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Profiling the Secretion of Soluble Mediators by End Stage Osteoarthritis Synovial Tissue Explants Reveals a Reduced Responsiveness to an Inflammatory Trigger
OBJECTIVE: Evidence is accumulating that synovial tissue plays an active role in osteoarthritis (OA), however, exact understanding of its contribution is lacking. In order to further elucidate its role in the OA process, we aimed to identify the secretion pattern of soluble mediators by synovial tis...
Autores principales: | , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2013
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3643929/ https://www.ncbi.nlm.nih.gov/pubmed/23658758 http://dx.doi.org/10.1371/journal.pone.0062634 |
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author | Gierman, Lobke M. van El, Benno van der Ham, Frits Koudijs, Angela Stoop, Reinout Verheijen, Jan H. Kloppenburg, Margreet van Osch, Gerjo J. V. M. Stojanovic-Susulic, Vedrana Huizinga, Tom W. J. Zuurmond, Anne-Marie |
author_facet | Gierman, Lobke M. van El, Benno van der Ham, Frits Koudijs, Angela Stoop, Reinout Verheijen, Jan H. Kloppenburg, Margreet van Osch, Gerjo J. V. M. Stojanovic-Susulic, Vedrana Huizinga, Tom W. J. Zuurmond, Anne-Marie |
author_sort | Gierman, Lobke M. |
collection | PubMed |
description | OBJECTIVE: Evidence is accumulating that synovial tissue plays an active role in osteoarthritis (OA), however, exact understanding of its contribution is lacking. In order to further elucidate its role in the OA process, we aimed to identify the secretion pattern of soluble mediators by synovial tissue and to assess its ability to initiate cartilage degeneration. METHODS: Synovial tissue explants (STEs) obtained from donors without history of OA (n = 8) or from end stage OA patients (n = 16) were cultured alone or together with bovine cartilage explants in the absence or presence of IL-1α. The secretion of 48 soluble mediators was measured and the effect on glycosaminoglycan (GAG) release and matrix metalloproteinase (MMP) activity was determined. RESULTS: Normal and OA STEs secreted comparable levels of almost all measured soluble mediators. However, in the presence of IL-1α these mediators were less secreted by OA than by normal STEs of which 15 differed significantly (p<0.01). No effect of normal or OA STEs on GAG release from the cartilage explants was observed, and no differences in MMP activity between OA and normal STEs were detected. CONCLUSIONS: Unexpectedly, a comparable secretion profile of soluble mediators was found for OA and normal STEs while the reduced responsiveness of OA STEs to an inflammatory trigger indicates a different state of this tissue in OA patients. The effects could be the result of prolonged exposure to an inflammatory environment in OA development. Further understanding of the pro-inflammatory and inflammation resolving mechanisms during disease progression in synovial tissue may provide valuable targets for therapy in the future. |
format | Online Article Text |
id | pubmed-3643929 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2013 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-36439292013-05-08 Profiling the Secretion of Soluble Mediators by End Stage Osteoarthritis Synovial Tissue Explants Reveals a Reduced Responsiveness to an Inflammatory Trigger Gierman, Lobke M. van El, Benno van der Ham, Frits Koudijs, Angela Stoop, Reinout Verheijen, Jan H. Kloppenburg, Margreet van Osch, Gerjo J. V. M. Stojanovic-Susulic, Vedrana Huizinga, Tom W. J. Zuurmond, Anne-Marie PLoS One Research Article OBJECTIVE: Evidence is accumulating that synovial tissue plays an active role in osteoarthritis (OA), however, exact understanding of its contribution is lacking. In order to further elucidate its role in the OA process, we aimed to identify the secretion pattern of soluble mediators by synovial tissue and to assess its ability to initiate cartilage degeneration. METHODS: Synovial tissue explants (STEs) obtained from donors without history of OA (n = 8) or from end stage OA patients (n = 16) were cultured alone or together with bovine cartilage explants in the absence or presence of IL-1α. The secretion of 48 soluble mediators was measured and the effect on glycosaminoglycan (GAG) release and matrix metalloproteinase (MMP) activity was determined. RESULTS: Normal and OA STEs secreted comparable levels of almost all measured soluble mediators. However, in the presence of IL-1α these mediators were less secreted by OA than by normal STEs of which 15 differed significantly (p<0.01). No effect of normal or OA STEs on GAG release from the cartilage explants was observed, and no differences in MMP activity between OA and normal STEs were detected. CONCLUSIONS: Unexpectedly, a comparable secretion profile of soluble mediators was found for OA and normal STEs while the reduced responsiveness of OA STEs to an inflammatory trigger indicates a different state of this tissue in OA patients. The effects could be the result of prolonged exposure to an inflammatory environment in OA development. Further understanding of the pro-inflammatory and inflammation resolving mechanisms during disease progression in synovial tissue may provide valuable targets for therapy in the future. Public Library of Science 2013-05-03 /pmc/articles/PMC3643929/ /pubmed/23658758 http://dx.doi.org/10.1371/journal.pone.0062634 Text en © 2013 Gierman et al http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited. |
spellingShingle | Research Article Gierman, Lobke M. van El, Benno van der Ham, Frits Koudijs, Angela Stoop, Reinout Verheijen, Jan H. Kloppenburg, Margreet van Osch, Gerjo J. V. M. Stojanovic-Susulic, Vedrana Huizinga, Tom W. J. Zuurmond, Anne-Marie Profiling the Secretion of Soluble Mediators by End Stage Osteoarthritis Synovial Tissue Explants Reveals a Reduced Responsiveness to an Inflammatory Trigger |
title | Profiling the Secretion of Soluble Mediators by End Stage Osteoarthritis Synovial Tissue Explants Reveals a Reduced Responsiveness to an Inflammatory Trigger |
title_full | Profiling the Secretion of Soluble Mediators by End Stage Osteoarthritis Synovial Tissue Explants Reveals a Reduced Responsiveness to an Inflammatory Trigger |
title_fullStr | Profiling the Secretion of Soluble Mediators by End Stage Osteoarthritis Synovial Tissue Explants Reveals a Reduced Responsiveness to an Inflammatory Trigger |
title_full_unstemmed | Profiling the Secretion of Soluble Mediators by End Stage Osteoarthritis Synovial Tissue Explants Reveals a Reduced Responsiveness to an Inflammatory Trigger |
title_short | Profiling the Secretion of Soluble Mediators by End Stage Osteoarthritis Synovial Tissue Explants Reveals a Reduced Responsiveness to an Inflammatory Trigger |
title_sort | profiling the secretion of soluble mediators by end stage osteoarthritis synovial tissue explants reveals a reduced responsiveness to an inflammatory trigger |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3643929/ https://www.ncbi.nlm.nih.gov/pubmed/23658758 http://dx.doi.org/10.1371/journal.pone.0062634 |
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