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http://hdl.handle.net/1843/62070| Type: | Artigo de Periódico |
| Title: | Il-22 increases the production of sfrp3 by fls in inflammatory joint diseases |
| Authors: | Gustavo Gomes Resende Camilla Ribeiro Lima Machado M.a. Rocha Rbv Macedo Adriana Maria Kakehasi Marcus Vinícius Melo de Andrade |
| Abstract: | Rheumatoid arthritis (RA), psoriatic arthritis (PsA), and ankylosing spondylitis (AS) are inflammatory diseases with different bone remodeling patterns. Fibroblast-like synoviocytes (FLS) are cells involved in the transition from an acute and reparable phase to a chronic and persistent stage in these diseases. The distinction of joint phenotypes involves inflammatory cytokines such as tumor necrosis factor alpha (TNF-a), interleukin (IL)-17, and IL-22 directly or through key signaling pathways such as Wnt. To evaluate the role of FLS as the source of Wnt antagonists (sFRP3/FRZB and Dkk1) in the synovia, levels of TNF- a, IL-17, IL-22, Dkk1, and sFRP3 were measured by ELISA directly in the synovial fluid of patients with RA, PsA, or AS. Dkk1 and sFRP3 were also measured in the FLS culture supernatants after different inflammatory stimulus. sFRP3 and Dkk1 are constitutively expressed by FLS. IL-22 and sFRP3 were positively correlated (r=0.76; Po0.01) in synovial fluid. The stimulation of FLS with IL-22, but not TNF-alpha and IL-17, increased the production of sFRP3. No stimulus altered the basal expression of Dkk1. These results showed, for the first time, the ability of IL-22 to increase the expression of sFRP3/FRZB by human FLS in both in vitro and ex vivo models. This finding linked IL-22 to local inhibition of Wnt signaling and possibly to blockade of osteogenesis. Furthermore, FLS presented as a source of this inhibitor in synovial fluid, assigning to this cell a bone injury mechanism. |
| Subject: | Wnt Signaling Pathway Arthritis, Rheumatoid |
| language: | eng |
| metadata.dc.publisher.country: | Brasil |
| Publisher: | Universidade Federal de Minas Gerais |
| Publisher Initials: | UFMG |
| metadata.dc.publisher.department: | MED - DEPARTAMENTO DE APARELHO LOCOMOTOR MED - DEPARTAMENTO DE CLÍNICA MÉDICA |
| Rights: | Acesso Aberto |
| metadata.dc.identifier.doi: | 10.1590/1414-431X20209880 |
| URI: | http://hdl.handle.net/1843/62070 |
| Issue Date: | 2020 |
| metadata.dc.url.externa: | https://doi.org/10.1590/1414-431X20209880 |
| metadata.dc.relation.ispartof: | Brazilian Journal of Medical and Biological Research |
| Appears in Collections: | Artigo de Periódico |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IL-22 increases the production of sFRP3 by FLS in pdfa.pdf | 290.15 kB | Adobe PDF | View/Open |
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