keyword
MENU ▼
Read by QxMD icon Read
search

Synovial tissue

keyword
https://www.readbyqxmd.com/read/28802150/mir-let-7a-regulates-anti-citrullinated-protein-antibody-induced-macrophage-activation-and-correlates-with-the-development-of-experimental-rheumatoid-arthritis
#1
Wei Zhu, Jianbo Yu, Shou Qiu, Haifeng Liu, Yan Wang, Xiaoyan Xu, Lili Shao, Lingling Zhu, Yan Jiao, Fan Liu, Xiaodong Zhu
Anti-citrullinated protein antibodies (ACPAs) are a key serological marker of rheumatoid arthritis (RA). To investigate whether miR-let7a downregulated ACPA-induced macrophage activation and arthritis, miR-let7a levels were assessed in the synovial fluid from patients with RA or osteoarthritis (OA). In addition, expression of the pro-inflammatory genes HMGA2, PI3K, and IRF5 was examined in ACPA-induced macrophages and a collagen antibody-induced mouse model of arthritis. As expected, miR-let7a expression in synovial fluid macrophages was substantially lower in patients with RA than in those with OA...
August 9, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28799079/protective-effects-of-paeonol-on-inflammatory-response-in-il-1%C3%AE-induced-human-fibroblast-like-synoviocytes-and-rheumatoid-arthritis-progression-via-modulating-nf-%C3%AE%C2%BAb-pathway
#2
Ke-Feng Zhai, Hong Duan, Lin Luo, Wen-Gen Cao, Fang-Kai Han, Ling-Ling Shan, Xue-Mei Fang
Various investigations have demonstrated that human fibroblast-like synoviocytes rheumatoid arthritis (HFLS-RA) take part in the chronic inflammatory responses and RA progression. Inhibition of synovium activation and inflammatory processes may represent a therapeutic target to alleviate RA. Paeonol, a major natural product, has many biological and pharmacological activities. However, its protective effects against RA considering HFLS-RA have not been explored. In this study, anti-inflammatory effects of paeonol were detected in interleukin-1β (IL-1β)-treated HFLS-RA...
August 10, 2017: Inflammopharmacology
https://www.readbyqxmd.com/read/28794515/the-complement-system-as-a-potential-therapeutic-target-in-rheumatic-disease
#3
REVIEW
Leendert A Trouw, Matthew C Pickering, Anna M Blom
Complement activation is associated with common rheumatic diseases such as systemic lupus erythematosus (SLE), rheumatoid arthritis (RA) and systemic vasculitis. Evidence linking complement activation to these diseases includes the presence of complement deposition in affected tissues, decreased levels of complement proteins and high levels of complement activation fragments in the blood and/or synovial fluid of patients with these diseases, as well as data from experimental models. Eculizumab, a monoclonal antibody that inhibits the complement component C5, is now approved for the treatment of rare conditions involving complement hyperactivation, and the success of this therapy has renewed interest in understanding the utility of complement inhibition in rheumatological practice, particularly for SLE...
August 10, 2017: Nature Reviews. Rheumatology
https://www.readbyqxmd.com/read/28793332/stromal-cell-markers-are-differentially-expressed-in-the-synovial-tissue-of-patients-with-early-arthritis
#4
Ivy Y Choi, Olga N Karpus, Jason D Turner, Debbie Hardie, Jennifer L Marshall, Maria J H de Hair, Karen I Maijer, Paul P Tak, Karim Raza, Jörg Hamann, Christopher D Buckley, Danielle M Gerlag, Andrew Filer
INTRODUCTION: Previous studies have shown increased expression of stromal markers in synovial tissue (ST) of patients with established rheumatoid arthritis (RA). Here, ST expression of stromal markers in early arthritis in relationship to diagnosis and prognostic outcome was studied. METHODS: ST from 56 patients included in two different early arthritis cohorts and 7 non-inflammatory controls was analysed using immunofluorescence to detect stromal markers CD55, CD248, fibroblast activation protein (FAP) and podoplanin...
