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El Shikh MEM, El Sayed R, Aly NAR, Prediletto E, Hands R, Fossati-Jimack L, Bombardieri M, Lewis MJ, Pitzalis C. Follicular dendritic cell differentiation is associated with distinct synovial pathotype signatures in rheumatoid arthritis. Front Med (Lausanne) 2022; 9:1013660. [PMID: 36465908 PMCID: PMC9709129 DOI: 10.3389/fmed.2022.1013660] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Accepted: 10/24/2022] [Indexed: 11/17/2022] Open
Abstract
Follicular dendritic cells (FDCs) fundamentally contribute to the formation of synovial ectopic lymphoid-like structures in rheumatoid arthritis (RA) which is associated with poor clinical prognosis. Despite this critical role, regulation of FDC development in the RA synovium and its correlation with synovial pathotype differentiation remained largely unknown. Here, we demonstrate that CNA.42+ FDCs distinctively express the pericyte/fibroblast-associated markers PDGFR-β, NG2, and Thy-1 in the synovial perivascular space but not in established follicles. In addition, synovial RNA-Seq analysis revealed that expression of the perivascular FDC markers was strongly correlated with PDGF-BB and fibroid synovitis, whereas TNF-α/LT-β was significantly associated with lymphoid synovitis and expression of CR1, CR2, and FcγRIIB characteristic of mature FDCs in lymphoid follicles. Moreover, PDGF-BB induced CNA.42+ FDC differentiation and CXCL13 secretion from NG2+ synovial pericytes, and together with TNF-α/LT-β conversely regulated early and late FDC differentiation genes in unsorted RA synovial fibroblasts (RASF) and this was confirmed in flow sorted stromal cell subsets. Furthermore, RASF TNF-αR expression was upregulated by TNF-α/LT-β and PDGF-BB; and TNF-α/LT-β-activated RASF retained ICs and induced B cell activation in in vitro germinal center reactions typical of FDCs. Additionally, FDCs trapped peptidyl citrulline, and strongly correlated with IL-6 expression, and plasma cell, B cell, and T cell infiltration of the RA synovium. Moreover, synovial FDCs were significantly associated with RA disease activity and radiographic features of tissue damage. To the best of our knowledge, this is the first report describing the reciprocal interaction between PDGF-BB and TNF-α/LT-β in synovial FDC development and evolution of RA histological pathotypes. Selective targeting of this interplay could inhibit FDC differentiation and potentially ameliorate RA in clinically severe and drug-resistant patients.
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Saraiva F. Ultrasound-Guided Synovial Biopsy: A Review. Front Med (Lausanne) 2021; 8:632224. [PMID: 33968950 PMCID: PMC8100029 DOI: 10.3389/fmed.2021.632224] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Accepted: 02/22/2021] [Indexed: 11/29/2022] Open
Abstract
Ultrasound-guided synovial biopsy is a safe, well-tolerated, and effective method to collect good-quality synovial tissue from all types of joints for clinical and research purposes. Although synovial biopsy cannot be used to distinguish between types of inflammatory rheumatic disease, analysis of synovial tissue has led to remarkable advances in the understanding of the pathobiology of rheumatoid arthritis and other inflammatory rheumatic diseases. Synovitis is the hallmark of these diseases; hence, accessing the core of the pathological process, synovial tissue, provides an opportunity to gather information with potential diagnostic and prognostic utility.
