19
views
0
recommends
+1 Recommend
0 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      The role of IL-17A in axial spondyloarthritis and psoriatic arthritis: recent advances and controversies

      review-article

      Read this article at

      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          Although the pathogenic mechanisms underlying axial spondyloarthritis (axSpA) and psoriatic arthritis (PsA) are not fully elucidated, several lines of evidence suggest that immune responses mediated by interleukin 17A (IL-17A) play a pivotal role in both diseases. This is best highlighted by the significant clinical efficacy shown with inhibitors of IL-17A in treating axSpA and PsA. Nevertheless, a number of knowledge gaps exist regarding the role of IL-17A in the pathophysiology of spondyloarthritis in man, including its cellular origin, its precise role in discrete disease processes such enthesitis, bone erosion, and bone formation, and the reasons for the discrepant responses to IL-17A inhibition observed in certain other spondyloarthritis manifestations. In this review, we focus on the latest data from studies investigating the role of IL-17A in ankylosing spondylitis (AS) and PsA that build on existing and emerging scientific knowledge in the field. Key remaining research questions are also highlighted to guide future research.

          Related collections

          Most cited references167

          • Record: found
          • Abstract: found
          • Article: not found

          Pain regulation by non-neuronal cells and inflammation

          Acute pain is protective and a cardinal feature of inflammation. Chronic pain after arthritis, nerve injury, cancer, and chemotherapy is associated with chronic neuroinflammation, a local inflammation in the peripheral or central nervous system. Accumulating evidence suggests that non-neuronal cells such as immune cells, glial cells, keratinocytes, cancer cells, and stem cells play active roles in the pathogenesis and resolution of pain. We review how non-neuronal cells interact with nociceptive neurons by secreting neuroactive signaling molecules that modulate pain. Recent studies also suggest that bacterial infections regulate pain through direct actions on sensory neurons, and specific receptors are present in nociceptors to detect danger signals from infections. We also discuss new therapeutic strategies to control neuroinflammation for the prevention and treatment of chronic pain.
            Bookmark
            • Record: found
            • Abstract: found
            • Article: not found

            Requirement of Interleukin 17 Receptor Signaling for Lung Cxc Chemokine and Granulocyte Colony-Stimulating Factor Expression, Neutrophil Recruitment, and Host Defense

            Bacterial pneumonia is an increasing complication of HIV infection and inversely correlates with the CD4+ lymphocyte count. Interleukin (IL)-17 is a cytokine produced principally by CD4+ T cells, which induces granulopoiesis via granulocyte colony-stimulating factor (G-CSF) production and induces CXC chemokines. We hypothesized that IL-17 receptor (IL-17R) signaling is critical for G-CSF and CXC chemokine production and lung host defenses. To test this, we used a model of Klebsiella pneumoniae lung infection in mice genetically deficient in IL-17R or in mice overexpressing a soluble IL-17R. IL-17R–deficient mice were exquisitely sensitive to intranasal K. pneumoniae with 100% mortality after 48 h compared with only 40% mortality in controls. IL-17R knockout (KO) mice displayed a significant delay in neutrophil recruitment into the alveolar space, and had greater dissemination of K. pneumoniae compared with control mice. This defect was associated with a significant reduction in steady-state levels of G-CSF and macrophage inflammatory protein (MIP)-2 mRNA and protein in the lung in response to the K. pneumoniae challenge in IL-17R KO mice. Thus, IL-17R signaling is critical for optimal production of G-CSF and MIP-2 and local control of pulmonary K. pneumoniae infection. These data support impaired IL-17R signaling as a potential mechanism by which deficiency of CD4 lymphocytes predisposes to bacterial pneumonia.
              Bookmark
              • Record: found
              • Abstract: found
              • Article: not found

              Chronic mucocutaneous candidiasis in humans with inborn errors of interleukin-17 immunity.

              Chronic mucocutaneous candidiasis disease (CMCD) is characterized by recurrent or persistent infections of the skin, nails, and oral and genital mucosae caused by Candida albicans and, to a lesser extent, Staphylococcus aureus, in patients with no other infectious or autoimmune manifestations. We report two genetic etiologies of CMCD: autosomal recessive deficiency in the cytokine receptor, interleukin-17 receptor A (IL-17RA), and autosomal dominant deficiency of the cytokine interleukin-17F (IL-17F). IL-17RA deficiency is complete, abolishing cellular responses to IL-17A and IL-17F homo- and heterodimers. By contrast, IL-17F deficiency is partial, with mutant IL-17F-containing homo- and heterodimers displaying impaired, but not abolished, activity. These experiments of nature indicate that human IL-17A and IL-17F are essential for mucocutaneous immunity against C. albicans, but otherwise largely redundant.
                Bookmark

                Author and article information

                Journal
                Ann Rheum Dis
                Ann. Rheum. Dis
                annrheumdis
                ard
                Annals of the Rheumatic Diseases
                BMJ Publishing Group (BMA House, Tavistock Square, London, WC1H 9JR )
                0003-4967
                1468-2060
                September 2019
                5 July 2019
                : 78
                : 9
                : 1167-1178
                Affiliations
                [1 ] departmentLeeds Institute of Rheumatic and Musculoskeletal Medicine , University of Leeds , Leeds, UK
                [2 ] NIHR Leeds Musculoskeletal Biomedical Research Unit, Chapel Allerton, Leeds Teaching Hospital Trust , Leeds, UK
                [3 ] departmentInstitute of Infection Immunity and Inflammation , University of Glasgow , Glasgow, UK
                [4 ] Rheumatology Department, Guy's and Saint Thomas' NHS Foundation Trust , London, UK
                [5 ] Kennedy Institute of Rheumatology, University of Oxford , Oxford, UK
                [6 ] departmentNuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences , University of Oxford , Oxford, UK
                [7 ] departmentInstitute of Ageing and Chronic Disease , University of Liverpool , Liverpool, UK
                [8 ] Department of Academic Rheumatology, Aintree University Hospital , Liverpool, UK
                Author notes
                [Correspondence to ] Dr Robert Moots, University of Liverpool Institute of Ageing and Chronic Disease, Liverpool, L9 7AL, UK; r.j.moots@ 123456liverpool.ac.uk
                Author information
                http://orcid.org/0000-0001-7019-6211
                Article
                annrheumdis-2019-215356
                10.1136/annrheumdis-2019-215356
                6788885
                31278139
                a8a97d92-136c-4312-b49b-2113bbfe7ee0
                © Author(s) (or their employer(s)) 2019. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.

                This is an open access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited, appropriate credit is given, any changes made indicated, and the use is non-commercial. See:  http://creativecommons.org/licenses/by-nc/4.0/.

                History
                : 08 March 2019
                : 17 May 2019
                : 14 June 2019
                Funding
                Funded by: FundRef http://dx.doi.org/10.13039/100008272, Novartis Pharmaceuticals Corporation;
                Categories
                Review
                1506
                2311
                Custom metadata
                unlocked

                Immunology
                ankylosing spondylitis,inflammation,psoriatic arthritis,spondyloarthritis
                Immunology
                ankylosing spondylitis, inflammation, psoriatic arthritis, spondyloarthritis

                Comments

                Comment on this article