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An Intestinal Gut Organ Culture System for Analyzing Host-Microbiota Interactions
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Alterations of the gut commensal Akkermansia muciniphila in patients with COVID-19

Zhi-Ming Dai1, Meng-Lu Xu2, Qing-Qing Zhang3

  • 1Department of Anesthesiology, The First People's Hospital of Xianyang, Xianyang, China.

Virulence
|May 13, 2025
PubMed

Insights

Gut bacteria Akkermansia muciniphila (A. muciniphila) is elevated in COVID-19 patients. This finding suggests A. muciniphila may have antiviral properties and modulate immune responses during coronavirus disease 2019.

Area of Science:

  • Microbiology
  • Immunology
  • Gastroenterology

Background:

  • Gut microbiota dysbiosis is linked to coronavirus disease 2019 (COVID-19).
  • Previous studies on Akkermansia muciniphila (A. muciniphila) and COVID-19 have yielded inconsistent results.
  • Understanding the role of specific gut bacteria in COVID-19 pathogenesis is crucial.

Purpose of the Study:

  • To investigate the association between A. muciniphila abundance and COVID-19.
  • To explore the molecular mechanisms by which A. muciniphila might influence host responses to SARS-CoV-2 infection.

Main Methods:

  • Analysis of gut microbial abundance data from COVID-19 patients using the GMrepo database.
  • Extraction of A. muciniphila metabolites and target genes from the GutMGene database.
  • Gene annotation and enrichment analysis using the Metascape database for host cells and tissues post-SARS-CoV-2 infection.

Main Results:

  • A. muciniphila was significantly elevated in COVID-19 patients compared to healthy individuals.
  • A. muciniphila abundance correlated with altered expression of immune-related genes, including increased IL-10, TLR2, TLR4, and decreased IL-12A/B.
  • Regulatory genes associated with A. muciniphila enhance antiviral and cytokine responses, promote cell migration, and regulate epithelial cell proliferation.

Conclusions:

  • The gut commensal A. muciniphila is significantly increased in COVID-19 patients.
  • A. muciniphila plays a role in modulating host immune responses during COVID-19.
  • A. muciniphila shows potential as a probiotic agent with antiviral properties for COVID-19 management.
Keywords:
Akkermansia muciniphilaCOVID-19SARS-CoV-2databasesgut microbiome

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