Arthritis Research & Therapy最新文献

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Contribution of inflammation markers and quantitative sensory testing (QST) indices of central sensitisation to rheumatoid arthritis pain 炎症标志物和中枢敏感性定量感觉测试 (QST) 指数对类风湿性关节炎疼痛的影响
IF 4.9 2区 医学
Arthritis Research & Therapy Pub Date : 2024-10-08 DOI: 10.1186/s13075-024-03407-5
Vasileios Georgopoulos, Stephanie Smith, Daniel F. McWilliams, Eamonn Ferguson, Richard Wakefield, Dorothy Platts, Susanne Ledbury, Deborah Wilson, David A. Walsh
{"title":"Contribution of inflammation markers and quantitative sensory testing (QST) indices of central sensitisation to rheumatoid arthritis pain","authors":"Vasileios Georgopoulos, Stephanie Smith, Daniel F. McWilliams, Eamonn Ferguson, Richard Wakefield, Dorothy Platts, Susanne Ledbury, Deborah Wilson, David A. Walsh","doi":"10.1186/s13075-024-03407-5","DOIUrl":"https://doi.org/10.1186/s13075-024-03407-5","url":null,"abstract":"Pain, the primary complaint in rheumatoid arthritis (RA), is multifaceted, and may be driven by inflammatory disease activity and central sensitisation. We aimed to ascertain what proportion of RA pain severity is explained by markers of inflammation and quantitative sensory testing (QST) indices of central sensitisation. This was a cross-sectional analysis of data from individuals with clinically active RA. Pain severity was assessed using numerical rating scales and inflammation via 28-joint Disease Activity Score (DAS28) and Ultrasound (Greyscale, Power Doppler). Pain sensitivity was assessed by ‘static’ (tibialis anterior or brachioradialis pressure pain detection threshold-PPT-TA/PPT-BR) and ‘dynamic’ (temporal summation-TS, conditioned pain modulation-CPM) QST. Bivariate associations used Spearman’s correlation coefficients, and multivariable linear regression models determined relative contributions to pain severity. In bivariate analyses of N = 96 (age 65 ± 10y, 77% females) people with RA, pain severity was significantly associated with inflammation indices (r = 0.20 to 0.55), and CPM (r=-0.26). In multivariable models that included TS, CPM, age, sex, and body mass index, inflammation indices remained significantly associated with pain severity. Multivariable models explained 22 to 27% of pain variance. Heterogeneity was apparent for associations with pain between subscores for pain now, strongest or average over the past 4-weeks. In individuals with clinically active RA, markers of inflammatory disease activity best explain RA pain with only marginal contributions from QST indices of central sensitisation. Although inflammation plays a key role in the experience of RA pain, the greater proportion of pain severity remains unexplained by DAS28 and ultrasound indices of inflammation.","PeriodicalId":8419,"journal":{"name":"Arthritis Research & Therapy","volume":"5 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142384161","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Incidence rate of recurrent cardiovascular events in patients with radiographic axial spondyloarthritis and the effect of tumor necrosis factor inhibitors 放射性轴性脊柱关节炎患者复发心血管事件的发生率及肿瘤坏死因子抑制剂的影响
IF 4.9 2区 医学
Arthritis Research & Therapy Pub Date : 2024-10-04 DOI: 10.1186/s13075-024-03405-7
Oh Chan Kwon, Hye Sun Lee, So Young Jeon, Min-Chan Park
{"title":"Incidence rate of recurrent cardiovascular events in patients with radiographic axial spondyloarthritis and the effect of tumor necrosis factor inhibitors","authors":"Oh Chan Kwon, Hye Sun Lee, So Young Jeon, Min-Chan Park","doi":"10.1186/s13075-024-03405-7","DOIUrl":"https://doi.org/10.1186/s13075-024-03405-7","url":null,"abstract":"Patients with radiographic axial spondyloarthritis (r-axSpA) are at increased risk of incident cardiovascular events. Tumor necrosis factor inhibitors (TNFi) have shown a protective effect against incident cardiovacular events. However, the incidence of recurrent cardiovascular events in patients with r-axSpA with a history of cardiovascular events, and the effect of TNFi on recurrent cardiovascular events