2017: PloS One
https://www.readbyqxmd.com/read/28792533/increased-amount-of-phosphorylated-proinflammatory-osteopontin-in-rheumatoid-arthritis-synovia-is-associated-to-decreased-tartrate-resistant-acid-phosphatase-5b-5a-ratio
#5
Jani Luukkonen, Laia Mira Pascual, Christina Patlaka, Pernilla Lång, Sanna Turunen, Jussi Halleen, Tomi Nousiainen, Maarit Valkealahti, Juha Tuukkanen, Göran Andersson, Petri Lehenkari
BACKGROUND: Osteopontin (OPN) is an immunoregulatory protein which production increases in both rheumatoid arthritis (RA) and osteoarthritis (OA). Phosphorylated osteopontin (Phospho-OPN) is known to increase macrophage and osteoclast activation, this process is controlled by extracellular tartrate-resistant acid phosphatase (TRAcP), also a biomarker for RA. Here, we evaluated the phosphorylation status of OPN in RA and OA synovia, as well as its correlation with TRAcP isoforms. METHODS: Synovial tissue and fluid were obtained from 24 RA (14 seropositive and 10 seronegative) and 24 OA patients...
2017: PloS One
https://www.readbyqxmd.com/read/28790485/bone-wasn-t-built-in-a-day-destruction-and-formation-of-bone-in-the-rheumatic-diseases
#6
Ellen M Gravallese
The hallmark of rheumatoid arthritis is synovitis, or inflammation of synovial tissues lining joints. Synovitis in rheumatoid arthritis promotes destruction of articular bone by inducing the differentiation and function of osteoclasts, leading to significant patient morbidity. The cell types and pathways mediating articular bone destruction have now been elucidated and the critical role of receptor activator of nuclear factor-kappa B ligand has been recognized, leading to the identification of new targets for the protection of articular bone...
2017: Transactions of the American Clinical and Climatological Association
https://www.readbyqxmd.com/read/28790437/meniscal-ossicles-as-micro-ct-imaging-biomarker-in-a-rodent-model-of-antigen-induced-arthritis-a-synchrotron-based-x-ray-pilot-study
#7
Sandro Donato, Serena Pacilè, Federico Colombo, Chiara Garrovo, Simeone Dal Monego, Paolo Macor, Giuliana Tromba, Stefania Biffi
It is increasingly recognized that early detection of bone erosion plays an important role in the overall evaluation of rheumatoid arthritis and in the choice of the correct treatment approach. Since an appropriate use of imaging biomarkers in preclinical settings offers the prospect of smaller and optimized sample size, in the present study we define an anatomical imaging biomarker that could be objectively measured from micro-CT imaging data as an indicator of bone erosion in arthritis process. The well-characterized antigen-induced arthritis (AIA) model in rats was used...
August 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28790026/dominant-b-cell-receptor-clones-in-peripheral-blood-predict-onset-of-arthritis-in-individuals-at-risk-for-rheumatoid-arthritis
#8
Paul P Tak, Marieke E Doorenspleet, Maria J H de Hair, Paul L Klarenbeek, Marian H van Beers-Tas, Antoine H C van Kampen, Dirkjan van Schaardenburg, Danielle M Gerlag, Frank Baas, Niek de Vries
BACKGROUND: The onset of seropositive rheumatoid arthritis (RA) is preceded by the presence of specific autoantibodies in the absence of synovial inflammation. Only a subset of these at-risk individuals will develop clinical disease. This impedes efforts to implement early interventions that may prevent onset of clinically manifest disease. Here we analyse whether clonal changes in the B cell receptor (BCR) repertoire can reliably predict onset of signs and symptoms. METHODS: In a prospective cohort study in 21 individuals at risk for RA based on the presence of autoantibodies, the BCR repertoire of paired peripheral blood and synovial tissue samples was analysed using next-generation BCR sequencing...
August 8, 2017: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/28782470/novel-insights-into-the-pathogenesis-of-osteoarthritis
#9
Matthias Geyer, C Schönfeld
Osteoarthritis represents the most frequently diagnosed condition of the musculoskeletal system and accounts for a high amount of direct and indirect socioeconomic costs worldwide. While for rheumatoid arthritis much progress has been made in the past decades both in understanding its pathogenesis and in creating novel therapies, the pathophysiology of osteoarthritis still holds several secrets to be unraveled in the near future in order to also allow for the development of effective novel pharmacotherapeutical options...
August 7, 2017: Current Rheumatology Reviews
https://www.readbyqxmd.com/read/28777475/genetic-deletion-of-git2-prolongs-functional-recovery-and-suppresses-chondrocyte-differentiation-in-rats-with-rheumatoid-arthritis
#10
Hui Li, Shi-Bing Guan, Yi Lu, Fei Wang, Yu-Hong Liu, Qi-Yun Liu
The current study was conducted for investigating the mechanism by which GIT2 gene deletion affects the functional recovery and chondrocyte differentiation in rats with rheumatoid arthritis (RA). Thirty-two rats were randomly divided into normal, model, GIT2 gene knockout (GIT2-KO), and model + GIT2-KO groups. Hematoxylin-eosin (HE) staining was performed for the observation of synovial tissues. Immunohistochemistry examinations were conducted to determine type II collagen expression as well as identify chondrocyte differentiation...
