scholarly journals Increased IL-33 in Synovial Fluid and Paired Serum Is Associated with Disease Activity and Autoantibodies in Rheumatoid Arthritis

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Sumei Tang ◽  
Heqing Huang ◽  
Fanlei Hu ◽  
Wei Zhou ◽  
Jianping Guo ◽  
...  
Keyword(s):  
Rheumatoid Arthritis ◽  
Synovial Fluid ◽  
Disease Activity ◽  
Disease Activity Score ◽  
Local Treatment ◽  
Joint Inflammation ◽  
Glucose Phosphate ◽  
Erythrocyte Sedimentation ◽  
Paired Serum ◽  
Tight Correlation

Objectives. IL-33, a newly found cytokine which is involved in joint inflammation, could be blocked by a decoy receptor—sST2. The expression and correlation of IL-33 and sST2 in rheumatoid arthritis (RA) are of great interest.Methods. Synovial fluid (SF) was obtained from 120 RA and 30 osteoarthritis (OA) patients, and paired sera were collected from 54 of these RA patients. The levels of IL-33 and sST2 were measured by ELISA.Results. SF IL-33 was significantly higher in RA than in OA, which was correlated with disease activity score 28, erythrocyte sedimentation rate, rheumatoid factor (RF)-IgM, RF-IgG, glucose phosphate isomerase (GPI), and immunoglobulin. Serum IL-33 was correlated positively with SF IL-33 in RA. Furthermore, it was correlated with RF-IgM and GPI. sST2 was partly detectable in RA (13 out of 54, 24.1%), while not in OA. Serum sST2 in RA had no significant correlation with serum IL-33 or SF IL-33. However, SFs from both RA and OA patients did not express sST2.Conclusions. This study supported that IL-33 played an important role in the local pathogenesis of RA. Considering the tight correlation between IL-33 and clinical features, it may become a new target of local treatment.

scholarly journals Selective Increment of Synovial Soluble TYRO3 Correlates with Disease Severity and Joint Inflammation in Patients with Rheumatoid Arthritis

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Julia Vullings ◽  
Juliana P. Vago ◽  
Claire E. J. Waterborg ◽  
Rogier M. Thurlings ◽  
Marije I. Koenders ◽  
...  
Keyword(s):  
Rheumatoid Arthritis ◽  
Synovial Fluid ◽  
Disease Activity ◽  
Sedimentation Rate ◽  
Systemic Disease ◽  
Joint Inflammation ◽  
Receptor Expression ◽  
Erythrocyte Sedimentation ◽  
Tam Receptors ◽  
Cytokine Levels

Objective. To investigate the role of TAM receptors in rheumatoid arthritis (RA) by determining synovial tissue TAM receptor expression, synovial fluid levels of soluble TAM receptors, and the relationship between soluble TAM receptors, joint inflammation and disease activity. Methods. TAM receptor expression was determined by immunohistochemistry on the synovium from RA and osteoarthritis (OA) patients. Soluble (s) Tyro3, sAxl, sMer, and their ligand Gas6 were measured by ELISA in the synovial fluid of RA (n=28) and OA (n=12) patients and cytokine levels by multiplex immunoassay in RA samples. Correlation analyses were performed among sTAM receptors with local cytokine levels; systemic disease parameters like erythrocyte sedimentation rate (ESR), rheumatoid factor (RF), and anticyclic citrullinated peptide antibodies (ACPA); and disease activity scores (DAS28-ESR) in RA patients. Results. TAM receptors were expressed on different locations in the synovial tissue (lining, sublining, and blood vessels), and a similar expression pattern was observed in RA and OA patients. Synovial fluid sTyro3 and sMer were significantly enhanced in RA compared to OA patients, whereas no significant differences in sAxl and Gas6 levels were found. In RA samples, sTyro3 levels, but not sMer, correlated positively with proinflammatory local cytokines and the systemic factor erythrocyte sedimentation rate. Moreover, stratification analysis showed high sTyro3 levels positively correlated with higher DAS28-ESR and in RF and ACPA double positive RA patients. Conclusion. sTyro3 in the synovial fluid of RA patients correlates with local inflammatory molecules and systemic disease activity. These findings suggest that the reduced negative control of cell activation by TAM receptors due to their shedding in the synovial fluid, mainly sTyro3, favoring joint inflammation in RA patients.

