Changes in the Gut Microbiome Contribute to the Development of Behcet's Disease via Adjuvant Effects

From BugSigDB
Reviewed Marked as Reviewed by Peace Sandy on 2024-6-5
study design
Citation
PMID PubMed identifier for scientific articles.
DOI Digital object identifier for electronic documents.
URI
Authors
Wang Q, Yi S, Su G, Du Z, Pan S, Huang X, Cao Q, Yuan G, Kijlstra A, Yang P
Journal
Frontiers in cell and developmental biology
Year
2021
Keywords:
Behcet’s disease, T cells, autoimmune disease, fecal transplantation, gut microbiome, neutrophils
Behcet's disease (BD) is associated with considerable gut microbiome changes. However, it still remains unknown how the composition of the gut microbiome exactly affects the development of this disease. In this study, transplantation of stool samples from patients with active ocular BD to mice via oral gavage was performed. This resulted in decreases of three short chain fatty acids (SCFAs) including butyric acid, propionic acid and valeric acid in the feces of the BD-recipient group. Intestinal barrier integrity of mice receiving BD feces was damaged as shown by a decreased expression of tight junction proteins and was associated with the release of Lipopolysaccharides (LPS) in the circulation. The mice also showed a higher frequency of splenic neutrophils as well as an enrichment of genes associated with innate immune responses in the neutrophils and CD4 + T cells as identified by single cell RNA sequencing. Analysis of neutrophils and T cells functions in these mice showed an enhanced mesenteric lymph node and splenic Th1 and Th17 cell differentiation in association with activation of neutrophils. Transplantation of BD feces to mice and subsequent induction of experimental uveitis (EAU) or encephalomyelitis (EAE) led to an exacerbation of disease in both models, suggesting a microbial adjuvant effect. These findings suggest that the gut microbiome may regulate an autoimmune response via adjuvant effects including increased gut permeability and enhancement of innate immunity.

Experiment 1


Reviewed Marked as Reviewed by Peace Sandy on 2024-6-5

Curated date: 2024/04/24

Curator: Scholastica

Revision editor(s): Scholastica

Subjects

Location of subjects
China
Host species Species from which microbiome was sampled. Contact us to have more species added.
Mus musculus
Body site Anatomical site where microbial samples were extracted from according to the Uber Anatomy Ontology
Feces Cow dung,Cow pat,Droppings,Dung,Excrement,Excreta,Faeces,Fecal material,Fecal matter,Fewmet,Frass,Guano,Matières fécales@fr,Merde@fr,Ordure,Partie de la merde@fr,Piece of shit,Porción de mierda@es,Portion of dung,Portion of excrement,Portion of faeces,Portion of fecal material,Portion of fecal matter,Portion of feces,Portion of guano,Portion of scat,Portionem cacas,Scat,Spoor,Spraint,Stool,Teil der fäkalien@de,Feces,feces
Condition The experimental condition / phenotype studied according to the Experimental Factor Ontology
Behcet's syndrome Adamantiades-Behcet disease,BD,Bechet syndrome,BEHCET DIS,Behcet Disease,Behcet disease,Behcet syndrome,Behcet's disease,Behcet's syndrome,Behcets Syndrome,Behet's syndrome,Behet's syndrome (disorder),Behçet disease,Behçet syndrome,Behçet's disease,Behçet's syndrome,Behçet-Adamantiades syndrome,Behçet’s disease,Morbus Behçet's syndrome,silk road disease,triple symptom complex,Triple-Symptom Complex,behcet's syndrome
Group 0 name Corresponds to the control (unexposed) group for case-control studies
Healthy controls-recipient mice
Group 1 name Corresponds to the case (exposed) group for case-control studies
Behcet's disease-recipient mice
Group 1 definition Diagnostic criteria applied to define the specific condition / phenotype represented in the case (exposed) group
Mice colonized by fecal microbial transplantation (FMT) from Behcet's disease patients
Group 0 sample size Number of subjects in the control (unexposed) group
5
Group 1 sample size Number of subjects in the case (exposed) group
5
Antibiotics exclusion Number of days without antibiotics usage (if applicable) and other antibiotics-related criteria used to exclude participants (if any)
1 month

Lab analysis

Sequencing type
16S
16S variable region One or more hypervariable region(s) of the bacterial 16S gene
V3-V4
Sequencing platform Manufacturer and experimental platform used for quantifying microbial abundance
Illumina

Statistical Analysis

Data transformation Data transformation applied to microbial abundance measurements prior to differential abundance testing (if any).
relative abundances
Statistical test
LEfSe
Significance threshold p-value or FDR threshold used for differential abundance testing (if any)
0.05
MHT correction Have statistical tests be corrected for multiple hypothesis testing (MHT)?
Yes
LDA Score above Threshold for the linear discriminant analysis (LDA) score for studies using the popular LEfSe tool
2
Matched on Factors on which subjects have been matched on in a case-control study
sex, age

Alpha Diversity

Shannon Estimator of species richness and species evenness: more weight on species richness
unchanged
Richness Number of species
unchanged

Signature 1

Reviewed Marked as Reviewed by Peace Sandy on 2024-6-5

Curated date: 2024/04/24

Curator: Scholastica

Revision editor(s): Scholastica, Peace Sandy

Source: Fig. 1C

Description: Differentially abundant taxa in Behcet's disease-recipient mice versus healthy controls-recipient mice

Abundance in Group 1: increased abundance in Behcet's disease-recipient mice

NCBI Quality ControlLinks
Lactococcus
Bilophila
Escherichia coli
Enterobacteriaceae
Enterobacterales
Gammaproteobacteria
Coprococcus
Comamonas
Odoribacter
Enterorhabdus
Rubrobacteraceae
Rubrobacterales
Phascolarctobacterium
Acidaminococcaceae
Rubrobacter
Eisenbergiella
Selenomonadales
Negativicutes
Ureaplasma
Oxalobacteraceae
Massilia
Allisonella

Revision editor(s): Scholastica, Peace Sandy

Signature 2

Reviewed Marked as Reviewed by Peace Sandy on 2024-6-5

Curated date: 2024/04/24

Curator: Scholastica

Revision editor(s): Scholastica, Peace Sandy

Source: Fig. 1C

Description: Differentially abundant taxa in Behcet's disease-recipient mice versus healthy controls-recipient mice

Abundance in Group 1: decreased abundance in Behcet's disease-recipient mice

NCBI Quality ControlLinks
Coriobacteriales
Actinomycetota
Olsenella
Coriobacteriaceae
Bacillaceae
Bacillus
Prevotellaceae
Verrucomicrobiaceae
Verrucomicrobiia
Akkermansia
Verrucomicrobiales
Alloprevotella

Revision editor(s): Scholastica, Peace Sandy