August 4, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28771010/systems-pharmacology-dissection-of-multi-scale-mechanisms-of-action-for-herbal-medicines-in-treating-rheumatoid-arthritis
#11
Jinghui Wang, Yan Li, Yinfeng Yang, Jian Du, Miaoqing Zhao, Feng Lin, Shuwei Zhang, Bin Wang
As a chronic inflammatory and angiogenic disease with increased morbidity and mortality, rheumatoid arthritis (RA) is characterized by the proliferation of synovial tissue and the accumulation of excessive mononuclear infiltration, which always results in the joint deformity, disability, and eventually the destruction of the bone and cartilage. Traditional Chinese Medicine (TCM), with rich history of proper effectiveness in treating the inflammatory joint disease containing RA, has long combated such illness from, actually, an integrative and holistic point of view...
August 3, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28770826/the-immunoglobulin-d-fc-receptor-expressed-on-fibroblast-like-synoviocytes-from-patients-with-rheumatoid-arthritis-contributes-to-the-cell-activation
#12
Yu-Jing Wu, Wen-Sheng Chen, Heng-Shi Chen, Xing Dai, Jin Dong, Ying Wang, Ling-Ling Zhang, Yan Chang, Qiong Huang, Xiao-Yi Jia, Wei Wei
Immunoglobulin IgD might play an important role in autoimmune diseases, but the function of IgD has remained elusive, despite multiple attempts to define its biological function. Fibroblast-like synoviocytes (FLSs) are specialized cells of the synovium that play a key role in the pathogenesis of rheumatoid arthritis (RA). In this study we explored the possible roles of excessive IgD expression on the function of FLSs from RA patients (RA-FLSs). We showed that IgD Fc receptor (IgDR) was constitutively expressed on FLSs, and was significantly elevated in RA-FLSs compared with FLSs prepared from synovial tissues of healthy controls (HC-FLSs)...
August 3, 2017: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/28768880/hyaluronan-supplementation-as-a-mechanical-regulator-of-cartilage-tissue-development-under-joint-kinematic-mimicking-loading
#13
Yabin Wu, Martin J Stoddart, Karin Wuertz-Kozak, Sibylle Grad, Mauro Alini, Stephen J Ferguson
Articular cartilage plays an essential role in joint lubrication and impact absorption. Through this, the mechanical signals are coupled to the tissue's physiological response. Healthy synovial fluid has been shown to reduce and homogenize the shear stress acting on the cartilage surfaces due to its unique shear-thinning viscosity. As cartilage tissues are sensitive to mechanical changes in articulation, it was hypothesized that replacing the traditional culture medium with a healthy non-Newtonian lubricant could enhance tissue development in a cartilage engineering model, where joint-kinematic-mimicking mechanical loading is applied...
August 2017: Journal of the Royal Society, Interface
https://www.readbyqxmd.com/read/28767178/chemokine-receptor-7-ccr7-deficiency-leads-to-delayed-development-of-joint-damage-and-functional-deficits-in-a-murine-model-of-osteoarthritis
#14
Nisha Sambamurthy, Vu Nguyen, Ryan Smalley, Rui Xiao, Kurt Hankenson, Justin Gan, Rachel E Miller, Anne-Marie Malfait, George R Dodge, Carla R Scanzello
Elevated chemokine receptor Ccr7 is observed in knee osteoarthritis (OA) and associated with severity of symptoms. In this study, we confirmed that CCR7 protein expression is elevated in synovial tissue from OA patients by immunohistochemical staining. We then investigated whether Ccr7 deficiency impacted structural and functional joint degeneration utilizing a murine model of OA. OA-like disease was induced in male C57BL/6 and Ccr7-deficient (Ccr7(-/-) ) mice by destabilization of the medial meniscus (DMM)...
August 2, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28765647/fgf2-cooperates-with-il-17-to-promote-autoimmune-inflammation
#15
Xinrui Shao, Siyuan Chen, Daping Yang, Mengtao Cao, Yikun Yao, Zhengxi Wu, Ningli Li, Nan Shen, Xiaoxia Li, Xinyang Song, Youcun Qian
IL-17 is a pro-inflammatory cytokine implicated a variety of autoimmune diseases. We have recently reported that FGF2 cooperates with IL-17 to protect intestinal epithelium during dextran sodium sulfate (DSS)-induced colitis. Here, we report a pathogenic role of the FGF2-IL-17 cooperation in the pathogenesis of autoimmune arthritis. Combined treatment with FGF2 and IL-17 synergistically induced ERK activation as well as the production of cytokines and chemokines in human synovial intimal resident fibroblast-like synoviocytes (FLS)...
