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Volume 14 Issue 3, March 2018

Image supplied by Dr Michal Dudek from the Faculty of Life Sciences, University of Manchester, Manchester, UK. The image shows knee articular cartilage from a chondrocyte-specific Bmal1-knockout mouse. The tissue was stained with safranin O and fast green. Deletion of the transcription factor brain and muscle Arnt-like protein 1 (BMAL1, also known as aryl hydrocarbon receptor nuclear translocator-like protein 1), a core component of the circadian clock, results in the loss of circadian rhythm and leads to degeneration of knee cartilage. The circadian clock controls the rhythmic expression of several hundred genes in cartilage and its function can be affected by inflammation and ageing, both of which are risk factors for osteoarthritis. Studies of the circadian clock will help us better understand cartilage physiology in health and disease.

Research Highlight

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In Brief

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Research Highlight

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News & Views

  • A new publication by the GRAPPA–OMERACT group provides recommendations and a useful framework for physicians on the use of composite measures and treatment targets in psoriatic arthritis. However, these recommendations highlight the need for more research in order to improve patient care and health-related quality of life.

    • Raffaele Scarpa
    • Francesco Caso

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    News & Views
  • New evidence strengthens the hypothesis that exposure to trauma and the associated physiological responses contribute to the development of autoimmune diseases, including systemic lupus erythematosus.

    • Eric F. Morand
    News & Views
  • Biologic agents targeting key proteins involved in bone homeostasis are revolutionizing the management of osteoporosis. New clinical data support the use of these novel therapies to rapidly increase bone mass and decrease the risk of fractures.

    • Serge L. Ferrari
    News & Views
  • Outcome assessment of disease modification represents a major challenge to the development of therapies and management of spondyloarthritis, particularly for patients with axial disease. Could a new approach to imaging assessment of the spine using low-dose CT provide an answer to this perennial problem?

    • Walter P. Maksymowych
    • Robert G. Lambert
    News & Views
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Review Article

  • Primary Sjögren syndrome (pSS) is characterized by B cell infiltrates in the salivary glands and an increased risk of B cell lymphoma. In this Review, the authors describe the myriad ways that B cells are involved in the pathogenesis of pSS.

    • Gaëtane Nocturne
    • Xavier Mariette
    Review Article
  • The presence of anti-citrullinated protein antibodies (ACPAs) is a useful biomarker in rheumatoid arthritis (RA). New technological advances are helping to unravel the role of the anti-citrullinated antigen response in RA pathogenesis, in particular, the contribution of ACPAs, ACPA glycosylation and ACPA-expressing B cells.

    • Hans Ulrich Scherer
    • Tom W. J. Huizinga
    • Rene E. M. Toes
    Review Article
  • Proteinases orchestrate many processes in inflammatory arthritis, but their ability to signal via proteolytically activated receptors is often overlooked. This Review provides an overview of proteinases and their receptors in inflammatory arthritis, alongside suggestions for therapeutically targeting these pathways.

    • Katerina Oikonomopoulou
    • Eleftherios P. Diamandis
    • Vinod Chandran
    Review Article
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