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Clostridioides difficile strain:food animals | isolate:food animals

ABSTRACT: Clostridioides difficile strain:food animals | isolate:food animals Genome sequencing

PROVIDER: PRJNA487463 | ENA |

REPOSITORIES: ENA

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Clostridioides difficile strain:food animals | isolate:food animals

Project description:Clostridioides difficile strain:food animals | isolate:food animals Genome sequencing

| PRJNA487462 | ENA

Clostridioides difficile strain:food animals | isolate:food animals

Project description:Clostridioides difficile strain:food animals | isolate:food animals Genome sequencing

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Clostridioides difficile: R20291_pMTL84151 transconjugant (C) vs. R20291_pMTL84151-03890 (T1)

Project description:Gene expression level of Clostridioides difficile (C. difficile) strain R20291 comparing control C. difficile carring pMTL84151 as vector plasmid with C. difficile conjugated with a pMTL84151-03890 gene. Goal was to determine the effects of 03890 gene conjugation on C. difficile strain R20291 gene expression.

2023-11-30 | GSE219066 | GEO

Clostridioides difficile responses to calprotectin

Project description:The intestines house a diverse microbiota that must compete for nutrients to survive, but the specific limiting nutrients that control pathogen colonization are not clearly defined. Clostridioides difficile colonization typically requires prior disruption of the microbiota, suggesting that outcompeting commensals for resources is key in establishing C. difficile infection (CDI). The immune protein calprotectin (CP) is released into the gut lumen during CDI to chelate zinc (Zn) and other essential nutrient metals. Yet, the impact of Zn limitation on C. difficile colonization is unknown. To define C. difficile responses to Zn limitation, we performed RNA sequencing on C. difficile exposed to CP. In media with CP, C. difficile upregulated genes involved in metal homeostasis and amino acid metabolism.

2019-10-24 | GSE135912 | GEO

Enterococci enhance Clostridioides difficile pathogenesis

Project description:Clostridioides difficile is one of the most common nosocomial pathogens and a global public health threat. Upon colonization of the gastrointestinal tract, C. difficile is exposed to a rapidly changing polymicrobial environment and a dynamic metabolic milieu. Despite the link between the gut microbiota and susceptibility to C. difficile, the impact of synergistic interactions between the microbiota and pathogens on the outcome of infection is largely unknown. Here, we show that microbial cooperation between C. difficile and Enterococcus has a profound impact on the growth, metabolism, and pathogenesis of C. difficile.. Through a process of nutrient restriction and metabolite cross-feeding, E. faecalis shapes the metabolic environment in the gut to enhance C. difficile fitness and increase toxin production. These findings demonstrate that members of the microbiota, such as Enterococcus, have a previously unappreciated impact on C. difficile behavior and virulence.

2022-09-17 | GSE165751 | GEO

Clostridioides difficile

Project description:Clostridioides difficile from Companion Animals and Owners

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Global transcriptome analysis of colonic tissue during Clostridioides difficile infection

Project description:Clostridioides difficile can cause severe infections in the gastrointestinal tract and affects almost half a million people in the U.S every year. Upon establishment of infection, a strong immune response is induced. We sought to investigate the dynamics of the mucosal host response during C. difficile infection.

2023-09-13 | GSE237574 | GEO

RNA-seq of Clostridioides difficile Δxtr against wild-type strain control

Project description:To reveal the effects of deleting the Δxtr gene in Clostridioides difficile, we first constructed a Δxtr knockout mutant and then examined the resulting phenotypic changes. Finally, to elucidate the underlying mechanisms, we performed RNA-sequencing-based transcriptome analysis.

2025-12-30 | E-MTAB-15575 | biostudies-arrayexpress

Effect of curing the phi027 prophage for gene expresson in Clostridioides difficile clinical isolate 500/12

Project description:Clostridioides difficile is a clinically important nosocomial pathogen whose virulence is primarily associated with toxin production and can be influenced by prophage carriage. In this study, we investigated the molecular basis of phi027-dependent phenotypic differences previously observed between the clinical RT176 strain 500/12 and its prophage-free derivative CKH08. Comparative transcriptomic analysis revealed that loss of phi027 was associated with reduced expression of the sinR/R' operon, downregulation of multiple flagellar biosynthesis genes.

2026-07-01 | GSE336602 | GEO

Clostridioides difficile toxins deregulate tight junction proteins.

Project description:The Clostridioides difficile toxins TcdA and TcdB are responsible for diarrhea and colitis. The aim of this project was to explore the effects of the toxins on epithelial barrier function and the molecular mechanisms for diarrhea and inflammation. RNA-seq of toxin-treated intestinal cell monolayers was performed to describe the C. difficile-mediated effects. mRNA profiles from intestinale epithelial cells were generated by deep sequencing using Illumina NovaSeq 6000. This data provide the basis for subsequent upstream regulator analysis.

2023-11-29 | GSE232704 | GEO

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