 10 Scopus
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Abstract
- The genetic and epidemiological features of four vancomycin-intermediate Staphylococcus aureus (VISA) isolates obtained from a Korean hospital were evaluated in this study. The VISA isolates were genotyped as sequence type (ST) 5-staphylococcal cassette chromosome mec (SCCmec) II variant (n=2) and ST239- SCCmec III (n=2), which were derived from the predominant methicillin-resistant S. aureus (MRSA) clones in Korean hospitals. One VISA isolate was acquired during vancomycin treatment, whereas three VISA isolates were obtained from the patients who had not previously been exposed to glycopeptides. As VISA is likely to arise from the predominant MRSA clones and may then possibly spread between patients, the emergence of VISA should be monitored with great care in hospitals.
Research Support, Non-U.S. Gov't
- A Comparison of Adult and Pediatric Methicillin-Resistant Staphylococcus aureus Isolates Collected from Patients at a University Hospital in Korea
- Jin Yeol Park , Jong Sook Jin , Hee Young Kang , Eun Hee Jeong , Je Chul Lee , Yoo Chul Lee , Sung Yong Seol , Dong Taek Cho , Jungmin Kim
- J. Microbiol. 2007;45(5):447-452.
- DOI: https://doi.org/2591 [pii]
- 37 View
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Abstract
- In this study, we compared the phenotypic and genotypic characteristics of 138 MRSA isolates obtained from adult and pediatric patients (adult, 50; children, 88). The resistance rates against gentamicin, clindamycin, and ciprofloxacin were much higher in the adult MRSA isolates than in the pediatric MRSA isolates. The ermC gene, which is responsible for inducible clindamycin resistance, was detected in 52(59.1%) of the 88 pediatric MRSA isolates but in only 5(10.0%) of the 50 adult MRSA isolates. MRSA isolates of clonal type ST5 with an integration of SCCmec type II/II variants was the most predominant clone among the adult isolates, while clonal type ST72 with an integration of SCCmec IV/IVA was the most predominant clone among the pediatric MRSA isolates. Staphylococcal enterotoxin A and toxic shock syndrome toxin-1 were prevalent among the adult MRSA isolates but not among the pediatric MRSA isolates. The results of this study demonstrated remarkable differences between adult and pediatric MRSA isolates in terms of their antimicrobial susceptibility profiles, SCCmec type, multilocus sequence type, staphylococcal toxin genes, and erythromycin resistance genes.
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