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Crystal induced arthritis

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https://www.readbyqxmd.com/read/27934918/targeting-asc-in-nlrp3-inflammasome-by-caffeic-acid-phenethyl-ester-a-novel-strategy-to-treat-acute-gout
#1
Hye Eun Lee, Gabsik Yang, Nam Doo Kim, Seongkeun Jeong, Yunjin Jung, Jae Young Choi, Hyun Ho Park, Joo Young Lee
Gouty arthritis is caused by the deposition of uric acid crystals, which induce the activation of NOD-like receptor family, pyrin domain containing 3(NLRP3) inflammasome. The NLRP3 inflammasome, composed of NLRP3, the adaptor protein ASC, and caspase-1, is closely linked to the pathogenesis of various metabolic diseases including gouty arthritis. We investigated whether an orally administrable inhibitor of NLRP3 inflammasome was effective for alleviating the pathological symptoms of gouty arthritis and what was the underlying mechanism...
December 9, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27863506/interleukin-37-limits-monosodium-urate-crystal-induced-innate-immune-responses-in-human-and-murine-models-of-gout
#2
Lei Liu, Yu Xue, Yingfeng Zhu, Dandan Xuan, Xue Yang, Minrui Liang, Juan Wang, Xiaoxia Zhu, Jiong Zhang, Hejian Zou
BACKGROUND: Interleukin (IL)-37 has emerged as a fundamental inhibitor of innate immunity. Acute gout is a self-limiting inflammatory response to monosodium urate (MSU) crystals. In the current study, we assessed the preventive and therapeutic effect of recombinant human IL-37 (rhIL-37) in human and murine gout models. METHODS: We investigated the expression of IL-37 in patients with active and inactive gouty arthritis and assessed the effect of rhIL-37 in human and murine gout models: a human monocyte cell line (THP-1) and human synovial cells (containing macrophage-like and fibroblast-like synoviocytes) exposed to MSU crystals, a peritoneal murine model of gout and a murine gouty arthritis model...
November 18, 2016: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/27832792/gout-will-the-king-of-diseases-be-the-first-rheumatic-disease-to-be-cured
#3
EDITORIAL
Jasvinder A Singh
Gout is the most common inflammatory arthritis in adults in the Western world. Characterized by hyperuricemia and the effects of acute and chronic inflammation in joints and bursa, gout leads to an agonizing, chronically painful arthritis. Arthritis can also be accompanied by urate nephropathy and subcutaneous urate deposits (tophi). Exciting new developments in the last decade have brought back the focus on this interesting, crystal-induced chronic inflammatory condition. New insights include the role of NALP3 inflammasome-induced inflammation in acute gout, the characterization of diagnostic signs on ultrasound and dual-energy computed tomography imaging modalities, the recognition of target serum urate less than 6 mg/day as the goal for urate-lowering therapies, and evidence-based treatment guidelines...
November 11, 2016: BMC Medicine
https://www.readbyqxmd.com/read/27803833/coexistent-pseudogout-and-mycobacterium-avium-intracellulare-septic-arthritis-in-a-patient-with-hiv-and-esrd
#4
Wais Afzal, Omer M Wali, Kelly L Cervellione, Bhupinder B Singh, Farshad Bagheri
Pseudogout is a crystal-induced arthropathy characterized by the deposition of calcium pyrophosphate dihydrate (CPPD) crystals in synovial fluid, menisci, or articular cartilage. Although not very common, this entity can be seen in patients with chronic kidney disease (CKD). Septic arthritis due to Mycobacterium avium-intracellulare (MAI) is a rare entity that can affect immunocompromised patients such as those with acquired immunodeficiency syndrome (AIDS) or those who are on immunosuppressive drugs. Here, we describe a 51-year-old female who presented with fever, right knee pain, swelling, warmth, and decreased range of motion for several days...
2016: Case Reports in Rheumatology
https://www.readbyqxmd.com/read/27693802/efficacy-of-coenzymeq10-in-inhibiting-monosodium-urate-crystal-induced-inflammation-in-rats
#5
B Udhaya Lavinya, Ishita Bardhan, Sabina Evan Prince
Gout is a type of arthritis, which could result from the deposition of monosodium urate crystals in joints. It can cause redness, burning pain, inflammation of joints especially in big toe. In this study, we have looked for anti-arthritic effect of coenzyme Q10 (CoQ10) on monosodium urate crystal-induced inflammation in rats and compared it with that of the non-steroidal anti-inflammatory drug, indomethacin. The evaluation was done by measuring the paw volume, antioxidant status, lipid peroxidation, lysosomal enzymes (β-glcuronidase, β-galactosidase, N-acetyl-β-d-glucosaminidase, acid phosphatase) activities and histopathological studies...