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Affiliation(s)
- Fernando Saraiva
- Serviço de Reumatologia, Hospital de Santa Maria, Centro Hospitalar e Universitário de Lisboa Norte, Lisbon, Portugal.,Unidade de Investigação em Reumatologia, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
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He SD, Huang SG, Zhu HJ, Luo XG, Liao KH, Zhang JY, Tan N, Li DY. Oridonin suppresses autophagy and survival in rheumatoid arthritis fibroblast-like synoviocytes. PHARMACEUTICAL BIOLOGY 2020; 58:146-151. [PMID: 31971852 PMCID: PMC7034059 DOI: 10.1080/13880209.2020.1711783] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 12/23/2019] [Accepted: 12/31/2019] [Indexed: 06/10/2023]
Abstract
Context: Oridonin exhibits various pharmacological and physiological activities, including antioxidant, antibacterial, anti-inflammatory, pro-apoptotic, anticancer and neurological effects. However, its role in rheumatoid arthritis (RA) is yet to be revealed.Objective: We evaluated the effects of oridonin on the survival and autophagy of RA-fibroblast-like synoviocytes (FLSs).Materials and methods: RA-FLSs were treated with oridonin at serial concentrations of 0, 2, 4, 6, 8 and 10 µg/mL for 24, 48 and 72 h. Then, cell proliferation and apoptosis were measured. A GFP-LC3 plasmid was transfected into the cells to determine autophagy.Results: Oridonin suppressed RA-FLS proliferation in a dose-dependent manner. The half maximal inhibitory concentrations (IC50) of oridonin at 24, 48 and 72 h were 8.28, 7.88 and 8.35 µg/mL, respectively. Treatment with oridonin for 24 h increased apoptosis by 4.1%, and increased the protein levels of Bax and cleaved caspase-3 but significantly decreased the levels of IL-1β in the culture supernatant (p < 0.05). In addition, 6 h of oridonin treatment significantly decreased the number of GFP-LC3 punctate dots and inhibited the protein levels of ATG5 and Beclin1 by 80.01% and 42.12%, respectively. Chloroquine (CQ) significantly reinforced the effects of oridonin on inhibition of autophagy, suppression of proliferation, and induction of apoptosis in RA-FLSs (p < 0.05).Conclusions: Our results indicate that treatment with oridonin in combination with CQ inhibits autophagy and cell proliferation and induces apoptosis in RA-FLSs more effectively than treatment oridonin alone. This finding indicates that oridonin is a potential therapeutic agent for RA.
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Affiliation(s)
- Shou-Di He
- Traditional Chinese Medicine Department of Rheumatism, Huazhong University of Science and Techology Union Shenzhen Hospital, Shenzhen Nanshan People's Hospital, Shenzhen, China
| | - Sheng-Guang Huang
- Traditional Chinese Medicine Department of Rheumatism, Huazhong University of Science and Techology Union Shenzhen Hospital, Shenzhen Nanshan People's Hospital, Shenzhen, China
| | - Hui-Jun Zhu
- Traditional Chinese Medicine Department of Rheumatism, Huazhong University of Science and Techology Union Shenzhen Hospital, Shenzhen Nanshan People's Hospital, Shenzhen, China
| | - Xiao-Guang Luo
- Traditional Chinese Medicine Department of Rheumatism, Huazhong University of Science and Techology Union Shenzhen Hospital, Shenzhen Nanshan People's Hospital, Shenzhen, China
| | - Kang-Han Liao
- Traditional Chinese Medicine Department of Rheumatism, Huazhong University of Science and Techology Union Shenzhen Hospital, Shenzhen Nanshan People's Hospital, Shenzhen, China
| | - Jie-Yao Zhang
- Traditional Chinese Medicine Department of Rheumatism, Huazhong University of Science and Techology Union Shenzhen Hospital, Shenzhen Nanshan People's Hospital, Shenzhen, China
| | - Ning Tan
- Traditional Chinese Medicine Department of Rheumatism, Huazhong University of Science and Techology Union Shenzhen Hospital, Shenzhen Nanshan People's Hospital, Shenzhen, China
| | - De-Yu Li
- Traditional Chinese Medicine Department of Rheumatism, Huazhong University of Science and Techology Union Shenzhen Hospital, Shenzhen Nanshan People's Hospital, Shenzhen, China
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Devaraj NK. The Atypical Presentation of Rheumatoid Arthritis in an Elderly Woman: A Case Report. Ethiop J Health Sci 2019; 29:957-958. [PMID: 30700964 PMCID: PMC6341435 DOI: 10.4314/ejhs.v29i1.18] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
The diagnosis of rheumatologic problem can be difficult, especially if not all the diagnostic criteria or typical clinical features are seen. This includes conditions such as rheumatoid arthritis which needs early diagnosis to start disease modifying drugs (DMARDs) which can improve the prognosis and prevent further joint erosion and organ damage. This case report focused on a similar scenario in an elderly woman initially thought to have osteoarthritis but was diagnosed later with rheumatoid arthritis which brought much relief to her current predicament.
