ArticleProceedings of the National Academy of Sciences of the United States of America2025
Synovial MS4A4A correlates with inflammation and counteracts response to corticosteroids in arthritis.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Investigation of complex miRNA-mRNA interaction networks during JAK inhibitor therapy in rheumatoid arthritis.Frontiers in pharmacology · 2026Article
- Causal Relationship Between Psoriatic Arthritis and Coronary Heart Disease: A Mendelian Randomization and Bioinformatics Analysis.Psoriasis (Auckland, N.Z.) · 2026Article
- Article
- Synovial MS4A4A correlates with inflammation and counteracts response to corticosteroids in arthritis.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Stimuli-Responsive Nanoplatforms for Precision Intervention in Rheumatoid Arthritis.Wiley interdisciplinary reviews. Nanomedicine and nanobiotechnologyReview
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Authors and funding
21 authors.
Funding
Abstract
MS4A4A belongs to the MS4A tetraspan protein superfamily and is selectively expressed by the monocyte-macrophage lineage. In this study, we aimed to evaluate the role of MS4A4A+ macrophages in rheumatoid arthritis (RA) pathogenesis and response to treatment. RNA sequencing and immunohistochemistry of synovial samples from either early treatment-naïve or active chronic RA patients showed that MS4A4A expression positively correlated with synovial inflammation. Synovial macrophages from patients treated with corticosteroids (CS) exhibited an enhanced expression of MS4A4A and Fc γ receptor (FcγR) 3. Accordingly, CS enhanced in vitro the expression of MS4A4A and FcγR3 in human and murine macrophages. In an experimental model of arthritis, Ms4a4a deletion had no effect on the disease course but was associated with enhanced therapeutic response selectively to CS. These results suggest that macrophage expression of MS4A4A represents a biomarker of joint inflammation in RA and that its upregulation in concert with FcγR3 by CS counteracts the therapeutic activity of these drugs. Macrophage MS4A4A may represent a biomarker of joint inflammation in RA and a target to amplify the therapeutic activity of CS.
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