The gut microbiome and HLA-B27-associated anterior uveitis: a case-control study.

Bacteroides caccae Eubacterium ramulus Phocaeicola vulgatus Anterior uveitis Gut microbiome HLA-B27 Lipid IVA biosynthesis Whole metagenome shotgun sequencing

Journal

Journal of neuroinflammation
ISSN: 1742-2094
Titre abrégé: J Neuroinflammation
Pays: England
ID NLM: 101222974

Informations de publication

Date de publication:
07 May 2024
Historique:
received: 20 10 2023
accepted: 22 04 2024
medline: 8 5 2024
pubmed: 8 5 2024
entrez: 7 5 2024
Statut: epublish

Résumé

The human gut microbiome (GM) is involved in inflammation and immune response regulation. Dysbiosis, an imbalance in this ecosystem, facilitates pathogenic invasion, disrupts immune equilibrium, and potentially triggers diseases including various human leucocyte antigen (HLA)-B27-associated autoinflammatory and autoimmune diseases such as inflammatory bowel disease (IBD) and spondyloarthropathy (SpA). This study assesses compositional and functional alterations of the GM in patients with HLA-B27-associated non-infectious anterior uveitis (AU) compared to healthy controls. The gut metagenomes of 20 patients with HLA-B27-associated non-infectious AU, 21 age- and sex-matched HLA-B27-negative controls, and 6 HLA-B27-positive healthy controls without a history of AU were sequenced using the Illumina NovaSeq 6000 platform for whole metagenome shotgun sequencing. To identify taxonomic and functional features with significantly different relative abundances between groups and to identify associations with clinical metadata, the multivariate association by linear models (MaAsLin) R package was applied. Significantly higher levels of the Eubacterium ramulus species were found in HLA-B27-negative controls (p = 0.0085, Mann-Whitney U-test). No significant differences in microbial composition were observed at all other taxonomic levels. Functionally, the lipid IV In our cohort, non-infectious AU development is associated with compositional and functional alterations of the GM. Further research is needed to assess the causality of these associations, offering potentially novel therapeutic strategies.

Sections du résumé

BACKGROUND BACKGROUND
The human gut microbiome (GM) is involved in inflammation and immune response regulation. Dysbiosis, an imbalance in this ecosystem, facilitates pathogenic invasion, disrupts immune equilibrium, and potentially triggers diseases including various human leucocyte antigen (HLA)-B27-associated autoinflammatory and autoimmune diseases such as inflammatory bowel disease (IBD) and spondyloarthropathy (SpA). This study assesses compositional and functional alterations of the GM in patients with HLA-B27-associated non-infectious anterior uveitis (AU) compared to healthy controls.
METHODS METHODS
The gut metagenomes of 20 patients with HLA-B27-associated non-infectious AU, 21 age- and sex-matched HLA-B27-negative controls, and 6 HLA-B27-positive healthy controls without a history of AU were sequenced using the Illumina NovaSeq 6000 platform for whole metagenome shotgun sequencing. To identify taxonomic and functional features with significantly different relative abundances between groups and to identify associations with clinical metadata, the multivariate association by linear models (MaAsLin) R package was applied.
RESULTS RESULTS
Significantly higher levels of the Eubacterium ramulus species were found in HLA-B27-negative controls (p = 0.0085, Mann-Whitney U-test). No significant differences in microbial composition were observed at all other taxonomic levels. Functionally, the lipid IV
CONCLUSION CONCLUSIONS
In our cohort, non-infectious AU development is associated with compositional and functional alterations of the GM. Further research is needed to assess the causality of these associations, offering potentially novel therapeutic strategies.

Identifiants

pubmed: 38715051
doi: 10.1186/s12974-024-03109-4
pii: 10.1186/s12974-024-03109-4
doi:

Substances chimiques

HLA-B27 Antigen 0

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

120

Subventions

Organisme : Gottfried und Julia Bangerter-Rhyner-Stiftung
ID : YTCR 24/22

Informations de copyright

© 2024. The Author(s).

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Auteurs

Sophia C Morandi (SC)

Department of Ophthalmology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland. sophia.c.morandi@gmail.com.
Department for BioMedical Research, University of Bern, Bern, Switzerland. sophia.c.morandi@gmail.com.

Elio L Herzog (EL)

Department of Ophthalmology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland.
Graduate School for Cellular and Biomedical Sciences, University of Bern, Bern, Switzerland.

Marion Munk (M)

Department of Ophthalmology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland.

Marco Kreuzer (M)

Department for BioMedical Research, University of Bern, Bern, Switzerland.
Interfaculty Bioinformatics Unit, University of Bern, Bern, Switzerland.

Carlo R Largiadèr (CR)

Department of Clinical Chemistry, Bern University Hospital, Inselspital, University of Bern, Bern, Switzerland.

Sebastian Wolf (S)

Department of Ophthalmology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland.
Department for BioMedical Research, University of Bern, Bern, Switzerland.

Martin Zinkernagel (M)

Department of Ophthalmology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland.
Department for BioMedical Research, University of Bern, Bern, Switzerland.

Denise C Zysset-Burri (DC)

Department of Ophthalmology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland.
Department for BioMedical Research, University of Bern, Bern, Switzerland.

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