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Affiliation(s)
- Navin Kumar Devaraj
- Department of Family Medicine, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia
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Robert M, Miossec P. IL-17 in Rheumatoid Arthritis and Precision Medicine: From Synovitis Expression to Circulating Bioactive Levels. Front Med (Lausanne) 2019; 5:364. [PMID: 30693283 PMCID: PMC6339915 DOI: 10.3389/fmed.2018.00364] [Citation(s) in RCA: 88] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Accepted: 12/24/2018] [Indexed: 12/17/2022] Open
Abstract
Interleukin (IL)-17A has a direct contribution in early induction and late chronic stages of various inflammatory diseases. In vitro and in vivo experiments have first characterized its local effects on different cell types and then its systemic effects. For instance, IL-17 axis is now identified as a key driver of psoriasis through its effects on keratinocytes. Similar observations apply for rheumatoid arthritis (RA) where IL-17A triggers changes in the synovium that lead to synovitis and maintain local inflammation. These results have prompted the development of biologics to target this cytokine. However, while convincing studies are reported on the efficacy of IL-17 inhibitors in psoriasis, there are conflicting results in RA. Patient heterogeneity but also the involvement of mediators that regulate IL-17 function may explain these results. Therefore, new tools and concepts are required to identify patients that could benefit from these IL-17 targeted therapies in RA and the development of predictive biomarkers of response has started with the emergence of various bioassays. Current strategies are also focusing on synovial biopsies that may be used to stratify patients. From local to systemic levels, new approaches are developing and move the field of RA management into the era of precision medicine.
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Affiliation(s)
- Marie Robert
- Department of Clinical Immunology and Rheumatology, Immunogenomics and Inflammation Research Unit EA 4130, University of Lyon 1, Hôpital Edouard Herriot, Lyon, France
| | - Pierre Miossec
- Department of Clinical Immunology and Rheumatology, Immunogenomics and Inflammation Research Unit EA 4130, University of Lyon 1, Hôpital Edouard Herriot, Lyon, France
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Abstract
Background Rheumatoid arthritis is a devastating condition. More so, the diagnosis of seronegative rheumatoid arthritis is often fraught off with much uncertainty and that leads to further suffering to the unfortunate patient. Case Details This is a case of Madam A, who presented with many non-specific symptoms and signs involving many systems which was finally diagnosed as seronegative rheumatoid arthritis. This case explores the challenges in reaching this uncommon diagnosis and how anti-inflammatory drugs can bring a miraculous relief to the patient's suffering. Conclusion The diagnosis of seronegative rheumatoid arthritis often presents a real challenge to the medical practitioner and often requires multiple visits and/or shared multidisciplinary care for confirmation of the diagnosis. Once diagnosed and treated with disease modifying anti- rheumatic drugs, often there is a miraculous relief to the patient's suffering.
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Xu K, Xu P, Yao JF, Zhang YG, Hou WK, Lu SM. Reduced apoptosis correlates with enhanced autophagy in synovial tissues of rheumatoid arthritis. Inflamm Res 2012. [PMID: 23178792 DOI: 10.1007/s00011-012-0572-1] [Citation(s) in RCA: 100] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
OBJECTIVE Defective apoptosis contributes to the massive synovial hyperplasia in rheumatoid arthritis (RA), but the mechanism is largely unknown. To investigate the reasons for the reduced apoptosis in RA synovium, we analyzed autophagy and its relationship to apoptosis in synovial tissues from RA and osteoarthritis (OA) patients. METHODS Synovial tissues were obtained from seven RA and 12 OA patients undergoing knee replacement surgery. Apoptosis was detected by the terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL) assay and staining for p85 fragment of PolyADP-ribose polymerase (PARP). Autophagy was determined by immunoblotting for the autophagic markers Beclin-1 and LC3. MicroRNA-30a (miR-30a), which targets Beclin-1, was measured by real-time RT-PCR. The interplay between autophagy and apoptosis was determined via Spearman's correlation analysis. RESULTS In comparison with OA, the synovial tissues from RA displayed decreased TUNEL-positive nuclei (P < 0.01). In contrast, Beclin-1 and LC3 were overexpressed in the synovial lining layers of RA, which was correlated with decreased levels of miR-30a. Moreover, there was a significant reverse relationship between apoptosis and autophagy in RA synovial tissues (P < 0.01 and r = -0.8937). CONCLUSION The impaired apoptosis in RA synovium might result from increased autophagy, which in turn could be due to the deregulation of miRNA-30a.