September 29, 2016: European Journal of Pharmacology
https://www.readbyqxmd.com/read/27689075/effects-of-berberine-on-nlrp3-and-il-1%C3%AE-expressions-in-monocytic-thp-1-cells-with-monosodium-urate-crystals-induced-inflammation
#6
Ya-Fei Liu, Cai-Yu-Zhu Wen, Zhe Chen, Yu Wang, Ying Huang, Sheng-Hao Tu
Background. Urate crystals-induced inflammation is a critical factor during the initiation of gouty arthritis. Berberine is well known for its anti-inflammatory activity. However, the underlying effects of berberine on monosodium urate crystals-induced inflammation remain obscure. Objectives. This study is set to explore the protective effect and mechanism of berberine on monosodium urate crystals-induced inflammation in human monocytic THP-1 cells. Methods. The mRNA levels of NLRP3 and IL-1β were measured by Real-Time PCR, and the protein levels of NLRP3 and IL-1β were determined by ELISA, Western blot, and immunofluorescence...
2016: BioMed Research International
https://www.readbyqxmd.com/read/27619729/structural-basis-for-decreased-induction-of-class-ib-pi3-kinases-expression-by-mif-inhibitors
#7
Abhay Kumar Singh, Georgios Pantouris, Sebastian Borosch, Siripong Rojanasthien, Thomas Yoonsang Cho
Macrophage migration inhibitory factor (MIF) is a master regulator of proinflammatory cytokines and plays pathological roles when not properly regulated in rheumatoid arthritis, lupus, atherosclerosis, asthma and cancer. Unlike canonical cytokines, MIF has vestigial keto-enol tautomerase activity. Most of the current MIF inhibitors were screened for the inhibition of this enzymatic activity. However, only some of the enzymatic inhibitors inhibit receptor-mediated biological functions of MIF, such as cell recruitment, through an unknown molecular mechanism...
September 13, 2016: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/27584788/kinsenoside-screening-with-a-microfluidic-chip-attenuates-gouty-arthritis-through-inactivating-nf-%C3%AE%C2%BAb-signaling-in-macrophages-and-protecting-endothelial-cells
#8
Qiao Han, Wang Bing, Yin Di, Li Hua, Li Shi-He, Zheng Yu-Hua, Han Xiu-Guo, Wang Yu-Gang, Fan Qi-Ming, Yang Shih-Mo, Tang Ting-Ting
Gouty arthritis is a rheumatic disease that is characterized by the deposition of monosodium urate (MSU) in synovial joints cause by the increased serum hyperuricemia. This study used a three-dimensional (3D) flowing microfluidic chip to screen the effective candidate against MSU-stimulated human umbilical vein endothelial cell (HUVEC) damage, and found kinsenoside (Kin) to be the leading active component of Anoectochilus roxburghi, one of the Chinese medicinal plant widely used in the treatment of gouty arthritis clinically...
2016: Cell Death & Disease
https://www.readbyqxmd.com/read/27558643/overview-of-serum-uric-acid-treatment-targets-in-gout-why-less-than-6-mg-dl
#9
Gary Ruoff, N Lawrence Edwards
Gout is a progressive, painful, debilitating form of inflammatory arthritis. It is caused by factors that elevate the concentration of serum uric acid (sUA), leading to hyperuricemia (sUA >6.8 mg/dL). Continued elevated sUA can result in monosodium urate (MSU) crystal deposition in joints and soft tissues, and can cause acute and chronic inflammation. The prevalence of hyperuricemia and gout has increased over the last few decades, likely due to an aging population, changes in lifestyles and diet, and an increase in gout-associated comorbidities...
September 2016: Postgraduate Medicine
https://www.readbyqxmd.com/read/27448590/extensive-citrullination-promotes-immunogenicity-of-hsp90-through-protein-unfolding-and-exposure-of-cryptic-epitopes
#10
Timothy S Travers, Lisa Harlow, Ivan O Rosas, Bernadette R Gochuico, Ted R Mikuls, Sanjoy K Bhattacharya, Carlos J Camacho, Dana P Ascherman
Post-translational protein modifications such as citrullination have been linked to the breach of immune tolerance and clinical autoimmunity. Previous studies from our laboratory support this concept, demonstrating that autoantibodies targeting citrullinated isoforms of heat shock protein 90 (HSP90) are associated with rheumatoid arthritis complicated by interstitial lung disease. To further explore the relationship between citrullination and structural determinants of HSP90 immunogenicity, we employed a combination of ELISA-based epitope profiling, computational modeling, and mass-spectrometric sequencing of peptidylarginine deiminase (PAD)-modified protein...
