common in the older adult population, oa is associated with loss of cartilage over time. they examined the mir-455 parent molecule that is an unusual one in that it creates two different strands of functional mirna, 5p and 3p. individual mirnas target a repertoire of genes that contain their specific binding sequence in the gene message. a previous study has shown that deleting the mir-455-3p strand in mice causes degeneration of the mouse knee cartilage but the details, and the effect of the 5p strand, remained unclear. “our interest in the topic was aroused by this lack of information and reinforced by the exceptionality of mir-455 in generating two distinct strands of mirna that both have biological effects.” the researchers examined mir-455 levels in human cartilage samples and found that individuals with oa had significantly lower amounts of this mirna. “we performed a detailed genetic screening and found that the gene message for a protein called hypoxia-inducible factor-2α (hif-2α) was amongst the targets of mir-455.”
hif-2α is a protein that is involved in the breakdown of cartilage. “our findings not only help us better understand the biology of cartilage regulation and oa pathogenesis, but also show that mir-455 has the potential to be developed into a novel therapeutic method for treating oa,” explains ito. this study provides strong support for using both strands of mir-455 in such a manner for oa. use this form if you have come across a typo, inaccuracy or would like to send an edit request for the content on this page. for general feedback, use the public comments section below (please adhere to guidelines). the information you enter will appear in your e-mail message and is not retained by medical xpress in any form. you can unsubscribe at any time and we’ll never share your details to third parties.
osteoarthritis (oa) can be viewed as the structural and functional failure of the synovial joint organ (loeser et al., 2012). the inflammatory mediators can be detected in both synovial fluid and serum in oa patients, indicating that inflammation does play a significant role in the pathogenesis of oa (legrand et al., 2001). however, the results from two recent phase ii clinical studies to assess the efficacy of lutikizumab in patients with hand oa and knee oa were unsatisfactory (fleischmann et al., 2019; kloppenburg et al., 2019). a pilot study investigated the efficacy and tolerability of ia injection of infliximab in erosive hand oa (fioravanti et al., 2009). a 12-month, double-blind, randomized controlled trial evaluated the efficacy and safety of adalimumab in controlling structural damage in patients with erosive hand oa (verbruggen et al., 2012). the balance of wnt pathway activity is integral for regulating the differentiation of progenitor cells in the joint and maintaining cartilage homeostasis (lories et al., 2013; thysen et al., 2015). cathepsin-k is the predominant cysteine cathepsin in the skeleton and it plays an important role in the resorption of cartilage and bone (dejica et al., 2008). a randomized, double-blind, placebo-controlled phase i b proof-of-concept trial evaluated the efficacy and safety of ia injection of sprifermin (10, 30, and 100 μg) in patients with symptomatic knee oa (lohmander et al., 2014). two randomized, double-blind, placebo-controlled phase ii studies to evaluate the safety and efficacy of ia injection of gec-tgf-β1 in patients with knee oa (cherian et al., 2015; ha et al., 2015). increased subchondral bone resorption and bone turnover contribute to the pathogenesis of oa (karsdal et al., 2014). it promotes the proliferation and survival of osteoblasts, which is a bone anabolic therapy for osteoporosis (sampson et al., 2011). a phase iib/iii clinical trial assessed the efficacy, tolerability, and joint safety of fasinumab in patients with hip and/or knee oa (dakin et al., 2019). the anti-ngf treatment undoubtedly provides great potential for improving the pain and function of patients with severely symptomatic oa, but it carries the risk of aggravating the structural progression of oa (miller et al., 2017). the oa patients in the progressed periods are potentially more responsive to interventions, and these patients might be recruited in dmoad trials to assess the efficacy of a new drug in the future. long-term rcts are still needed to confirm the safety and efficacy of these novel oa pharmacotherapy medicines. overexpression of active tgf-beta-1 in the murine knee joint: evidence for synovial-layer-dependent chondro-osteophyte formation. subcutaneous tanezumab for osteoarthritis of the hip or knee: efficacy and safety results from a 24-week randomised phase iii study with a 24-week follow-up period. a high-throughput quantification method of curcuminoids and curcumin metabolites in human plasma via high-performance liquid chromatography/tandem mass spectrometry. preliminary results of a phase ii randomized study to determine the efficacy and safety of genetically engineered allogeneic human chondrocytes expressing tgf-β1 in patients with grade 3 chronic degenerative joint disease of the knee. adalimumab in patients with hand osteoarthritis refractory to analgesics and nsaids: a randomised, multicentre, double-blind, placebo-controlled trial. a randomized, double-blind study of amg 108 (a fully human monoclonal antibody to il-1r1) in patients with osteoarthritis of the knee. mechanisms and therapeutic implications of cellular senescence in osteoarthritis. effectiveness of non-steroidal anti-inflammatory drugs for the treatment of pain in knee and hip osteoarthritis: a network meta-analysis. a small-molecule inhibitor of the wnt pathway (sm04690) as a potential disease modifying agent for the treatment of osteoarthritis of the knee. serum levels of vitamin d, sunlight exposure, and knee cartilage loss in older adults: the tasmanian older adult cohort study. intra-articular sprifermin reduces cartilage loss in addition to increasing cartilage gain independent of location in the femorotibial joint: post-hoc analysis of a randomised, placebo-controlled phase ii clinical trial. safety of opioids in osteoarthritis: outcomes of a systematic review and meta-analysis. a multicenter, single-blind, phase iia clinical trial to evaluate the efficacy and safety of a cell-mediated gene therapy in degenerative knee arthritis patients. effect of intra-articular sprifermin vs placebo on femorotibial joint cartilage thickness in patients with osteoarthritis.