remain unclear. We aimed to assess the incidence rate of recurrent cardiovascular events in patients with r-axSpA with a history of cardiovascular events and evaluate the effect of TNFi on the risk of recurrent cardiovascular events. This nationwide cohort study used data from the Korean National Claims Database. Data of patients with r-axSpA who had a history of cardiovascular events after being diagnosed with r-axSpA were extracted from the database. The outcome of interest was the recurrence of cardiovascular events (myocardial infarction or stroke). Patients were followed from the index date (date of the first cardiovascular event) to the date of cardiovascular event recurrence, the last date with claims data, or December 31, 2021, whichever occured first. The incidence rate of recurrent cardiovascular events was calculated. An inverse probability weighted Cox model was used to assess the effect of TNFi exposure on the risk of recurrent cardiovascular events. This study included 413 patients (TNFi non-exposure, n = 338; TNFi exposure, n = 75). The incidence rate of recurrent cardiovascular events was 32 (95% confidence interval [CI] 22–42) per 1,000 person-years (TNFi non-exposure, 36 [95% CI 24–48] per 1,000 person-years; TNFi exposure, 19 [95% CI 2–35] per 1,000 person-years). In the inverse probability weighted Cox model, TNFi exposure was significantly associated with a lower risk of recurrent cardiovascular events (hazard ratio 0.33, 95% CI 0.12–0.94). The incidence rate of recurrent cardiovascular events in patients with r-axSpA is substantial. TNFi exposure was associated with a lower risk of recurrent cardiovascular events.","PeriodicalId":8419,"journal":{"name":"Arthritis Research & Therapy","volume":"23 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2024-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142374253","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Low dose methotrexate impaired T cell transmigration through down-regulating CXCR4 expression in rheumatoid arthritis (RA) 小剂量甲氨蝶呤通过下调类风湿性关节炎(RA)中 CXCR4 的表达来抑制 T 细胞的迁移
IF 4.9 2区 医学
Arthritis Research & Therapy Pub Date : 2024-09-30 DOI: 10.1186/s13075-024-03403-9
Lei Ding, Daniel H. Park, Bo Gao, Lingyuan Wu, Meizhang Li, Haitham Abedelhakim, Ming Zhang
{"title":"Low dose methotrexate impaired T cell transmigration through down-regulating CXCR4 expression in rheumatoid arthritis (RA)","authors":"Lei Ding, Daniel H. Park, Bo Gao, Lingyuan Wu, Meizhang Li, Haitham Abedelhakim, Ming Zhang","doi":"10.1186/s13075-024-03403-9","DOIUrl":"https://doi.org/10.1186/s13075-024-03403-9","url":null,"abstract":"CXC chemokine CXCL12 is involved in the pathological development of rheumatoid arthritis (RA) through abnormal migration of peripheral immune cells in the joint. Although low dose methotrexate (MTX) is clinically used to treat RA patients, CXCL12 signaling responses to MTX-mediated treatments is still not well understood. In this study, we examined the expression of CXCR4 (cognatic receptor for CXCL12) in peripheral T cells from RA patients and arthritis mice models received from low dose MTX therapies. The effects of low dose MTX on CXCR4 were further determined via both in vitro CD3+ T cells and Cxcr4 conditional knockout (CKO) arthritis mice models. Our clinical data shows that low dose MTX treatment was clinically associated with down-regulated expression of chemokine receptor CXCR4 on patient peripheral T cells. In vitro, low dose MTX significantly decreased cell transmigration through down-regulated CXCR4’s expression in CD3+ T cells. Consistently, CD3+ T cells treated with low dose MTX demonstrated an increased genomic hypermethylation across the promoter region of Cxcr4 gene. Furthermore, our preclinical studies showed that low dose MTX-mediated downregulation of CXCR4 significantly improved the pathological development in mouse arthritis models. Conditional disruption of the Cxcr4 gene in peripheral immune cells potentially alleviated inflammation of joints and lung tissue in the arthritis mice, though genetic modification