Microbiota and immune dynamics in rheumatoid arthritis: Mechanisms and therapeutic potential
Jiayang Jin1, Xuanlin Cai1, Peishi Rao1
1Department of Rheumatology and Immunology, Peking University People's Hospital, No. 11, Xizhimen South Street, Xicheng District, Beijing, 100044, China; Beijing Key Laboratory for Rheumatism Mechanism and Immune Diagnosis (BZ0135), No. 11, Xizhimen South Street, Xicheng District, Beijing, 100044, China.
Abstract:
Rheumatoid arthritis (RA) is a complex autoimmune disease with growing evidence implicating the microbiota as a critical contributor to its pathogenesis. This review explores the multifaceted roles of microbial dysbiosis in RA, emphasizing its impact on immune cell modulation, autoantibody production, gut barrier integrity, and joint inflammation. Animal models reveal how genetic predisposition and environmental factors interact with specific microbial taxa to influence disease susceptibility. Dysbiosis-driven metabolic disruptions, including alterations in short-chain fatty acids and bile acids, further exacerbate immune dysregulation and systemic inflammation. Emerging therapeutic strategies-probiotics, microbial metabolites, fecal microbiota transplantation, and antibiotics-offer innovative avenues for restoring microbial balance and mitigating disease progression. By integrating microbiota-targeted approaches with existing treatments, this review highlights the potential to revolutionize RA management through precision medicine and underscores the need for further research to harness the microbiota's therapeutic potential.
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