tanezumab in the treatment of chronic musculoskeletal conditions. the coupling of bone and cartilage turnover in osteoarthritis: opportunities for bone antiresorptives and anabolics as potential treatments?. a multicenter, double-blind, phase iii clinical trial to evaluate the efficacy and safety of a cell and gene therapy in knee osteoarthritis patients. pain reduction with oral methotrexate in knee osteoarthritis, a pragmatic phase iii trial of treatment effectiveness (promote): study protocol for a randomized controlled trial. phase iia, placebo-controlled, randomised study of lutikizumab, an anti-interleukin-1α and anti-interleukin-1β dual variable domain immunoglobulin, in patients with erosive hand osteoarthritis. microarray analysis of bone marrow lesions in osteoarthritis demonstrates upregulation of genes implicated in osteochondral turnover, neurogenesis and inflammation. efficacy of hydroxychloroquine in hand osteoarthritis: a randomized, double-blind, placebo-controlled trial. exploration of metformin as novel therapy for osteoarthritis: preventing cartilage degeneration and reducing pain behavior. nonclinical and clinical pharmacological characterization of the potent and selective cathepsin k inhibitor miv-711. combination cox-2 inhibitor and metformin attenuate rate of joint replacement in osteoarthritis with diabetes: a nationwide, retrospective, matched-cohort study in taiwan. protective effects of tumor necrosis factor-α blockade by adalimumab on articular cartilage and subchondral bone in a rat model of osteoarthritis. effect of vitamin d supplementation on progression of knee pain and cartilage volume loss in patients with symptomatic osteoarthritis. therapeutic effects of an anti-adamts-5 antibody on joint damage and mechanical allodynia in a murine model of osteoarthritis. fibroblast growth factor-18 stimulates chondrogenesis and cartilage repair in a rat model of injury-induced osteoarthritis. effectiveness of curcuminoids in the treatment of knee osteoarthritis: a systematic review and meta-analysis of randomized clinical trials. associations between proinflammatory cytokines in the synovial fluid and radiographic grading and pain-related scores in 47 consecutive patients with osteoarthritis of the knee. disease-modifying effect of strontium ranelate in a subset of patients from the phase iii knee osteoarthritis study sekoia using quantitative mri: reduction in bone marrow lesions protects against cartilage loss. efficacy and safety of strontium ranelate in the treatment of knee osteoarthritis: results of a double-blind, randomised placebo-controlled trial. structural effects of sprifermin in knee osteoarthritis: a post-hoc analysis on cartilage and non-cartilaginous tissue alterations in a randomized controlled trial. role of cathepsin k in normal joints and in the development of arthritis. effect of tanezumab on joint pain, physical function, and patient global assessment of osteoarthritis among patients with osteoarthritis of the hip or knee. the pharmacology of curcumin: is it the degradation products?. safety profile of the interleukin-1 inhibitors anakinra and canakinumab in real-life clinical practice: a nationwide multicenter retrospective observational study. effects of vitamin d supplementation on disabling foot pain in patients with symptomatic knee osteoarthritis. safety, tolerability, and pharmacodynamics of an anti-interleukin-1α/β dual variable domain immunoglobulin in patients with osteoarthritis of the knee: a randomized phase 1 study. knee effusion-synovitis volume measurement and effects of vitamin d supplementation in patients with knee osteoarthritis. a novel wnt pathway inhibitor, sm04690, for the treatment of moderate to severe osteoarthritis of the knee: results of a 24-week, randomized, controlled, phase 1 study. oarsi recommendations for the management of hip and knee osteoarthritis. can low-dose methotrexate reduce effusion-synovitis and symptoms in patients with mid- to late-stage knee osteoarthritis?
. osteoarthritis. philadelphia— there is currently no cure philadelphia— there is currently no cure for osteoarthritis, but a group of what’s new in knee osteoarthritis treatments? hyaluronic acid or hyaluronate injections platelet-rich plasma (prp) injections mesenchymal a possible new treatment for osteoarthritis joint issues and coordinately regulate cartilage homeostasis, nature communications (2021)., new treatment for osteoarthritis 2022, new treatment for osteoarthritis 2022, new treatment for hip osteoarthritis 2021, most effective medication for osteoarthritis, what is the best treatment for osteoarthritis in knees.
aci has been shown to improve the symptoms of osteoarthritis, including pain and mobility. it can also slow or stop osteoarthritis developing, delaying or preventing the need for joint replacement surgery. this makes it particularly useful for younger people with early-stage osteoarthritis. teriparatide may become a novel candidate therapy for injury-induced oa. a phase ii study (nct03072147) to assess the chondroregenerative the team found that paroxetine not only slows down cartilage degeneration, but also promotes cartilage health in both mice and human cartilage nct03081806: techfields pharma, in april 2021, initiated “a phase 3, multicenter, 22-week, double-blind and 30-week open label study to evaluate, new treatments for osteoarthritis of the knee, new treatment for osteoarthritis 2020.
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