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https://www.readbyqxmd.com/read/28634420/characterization-of-the-proinflammatory-profile-of-synovial-fluid-derived-exosomes-of-patients-with-osteoarthritis
#1
Rossana Domenis, Rossella Zanutel, Federica Caponnetto, Barbara Toffoletto, Adriana Cifù, Cinzia Pistis, Paolo Di Benedetto, Araldo Causero, Massimo Pozzi, Fabrizio Bassini, Martina Fabris, Kayvan R Niazi, Patrick Soon-Shiong, Francesco Curcio
The purpose of this study is to characterize synovial fluid- (SF-) derived exosomes of patients with gonarthrosis comparing two methods of isolation and to investigate their immune regulatory properties. Extracellular vesicles (EVs) have been isolated from inflamed SF by polymer precipitation method and quantified by Exocet kit and by nanoparticle tracking analysis. Vesicles expressed all the specific exosomal markers by immunoblot and FACS. After isolation with Exoquick, a relevant contamination by immune complexes was detected, which required further magnetic bead-based purification to remove...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28634201/phosphoproteomic-profiling-reveals-alk-and-met-as-novel-actionable-targets-across-synovial-sarcoma-subtypes
#2
Emmy D G Fleuren, Myrella Vlenterie, Winette van der Graaf, Melissa H S Hillebrandt-Roeffen, James Blackburn, Xiuquan Ma, Howard Chan, Mandy C Magias, Anke van Erp, Laurens van Houdt, Sabri Cebeci, Amy van de Ven, Uta E Flucke, Erin E Heyer, David M Thomas, Christopher J Lord, Kieren D Marini, Vijesh Vaghjiani, Tim Mercer, Jason E Cain, Jianmin Wu, Yvonne M H Versleijen-Jonkers, Roger J Daly
Despite intensive multi-modal treatment of sarcomas, a heterogeneous group of malignant tumors arising from connective tissue, survival remains poor. Candidate-based targeted treatments have demonstrated limited clinical success, urging an unbiased and comprehensive analysis of oncogenic signaling networks to reveal therapeutic targets and personalized treatment strategies. Here we applied mass spectrometry-based phosphoproteomic profiling to the largest and most heterogeneous set of sarcoma cell lines characterized to date and identified novel tyrosine phosphorylation patterns, enhanced tyrosine kinases in specific subtypes, and potential driver kinases...
June 20, 2017: Cancer Research
https://www.readbyqxmd.com/read/28632567/transducing-like-enhancer-of-split-1-a-potential-immunohistochemical-marker-for-glomus-tumor
#3
Nazan Bozdogan, Gulay B Dilek, Emine Benzer, Mujde Karadeniz, Onder Bozdogan
Glomus tumors (GTs) are rare, perivascular soft tissue tumors. Although GTs are usually found in the subcutaneous tissue, they may be detected in extracutaneous sites and mucosal areas. Transducing-like enhancer of split 1 (TLE1) is a highly useful immunohistochemical marker, which basically helps in differential diagnosis of synovial sarcoma. Based on a coincidental detection of TLE1 in one GT case, we studied 26 additional GT cases to establish the importance and distribution of TLE1 in GTs. Of 24 subcutaneous GTs, 22 (91...
July 2017: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/28630849/a-case-of-chronic-inflammation-of-the-ankle-joint-with-subtle-signs-of-inflammation-a-rare-presentation-of-tuberculosis-ankle
#4
Jeevan Pereira, S Anoop, George Joy Pettah
INTRODUCTION: Tuberculosis (TB) of the ankle is an uncommon presentation of extrapulmonary infection. The early diagnosis of TB arthritis of the ankle is difficult because of the uncommon site, the ability of TB to mimic other disorders and, all too common, lack of awareness of about this infection in ankle joint. CASE REPORT: A 30-year-old male presented with a 1-year history of right ankle pain and swelling. He denied any history of recent infection but had had recurrent ankle pain that had been treated accordingly...
January 2017: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28630763/malignant-tumours-of-the-foot-and-ankle
#5
E Mascard, N Gaspar, L Brugières, C Glorion, S Pannier, A Gomez-Brouchet
Most of tumours of the foot are tumour-like (synovial cyst, foreign body reactions and epidermal inclusion cyst) or benign conditions (tenosynovial giant cells tumours, planta fibromatosis). Malignant tumours of the soft-tissue and skeleton are very rare in the foot and their diagnosis is often delayed with referral to specialised teams after initial inappropriate procedures or unplanned excisions. The adverse effect of these misdiagnosed tumours is the increasing rate of amputation or local recurrences in the involved patients...