August 1, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28765605/the-potential-of-using-semitendinosus-tendon-as-autograft-in-rabbit-meniscus-reconstruction
#16
Chenxi Li, Xiaoqing Hu, Qingyang Meng, Xin Zhang, Jingxian Zhu, Linghui Dai, Jin Cheng, Mingjin Zhong, Weili Shi, Bo Ren, Jiying Zhang, Xin Fu, Xiaoning Duan, Yingfang Ao
Since transplantation of meniscal allograft or artificial menisci is limited by graft sources and a series of adverse events, substitution for meniscus reconstruction still needs to be explored. Natural biomaterials, which can provide a unique 3-D microenvironment, remain a promising alternative for tissue engineering. Among them, autograft is a preferred option for its safety and excellent biocompatibility. In this study, we utilized semitendinosus tendon autograft in meniscus reconstruction to investigate its fibrochondrogenic metaplasticity potential and chondroprotective effect...
August 1, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28764610/synovial-sarcoma-mimicking-pleomorphic-hyalinizing-angiectatic-tumor-of-soft-parts-a-case-report
#17
Neha Gupta, Samuel Kenan, Leonard B Kahn
Synovial sarcoma is a high-grade sarcoma commonly affecting young adults. The sites of involvement include soft tissue near joints, lung, pleura, mediastinum, larynx, kidney, and buttocks. Histologic types include monophasic, biphasic, and undifferentiated. We report a unique case of synovial sarcoma with low-grade histologic features mimicking pleomorphic hyalinizing angiectatic tumor (PHAT) with indolent behavior for a period of 10 years. The tumor showed angiectatic blood vessels with fibrinous cuffing, hypocellular and hypercellular spindle cell areas with rare mitoses, and focal atypia in a myxoid background...
August 1, 2017: International Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28762137/a-clinicopathologic-study-of-head-and-neck-malignant-peripheral-nerve-sheath-tumors
#18
Adepitan A Owosho, Cherry L Estilo, Joseph M Huryn, Ping Chi, Cristina R Antonescu
Head and neck high grade malignant peripheral nerve sheath tumors (HN-MPNSTs) are rare highly aggressive soft tissue sarcomas that show overlapping morphologic and immunophenotypic features with melanoma and other high grade sarcomas, resulting in diagnostic challenges, particularly in sporadic settings. Recent discoveries have implicated loss of function mutations in the polycomb repressive complex 2 (PRC2) components, including EED or SUZ12 genes, as one of the leading pathogenetic mechanisms in high grade MPNST...
July 31, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28760953/cd318-is-a-ligand-for-cd6
#19
Gospel Enyindah-Asonye, Yan Li, Jeffrey H Ruth, Danislav S Spassov, Katie E Hebron, Andries Zijlstra, Mark M Moasser, Benlian Wang, Nora G Singer, Huadong Cui, Ray A Ohara, Stephanie M Rasmussen, David A Fox, Feng Lin
It has been proposed that CD6, an important regulator of T cells, functions by interacting with its currently identified ligand, CD166, but studies performed during the treatment of autoimmune conditions suggest that the CD6-CD166 interaction might not account for important functions of CD6 in autoimmune diseases. The antigen recognized by mAb 3A11 has been proposed as a new CD6 ligand distinct from CD166, yet the identity of it is hitherto unknown. We have identified this CD6 ligand as CD318, a cell surface protein previously found to be present on various epithelial cells and many tumor cells...
August 15, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28759137/soft-tissue-sarcomas-from-a-morphological-to-a-molecular-biological-approach
#20
REVIEW
Yoshinao Oda, Hidetaka Yamamoto, Kenichi Kohashi, Yuichi Yamada, Kunio Iura, Takeaki Ishii, Akira Maekawa, Hirofumi Bekki
Recently developed molecular genetic techniques have led to the elucidation of tumor-specific genomic alterations and thereby the reclassification of tumor entities of soft tissue sarcoma. A solitary fibrous tumor-mimicking tumor with the AHRR-NCOA2 gene has been isolated as angiofibroma of soft tissue. As for small round cell sarcomas, novel fusion genes such as CIC-DUX4 and BCOR-CCNB3 have been identified in these tumor groups. SMARCB1/INI1 deficient tumors with round cell morphology are also expected to be reclassified in three types, based on the combination of their morphology and genotype...
July 31, 2017: Pathology International
keyword
keyword
52344
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"