Le Goff, B., Berthelot, J-M., Maugars, Y. et al. (1 more author) (2013) Osteoclasts in RA: Diverse origins and functions. Joint Bone Spine, 80 (6). pp. 586-591. ISSN 1297-319X
Abstract
Osteoclasts were recognized in the late 1990s as the cells responsible for generalized and focal bone loss in rheumatoid arthritis (RA). Concepts about osteoclast biology have changed radically based on recent evidence of considerable diversity in both the origins and the functions of osteoclasts. In addition, the role for osteoclasts is not confined to bone resorption but may also include active contributions to inflammatory and autoimmune responses. Thus, in RA, osteoclast progenitors may arise from both circulating cells and cells developed within the rheumatoid synovium or subchondral bone. Within the inflamed synovium, osteoclasts are activated by factors such as cytokines, immune complexes, or activators of the toll-like receptors, which are not found in healthy bone tissue. Finally, recent data suggest that osteoclasts may be capable of antigen presentation to T cells via major histocompatibility complex class I and class II molecules. Confirmation of this suggestion by future studies would indicate that osteoclasts might be involved not only in bone resorption, but also in autoimmune responses and antigen presentation. These data highlight the considerable complexity of interactions between bone tissue and the immune system. Research into these interactions may identify new targets for treatments against the bone abnormalities associated with chronic inflammatory disease.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2013 Société franc¸ aise de rhumatologie. Published by Elsevier Masson SAS. All rights reserved. |
Keywords: | Osteoclasts; Rheumatoid arthritis; T lymphocyte; B lymphocyte; Immune complexes; Toll-like receptors |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Medicine, Dentistry and Health (Sheffield) > The Medical School (Sheffield) > Division of Genomic Medicine (Sheffield) > Department of Oncology and Metabolism (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 06 May 2016 07:32 |
Last Modified: | 03 Nov 2016 01:54 |
Published Version: | http://dx.doi.org/10.1016/j.jbspin.2013.04.002 |
Status: | Published |
Publisher: | Elsevier |
Refereed: | Yes |
Identification Number: | 10.1016/j.jbspin.2013.04.002 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:98163 |