scholarly journals POS0578 CORRELATION BETWEEN EXPRESSION LEVELS OF MIR-155 AND MIR-223 IN SYNOVIAL FLUID AND ULTRASOUND SCORES FOR ACTIVE SYNOVITIS IN RHEUMATOID ARTHRITIS PATIENTS

2021 ◽  
Vol 80 (Suppl 1) ◽  
pp. 522.3-523
Author(s):  
R. Shumnalieva ◽  
D. Kachakova ◽  
R. Kaneva ◽  
Z. Kolarov ◽  
S. Monov
Keyword(s):  
Rheumatoid Arthritis ◽  
Gene Expression ◽  
Clinical Practice ◽  
Synovial Fluid ◽  
Disease Activity ◽  
Power Doppler ◽  
Joint Inflammation ◽  
Expression Levels ◽  
Ultrasound Features ◽  
Local Expression

Background:MicroRNAs (miRNAs) are a class of small, non-coding RNAs that negatively regulate gene expression at posttranscriptional level. In rheumatoid arthritis studies have shown that miRNA are differentially expressed systemically as well as locally in the inflamed joints [1,2]. The correlation between their systemic or local expression levels and scores for disease activity and progression in RA make them possible candidate for biomarkers in the clinical practice.Objectives:To analyze the expression levels of miR-155 and miR-223 in synovial fluid (SF) from RA patients in regard to the ultrasound scores for disease activity.Methods:A total number of 48 RA patients according to the 1987 ACR criteria were included in the study. Expression levels of miR-155 and miR-223 SF were determined by qPCR (SybrGreen technology) and compared to healthy controls (HCs). Relative changes of gene expression levels of the studied miRNAs were calculated by 2-ΔΔCt method. Musculoskeletal ultrasound (MSUS) examination was performed by two independent examiners on ESAOTE, MyLab60 using both grey scale and power Doppler technic. A semi-quantitative assessment of the peripheral joints was performed for detecting joint inflammation and determining the grade of synovial thickening and the degree of vascularization. Ultrasound features for active disease were correlated to the local expression of the studied miRNAs. SPSS was used for statistical analysis.Results:RA SF showed overexpression of miR-155 (in 79.17%, p=1.63x10-4) and of miR-223 (in 79.17%, p=1.64x10-3) when compared to HCs and both miRNAs could be used to differentiate RA patients from HCs (р=8.0х10-5 and р=2.8х10-4, respectively). When we analyzed the correlation between the diagnosis, the expression of miRNAs and the changes on the musculoskeletal ultrasound examination we found a statistically significant correlation between the presence of synovitis and the degree of the power Doppler signal on MSUS and the local expression of miR-223 (p=6.19 x 10-4 and p=0.003, respectively). SF levels of miR-223 correlated also with the degree of synovial hypertrophy on MSUS (p=0.013). The results for miRNA-155 were not statistically significant.Conclusion:The correlation between the local expression of miR-223 and the ultrasound features of active joint inflammation shows that this miRNA might be a better candidate for local disease biomarker than miR-155. Further analysis with larger sets is needed to confirm if altered local miRNA expression could be used in the clinical practice as biomarker for disease activity especially in cases with subclinical synovitis.References:[1]Filková M, Aradi B, Šenolt L, et al. Association of circulating miR-223 and miR-16 with disease activity in patients with early rheumatoid arthritis. ARD, 2014; 73: 1898-1904.[2]Kriegsmann, M., Randau, T.M., Gravius, S. et al. Expression of miR-146a, miR-155, and miR-223 in formalin-fixed paraffin-embedded synovial tissues of patients with rheumatoid arthritis and osteoarthritis. Virchows Arch, 2016; 469, 93–100.Acknowledgements:The study was supported by Grant 14-D/2012 and Grant 60/2013 funded by Medical University-Sofia.Disclosure of Interests:Russka Shumnalieva: None declared, Darina Kachakova: None declared, Radka Kaneva: None declared, Zlatimir Kolarov Speakers bureau: Amgen, Pfizer, Novartis, Abbvie, Roche, Astra-Zeneka, Simeon Monov Speakers bureau: Amgen, Pfizer, Novartis, Abbvie, Roche, Astra-Zeneka

scholarly journals Histamine index and clinical expression of rheumatoid arthritis activity

