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Mei D, Zhang T, Liu R, Wang P, Hu L, Xu L, Ge J, Zhang X, Wang H, Xue Z, Liang F, Yu Q, Wei W, Zhang L. hIgD-Fc-Ig fusion protein regulates T cell functions by inhibiting TCR signaling pathway in adjuvant arthritis rats. Int Immunopharmacol 2023; 119:110154. [PMID: 37062257 DOI: 10.1016/j.intimp.2023.110154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 04/01/2023] [Accepted: 04/03/2023] [Indexed: 04/18/2023]
Abstract
This study aimed to investigate the effect of hIgD-Fc-Ig on TCR-Lck-Erk activated by IgD in adjuvant arthritis (AA) rats. Wistar rats were divided into the normal, AA model, hIgD-Fc-Ig (1 mg/kg, 3 mg/kg and 9 mg/kg) and Etanercept (3 mg/kg) groups. The overall index of AA rats was measured every 3 days. The pathologic examination of knee joints and the proliferation of the spleen and thymus of AA rats were detected by H&E staining and CCK-8. The blood flow signal of knee joints of experimental rats was examined by US. The articular bone injury was detected by X-ray. The changes in PBMCs and spleen T cell subsets were detected by flow cytometry. The expression of CD3ε, p-Lck, p-Zap70, Ras, and p-Erk in rat spleens was detected by immunofluorescence and WB. Rat spleen T cells or Jurkat cells treated by IgD to observe the effect of hIgD-Fc-Ig on TCR and its downstream protein expression. The results showed that hIgD-Fc-Ig had a therapeutic effect on AA rats by reducing the secondary inflammation, improving pathological changes. hIgD-Fc-Ig can reduce the ratio of Th cells of PBMCs of AA rats, the ratio of Th, Th1, Th17 cells and increase the ratio of Th2, Treg cells of AA rat spleens. hIgD-Fc-Ig could down-regulate the expression of CD3ε, p-Lck, p-Zap70, Ras, p-Erk in vivo or in vitro. In conclusion, hIgD-Fc-Ig could alleviate the symptoms of AA rats and regulate T cells through TCR-Lck-Erk signaling pathway and maybe a new promising biological agent for RA.
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Affiliation(s)
- Dan Mei
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Hefei 230032, China
| | - Tianjing Zhang
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Hefei 230032, China
| | - Ruijin Liu
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Hefei 230032, China
| | - Pan Wang
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Hefei 230032, China
| | - Ling Hu
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Hefei 230032, China
| | - Li Xu
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Hefei 230032, China
| | - Jinru Ge
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Hefei 230032, China
| | - Xianzheng Zhang
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Hefei 230032, China; Department of Oncology, The First Affiliated Hospital of Anhui Medical University, Hefei 230032, China
| | - Han Wang
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Hefei 230032, China
| | - Ziyang Xue
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Hefei 230032, China
| | - Faqin Liang
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Hefei 230032, China
| | - Qianqian Yu
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Hefei 230032, China
| | - Wei Wei
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Hefei 230032, China.
| | - Lingling Zhang
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Hefei 230032, China.
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Bao Z, Zhao Y, Chen S, Chen X, Xu X, Wei L, Xiong M. Ultrasound Versus Contrast-Enhanced Magnetic Resonance Imaging for Subclinical Synovitis and Tenosynovitis: A Diagnostic Performance Study. Clinics (Sao Paulo) 2020; 75:e1500. [PMID: 31967284 PMCID: PMC6963161 DOI: 10.6061/clinics/2020/e1500] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2019] [Accepted: 11/04/2019] [Indexed: 01/21/2023] Open
Abstract
OBJECTIVES Radiographic manifestations of synovitis (e.g., erosions) can be observed only in the late stage of rheumatoid arthritis. Ultrasound is a noninvasive, cheap, and widely available technique that enables the evaluation of inflammatory changes in the peripheral joint. In the same way, dynamic contrast-enhanced magnetic resonance imaging (MRI) enables qualitative and quantitative measurements. The objectives of the study were to compare the sensitivity and accuracy of ultrasound in detecting subclinical synovitis and tenosynovitis with those of contrast-enhanced MRI. METHODS The ultrasonography and contrast-enhanced MRI findings of the wrist, metacarpophalangeal, and proximal interphalangeal joints (n=450) of 75 patients with a history of joint pain and morning stiffness between 6 weeks and 2 years were reviewed. The benefits score was evaluated for each modality. RESULTS The ultrasonic findings showed inflammation in 346 (77%) joints, while contrast-enhanced MRI found signs of early rheumatoid arthritis in 372 (83%) joints. The sensitivities of ultrasound and contrast-enhanced MRI were 0.795 and 0.855, respectively, and the accuracies were 0.769 and 0.823, respectively. Contrast-enhanced MRI had a likelihood of 0-0.83 and ultrasound had a likelihood of 0-0.77 for detecting synovitis and tenosynovitis at one time. The two imaging modalities were equally competitive for detecting synovitis and tenosynovitis (p=0.055). CONCLUSION Ultrasound could be as sensitive and specific as contrast-enhanced MRI for the diagnosis of subclinical synovitis and tenosynovitis.
