The imbalance of gut microbiota and its correlation with plasma inflammatory cytokines in pemphigus vulgaris patients
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Study information
-
Quality control
- Retracted paper
- Contamination issues suspected
- Batch effect issues suspected
- Uncontrolled confounding suspected
- Results are suspect (various reasons)
- Tags applied
study design
Citation
PMID PubMed identifier for scientific articles.
DOI Digital object identifier for electronic documents.
URI
Authors
Huang S, Mao J, Zhou L, Xiong X, Deng Y
Journal
Scandinavian journal of immunology
Year
2019
Keywords:
cytokines, gut microbiota, pemphigus vulgaris
Pemphigus vulgaris (PV) is an autoimmune disease characterized by the production of IgG autoantibodies owing to an imbalance in the Th1/Th2 and Th17/Tregs cell pathways. The role of gut microbiota in the development of immune system and autoimmune diseases has been unraveled in the last two decades. However, data pertaining to gut microbiota of PV patients is largely lacking. We aimed to compare the gut microbiota of PV patients and healthy controls and assessed potential correlation with circulating cytokines of Th1/Th2/Th17 cell. Faecal bacterial diversity was analysed in 18 PV patients and 14 age- and gender-matched healthy individuals using hypervariable tag sequencing of the V3-V4 region of the 16S rRNA gene. Plasma levels of 20 inflammatory cytokines were assessed using the Luminex screening system. As a result, we identified 10 differentially abundant taxa between patients and controls. At the genera level, Lachnospiracea_incertae_sedis and Coprococcus decreased, while Granulicatella, Flavonifractor enriched in PV. Plasma levels of C5a, interleukin (IL)-2R, IL-6, IL-8, IL-7, IL-1β, IL17A, IL-5 and IL-21 were significantly increased in PV Flavonifractor exhibited a positive correlation with C5a, IL-6, IL-8, IL-7, IL-1β, IL17A and IL-21. Lachnospiracea_incertae_sedis and Coprococcus showed a negative correlation with IL-17A. Our results are consistent with the hypothesis that PV patients have gut microbial dysbiosis which might contribute to the immune disorder and the development of PV.
Experiment 1
Reviewed Marked as Reviewed by Chloe on 2022/03/14
Subjects
- Location of subjects
- China
- Host species Species from which microbiome was sampled. Contact us to have more species added.
- Homo sapiens
- 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
- Condition The experimental condition / phenotype studied according to the Experimental Factor Ontology
- pemphigus vulgaris familial pemphigus vulgaris,pemphigus vulgaris,pemphigus vulgaris, familial,PV
- Group 0 name Corresponds to the control (unexposed) group for case-control studies
- healthy control
- Group 1 name Corresponds to the case (exposed) group for case-control studies
- pemphigus vulgaris
- Group 1 definition Diagnostic criteria applied to define the specific condition / phenotype represented in the case (exposed) group
- pemphigus vulgaris
- Group 0 sample size Number of subjects in the control (unexposed) group
- 14
- Group 1 sample size Number of subjects in the case (exposed) group
- 18
- Antibiotics exclusion Number of days without antibiotics usage (if applicable) and other antibiotics-related criteria used to exclude participants (if any)
- 6 months
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)?
- No
- 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
- age, sex
Alpha Diversity
- Shannon Estimator of species richness and species evenness: more weight on species richness
- unchanged
- Simpson Estimator of species richness and species evenness: more weight on species evenness
- unchanged
Signature 1
Reviewed Marked as Reviewed by Chloe on 2022/03/14
Source: Figure 2b
Description: Bacterial taxa difference between pemphigus vulgaris (PV) patients and healthy controls
Abundance in Group 1: increased abundance in pemphigus vulgaris
Signature 2
Reviewed Marked as Reviewed by Chloe on 2022/03/14
Source: Figure 2b
Description: Bacterial taxa difference between pemphigus vulgaris (PV) patients and healthy controls
Abundance in Group 1: decreased abundance in pemphigus vulgaris
NCBI | Quality Control | Links |
---|---|---|
Alphaproteobacteria | ||
Betaproteobacteria | ||
Burkholderiales | ||
Collinsella | ||
Coprococcus |
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