Abstract
Rheumatoid arthritis (RA) is a systemic musculoskeletal disease where immune dysregulation and subsequent autoimmunity induce significant synovial joint inflammation and damage, causing pain and disability. RA disease onset is promoted through multifaceted interactions between genetic and environmental risk factors. However, the mechanisms of disease onset are not completely understood and disease-specific treatments are yet to be developed. Current RA treatments include nonspecific disease-modifying antirheumatic drugs (DMARDs) that suppress destructive immune responses and prevent damage. However, DMARDs are not curative, and relapses are common, necessitating lifelong therapy in most patients. Additionally, DMARD-induced systemic immunosuppression increases the risk of serious infections and malignancies. Herein, we review the current understanding of RA disease pathogenesis, with a focus on T and B cell immune tolerance breakdown, and discuss the development of antigen-specific RA therapeutics that aim to restore a state of immune tolerance, with the potential for disease prevention and reduction of treatment-associated adverse effects.
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