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Rheumatoid arthritis (RA) is an autoimmune disease characterised by systemic and chronic synovitis that lead to joint destruction, pain, and many complications. Treatments only relieve certain symptoms, but do not cure RA completely. Prostaglandins (PGs) are lipid signalling molecules and released in the early phase of RA. Increasing evidences have shown five main contribution of PGs to the different stages and symptoms of RA. First, PGs maintain the autoimmune response and immune-system inflammation by modulating the differentiation, maturation, and cytokine production of immune cells. Second, PGs are beneficial for leukocyte infiltration, synovial hyperplasia, and angiogenesis to promote synovitis. Third, PGs are involved in cartilage degradation and bone resorption. Fourth, PGs are important mediators of joint-pain regulation. Finally, in the late stage of RA inflammation, PGs play a part in joint protection. Those findings suggest that PGs are potential therapy targets for RA. This review highlights recent advances in the RA development caused by PGs, and provides recommendations for future research directions.


Yuan Ma, Fen-Fang Hong, Shu-Long Yang. Role of prostaglandins in rheumatoid arthritis. Clinical and experimental rheumatology. 2021 Jan-Feb;39(1):162-172

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PMID: 32828139

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