itself overall did not change their clinical scores of arthritis, except for a significant improvement on day 45 in CXCR4 CKO arthritis mice models during the recovery phase. Our findings suggest that the effect of low dose MTX treatment could serve to eliminate inflammation in RA patients through impairment of immune cell transmigration mediated by CXCR4.","PeriodicalId":8419,"journal":{"name":"Arthritis Research & Therapy","volume":"14 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142330052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Diminished expression of the ubiquitin-proteasome system in early treatment-naïve patients with rheumatoid arthritis and concomitant type 2 diabetes may be linked to IL-1 pathway hyper-activity; results from PEAC cohort 类风湿性关节炎和伴有2型糖尿病的早期治疗无效患者体内泛素-蛋白酶体系统的表达减少可能与IL-1通路的亢进有关;PEAC队列的研究结果
IF 4.9 2区 医学
Arthritis Research & Therapy Pub Date : 2024-09-28 DOI: 10.1186/s13075-024-03392-9
Piero Ruscitti, Damiano Currado, Felice Rivellese, Marta Vomero, Luca Navarini, Paola Cipriani, Costantino Pitzalis, Roberto Giacomelli
{"title":"Diminished expression of the ubiquitin-proteasome system in early treatment-naïve patients with rheumatoid arthritis and concomitant type 2 diabetes may be linked to IL-1 pathway hyper-activity; results from PEAC cohort","authors":"Piero Ruscitti, Damiano Currado, Felice Rivellese, Marta Vomero, Luca Navarini, Paola Cipriani, Costantino Pitzalis, Roberto Giacomelli","doi":"10.1186/s13075-024-03392-9","DOIUrl":"https://doi.org/10.1186/s13075-024-03392-9","url":null,"abstract":"Based on the recent evidence of IL-1 inhibition in patients with rheumatoid arthritis (RA) and concomitant type 2 diabetes (T2D), we evaluated the synovial tissue expression of IL-1 related genes in relationship to the ubiquitin–proteasome system and the effects of insulin on ubiquitinated proteins in fibroblast-like synoviocytes (FLSs). The synovial expression of IL-1 pathway genes was compared in early (< 1 year) treatment-naïve RA patients with T2D (RA/T2D n = 16) and age- and sex-matched RA patients without T2D (n = 16), enrolled in the Pathobiology of Early Arthritis Cohort (PEAC). The synovial expression of ubiquitin in macrophages and synovial lining fibroblasts was also assessed by Immunohistochemistry/immunofluorescence and correlated with synovial pathotypes. Finally, FLSs from RA patients (n = 5) were isolated and treated with human insulin (200 and 500 nM) and ubiquitinated proteins were assessed by western blot. Synovial tissues of RA/T2D patients were characterised by a consistent reduced expression of ubiquitin–proteasome genes. More specifically, ubiquitin genes (UBB, UBC, and UBA52) and genes codifying proteasome subunits (PSMA2, PSMA6, PSMA7, PSMB1, PSMB3, PSMB4, PSMB6, PSMB8, PSMB9, PSMB10, PSMC1, PSMD9, PSME1, and PSME2) were significantly lower in RA/T2D patients. On the contrary, genes regulating fibroblast functions (FGF7, FGF10, FRS2, FGFR3, and SOS1), and genes linked to IL-1 pathway hyper-activity (APP, IRAK2, and OSMR) were upregulated in RA/T2D. Immunohistochemistry showed a significant reduction of the percentage of ubiquitin-positive cells in synovial tissues of RA/T2D patients. Ubiquitin-positive cells were also increased in patients with a lympho-myeloid pathotype compared to diffuse myeloid or pauci-immune-fibroid. Finally, in vitro experiments showed a reduction of ubiquitinated proteins in RA-FLSs treated with a high concentration of insulin (500 nM). A different IL-1 pathway gene expression was observed in the synovial tissues of early treatment-naïve RA/T2D patients, linked to decreased expression of the ubiquitin–proteasome system. These findings may provide a mechanistic explanation of the observed clinical benefits of IL-1 inhibition in patients with RA and concomitant T2D.","PeriodicalId":8419,"journal":{"name":"Arthritis Research & Therapy","volume":"7 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2024-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142328866","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Four-year effectiveness, safety and drug retention rate of secukinumab in psoriatic arthritis: a real-life Italian multicenter cohort 赛库单抗治疗银屑病关节炎的四年疗效、安全性和药物保留率:意大利多中心队列的真实案例
