Premium
Both Disease Activity and HLA–B27 Status Are Associated With Gut Microbiome Dysbiosis in Spondyloarthritis Patients
Author(s) -
Berland Magali,
Meslier Victoria,
Berreira Ibraim Samar,
Le Chatelier Emmanuelle,
Pons Nicolas,
Maziers Nicolas,
Thirion Florence,
Gauthier Franck,
Plaza Oñate Florian,
Furet JeanPierre,
Leboime Ariane,
SaidNahal Roula,
Levenez Florence,
Galleron Nathalie,
Quinquis Benoît,
Langella Philippe,
Ehrlich Stanislav Dusko,
Breban Maxime
Publication year - 2023
Publication title -
arthritis and rheumatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 4.106
H-Index - 314
eISSN - 2326-5205
pISSN - 2326-5191
DOI - 10.1002/art.42289
Subject(s) - dysbiosis , gut flora , microbiome , ruminococcus , biology , ankylosing spondylitis , immunology , disease , clostridiales , medicine , genetics , bacteria , clostridium
Objective Gut microbiome dysbiosis has previously been reported in spondyloarthritis (SpA) patients and could be critically involved in the pathogenesis of this disorder. The objectives of this study were to further characterize the microbiota structure in SpA patients and to investigate the relationship between dysbiosis and disease activity in light of the putative influence of the genetic background. Methods Shotgun sequencing was performed on fecal DNA isolated from stool samples from 2 groups of adult volunteers: SpA patients (n = 102) and healthy controls (n = 63). A subset of the healthy controls comprised the age‐matched siblings of patients whose HLA–B27 status was known. Changes in gut microbiota composition were assessed based on species diversity, enterotypes, and taxonomic and functional differences. Results Dysbiosis was confirmed in SpA patients as compared to healthy controls. The restriction of microbiota diversity was detected in patients with the most active disease, and the abundance of several bacterial species was correlated with Bath Ankylosing Spondylitis Disease Activity Index score. Among healthy controls, significant differences in microbiota composition were also detected between the HLA–B27–positive and the HLA–B27–negative siblings of SpA patients. We highlighted a decreased abundance of several species of bacteria in SpA patients, especially those bacteria belonging to the Clostridiales order. Among the few species of bacteria showing increased abundance, Ruminococcus gnavus was one of the top differentiating species. Conclusion These findings reveal that genetic background and level of disease activity are likely to influence the composition of the gut microbiota of patients with SpA. It may be appropriate for further research on chronic arthritis to focus on these key parameters.