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Affiliation(s)
- Zhongtao Bao
- Department of Ultrasound, First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, 350000, China
- *Corresponding author. E-mail:
| | - Yanchun Zhao
- Department of Ultrasound, Fujian Provincial Hospital, Fuzhou, Fujian, 350000, China
| | - Shuqiang Chen
- Department of Ultrasound, First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, 350000, China
| | - Xiaoyu Chen
- Department of Ultrasound, First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, 350000, China
| | - Xiang Xu
- Department of Ultrasound, First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, 350000, China
| | - Linglin Wei
- Department of Ultrasound, First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, 350000, China
| | - Meilian Xiong
- Department of Imaging, First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, 350000, China
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Turan A, Çeltikçi P, Tufan A, Öztürk MA. Basic radiological assessment of synovial diseases: a pictorial essay. Eur J Rheumatol 2016. [PMID: 28638696 DOI: 10.5152/eurjrheum.2015.0032] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The synovium is a specialized tissue lining the synovial joints, bursae, and tendon sheaths of the body. It is affected by various localized or systemic disorders. Synovial diseases can be classified as inflammatory, infectious, degenerative, traumatic, hemorrhagic, and neoplastic. Damage in other intraarticular structures, particularly cartilages, generally occurs as a part of pathologic processes involving the synovium, leading to irreversible joint destruction. Imaging has an essential role in the early detection of synovial diseases prior to irreversible joint damage. Obtaining and understanding characteristic imaging findings of synovial diseases enables a proper diagnosis for early treatment. This article focuses on the recent literature that is related with the role of imaging in synovial disease.
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Affiliation(s)
- Aynur Turan
- Department of Radiology, Dışkapı Yıldırım Beyazıt Training and Research Hospital Ankara, Turkey
| | - Pınar Çeltikçi
- Department of Radiology, Dışkapı Yıldırım Beyazıt Training and Research Hospital Ankara, Turkey
| | - Abdurrahman Tufan
- Department of Internal Medicine, Division of Rheumatology, Gazi University Hospital, Ankara, Turkey
| | - Mehmet Akif Öztürk
- Department of Internal Medicine, Division of Rheumatology, Gazi University Hospital, Ankara, Turkey
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Buitinga L, Braakman-Jansen LMA, Taal E, van de Laar MAFJ. Future expectations and worst-case future scenarios of patients with rheumatoid arthritis: a focus group study. Musculoskeletal Care 2012; 10:240-247. [PMID: 22718578 DOI: 10.1002/msc.1026] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
OBJECTIVE Over the past 15 years, developments in the treatment of rheumatoid arthritis (RA) have resulted in better clinical outcomes. The aim of the present study was to explore how patients think their RA will influence their lives in the future, and which of these future expectations would be the worst for them to experience. METHODS A focus group study was performed in 16 RA patients. Three groups were heterogeneously composed, based on age group (18-40, 40-65, 65-80), gender and having a paid job or not. Patients were asked about the expected future impact of RA and worst-case future scenarios. Transcripts were coded by three researchers under the main components of the International Classification of Functioning, Disability and Health. The codes were discussed until agreement was reached about all codes. RESULTS Dependency on others, increasing dependency on medication, inability to walk, activity limitations and worsening fatigue were mentioned as worst-case future scenarios. Further concerns were raised about the acceptance of RA and possible disappearance of physicians' expertise. Nevertheless, hope and positive feelings were expressed toward continuous medication improvements. CONCLUSION The present study provided insight into RA patients' future expectations and worst-case future scenarios. The results may be of help in the development of support interventions to put concerns and worst-case future scenarios into a realistic perspective. Furthermore, insight into patients' worst-case future scenarios could be used to improve the validity and responsiveness of the Time Trade-Off, an instrument to measure preference-based health-related quality of life.
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Affiliation(s)
- Laurien Buitinga
- Institute for Innovation and Governance Studies, University of Twente, Enschede, The Netherlands.
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Abstract
OBJECTIVE Rheumatoid arthritis is a predominantly joint-based disease affecting approximately 1% of the world's population. This article will address the increasing use of both ultrasound and MRI in the diagnosis and monitoring of rheumatoid arthritis and will highlight both the strengths and weaknesses of these two imaging modalities, with particular reference to bone erosions and synovitis. CONCLUSION Because they can detect early disease, both ultrasound and MRI will become increasingly important in the diagnosis and management of rheumatoid arthritis. Future studies with increased patient numbers will be necessary if one of these two modalities is to emerge as a clear winner as the imaging modality of choice.
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Tayar JH, Suarez-Almazor ME. New understanding and approaches to treatment in rheumatoid arthritis. Br Med Bull 2010; 94:201-14. [PMID: 20200013 DOI: 10.1093/bmb/ldq007] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Rheumatoid arthritis (RA) is the most common autoimmune inflammatory polyarthritis. Significant advances in the understanding of its pathogenesis have led in the past two decades to major advancement in its therapy. We used data from articles in Cochrane Database of Systematic Reviews on 'rheumatoid arthritis', meta-analyses and randomized controlled trials on adult RA (age >19 years) published in English within the past 5 years and identified in PubMed, and other key papers on management of RA. Appropriate, early and aggressive therapy is required for confirmed active cases of RA. The choice of disease-modifying drugs and different combinations, especially the newer biologic agents in regards of their early and long-term usage remains debated because of high costs and long-term safety concerns. Development of newer biologic agents working on different pathways of inflammation is underway in different stages. It remains to be determined how and when each of these agents will fit in the overall management of RA. Furthermore, post-marketing surveillance of the safety and response sustainability of these drugs is warranted.
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Affiliation(s)
- Jean H Tayar
- Department of General Internal Medicine, AT and EC, Section of Rheumatology, The University of Texas M D Anderson Cancer Center, Houston, TX 77030, USA.
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