IF 4.9 2区 医学
Arthritis Research & Therapy Pub Date : 2024-09-28 DOI: 10.1186/s13075-024-03401-x
Roberta Ramonda, Mariagrazia Lorenzin, Maria Sole Chimenti, Fabiola Atzeni, Angelo Semeraro, Salvatore D’Angelo, Carlo Selmi, Augusta Ortolan, Antonio Marchesoni, Maria Manara, Michele Maria Luchetti Gentiloni, Leonardo Santo, Carlo Salvarani, Alberto Cauli, Maurizio Rossini, Giorgio Amato, Giacomo Cozzi, Laura Scagnellato, Mario Ferraioli, Antonio Carriero, Elena Fracassi, Francesco Giorgio, Andrea Doria, Rosario Foti, Antonio Carletto
{"title":"Four-year effectiveness, safety and drug retention rate of secukinumab in psoriatic arthritis: a real-life Italian multicenter cohort","authors":"Roberta Ramonda, Mariagrazia Lorenzin, Maria Sole Chimenti, Fabiola Atzeni, Angelo Semeraro, Salvatore D’Angelo, Carlo Selmi, Augusta Ortolan, Antonio Marchesoni, Maria Manara, Michele Maria Luchetti Gentiloni, Leonardo Santo, Carlo Salvarani, Alberto Cauli, Maurizio Rossini, Giorgio Amato, Giacomo Cozzi, Laura Scagnellato, Mario Ferraioli, Antonio Carriero, Elena Fracassi, Francesco Giorgio, Andrea Doria, Rosario Foti, Antonio Carletto","doi":"10.1186/s13075-024-03401-x","DOIUrl":"https://doi.org/10.1186/s13075-024-03401-x","url":null,"abstract":"to evaluate over a 48-month follow-up period the: 1) long-term effectiveness and safety; 2) drug retention rate (DRR); 3) impact of comorbidities and bDMARDs line on MDA and DAPSA remission/low disease activity (LDA) of secukinumab in a multicenter Italian cohort of PsA patients. Consecutive PsA patients receiving secukinumab were followed prospectively in Italian centers between 2016 and 2023. Disease characteristics, previous/ongoing treatments, comorbidities and follow-up duration were recorded. Treatment response was evaluated at 6 and 12 months after initiation, and every year up to 48 months (T48). DRR was assessed according to clinical and demographic features, comorbidities and bDMARDs line. Adverse events (AE) were recorded. Six hundred eighty-five patients [42.5% male] were enrolled; 32.9% naïve received secukinumab; 74.2% had ≥ 1 comorbidity. Overall, secukinumab yielded improved outcomes at T48: naïve maintained lower disease activity vs. non-naïve [DAPSA 4.0 (1.4–8.1) vs. 6.0 (2.2–10.4);p = 0.04]; 76.9% naïve and 66.2% non-naïve achieved MDA; MDA no comorbidities vs. 1–3 comorbidities 78.8% vs. 73.3% (p < 0.05), and MDA no comorbidities vs. > 3 comorbidities 78.8% vs. 48.7% (p < 0.001). DAPSA-REM and DAPSA-LDA rates were higher in naïve patients, albeit similar between those without comorbidities vs. 1–3 comorbidities, and slightly lower in those with > 3 comorbidities. Treatment was discontinued in 233 patients due to loss of effectiveness, and in 41 due to AE. The overall DRR at T48 was 66%, with differences according to bDMARDs line (p < 0.001), use of combined csDMARDs (p = 0.016), BMI (p = 0.037) and mono/oligoarthritis vs. polyarthritis (p = 0.012). Secukinumab proved safe and effective, and patients achieved sustained remission with a notable drug retention rate at 4 years. What is already known on this topic? • Secukinumab is a novel drug for psoriatic arthritis (PsA), but real-life long-term safety and effectiveness data are lacking. What this study adds? • Our findings confirmed the safety and notable effectiveness on all PsA domains (arthritis, enthesitis, dactylitis, spinal symptoms, psoriasis, PROs and inflammatory markers), over a 48-month follow-up period. • The drug retention rate (DRR) is considerably high at 48 months. The main clinical disease pattern (peripheral/axial involvement), male gender, age, and the presence of comorbidities do not influence the DRR of secukinumab over time. • The first line of bDMARDs seems to favor MDA and remission/low disease activity DAPSA achievement and drug retention, while fewer than 3 comorbidities have no impact on these outcomes. How this study might