September 1, 2016: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/27434622/facile-modulation-of-antibody-fucosylation-with-small-molecule-fucostatin-inhibitors-and-cocrystal-structure-with-gdp-mannose-4-6-dehydratase
#11
John G Allen, Mirna Mujacic, Michael J Frohn, Alex J Pickrell, Paul Kodama, Dhanashri Bagal, Tisha San Miguel, E Allen Sickmier, Steve Osgood, Aleksander Swietlow, Vivian Li, John B Jordan, Ki-Won Kim, Anne-Marie C Rousseau, Yong-Jae Kim, Seb Caille, Mike Achmatowicz, Oliver Thiel, Christopher H Fotsch, Pranhitha Reddy, John D McCarter
The efficacy of therapeutic antibodies that induce antibody-dependent cellular cytotoxicity can be improved by reduced fucosylation. Consequently, fucosylation is a critical product attribute of monoclonal antibodies produced as protein therapeutics. Small molecule fucosylation inhibitors have also shown promise as potential therapeutics in animal models of tumors, arthritis, and sickle cell disease. Potent small molecule metabolic inhibitors of cellular protein fucosylation, 6,6,6-trifluorofucose per-O-acetate and 6,6,6-trifluorofucose (fucostatin I), were identified that reduces the fucosylation of recombinantly expressed antibodies in cell culture in a concentration-dependent fashion enabling the controlled modulation of protein fucosylation levels...
October 21, 2016: ACS Chemical Biology
https://www.readbyqxmd.com/read/27432278/zisheng-shenqi-decoction-ameliorates-monosodium-urate-crystal-induced-gouty-arthritis-in-rats-through-anti-inflammatory-and-anti-oxidative-effects
#12
Jieru Han, Ying Xie, Fangyu Sui, Chunhong Liu, Xiaowei Du, Chenggang Liu, Xiaoling Feng, Deyou Jiang
Based on traditional Chinese medicinal theories on gouty arthritis, Zisheng Shenqi decoction (ZSD), a novel Chinese medicinal formula, was developed due to its multiple functions, including reinforcing renal function, promoting blood circulation and relieving pain. In the present study, the effect of ZSD on monosodium urate (MSU) crystal-induced gouty arthritis in rats was investigated and the underlying mechanisms were examined. The data from these investigations showed that the injection of MSU crystals into the ankle joint cavity caused significant elevations in ankle swelling and inflammatory cell infiltration into the synovium, whereas these abnormal changes were markedly suppressed by oral administration of ZSD (40 mg/kg) for 7 days...
September 2016: Molecular Medicine Reports
https://www.readbyqxmd.com/read/27416759/effective-suppression-of-c5a-induced-proinflammatory-response-using-anti-human-c5a-repebody
#13
Da-Eun Hwang, Jung-Min Choi, Chul-Su Yang, Joong-Jae Lee, Woosung Heu, Eun-Kyeong Jo, Hak-Sung Kim
The strongest anaphylatoxin, C5a, plays a critical role in the proinflammatory responses, causing the pathogenesis of a number of inflammatory diseases including sepsis, asthma, and rheumatoid arthritis. Inhibitors of C5a thus have great potential as therapeutics for various inflammatory disorders. Herein, we present the development of a high-affinity repebody against human C5a (hC5a), which effectively suppresses the proinflammatory response. A repebody scaffold composed of leucine-rich repeat (LRR) modules was previously developed as an alternative protein scaffold...
September 2, 2016: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/27405175/-preparation-and-evaluation-of-intra-articular-injectable-sinomenine-hydrochloride-loaded-in-situ-liquid-crystals
#14
Yu-lin Chen, Shuang-ying Gui, Xin Liang, Sheng-mei Wang, Xiao-jing Jiang
Phytantriol (PT), ethanol (ET) and water were used to prepare in situ cubic liquid crystal (ISV2). The pseudo-ternary phase diagram of PT-ET-water was constructed and isotropic solution formulations were chosen for further optimization. The physicochemical properties of isotropic solution formulations were evaluated to optimize the composition of ISV2. In situ hexagonal liquid crystals (ISH2) were prepared based on the composition of ISV2 with the addition of vitamin E acetate (VitEA) and the amount of VitEA was optimized by in vitro release behavior...
January 2016: Yao Xue Xue Bao, Acta Pharmaceutica Sinica
https://www.readbyqxmd.com/read/27355536/calcium-pyrophosphate-deposition-disease
#15
REVIEW
Ann K Rosenthal, Lawrence M Ryan
No abstract text is available yet for this article.
