Metagenomic Characterization of Gut Microbiota in Rheumatoid Arthritis-Associated Interstitial Lung Disease: Taxonomic Shifts and Clinical Correlations - Summary - MDSpire
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Metagenomic Characterization of Gut Microbiota in Rheumatoid Arthritis-Associated Interstitial Lung Disease: Taxonomic Shifts and Clinical Correlations
To characterize the role of gut microbiota dysbiosis in rheumatoid arthritis-associated interstitial lung disease (RA-ILD) and identify potential biomarkers.
Approach:
Key Findings:
No significant differences in alpha and beta diversity among groups.
Exploratory analysis showed enrichment of Escherichia/Shigella in RA-ILD and depletion of Roseburia and Ruminococcus.
Pro-inflammatory genera correlated positively with disease activity, while butyrate-producing genera correlated negatively.
Co-occurrence network analysis indicated a more complex network in RA patients compared to HCs and RA-ILD.
Random forest classification identified specific taxa as discriminators between groups.
Interpretation:
RA-ILD is associated with specific gut microbial alterations, suggesting a role for the gut microbiota in RA-ILD pathogenesis via the gut-lung axis.
Limitations:
Small sample size may limit generalizability.
Exploratory findings require validation in larger cohorts.
Conclusion:
The identified taxa warrant validation as candidate biomarkers in larger cohorts.
The procedure was performed under a HOPE Act research protocol at an NYU Langone Health center the institution said is among the limited number of US transplant centers equipped and approved to perform HOPE lung transplants.