affect research, practice or policy • This study supports the effectiveness of secukinumab, which also seems to be a valid option for multi-drug failure patients; the safety of secukinumab means it can be used in patients with comorbidities, older age, higher BMI, and in particular cardiovascular conditions and metabolic syndrome.","PeriodicalId":8419,"journal":{"name":"Arthritis Research & Therapy","volume":"40 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2024-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142328904","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effects of chronic ankle instability after grade I ankle sprain on the post-traumatic osteoarthritis I 级踝关节扭伤后踝关节长期不稳定对创伤后骨关节炎的影响
IF 4.9 2区 医学
Arthritis Research & Therapy Pub Date : 2024-09-28 DOI: 10.1186/s13075-024-03402-w
Yan Du, Shuo Wang, Fanlei Yang, Hao Xu, Yu Cheng, Jia Yu
{"title":"Effects of chronic ankle instability after grade I ankle sprain on the post-traumatic osteoarthritis","authors":"Yan Du, Shuo Wang, Fanlei Yang, Hao Xu, Yu Cheng, Jia Yu","doi":"10.1186/s13075-024-03402-w","DOIUrl":"https://doi.org/10.1186/s13075-024-03402-w","url":null,"abstract":"Untreated acute ankle sprains often result in chronic ankle instability (CAI) and can ultimately lead to the development of post-traumatic osteoarthritis (PTOA). At present, a typical animal model of ankle instability in mice is established by transecting the ligaments around the ankle joint. This study aimed to establish a grade I acute ankle sprain animal model by rapid stretching of peri-ankle joint ligaments. Furthermore, we tried to explore the pathophysiological mechanism of ankle osteoarthritis. In all, 18 male C57BL/6 J mice (7 weeks) were randomly divided into three groups: calcaneofibular ligament (CFL) laxity group, deltoid ligament (DL) laxity group, and SHAM group. One week after the surgical procedure, all mice were trained to run in the mouse rotation fatigue machine daily. The mice were tested on the balance beam before surgery and three days, 4 weeks, 8 weeks, and 12 weeks after surgery. Footprint analyses were performed on each mouse before surgery and 12 weeks after surgery. Micro-CT scanning was then performed to evaluate the degeneration of ankle joints and histological staining was performed to analyze and evaluate PTOA caused by ankle joint instability. After surgery, the mice in the CFL and DL laxity groups took longer to cross the balance beam and slipped more often than those in the SHAM group (p < 0.05). The step length and width in the CFL and DL laxity groups were significantly shorter and smaller than those in the SHAM group 12 weeks after surgery (p < 0.05). There was a significant increase in the bone volume fraction (BV/TV) in the CFL and DL laxity groups compared with the SHAM group (p < 0.05). Histological staining results suggested obvious signs of PTOA in the CFL and DL laxity groups. Based on CFL and DL laxity in a mouse ankle instability model, this study suggests that grade I ankle sprain can contribute to chronic ankle instability, impair motor coordination and balance, and eventually lead to PTOA of ankle with significant degeneration of its adjacent joints.","PeriodicalId":8419,"journal":{"name":"Arthritis Research & Therapy","volume":"25 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2024-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142328869","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Small extracellular vesicles derived from synovial fibroblasts contain distinct miRNA profiles and contribute to chondrocyte damage in osteoarthritis 滑膜成纤维细胞产生的小细胞外囊泡含有不同的 miRNA,是骨关节炎中软骨细胞损伤的原因之一
IF 4.9 2区 医学
Arthritis Research & Therapy Pub Date : 2024-09-28 DOI: 10.1186/s13075-024-03398-3
Sabha Asghar, Gary J. Litherland, John J. Cole, Iain B. McInnes, R. M. D. Meek, John C. Lockhart, Carl S. Goodyear, Anne Crilly
