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Tsuchiya M, Ohashi Y, Fukushima K, Okuda Y, Suto A, Matsui T, Kodera Y, Sato M, Tsukada A, Inoue G, Takaso M, Uchida K. Fibrocyte Phenotype of ENTPD1+CD55+ Cells and Its Association with Pain in Osteoarthritic Synovium. Int J Mol Sci 2024; 25:4085. [PMID: 38612896 PMCID: PMC11012446 DOI: 10.3390/ijms25074085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 03/29/2024] [Accepted: 04/04/2024] [Indexed: 04/14/2024] Open
Abstract
Osteoarthritis (OA) is a prevalent degenerative joint disorder characterized by cartilage erosion, structural changes, and inflammation. Synovial fibroblasts play a crucial role in OA pathophysiology, with abnormal fibroblastic cells contributing significantly to joint pathology. Fibrocytes, expressing markers of both hematopoietic and stromal cells, are implicated in inflammation and fibrosis, yet their marker and role in OA remain unclear. ENTPD1, an ectonucleotidase involved in purinergic signaling and expressed in specific fibroblasts in fibrotic conditions, led us to speculate that ENTPD1 plays a role in OA pathology by being expressed in fibrocytes. This study aimed to investigate the phenotype of ENTPD1+CD55+ and ENTPD1-CD55+ synovial fibroblasts in OA patients. Proteomic analysis revealed a distinct molecular profile in ENTPD1+CD55+ cells, including the upregulation of fibrocyte markers and extracellular matrix-related proteins. Pathway analysis suggested shared mechanisms between OA and rheumatoid arthritis. Correlation analysis revealed an association between ENTPD1+CD55+ fibrocytes and resting pain in OA. These findings highlight the potential involvement of ENTPD1 in OA pain and suggest avenues for targeted therapeutic strategies. Further research is needed to elucidate the underlying molecular mechanisms and validate potential therapeutic targets.
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Affiliation(s)
- Maho Tsuchiya
- Department of Orthopaedic Surgery, Kitasato University School of Medicine, Sagamihara 252-0374, Japan; (M.T.); (Y.O.); (K.F.); (A.T.); (G.I.); (M.T.)
| | - Yoshihisa Ohashi
- Department of Orthopaedic Surgery, Kitasato University School of Medicine, Sagamihara 252-0374, Japan; (M.T.); (Y.O.); (K.F.); (A.T.); (G.I.); (M.T.)
| | - Kensuke Fukushima
- Department of Orthopaedic Surgery, Kitasato University School of Medicine, Sagamihara 252-0374, Japan; (M.T.); (Y.O.); (K.F.); (A.T.); (G.I.); (M.T.)
| | - Yusei Okuda
- Department of Physics, School of Science, Kitasato University, Sagamihara 252-0373, Japan; (Y.O.); (A.S.); (T.M.); (Y.K.)
| | - Arisa Suto
- Department of Physics, School of Science, Kitasato University, Sagamihara 252-0373, Japan; (Y.O.); (A.S.); (T.M.); (Y.K.)
| | - Takashi Matsui
- Department of Physics, School of Science, Kitasato University, Sagamihara 252-0373, Japan; (Y.O.); (A.S.); (T.M.); (Y.K.)
- Center for Disease Proteomics, School of Science, Kitasato University, Sagamihara 252-0373, Japan
| | - Yoshio Kodera
- Department of Physics, School of Science, Kitasato University, Sagamihara 252-0373, Japan; (Y.O.); (A.S.); (T.M.); (Y.K.)
- Center for Disease Proteomics, School of Science, Kitasato University, Sagamihara 252-0373, Japan
| | - Masashi Sato
- Department of Immunology, Kitasato University School of Medicine, Sagamihara 252-0374, Japan;
| | - Ayumi Tsukada
- Department of Orthopaedic Surgery, Kitasato University School of Medicine, Sagamihara 252-0374, Japan; (M.T.); (Y.O.); (K.F.); (A.T.); (G.I.); (M.T.)
| | - Gen Inoue
- Department of Orthopaedic Surgery, Kitasato University School of Medicine, Sagamihara 252-0374, Japan; (M.T.); (Y.O.); (K.F.); (A.T.); (G.I.); (M.T.)
| | - Masashi Takaso
- Department of Orthopaedic Surgery, Kitasato University School of Medicine, Sagamihara 252-0374, Japan; (M.T.); (Y.O.); (K.F.); (A.T.); (G.I.); (M.T.)
| | - Kentaro Uchida
- Department of Orthopaedic Surgery, Kitasato University School of Medicine, Sagamihara 252-0374, Japan; (M.T.); (Y.O.); (K.F.); (A.T.); (G.I.); (M.T.)
