|
1
|
Feldt J, Schicht M, Welss J, Gelse K, Sesselmann S, Tsokos M, Socher E, Garreis F, Müller T, Paulsen F. Production and Secretion of Gelsolin by Both Human Macrophage- and Fibroblast-like Synoviocytes and GSN Modulation in the Synovial Fluid of Patients with Various Forms of Arthritis. Biomedicines 2022; 10:biomedicines10030723. [PMID: 35327525 PMCID: PMC8945596 DOI: 10.3390/biomedicines10030723] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 03/15/2022] [Accepted: 03/18/2022] [Indexed: 12/04/2022] Open
Abstract
Gelsolin (GSN) is an actin-binding protein involved in cell formation, metabolism and wound closure processes. Since this protein is known to play a role in arthritis, here we investigate how the synovial membrane with its specific synoviocytes contributes to the expression of GSN and how the amount of GSN expressed is modulated by different types of arthritis. Synovial membranes from adult healthy subjects and patients with rheumatoid arthritis (RA) and osteoarthritis (OA) are analyzed by immunofluorescence, Western blot and ELISA. Macrophage-like synoviocytes (MLS) and fibroblast-like synoviocytes (FLS) were isolated, cultured and analyzed for their potential to produce and secrete GSN. In addition, the GSN concentrations in the synovial fluid of various forms of arthritis are determined by ELISA. GSN is produced by the healthy and arthritic synovial membranes. Both forms of synoviocytes (MLS and FLS) release GSN. The results show that there is a significant reduction in GSN in the synovial fluid in adult patients with OA. This reduction is also detectable in adult patients with RA but is not as evident. In juvenile arthritis, there is a slight increase in GSN concentration in the synovial fluid. This study shows that primary MLS and FLS express GSN and that these cells, in addition to articular chondrocytes, contribute to GSN levels in synovial fluid. Furthermore, GSN concentrations are modulated in different types of arthritis. Further studies are needed to fully understand how GSN is involved in joint homeostasis.
Collapse
Affiliation(s)
- Jessica Feldt
- Institute of Functional and Clinical Anatomy, Friedrich-Alexander University Erlangen-Nürnberg (FAU), Universitätsstr. 19, 91054 Erlangen, Germany; (J.F.); (J.W.); (E.S.); (F.G.)
| | - Martin Schicht
- Institute of Functional and Clinical Anatomy, Friedrich-Alexander University Erlangen-Nürnberg (FAU), Universitätsstr. 19, 91054 Erlangen, Germany; (J.F.); (J.W.); (E.S.); (F.G.)
- Correspondence: (M.S.); (F.P.)
| | - Jessica Welss
- Institute of Functional and Clinical Anatomy, Friedrich-Alexander University Erlangen-Nürnberg (FAU), Universitätsstr. 19, 91054 Erlangen, Germany; (J.F.); (J.W.); (E.S.); (F.G.)
| | - Kolja Gelse
- Department of Trauma Surgery and Orthopaedic Surgery, Hospital Traunstein, 83278 Traunstein, Germany;
| | - Stefan Sesselmann
- Institute for Medical Engineering, University of Applied Sciences Amberg-Weiden, 92224 Amberg, Germany;
| | - Michael Tsokos
- Institute of Legal Medicine and Forensic Sciences, Charité-Universitätsmedizin Berlin, 10117 Berlin, Germany;
| | - Eileen Socher
- Institute of Functional and Clinical Anatomy, Friedrich-Alexander University Erlangen-Nürnberg (FAU), Universitätsstr. 19, 91054 Erlangen, Germany; (J.F.); (J.W.); (E.S.); (F.G.)
| | - Fabian Garreis
- Institute of Functional and Clinical Anatomy, Friedrich-Alexander University Erlangen-Nürnberg (FAU), Universitätsstr. 19, 91054 Erlangen, Germany; (J.F.); (J.W.); (E.S.); (F.G.)
| | - Thomas Müller
- Department of Child and Adolescent Medicine, Pediatrics I, Pediatric Rheumatology, Martin Luther University Halle-Wittenberg (MLU), 06108 Halle (Saale), Germany;
| | - Friedrich Paulsen
- Institute of Functional and Clinical Anatomy, Friedrich-Alexander University Erlangen-Nürnberg (FAU), Universitätsstr. 19, 91054 Erlangen, Germany; (J.F.); (J.W.); (E.S.); (F.G.)
- Correspondence: (M.S.); (F.P.)
| |
Collapse
|
|
2
|
Hofmann SR, Kubasch AS, Range U, Laass MW, Morbach H, Girschick HJ, Hedrich CM. Serum biomarkers for the diagnosis and monitoring of chronic recurrent multifocal osteomyelitis (CRMO). Rheumatol Int 2016; 36:769-79. [DOI: 10.1007/s00296-016-3466-7] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2015] [Accepted: 03/12/2016] [Indexed: 11/29/2022]
|
|
3
|
Abstract
Juvenile idiopathic arthritis (JIA) is the most common chronic rheumatic disease in children and an important cause of short-term and long-term disability. Gene changes in the immune system can predispose to JIA and regulation of the immune system is crucial in the pathogenesis. The goal of therapy is complete disease control using disease-modifying antirheumatic drugs (DMARDS). Activated T-cells may play a role in the immunopathology of JIA. Therefore, targeting T-cell activation is a rational approach for the treatment of JIA. Abatacept (ABA), a selective co-stimulation modulator, has been shown to be effective in treating all JIA subtypes and is generally safe and well tolerated in JIA. Neutralizing antibodies were found in 6/9 (67%) of seropositive patients, but anti-ABA antibodies did not appear to be associated with disease flare, serious adverse events, acute infusional adverse events, hypersensitivity, autoimmune disorders, or low ABA serum concentrations. Anti-ABA antibodies were more frequent when ABA concentrations were below therapeutic levels. Although information on ABA in JIA is still limited, available data suggest a potential role in difficult to treat JIA patients previously treated with other biologic agents and for non-responders to TNF-blockade.
Collapse
|
|
4
|
|