May 2017: EFORT open reviews
https://www.readbyqxmd.com/read/28630727/medial-synovial-fold-cyst-in-the-hip-leading-to-pectineofoveal-impingement
#6
Naoki Nakano, Vikas Khanduja
Pectineofoveal impingement is a relatively rare condition, which can cause hip or groin pain along with mechanical symptoms of clicking in the young adult. We present the case of a 13-year-old girl who was referred to us with left hip pain, which had been affecting her for over six months along with mechanical symptoms of clicking. Following appropriate clinical examination and investigations the patient underwent arthroscopic surgery of her hip. At arthroscopy, a cyst was identified on the medial synovial fold, which was abutting against the zona orbicularis leading to pectineofoveal impingement...
January 2017: Journal of Hip Preservation Surgery
https://www.readbyqxmd.com/read/28630682/overexpressed-prame-is-a-potential-immunotherapy-target-in-sarcoma-subtypes
#7
Jason Roszik, Wei-Lien Wang, John A Livingston, Christina L Roland, Vinod Ravi, Cassian Yee, Patrick Hwu, Andrew Futreal, Alexander J Lazar, Shreyaskumar R Patel, Anthony P Conley
BACKGROUND: PRAME (preferentially expressed antigen in melanoma), a member of the cancer-testis antigen family, has been shown to have increased expression in solid tumors, including sarcoma, and PRAME-specific therapies are currently in development for other cancers such as melanoma. METHODS: To map the landscape of PRAME expression in sarcoma, we used publicly available data from The Cancer Genome Atlas (TCGA) and the Cancer Cell Line Encyclopedia (CCLE) projects and determined which sarcoma subtypes and subsets are associated with increased PRAME expression...
2017: Clinical Sarcoma Research
https://www.readbyqxmd.com/read/28629689/advanced-power-doppler-technique-increases-synovial-vascularity-detection-in-patients-with-rheumatoid-arthritis
#8
Davide Orlandi, Salvatore Gitto, Silvia Perugin Bernardi, Angelo Corazza, Luca De Flaviis, Enzo Silvestri, Marco Amedeo Cimmino, Luca Maria Sconfienza
We compared the diagnostic performance of an advanced power Doppler technique (superb microvascular imaging [SMI]) with that of power Doppler Imaging (PDI) and B-mode ultrasound (US) in patients with early rheumatoid arthritis (RA) and RA under treatment with rituximab. Thirty patients (21 women aged 45 ± 11 y) affected by RA with remission to moderate disease activity were examined. Both hand joints were evaluated using US, PDI and SMI. Two radiologists reviewed all video clips and evaluated synovial vascularity intensity using a semi-quantitative scoring system...
June 16, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28629364/changes-in-concentrations-of-haemostatic-and-inflammatory-biomarkers-in-synovial-fluid-after-intra-articular-injection-of-lipopolysaccharide-in-horses
#9
Stine Mandrup Andreassen, Anne Mette Lindberg Vinther, Søren Saxmose Nielsen, Pia Haubro Andersen, Aziz Tnibar, Annemarie T Kristensen, Stine Jacobsen
BACKGROUND: Septic arthritis is a common and potentially devastating disease characterized by severe intra-articular (IA) inflammation and fibrin deposition. Research into equine joint pathologies has focused on inflammation, but recent research in humans suggests that both haemostatic and inflammatory pathways are activated in the joint compartment in arthritic conditions. The aim of this study was to characterize the IA haemostatic and inflammatory responses in horses with experimental lipopolysaccharide (LPS)-induced joint inflammation...
June 19, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28629271/expression-of-interleukin-1-and-temporomandibular-disorder-contemporary-review-of-the-literature
#10
Adam Sorenson, Kyle Hresko, Seth Butcher, Sean Pierce, Vinicius Tramontina, Rosalia Leonardi, Carla Loreto, Jose Bosio, Luis Eduardo Almeida
OBJECTIVE: Temporomandibular disorders (TMD) are a group of conditions affecting the temporomandibular joint (TMJ), leading to jaw dysfunction, joint and muscle pain, and a decrease in quality of life. A communication network of pro- and anti-inflammatory mediators called cytokines maintains the homeostasis of the TMJ. This review will focus on the Interleukin (IL) family of cytokines, which have been quantified in TMJ synovial fluids in a variety of studies. IL-1α and IL-1β have pro-inflammatory effects, while the endogenous receptor antagonist (IL-1RA) inhibits the pro-inflammatory effects of IL-1...
