Cited by 18Antifungal resistance and susceptibilityGut microbiota and healthFungal Infections and Studies

Intestinal colonization with Candida auris and mucosal immune response in mice treated with cefoperazone oral antibiotic

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Das, Diprasom, HogenEsch, Harm, Thangamani, Shankar·2023·Frontiers in Immunology

Abstract

Candida auris, an emerging multi-drug resistant fungal pathogen, causes invasive infections in humans. The factors regulating the colonization of C. auris in host niches are not well understood. In this study, we examined the effect of antibiotic-induced gut dysbiosis on C. auris intestinal colonization, dissemination, microbiome composition and the mucosal immune response. Our results indicate that mice treated with cefoperazone alone had a significant increase in C. auris intestinal colonization compared to untreated control groups. A significant increase in the dissemination of C. auris from the intestine to internal organs was observed in antibiotic-treated immunosuppressed mice. Intestinal colonization of C. auris alters the microbiome composition of antibiotic-treated mice. Relative abundance of firmicutes members mainly Clostridiales and Paenibacillus were considerably increased in the cefoperazone-treated mice infected with C. auris compared to cefoperazone-treated uninfected mice. Next, we examined the mucosal immune response of C. auris infected mice and compared the results with Candida albicans infection. The number of CD11b+ CX3CR1+ macrophages was significantly decreased in the intestine of C. auris infected mice when compared to C. albicans infection. On the other hand, both C. auris and C. albicans infected mice had a comparable increase of the number of Th17 and Th22 cells in the intestine. A significant increase in Candida-specific IgA was observed in the serum of C. auris but not in the C. albicans infected mice. Taken together, treatment with broad-spectrum antibiotic increased the colonization and dissemination of C. auris from the intestine. Furthermore, findings from this study for the first time revealed the microbiome composition, innate and adaptive cellular immune response to intestinal infection with C. auris.

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  • C. auris and C. albicans elicit similar levels of cellular adaptive immune responses in the intestine.

    “However, using an intestinal mouse model of infection, we recently found that C. auris and C. albicans elicit similar levels of cellular adaptive immune responses in the intestine (29).”

    From Differential skin immune responses in mice intradermally infected with <i>Candida auris</i> and <i>Candida albicans</i> (2023) · cites this paper as [29]

    The Results section on adaptive immune response (page not provided) reports increases in intestinal Th17 and Th22 cells in both infected groups, supporting similarity for those cell types. But intestinal Th1 cell numbers were significantly higher in C. auris-infected mice than in C. albicans-infected mice, so the claim overgeneralizes across cellular adaptive responses. The comparison was also specific to cefoperazone-treated mice. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • Mice orally infected with C. auris but not C. albicans had increased fungal-specific IgA levels in their serum.

    “Mice orally infected with C. auris but not C. albicans had increased fungal-specific IgA levels in their serum (29).”

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Authors
Das, D., HogenEsch, H., & Thangamani, S.
Affiliations
Purdue University West Lafayette (US)
Corresponding author
Thangamani, Shankar
Venue
Frontiers in Immunology
Published
2023-04-11
Volume
14
Pages
1123200-1123200
ISSN
1664-3224 (ISSN-L)
OpenAlex
W4364368492
Cited by
18
References
45
Citations by year
2026: 6 · 2025: 4 · 2024: 5 · 2023: 3
FWCI
3.73
Type
journal article
Language
en
Open access
Locations
  • Frontiers in Immunology (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
Purdue University
Topics
  • Health Sciences › Medicine › Infectious Diseases › Antifungal resistance and susceptibility
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
  • Health Sciences › Medicine › Epidemiology › Fungal Infections and Studies
Keywords
Candida auris, intestinal colonization, cefoperazone, antibiotic-induced gut dysbiosis, gut microbiota, mucosal immune response, Candida albicans, macrophages, Th17 cells, Th22 cells, IgA, fungal dispersal, Paenibacillus, Clostridiales
MeSH terms
Candida auris, Animals, Anti-Bacterial Agents, Candida albicans, Cefoperazone, Humans, Immunity, Mucosal, Mice

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