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Where to Stand with Stromal Cells and Chronic Synovitis in Rheumatoid Arthritis?

Abstract : The synovium exercises its main function in joint homeostasis through the secretion of factors (such as lubricin and hyaluronic acid) that are critical for the joint lubrication and function. The main synovium cell components are fibroblast-like synoviocytes, mesenchymal stromal/stem cells and macrophage-like synovial cells. In the synovium, cells of mesenchymal origin modulate local inflammation and fibrosis, and interact with different fibroblast subtypes and with resident macrophages. In pathologic conditions, such as rheumatoid arthritis, fibroblast-like synoviocytes proliferate abnormally, recruit mesenchymal stem cells from subchondral bone marrow, and influence immune cell activity through epigenetic and metabolic adaptations. The resulting synovial hyperplasia leads to secondary cartilage destruction, joint swelling, and pain. In the present review, we summarize recent findings on the molecular signature and the roles of stromal cells during synovial pannus formation and rheumatoid arthritis progression.
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Contributeur : Nathalie Salvy-Cordoba <>
Soumis le : lundi 27 avril 2020 - 11:44:26
Dernière modification le : vendredi 15 mai 2020 - 12:22:10

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Jean-Marc Brondello, Farida Djouad, Christian Jorgensen. Where to Stand with Stromal Cells and Chronic Synovitis in Rheumatoid Arthritis?. Cells, MDPI, 2019, 8 (10), pp.1257. ⟨10.3390/cells8101257⟩. ⟨hal-02555388⟩



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