June 19, 2017: Cranio: the Journal of Craniomandibular Practice
https://www.readbyqxmd.com/read/28627588/il%C3%A2-22-expression-is-increased-variedly-in-the-initial-phase-onset-and-chronic-phase-of-a-pristane%C3%A2-induced-arthritis-rat-model
#11
Weikun Hou, Bo Wang, Yan Zhou, Ke Xu, Liesu Meng, Wenhua Zhu, Congshan Jiang, Peng Xu, Shemin Lu
The aim of the present study was to investigate the expression pattern of T helper (Th) 17 and Th22 cell-related factors in a pristane‑induced arthritis (PIA) rat model. PIA rats were divided into the initial phase group [day (D) 6 post‑pristane injection], the onset of clinical arthritis group (D12), the acute arthritis group (D26) and the chronic arthritis group (D70). Rats injected with saline alone were used as the control group. The mRNA expression levels of interleukin (IL)‑17A, IL‑17F, interferon (IFN)‑γ, IL‑22, IL‑22 receptor (R) 1, IL‑22 binding protein (BP) and RAR‑related orphan receptor α were examined in the spleen and/or synovium of the various phases of PIA rats by reverse transcription‑quantitative polymerase chain reaction analysis...
June 9, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28627226/light-absorptive-properties-of-articular-cartilage-ecm-molecules-synovial-fluid-and-photoinitiators-as-potential-barriers-to-light-initiated-polymer-scaffolding-procedures
#12
Anthony J Finch, Jamie M Benson, Patrick E Donnelly, Peter A Torzilli
Objective Many in vivo procedures to repair chondral defects use ultraviolet (UV)-photoinitiated in situ polymerization within the cartilage matrix. Chemical species that absorb UV light might reduce the effectiveness of these procedures by acting as light absorption barriers. This study evaluated whether any of the individual native biochemical components in cartilage and synovial fluid interfered with the absorption of light by common scaffolding photosensitizers. Materials UV-visible spectroscopy was performed on each major component of cartilage in solution, on bovine synovial fluid, and on four photosensitizers, riboflavin, Irgacure 2959, quinine, and riboflavin-5'-phosphate...
June 1, 2017: Cartilage
https://www.readbyqxmd.com/read/28623906/correlations-between-inflammatory-cytokines-muscle-damage-markers-and-acute-postoperative-pain-following-primary-total-knee-arthroplasty
#13
Hai-Bo Si, Ti-Min Yang, Yi Zeng, Zong-Ke Zhou, Fu-Xing Pei, Yan-Rong Lu, Jing-Qiu Cheng, Bin Shen
BACKGROUND: Despite the success of total knee arthroplasty (TKA) in reducing knee pain and improving functional disability, the management of acute postoperative pain is still unsatisfactory. This study was aimed to quantitatively analyze the possible correlations between inflammatory cytokines, muscle damage markers and acute postoperative pain following primary TKA. METHODS: Patients scheduled for unilateral primary TKA were consecutively included, the serial changes of the numerical rating scale (NRS) at rest (NRSR) and at walking (NRSW), serum inflammatory cytokines and muscle damage markers were assessed before surgery (T0) and at postoperative day 1, 2, 3 and 5 (T1-T4, respectively); while pain disability questionnaire (PDQ) and synovial fluid inflammatory cytokines were evaluated at T0...
June 17, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28623342/hif-1%C3%AE-knockdown-reduces-glycolytic-metabolism-and-induces-cell-death-of-human-synovial-fibroblasts-under-normoxic-conditions
#14
Manuel J Del Rey, Álvaro Valín, Alicia Usategui, Carmen M García-Herrero, María Sánchez-Aragó, José M Cuezva, María Galindo, Beatriz Bravo, Juan D Cañete, Francisco J Blanco, Gabriel Criado, José L Pablos
Increased glycolysis and HIF-1α activity are characteristics of cells under hypoxic or inflammatory conditions. Besides, in normal O2 environments, elevated rates of glycolysis support critical cellular mechanisms such as cell survival. The purpose of this study was to analyze the contribution of HIF-1α to the energy metabolism and survival of human synovial fibroblasts (SF) under normoxic conditions. HIF-1α was silenced using lentiviral vectors or small-interfering RNA (siRNA) duplexes. Expression analysis by qRT-PCR and western blot of known HIF-1α target genes in hypoxia demonstrated the presence of functional HIF-1α in normoxic SF and confirmed the glycolytic enzyme glyceraldehyde-3-phosphate dehydrogenase (GAPDH) as a HIF-1α target even in normoxia...
June 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28622337/magnetic-resonance-imaging-of-posterolateral-plica-of-the-elbow-joint-asymptomatic-vs-symptomatic-subjects
#15
Sang-Hee Choi, Suk Kyeong Ji, Seung Ah Lee, Min Jong Park, Moon Jong Chang
BACKGROUND: Magnetic resonance imaging (MRI) may be useful to diagnose a posterolateral plica syndrome of the elbow joint because this syndrome has less clear clinical features. The purposes of this study were to document mediolateral and sagittal dimensions of a posterolateral synovial fold and to determine the proportion of subjects with the posterolateral plica in asymptomatic elbows. We also aimed to determine whether the dimensions of the posterolateral synovial fold and the prevalence of the plica differ between symptomatic and asymptomatic subjects...