{"title":"Small extracellular vesicles derived from synovial fibroblasts contain distinct miRNA profiles and contribute to chondrocyte damage in osteoarthritis","authors":"Sabha Asghar, Gary J. Litherland, John J. Cole, Iain B. McInnes, R. M. D. Meek, John C. Lockhart, Carl S. Goodyear, Anne Crilly","doi":"10.1186/s13075-024-03398-3","DOIUrl":"https://doi.org/10.1186/s13075-024-03398-3","url":null,"abstract":"Small extracellular vesicles (sEV) derived from synovial fibroblasts (SF) represent a novel molecular mechanism regulating cartilage erosion in osteoarthritis (OA). However, a comprehensive evaluation using disease relevant cells has not been undertaken. The aim of this study was to isolate and characterise sEV from OA SF and to look at their ability to regulate OA chondrocyte effector responses relevant to disease. Profiling of micro (mi) RNA signatures in sEV and parental OA SF cells was performed. SF and chondrocytes were isolated from OA synovial membrane and cartilage respectively (n = 9). sEV were isolated from OA SF (± IL-1β) conditioned media by ultracentrifugation and characterised using scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Particle size was confirmed by nanoparticle tracking analysis (NTA). sEV regulation of OA chondrocyte and cartilage effector response was evaluated using qPCR, ELISA and sulphated glycosaminoglycan assay (sGAG). RNA-sequencing was used to establish miRNA signatures in isolated sEV from OA SF. OA SF derived sEV were readily taken up by OA chondrocytes, with increased expression of the catabolic gene MMP 13 (p < 0.01) and decreased expression of the anabolic genes aggrecan and COL2A1 (p < 0.01) observed. Treatment with sEV derived from IL-1β stimulated OA SF significantly decreased expression of aggrecan and COL2A1 (p < 0.001) and increased SOX 9 gene expression (p < 0.05). OA chondrocytes cultured with sEV from either non-stimulated or IL-1β treated OA SF, resulted in a significant increase in the secretion of IL-6, IL-8 and MMP-3 (p < 0.01). Cartilage explants cultured with sEV from SF (± IL-1β) had a significant increase in the release of sGAG (p < 0.01). miRNA signatures differed between parental SF cells and isolated sEV. The recently identified osteoclastogenic regulator miR182, along with miR4472-2, miR1302-3, miR6720, miR6087 and miR4532 were enriched in sEV compared to parental cells, p < 0.01. Signatures were similar in sEVs derived from non-stimulated or IL-1β stimulated SF. OA SF sEV regulate chondrocyte inflammatory and remodelling responses. OA SF sEV have unique signatures compared to parental cells which do not alter with IL-1β stimulation. This study provides insight into a novel regulatory mechanism within the OA joint which could inform future targeted therapy.","PeriodicalId":8419,"journal":{"name":"Arthritis Research & Therapy","volume":"7 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2024-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142328870","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Novel endothelial progenitor cells populations as biomarkers of damage and remission in systemic lupus erythematosus 作为系统性红斑狼疮损伤和缓解生物标志物的新型内皮祖细胞群
IF 4.9 2区 医学
Arthritis Research & Therapy Pub Date : 2024-09-28 DOI: 10.1186/s13075-024-03397-4
Carlos Rafael-Vidal, Sara Martínez-Ramos, Beatriz Malvar-Fernández, Irene Altabás-González, Coral Mouriño, Pablo Pazos-López, Arturo Fraga-Bau, José María Pego Reigosa, Samuel García
{"title":"Novel endothelial progenitor cells populations as biomarkers of damage and remission in systemic lupus erythematosus","authors":"Carlos Rafael-Vidal, Sara Martínez-Ramos, Beatriz Malvar-Fernández, Irene Altabás-González, Coral Mouriño, Pablo Pazos-López, Arturo Fraga-Bau, José María Pego Reigosa, Samuel García","doi":"10.1186/s13075-024-03397-4","DOIUrl":"https://doi.org/10.1186/s13075-024-03397-4","url":null,"abstract":"Endothelial progenitor cells (EPCs) are essential for maintenance of vascular homeostasis and stability, key processes in the pathogenesis of systemic lupus erythematosus (SLE). However, the role and phenotypic characterization of EPCs populations in SLE have not been completely elucidated. To identify EPCs specific subpopulations in patients with SLE using a novel flow cytometry