June 30, 2016: New England Journal of Medicine
https://www.readbyqxmd.com/read/27268719/morin-a-dietary-bioflavonol-suppresses-monosodium-urate-crystal-induced-inflammation-in-an-animal-model-of-acute-gouty-arthritis-with-reference-to-nlrp3-inflammasome-hypo-xanthine-phospho-ribosyl-transferase-and-inflammatory-mediators
#16
Chitra Dhanasekar, Mahaboobkhan Rasool
The anti-inflammatory effect of morin, a dietary bioflavanol was explored on monosodium urate (MSU) crystal-induced inflammation in rats, an experimental model for acute gouty arthritis. Morin treatment (30mg/kg b.wt) significantly attenuated the ankle swelling and the levels of lipid peroxidation, nitric oxide, serum pro-inflammatory cytokines (tumor necrosis factor (TNF) -α, interleukin (IL)-1β, and IL-6), monocyte chemoattractant protein (MCP)-1, vascular endothelial growth factor (VEGF), prostaglandin E2 (PGE2), and articular elastase along with an increased anti-oxidant status (catalase (CAT) and superoxide dismutase (SOD)) in the joint homogenate of MSU crystal-induced rats...
September 5, 2016: European Journal of Pharmacology
https://www.readbyqxmd.com/read/27245466/solid-dispersion-of-curcumin-as-polymeric-films-for-bioenhancement-and-improved-therapy-of-rheumatoid-arthritis
#17
Prashant P Mande, Sagar S Bachhav, Padma V Devarajan
PURPOSE: The aim of our study was development of advanced third generation Curcumin self microemulsifying composition solid dispersion (Cur SMEC-SD) with high drug loading, improved stability, rapid in-vitro dissolution and enhanced bioavailability for improved therapy of rheumatoid arthritis. METHOD: The Cur SMEC-SD comprising polymers (KollidonVA64[KVA], Eudragits, HPMC and Soluplus) and self microemulsifying composition of surfactant:co-surfactant:oil were coated onto rapidly disintegrating inert tablet core...
August 2016: Pharmaceutical Research
https://www.readbyqxmd.com/read/27234527/epigallocatechin-gallate-inhibits-urate-crystals-induced-peritoneal-inflammation-in-c57bl-6-mice
#18
Jhih-Jia Jhang, Chi-Cheng Lu, Gow-Chin Yen
Gouty arthritis is a type of monosodium urate (MSU) crystals-induced inflammation in the articular tissue and shows the increased levels of neutrophil infiltration and interleukin-1β (IL-1β) secretion. MSU is capable of activating IL-1β through a nucleotide-binding oligomerization domain-like receptor containing pyrin domain 3 (NLRP3) inflammasome. Epigallocatechin gallate (EGCG), a bioactive polyphenol in green tea with potent antioxidant activity, is effective to prevent rheumatoid arthritis and osteoarthritis...
May 28, 2016: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/27206713/synovial-fluid-proteins-are-required-for-the-induction-of-interleukin-1%C3%AE-production-by-monosodium-urate-crystals
#19
A Scanu, F Oliviero, L Gruaz, P Galozzi, R Luisetto, R Ramonda, D Burger, L Punzi
OBJECTIVES: Monosodium urate (MSU) crystal deposition in gouty joints promotes the release of inflammatory mediators, in particular interleukin (IL)-1β. The induction of IL-1β production by MSU crystals requires a co-stimulus. The objective of this study was to determine which part of the synovial fluid (SF) provides co-stimulation to MSU crystals to induce IL-1β in macrophages. METHOD: The lipidic fraction (LF) and the protein fraction (PF) were isolated from the SF of patients with arthropathies...
October 2016: Scandinavian Journal of Rheumatology
https://www.readbyqxmd.com/read/27159671/tabebuia-roseoalba-in-vivo-hypouricemic-and-anti-inflammatory-effects-of-its-ethanolic-extract-and-constituents
#20
Zilma Schimith Ferraz-Filha, Marcela Carolina de Paula Michel Araújo, Fernanda Cristina Ferrari, Iális Paiva Andrade Rodrigues Dutra, Dênia Antunes Saúde-Guimarães
Tabebuia species have several uses in folk medicine, including their use to treat inflammation and rheumatism. The aim of this study was to investigate whether the ethanolic extract of leaves from Tabebuia roseoalba and isolated compounds could be useful to decrease serum uric acid levels and restrain the gout inflammatory process. The compounds α-amyrin, β-amyrin, sitosterol, and stigmasterol were isolated from the ethanolic extract. Rutin and caffeic acid were identified in the ethanolic extract by HPLC analysis...
May 9, 2016: Planta Medica
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