- Research Institute, Shonan University of Medical Sciences, Chigasaki 253-0083, Japan
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Mahmoud DE, Kaabachi W, Sassi N, Tarhouni L, Rekik S, Jemmali S, Sehli H, Kallel-Sellami M, Cheour E, Laadhar L. The synovial fluid fibroblast-like synoviocyte: A long-neglected piece in the puzzle of rheumatoid arthritis pathogenesis. Front Immunol 2022; 13:942417. [PMID: 35990693 PMCID: PMC9388825 DOI: 10.3389/fimmu.2022.942417] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 07/13/2022] [Indexed: 12/14/2022] Open
Abstract
Rheumatoid arthritis (RA) is a systemic autoimmune disease during which fibroblast-like synoviocytes (FLS) contribute to both joint inflammation and destruction. FLS represent the core component of the synovial membrane. Following inflammation of this membrane, an effusion of cell-rich synovial fluid (SF) fills the joint cavity. Unlikely, SF has been shown to contain fibroblasts with some shared phenotypic traits with the synovial membrane FLS. These cells are called SF-FLS and their origin is still unclear. They are either brought into the synovium via migration through blood vessels, or they could originate within the synovium and exist in projections of the synovial membrane. SF-FLS function and phenotype are poorly documented compared to recently well-characterized synovial membrane FLS subsets. Furthermore, no study has yet reported a SF-FLS single-cell profiling analysis. This review will discuss the origin and cellular characteristics of SF-FLS in patients with RA. In addition, recent advances on the involvement of SF-FLS in the pathogenesis of RA will be summarized. Current knowledge on possible relationships between SF-FLS and other types of fibroblasts, including synovial membrane FLS, circulating fibrocytes, and pre- inflammatory mesenchymal (PRIME) cells will also be addressed. Finally, recent therapeutic strategies employed to specifically target SF-FLS in RA will be discussed.
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Affiliation(s)
- Dorra Elhaj Mahmoud
- Immuno-Rheumatology Research Laboratory, Rheumatology Department, La Rabta Hospital, University of Tunis-El Manar, Tunis, Tunisia
- Unité de Recherche Infections Respiratoires Fongiques (IRF), Structure Fédérative de Recherche “Interactions Cellulaires et Applications Thérapeutiques” (SFR ICAT), Université d’Angers, Angers, France
| | - Wajih Kaabachi
- Immuno-Rheumatology Research Laboratory, Rheumatology Department, La Rabta Hospital, University of Tunis-El Manar, Tunis, Tunisia
| | - Nadia Sassi
- Immuno-Rheumatology Research Laboratory, Rheumatology Department, La Rabta Hospital, University of Tunis-El Manar, Tunis, Tunisia
| | - Lamjed Tarhouni
- Department of Hand and Reconstructive Surgery, Kassab Institute of Traumatic and Orthopedic Surgery, Tunis, Tunisia
| | - Sonia Rekik
- Immuno-Rheumatology Research Laboratory, Rheumatology Department, La Rabta Hospital, University of Tunis-El Manar, Tunis, Tunisia
| | - Samia Jemmali
- Immuno-Rheumatology Research Laboratory, Rheumatology Department, La Rabta Hospital, University of Tunis-El Manar, Tunis, Tunisia
| | - Hela Sehli
- Immuno-Rheumatology Research Laboratory, Rheumatology Department, La Rabta Hospital, University of Tunis-El Manar, Tunis, Tunisia
| | - Maryam Kallel-Sellami
- Immuno-Rheumatology Research Laboratory, Rheumatology Department, La Rabta Hospital, University of Tunis-El Manar, Tunis, Tunisia
| | - Elhem Cheour
- Immuno-Rheumatology Research Laboratory, Rheumatology Department, La Rabta Hospital, University of Tunis-El Manar, Tunis, Tunisia
| | - Lilia Laadhar
- Immuno-Rheumatology Research Laboratory, Rheumatology Department, La Rabta Hospital, University of Tunis-El Manar, Tunis, Tunisia
- *Correspondence: Lilia Laadhar,
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