tool. Peripheral blood mononuclear cells (PBMCs) were isolated from patients with SLE and healthy controls (HC). mRNA and surface protein expression were determined by quantitative PCR (qPCR) and flow cytometry. Clusters identification and characterization were performed using tSNE-CUDA dimensionality reduction algorithms. tSNE-CUDA analysis identified eight different clusters in PBMCs from HC and patients with SLE. Three of these clusters had EPC-like phenotype and the expression was elevated in patients with SLE. Moreover, four SLE-associated subclusters were found mainly expressed in patients with SLE, being only present in patients in remission with SLE and significantly associated with the 2021 Definition of Remission in SLE. Importantly, we also identified specific clusters in SLE patients with organ damage, according to the Systemic Lupus International Collaborating Clinics (SLICC)/American College of Rheumatology damage index (SDI). These clusters showed an EPC-like phenotype, but the expression of angiogenic markers was lower compared to HC or patients without organ damage, suggesting an impaired angiogenic function. Our novel approach identified clusters of EPCs in patients with SLE that are associated with remission and damage. Therefore, these clusters might be useful biomarkers to predict disease progression and severity in SLE pathogenesis. ","PeriodicalId":8419,"journal":{"name":"Arthritis Research & Therapy","volume":"11 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2024-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142328867","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Patients’ recollection about the onset of Sjögren’s disease – a mixed methods study on the patients’ perspective 患者对斯约恩氏病发病过程的回忆--关于患者观点的混合方法研究
IF 4.9 2区 医学
Arthritis Research & Therapy Pub Date : 2024-09-28 DOI: 10.1186/s13075-024-03404-8
Angelika Lackner, Barbara Dreo, Josef Hermann, Sabine Zenz, Johannes Fessler, Jens Thiel, Martin Helmut Stradner
{"title":"Patients’ recollection about the onset of Sjögren’s disease – a mixed methods study on the patients’ perspective","authors":"Angelika Lackner, Barbara Dreo, Josef Hermann, Sabine Zenz, Johannes Fessler, Jens Thiel, Martin Helmut Stradner","doi":"10.1186/s13075-024-03404-8","DOIUrl":"https://doi.org/10.1186/s13075-024-03404-8","url":null,"abstract":"Little is known about the symptoms at the onset of Sjögren’s Disease (SjD) and it is unclear whether SjD starts with characteristic symptoms that could be differentiated from dryness of other origin (sicca syndrome). The aim of this study was to investigate patients’ recollection of initial events and first symptoms of SjD. The second aim was to verify and quantify these aspects in a representative cohort. All SjD patients fulfilled the EULAR/ACR 2016 classification criteria. In the first part of the study, consecutive SjD patients were recruited for individual, semi-structured interviews. All interviews were audio-recorded and transcribed verbatim, and an inductive thematic data analysis was performed. In the second part, the identified aspects of the qualitative analysis were grouped into a checklist with ten items. One-hundred and thirty-four patients participated in the study. 31 SjD patients completed the qualitative part. Major aspects emerged of how patients experienced the beginning and first symptoms of SjD: (1) “classic” SjD symptoms (fatigue, pain, dryness) (2), sicca symptoms started after initial swelling of parotid and/or lymph nodes (3), after hormonal transition or infections before the onset of SjD symptoms. In the second part of the study, the previous identified major aspects were verified in an independent cohort of 103 SjD patients. The main symptom before diagnosis was dryness (n = 77, 74.8%) with migratory joint pain (n = 51, 49.5%) and fatigue (n = 47, 45.6%). In 38.8% (n = 40), patients reported a swelling/inflammation of the parotid gland at the onset of disease. We describe patients’ recollection of the onset of SjD. Raising awareness of the symptoms identified among physicians and among the general public may allow earlier diagnosis of SjD.","PeriodicalId":8419,"journal":{"name":"Arthritis Research & Therapy","volume":"1 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2024-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142328868","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Increased predictive value of optical spectral transmission in early rheumatoid arthritis through use of patient-adjusted cut-off scores 通过使用患者调整截断分数提高光学光谱透射率对早期类风湿性关节炎的预测价值