2017: PloS One
https://www.readbyqxmd.com/read/28621703/pain-sensation-in-human-osteoarthritic-knee-joints-is-strongly-enhanced-by-diabetes-mellitus
#16
Annett Eitner, Julia Pester, Franziska Vogel, Ivan Marintschev, Thomas Lehmann, Gunther O Hofmann, Hans-Georg Schaible
The major burden of knee joint osteoarthritis (OA) is pain. Since in elder patients diabetes mellitus is an important comorbidity of OA we explored whether the presence of diabetes mellitus has a significant influence on pain intensity at the end stage of knee OA, and we aimed to identify factors possibly related to changes of pain intensity in diabetic patients. In 23 diabetic and 47 non-diabetic OA patients undergoing total knee arthroplasty, we assessed the pain intensity before the operation using the "Knee injury and Osteoarthritis Outcome score" (KOOS)...
June 8, 2017: Pain
https://www.readbyqxmd.com/read/28620193/microrna-29a-counteracts-synovitis-in-knee-osteoarthritis-pathogenesis-by-targeting-vegf
#17
Jih-Yang Ko, Mel S Lee, Wei-Shiung Lian, Wen-Tsan Weng, Yi-Chih Sun, Yu-Shan Chen, Feng-Sheng Wang
Synovitis contributes to the development of osteoarthritis (OA) of the knee. MicroRNAs regulate joint microenvironment homeostasis and deterioration. This study was undertaken to characterize the actions of microRNA-29a (miR-29a) to synovial remodeling in OA joints. Synovial specimens isolated from patients with end-stage OA knees showed abundant fibrotic matrix and vessel histopathology concomitant with weak miR-29a expression. In vitro, miR-29a knockdown caused synovial fibroblasts to exhibit high expressions of collagen III, TGF-β1, MMP9, MMP13, and ADAMTS5, whereas miR-29a overexpression diminished these joint-deleterious factors...
June 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28619088/chemokine-signals-are-crucial-for-enhanced-homing-and-differentiation-of-circulating-osteoclast-progenitor-cells
#18
Alan Sucur, Zrinka Jajic, Marinko Artukovic, Marina Ikic Matijasevic, Branimir Anic, Darja Flegar, Antonio Markotic, Tomislav Kelava, Sanja Ivcevic, Natasa Kovacic, Vedran Katavic, Danka Grcevic
BACKGROUND: The peripheral blood (PB) monocyte pool contains osteoclast progenitors (OCPs), which contribute to osteoresorption in inflammatory arthritides and are influenced by the cytokine and chemokine milieu. We aimed to define the importance of chemokine signals for migration and activation of OCPs in rheumatoid arthritis (RA) and psoriatic arthritis (PsA). METHODS: PB and, when applicable, synovial fluid (SF) samples were collected from 129 patients with RA, 53 patients with PsA, and 110 control patients in parallel to clinical parameters of disease activity, autoantibody levels, and applied therapy...
June 15, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28618869/review-of-soluble-biomarkers-of-osteoarthritis-lessons-from-animal-models
#19
Catherine B Legrand, Cécile J Lambert, Fanny V Comblain, Christelle Sanchez, Yves E Henrotin
Objective Osteoarthritis (OA) is one of the leading causes of disability within the adult population. Currently, its diagnosis is mainly based on clinical examination and standard radiography. To date, there is no way to detect the disease at a molecular level, before the appearance of structural changes and symptoms. So an attractive alternative for monitoring OA is the measurement of biochemical markers in blood, urine, or synovial fluid, which could reflect metabolic changes in joint tissue and therefore disease onset and progression...
July 2017: Cartilage
https://www.readbyqxmd.com/read/28617559/blockade-of-il-17-alleviated-inflammation-in-rat-arthritis-and-mmp-13-expression
#20
X-L Shui, W Lin, C-W Mao, Y-Z Feng, J-Z Kong, S-M Chen
OBJECTIVE: Rheumatoid arthritis (RA) is one systemic auto-immune disorder featured as chronic synovitis and can destruct joint cartilage. Fibroblast-like synoviocyte (FLS) secretes various factors affecting chondrocyte matrix and degradation. This study thus investigated the effect of interleukin-17A (IL-17A) on FLS and osteoclast. MATERIALS AND METHODS: Type II collagen-induced arthritis (CIA) rats were assigned to CIA model, CIA + IgG1 isotype, and CIA + Anti-Rat IL-17A groups...
May 2017: European Review for Medical and Pharmacological Sciences
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