2010 ◽  
Vol 67 (4) ◽  
pp. 286-290 ◽  
Author(s):  
Aleksandra Tomic-Lucic ◽  
Suzana Pantovic ◽  
Gvozden Rosic ◽  
Zdravko Obradovic ◽  
Mirko Rosic
Keyword(s):  
Rheumatoid Arthritis ◽  
Synovial Fluid ◽  
Disease Activity ◽  
Disease Activity Score ◽  
Joint Destruction ◽  
Clinical Expression ◽  
Histamine Concentration ◽  
Significant Difference ◽  
Rheumatoid Arthritis Activity

Background/Aim. Many arguments prove the pathophysiologic role of histamine in the process of remodeling and joint destruction in rheumatoid arthritis. The aim of our study was to find out if there was a relation between histamine concentration in synovial fluid and blood with clinical expression of disease activity. Methods. Histamine concentration in synovial fluid and blood was determinated in 19 patients with rheumatoid arthritis. Histamine concentration measurement was based on the Shore's fluorometric method. Histamine index (HI) was evaluated as a ratio between histamine concentration in synovial fluid and blood. Disease activity score, DAS 28 (3), with three variables (erythrocyte sedimentation rate, the number of swelled joints and the number of tender joints) was also evaluated. Results. Our results showed that there was no significant difference in concentration of histamine in synovial fluid and blood related to disease activity. However, there was a significant difference in the histamine index which was increased proportionally with disease activity. Conclusion. Our study indicates that histamine index could be useful in estimation of rheumatoid arthritis activity.

scholarly journals Elevated APE1/Ref-1 Levels of Synovial Fluids in Patients with Rheumatoid Arthritis: Reflection of Disease Activity

2021 ◽  
Vol 10 (22) ◽  
pp. 5324
Author(s):  
In Seol Yoo ◽  
Yu-Ran Lee ◽  
Seong Wook Kang ◽  
Jinhyun Kim ◽  
Hee-Kyoung Joo ◽  
...  
Keyword(s):  
Rheumatoid Arthritis ◽  
Disease Activity ◽  
Disease Activity Score ◽  
Inflammatory Responses ◽  
Joint Destruction ◽  
Joint Inflammation ◽  
Joint Disease ◽  
Enzyme Linked Immunosorbent Assay ◽  
Healthy Control ◽  
The Relationship

There is growing evidence that apurinic/apyrimidinic endonuclease 1/redox factor-1 (APE1/Ref-1) regulates inflammatory responses. Rheumatoid arthritis (RA) is an autoimmune disease, which is characterized with synovitis and joint destruction. Therefore, this study was planned to investigate the relationship between APE1/Ref-1 and RA. Serum and synovial fluid (SF) were collected from 46 patients with RA, 45 patients with osteoarthritis (OA), and 30 healthy control (HC) patients. The concentration of APE1/Ref-1 in serum or SF was measured using the sandwich enzyme-linked immunosorbent assay (ELISA). The disease activity in RA patients was measured using the 28-joint disease activity score (DAS28). The serum APE1/Ref-1 levels in RA patients were significantly increased compared to HC and OA patients (0.44 ± 0.39 ng/mL for RA group vs. 0.19 ± 0.14 ng/mL for HC group, p < 0.05 and vs. 0.19 ± 0.11 ng/mL for OA group, p < 0.05). Likewise, the APE1/Ref-1 levels of SF in RA patients were also significantly increased compared to OA patients (0.68 ± 0.30 ng/mL for RA group vs. 0.31 ± 0.12 ng/mL for OA group, p < 0.001). The APE1/Ref-1 concentration in SF of RA patients was positively correlated with DAS28. Thus, APE1/Ref-1 may reflect the joint inflammation and be associated with disease activity in RA.

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