Emerging Pathogens in Planetary Health and Lessons from Comparative Genome Analyses of Three Clostridia Species

(CD) is a major planetary health burden. A Gram-positive opportunistic pathogen, CD, colonizes the large intestine and is implicated in sepsis, pseudomembranous colitis, and colorectal cancer. infection typically following antibiotic exposure results in dysbiosis of the gut microbiome, and is one of...

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Veröffentlicht in:Omics (Larchmont, N.Y.) N.Y.), 2023-06, Vol.27 (6), p.247-259
Hauptverfasser: Tanwar, Ankit Singh, Shruptha, Padival, Jnana, Apoorva, Brand, Angela, Ballal, Mamatha, Satyamoorthy, Kapaettu, Murali, Thokur Sreepathy
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Sprache:eng
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Zusammenfassung:(CD) is a major planetary health burden. A Gram-positive opportunistic pathogen, CD, colonizes the large intestine and is implicated in sepsis, pseudomembranous colitis, and colorectal cancer. infection typically following antibiotic exposure results in dysbiosis of the gut microbiome, and is one of the leading causes of diarrhea in the elderly population. While several studies have focused on the toxigenic strains of CD, gut commensals such as (CB) and (CT) could harbor toxin/virulence genes, and thus pose a threat to human health. In this study, we sequenced and characterized three isolates, namely, CT (MALS001), CB (MALS002), and CD (MALS003) for their antimicrobial, cytotoxic, antiproliferative, genomic, and proteomic profiles. Although cytotoxic and antiproliferative potential were observed predominantly in CD MALS003, genome analysis revealed pathogenic potential of CB MALS002 and CT MALS001. Pangenome analysis revealed the presence of several accessory genes typically involved in fitness, virulence, and resistance characteristics in the core genomes of sequenced strains. The presence of an array of virulence and antimicrobial resistance genes in CB MALS002 and CT MALS001 suggests their potential role as emerging pathogens with significant impact on planetary health.
ISSN:1557-8100
1557-8100
DOI:10.1089/omi.2023.0034