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Affiliation(s)
- Ke Xu
- Department of Joint Surgery, Hong Hui Hospital, Xi'an Jiaotong University College of Medicine, Xi'an 710054, China
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Nam J, Villeneuve E, Emery P. The role of biomarkers in the management of patients with rheumatoid arthritis. Curr Rheumatol Rep 2009; 11:371-7. [PMID: 19772833 DOI: 10.1007/s11926-009-0053-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
In recent years, patient outcomes have improved dramatically with the availability of effective treatments for the management of rheumatoid arthritis (RA). RA, however, is a heterogeneous disease with variable disease progression and treatment response. Whereas some patients respond to a single disease-modifying antirheumatic drug, others require more intensive treatment strategies. Assessing disease severity at diagnosis and monitoring disease activity on an individual level would be a more accurate way of tailoring therapy, ensuring optimal treatment for those at greatest risk of disease progression, long-term disability, and joint damage without unnecessary overtreatment. Assessment of disease activity and severity is currently based on a combination of clinical and laboratory parameters that aid treatment decisions. Use of biomarkers may provide a more accurate means of objectively assessing the disease. This article reviews the role of biomarkers in the management of RA.
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Affiliation(s)
- Jackie Nam
- Academic Unit of Musculoskeletal Diseases, 2nd Floor Chapel Allerton Hospital, Chapeltown Road, Leeds LS7 4SA, United Kingdom
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Tampoia M, Brescia V, Falappone P, Zucano A, Scioscia C, Fontana A, Iannone F, Di Serio F, Lapadula G. Response of Cartilage Oligomeric Matrix Protein to Monoclonal Antibody Drugs in Patients with Rheumatoid Arthritis. Lab Med 2009. [DOI: 10.1309/lmv894xjrqejmkab] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Raza K, Filer A. Predicting the development of RA in patients with early undifferentiated arthritis. Best Pract Res Clin Rheumatol 2009; 23:25-36. [PMID: 19233043 DOI: 10.1016/j.berh.2008.08.001] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The rapidity with which bone and cartilage damage occurs in patients with rheumatoid arthritis (RA), and the increasing body of evidence for the effectiveness of early intervention in RA, mean that there is a great need for approaches to accurately predict the development of RA in patients with early undifferentiated arthritis. We will review developments in the prediction of outcome on the basis of clinical and laboratory features, including measures of anti-citrullinated protein/peptide antibody status. Although accurate predictions are possible in the majority of patients using recently developed predictive algorithms which utilize clinical and serological variables, there remains a group of patients for whom it is very difficult to predict the development of RA. The utility of new strategies for prediction will be discussed, including recently discovered genetic associations of RA, an assessment of material from the primary site of pathology (the joint), and assessment using the highly sensitive imaging modalities of ultrasound and magnetic resonance imaging.
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Affiliation(s)
- Karim Raza
- Rheumatology Research Group, Division of Immunity and Infection, Institute of Biomedical Research, MRC Centre for Immune Regulation, University of Birmingham, Birmingham, UK.