IF 4.9 2区 医学
Arthritis Research & Therapy Pub Date : 2024-09-20 DOI: 10.1186/s13075-024-03400-y
Konstantinos Triantafyllias, Khalid K. Altamimi, Florian Schederecker, Andreas Schwarting
{"title":"Increased predictive value of optical spectral transmission in early rheumatoid arthritis through use of patient-adjusted cut-off scores","authors":"Konstantinos Triantafyllias, Khalid K. Altamimi, Florian Schederecker, Andreas Schwarting","doi":"10.1186/s13075-024-03400-y","DOIUrl":"https://doi.org/10.1186/s13075-024-03400-y","url":null,"abstract":"The aims of this study were to suggest patient-adjusted optical spectral transmission (OST) cut-off values for the first time and to develop clinical models that predict the probability of an early rheumatoid arthritis (RA) diagnosis based on OST findings and the 2010 American College of Rheumatology/European League Against Rheumatism (ACR/EULAR) classification criteria as a reference standard. OST examinations were performed in newly diagnosed RA patients and healthy controls by the HandScan device. Moreover, RA patients underwent a full clinical [tender/swollen joint counts (TJC/SJC), disease activity score-28 (DAS28)] and laboratory evaluation. OST confounding factors were examined via logistic multivariate regression analyses and patient-adjusted OST-cut-offs were subsequently determined. Furthermore, statistical models to calculate the probability of an RA diagnosis, based on the measured OST values and the presence of OST influencing factors, were developed. Finally, correlations of OST with RA activity parameters were assessed. 1.584 joints of 72 early RA patients were examined via OST and compared to 2.200 joints of 100 healthy controls and 1.166 joints of 53 patients with non-inflammatory arthralgia (NIA), respectively. Overall OST diagnostic performance was excellent in the whole cohort between RA- and healthy control-group [Area-Under-the-Curve (AUC): 0.810 (95%CI: 0.746–0.873); p < 0.0001], and further improved in RA-patients with ≥ 1 swollen wrist/finger joint(s) [AUC: 0.841 (95%CI: 0.773–0.908); p < 0.0001]. Comparison between RA patients and patients with non-inflammatory arthralgia showed similar results by an AUC of 0.788 (95%-CI: 0.709–0.867; p < 0.0001), and further improved in RA patients with ≥ 1 swollen wrist/finger joint(s) [AUC: 0.822 (95%CI: 0.74–0.90); p < 0.0001]. For the assessment of an adjusted RA diagnosis probability, two gender-specific statistical models were developed, based on OST values and patient age. OST cut-off values of 11.2 and 18.21 were calculated for female and male patients with active disease (sensitivity 93% and 67%; specificity 71.2% and 90%), respectively. Among RA patients, OST was associated moderately/significantly with DAS28 (r = 0.42,p < 0.001) and swollen joint count (rho = 0.355,p = 0.002). The development of patient-adjusted OST cut-off values and the suggested statistical models significantly enhance OST’s diagnostic performance, supporting its utility in differentiating between RA and non-inflammatory conditions. Future research should include a broader spectrum of arthritis types to validate OST’s comprehensive diagnostic utility also across various inflammatory arthritides. DRKS00016752 (German Registry of Clinical Trials)","PeriodicalId":8419,"journal":{"name":"Arthritis Research & Therapy","volume":"272 1","pages":"165"},"PeriodicalIF":4.9,"publicationDate":"2024-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142276047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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