To monitor whether biologic DMARD (bDMARD) home storage temperatures comply with the manufacturers' Summary of Product Characteristics (SmPC) recommendations.

Assess the effectiveness and safety of biologic therapy as well as predictors of response at 1 year of therapy, retention rate in biologic treatment and predictors of drug discontinuation in JIA patients in the Portuguese register of rheumatic diseases.

Ultrasonography (US) is a sensitive tool in the diagnosis of major salivary gland abnormalities in primary Sjögren's syndrome (pSS). The aim of this systematic review was to assess the metric properties of this technique.

Cryopyrin-associated periodic syndrome (CAPS) is a heterogeneous group of diseases characterized by excessive IL-1β release resulting in severe systemic and organ inflammation. Canakinumab targets IL-1β and is approved at standard dose for children and adults with all CAPS phenotypes. Limited data are available for the real-life effectiveness of canakinumab in patients living with CAPS. Therefore the aim of the study was to evaluate the real-life dosing and effectiveness of canakinumab in CAPS.

The Wnt signalling pathway is gaining increasing attention in the field of joint pathologies, attributable to its role in the development and homeostasis of the tissues found in the joint, including bone and cartilage. Imbalance in this pathway has been implicated in the development and progression of OA, and interference with the pathway might therefore depict an effective treatment strategy. Though offering multiple opportunities, it is yet to be decided which starting point will bring forth the most promising results. The complexity of the pathway and its interaction with other pathways (such as the TGF-β signalling pathway, which also has a central role in the maintenance of joint homeostasis) means that acting directly on proteins in this signalling cascade entails a high risk of undesired side effects. Therefore, interference with Wnt-induced proteins, such as WISP1, might be an overall more effective and safer therapeutic approach to inhibit the pathological events that take place during OA.

Limited studies have explored the association between adipokines and knee OA structural progression using quantitative MRI (qMRI), and very few have included total knee replacement (TKR) as a disease outcome. The objective of this study was to compare serum levels of five adipokines to cartilage volume loss (CVL) and investigate their predictive value for TKR.

The nature of the gastrointestinal microbiome determines the reservoir of lipopolysaccharide, which can migrate from the gut into the circulation, where it contributes to low-grade inflammation. Osteoarthritis (OA) is a low-grade inflammatory condition, and the elevation of levels of lipopolysaccharide in association with obesity and metabolic syndrome could contribute to OA. A 'two- hit' model of OA susceptibility and potentiation suggests that lipopolysaccharide primes the proinflammatory innate immune response via Toll-like receptor 4 and that progression to a full-blown inflammatory response and structural damage of the joint results from coexisting complementary mechanisms, such as inflammasome activation or assembly by damage-associated molecular patterns in the form of fragmented cartilage-matrix molecules. Lipopolysaccharide could be considered a major hidden risk factor that provides a unifying mechanism to explain the association between obesity, metabolic syndrome and OA.

TNF is a pleiotropic cytokine with important functions in homeostasis and disease pathogenesis. Recent discoveries have provided insights into TNF biology that introduce new concepts for the development of therapeutics for TNF-mediated diseases. The model of TNF receptor signalling has been extended to include linear ubiquitination and the formation of distinct signalling complexes that are linked with different functional outcomes, such as inflammation, apoptosis and necroptosis. Our understanding of TNF-induced gene expression has been enriched by the discovery of epigenetic mechanisms and concepts related to cellular priming, tolerization and induction of 'short-term transcriptional memory'. Identification of distinct homeostatic or pathogenic TNF-induced signalling pathways has introduced the concept of selectively inhibiting the deleterious effects of TNF while preserving its homeostatic bioactivities for therapeutic purposes. In this Review, we present molecular mechanisms underlying the roles of TNF in homeostasis and inflammatory disease pathogenesis, and discuss novel strategies to advance therapeutic paradigms for the treatment of TNF-mediated diseases.

Cytokine-mediated pathways are central to the pathogenesis of rheumatoid arthritis (RA). The purpose of this short Opinion article is to briefly overview the roles of cytokine families in the various phases and tissue compartments of this disease. In particular, we consider the combinatorial role played by cytokines in mediating the overlapping innate and adaptive immune responses associated with disease onset and persistence, and also those cytokine pathways that, in turn, drive the stromal response that is critical for tissue localization and associated articular damage. The success of cytokine inhibition in the clinic is also considerable, not only in offering remarkable therapeutic advances, but also in defining the hierarchical position of distinct cytokines in RA pathogenesis, especially IL-6 and TNF. This hierarchy, in turn, promises to lead to the description of meaningful clinical endotypes and the consequent possibility of therapeutic stratification in future.

Interleukin (IL)-1, first described ∼35 years ago as a secreted product of monocytes and neutrophils, refers to IL-1α and IL-1β, two key cytokines in the activation of innate immunity. These cytokines were among the first proteins identified as orchestrators of leukocyte communication, creating the class of secreted products now known as interleukins. The IL-1 family comprises a total of 11 members, including the two activating cytokines IL-1α and IL-1β as well as an inhibitory mediator, the IL-1 receptor antagonist. IL-1 is processed and activated by a caspase-1 dependent mechanism in conjunction with inflammasome assembly, as well as by caspase-1 independent processes that involve neutrophil proteases. Once activated, IL-1α and IL-1β act as potent proinflammatory cytokines at the local level, triggering vasodilatation and attracting monocytes and neutrophils to sites of tissue damage and stress. Importantly, these cytokines are crucial for the induction of matrix enzymes and serve as potent mediators of tissue damage by altering cartilage and bone homeostasis. Systemically, IL-1 cytokines foster the hypothalamic fever response and promote hyperalgesia. Uncontrolled IL-1 activation is a central component of some inflammatory diseases, including rare hereditary syndromes with mutations in inflammasome-associated genes or more frequent diseases such as gout, characterized by neutrophil infiltration and IL-1 activation. Apart from these connections to inflammatory diseases, an important role for IL-1 in inflammatory atherogenesis is also predicted. To date, four potent inhibitors of IL-1 are available for clinical use or in late-stage clinical development, which not only constitute efficacious therapies, but also helped improve our understanding of the role of IL-1 in human disease.