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Scirè CA, Epis O, Codullo V, Humby F, Morbini P, Manzo A, Caporali R, Pitzalis C, Montecucco C. Immunohistological assessment of the synovial tissue in small joints in rheumatoid arthritis: validation of a minimally invasive ultrasound-guided synovial biopsy procedure. Arthritis Res Ther 2008; 9:R101. [PMID: 17903238 PMCID: PMC2212566 DOI: 10.1186/ar2302] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2007] [Revised: 09/04/2007] [Accepted: 09/28/2007] [Indexed: 12/13/2022] Open
Abstract
The aim of the present study was to perform an immunohistological assessment of the synovial tissue from involved small joints in rheumatoid arthritis (RA) and to explore the reliability of a mini-invasive ultrasound (US)-guided technique of small joint synovial biopsy for the histopathological assessment. Synovial tissue collected during arthrotomic surgery of small joints in nine patients served as the gold standard for the validation of the histological assessment. Small hand-joint synovial biopsies from an additional nine patients with erosive RA were obtained by a mini-invasive US-guided procedure, performed percutaneously by the portal and rigid forceps technique. Using digital image analysis, the area fractions of synovial macrophages (CD68 cells), T cells (CD3 cells) and B cells (CD20 cells) were measured in all high-power fields of every sample at different cutting levels. The representative sample was defined as the minimal number of high-power fields whose mean area fraction would reflect the overall mean area fraction within a percentage mean difference of 10%. For each patient, a range of three to five large samples for surgical biopsies and a range of 8–12 samples for US-guided biopsies were collected and analysed. In arthrotomic samples, the analysis of a randomly selected tissue area of 2.5 mm2 was representative of the overall value for CD68, CD3 and CD20 cells. US-guided samples allowed histological evaluation in 100% of cases, with a mean valid area of 18.56 mm2 (range 7.29–38.28 mm2). The analysis of a cumulative area of 2.5 mm2 from eight randomly selected sections (from different samples or from different cutting levels) allowed to reduce the percentage mean difference to less than 10% for CD68, CD3 and CD20 cells. In conclusion, US-guided synovial biopsy represents a reliable tool for the assessment of the histopathological features of RA patients with a mini-invasive approach.
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Affiliation(s)
- Carlo Alberto Scirè
- Chair and Division of Rheumatology, University of Pavia, Fondazione IRCCS Policlinico San Matteo, Piazzale Golgi 12, I 27100 Pavia, Italy
| | - Oscar Epis
- Chair and Division of Rheumatology, University of Pavia, Fondazione IRCCS Policlinico San Matteo, Piazzale Golgi 12, I 27100 Pavia, Italy
| | - Veronica Codullo
- Chair and Division of Rheumatology, University of Pavia, Fondazione IRCCS Policlinico San Matteo, Piazzale Golgi 12, I 27100 Pavia, Italy
| | - Frances Humby
- Centre for Experimental Medicine and Rheumatology, 2floor John Vane Science Centre, William Harvey Research Institute, St Bartholomew's and Royal London School of Medicine. Charter House Square, London, EC1M6BQ, UK
| | - Patrizia Morbini
- Department of Pathology, University of Pavia, Fondazione IRCCS Policlinico San Matteo, Piazzale Golgi 12, I 27100 Pavia, Italy
| | - Antonio Manzo
- Centre for Experimental Medicine and Rheumatology, 2floor John Vane Science Centre, William Harvey Research Institute, St Bartholomew's and Royal London School of Medicine. Charter House Square, London, EC1M6BQ, UK
| | - Roberto Caporali
- Chair and Division of Rheumatology, University of Pavia, Fondazione IRCCS Policlinico San Matteo, Piazzale Golgi 12, I 27100 Pavia, Italy
| | - Costantino Pitzalis
- Centre for Experimental Medicine and Rheumatology, 2floor John Vane Science Centre, William Harvey Research Institute, St Bartholomew's and Royal London School of Medicine. Charter House Square, London, EC1M6BQ, UK
| | - Carlomaurizio Montecucco
- Chair and Division of Rheumatology, University of Pavia, Fondazione IRCCS Policlinico San Matteo, Piazzale Golgi 12, I 27100 Pavia, Italy
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