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Expression of CHI3L1 and CHIT1 in Osteoarthritic Rat Cartilage Model. A Morphological Study

Osteoarthritis is a degenerative joint disease, which affects millions of people around the world. It occurs when the protective cartilage at the end of bones wears over time, leading to loss of flexibility of the joint, pain and stiffness. The cause of osteoarthritis is unknown, but its development...

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Autores principales: Di Rosa, M., Szychlinska, M.A., Tibullo, D., Malaguarnera, L., Musumeci, G.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: PAGEPress Publications, Pavia, Italy 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4194398/
https://www.ncbi.nlm.nih.gov/pubmed/25308850
http://dx.doi.org/10.4081/ejh.2014.2423
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author Di Rosa, M.
Szychlinska, M.A.
Tibullo, D.
Malaguarnera, L.
Musumeci, G.
author_facet Di Rosa, M.
Szychlinska, M.A.
Tibullo, D.
Malaguarnera, L.
Musumeci, G.
author_sort Di Rosa, M.
collection PubMed
description Osteoarthritis is a degenerative joint disease, which affects millions of people around the world. It occurs when the protective cartilage at the end of bones wears over time, leading to loss of flexibility of the joint, pain and stiffness. The cause of osteoarthritis is unknown, but its development is associated with different factors, such as metabolic, genetic, mechanical and inflammatory ones. In recent years the biological role of chitinases has been studied in relation to different inflammatory diseases and more in particular the elevated levels of human cartilage glycoprotein 39 (CHI3L1) and chitotriosidase (CHIT1) have been reported in a variety of diseases including chronic inflammation and degenerative disorders. The aim of this study was to investigate, by immunohistochemistry, the distribution of CHI3L1 and CHIT1 in osteoarthritic and normal rat articular cartilage, to discover their potential role in the development of this disease. The hypothesis was that the expression of chitinases could increase in OA disease. Immunohistochemical analysis showed that CHI3L1 and CHIT1 staining was very strong in osteoarthritic cartilage, especially in the superficial areas of the cartilage most exposed to mechanical load, while it was weak or absent in normal cartilage. These findings suggest that these two chitinases could be functionally associated with the development of osteoarthritis and could be used as markers, so in the future they could have a role in the daily clinical practice to stage the severity of the disease. However, the longer-term in vivoand in vitro studies are needed to understand the exact mechanism of these molecules, their receptors and activities on cartilage tissue.
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spelling pubmed-41943982014-10-14 Expression of CHI3L1 and CHIT1 in Osteoarthritic Rat Cartilage Model. A Morphological Study Di Rosa, M. Szychlinska, M.A. Tibullo, D. Malaguarnera, L. Musumeci, G. Eur J Histochem Original Paper Osteoarthritis is a degenerative joint disease, which affects millions of people around the world. It occurs when the protective cartilage at the end of bones wears over time, leading to loss of flexibility of the joint, pain and stiffness. The cause of osteoarthritis is unknown, but its development is associated with different factors, such as metabolic, genetic, mechanical and inflammatory ones. In recent years the biological role of chitinases has been studied in relation to different inflammatory diseases and more in particular the elevated levels of human cartilage glycoprotein 39 (CHI3L1) and chitotriosidase (CHIT1) have been reported in a variety of diseases including chronic inflammation and degenerative disorders. The aim of this study was to investigate, by immunohistochemistry, the distribution of CHI3L1 and CHIT1 in osteoarthritic and normal rat articular cartilage, to discover their potential role in the development of this disease. The hypothesis was that the expression of chitinases could increase in OA disease. Immunohistochemical analysis showed that CHI3L1 and CHIT1 staining was very strong in osteoarthritic cartilage, especially in the superficial areas of the cartilage most exposed to mechanical load, while it was weak or absent in normal cartilage. These findings suggest that these two chitinases could be functionally associated with the development of osteoarthritis and could be used as markers, so in the future they could have a role in the daily clinical practice to stage the severity of the disease. However, the longer-term in vivoand in vitro studies are needed to understand the exact mechanism of these molecules, their receptors and activities on cartilage tissue. PAGEPress Publications, Pavia, Italy 2014-09-16 /pmc/articles/PMC4194398/ /pubmed/25308850 http://dx.doi.org/10.4081/ejh.2014.2423 Text en © Copyright M. Di Rosa et al. http://creativecommons.org/licenses/by-nc/3.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Paper
Di Rosa, M.
Szychlinska, M.A.
Tibullo, D.
Malaguarnera, L.
Musumeci, G.
Expression of CHI3L1 and CHIT1 in Osteoarthritic Rat Cartilage Model. A Morphological Study
title Expression of CHI3L1 and CHIT1 in Osteoarthritic Rat Cartilage Model. A Morphological Study
title_full Expression of CHI3L1 and CHIT1 in Osteoarthritic Rat Cartilage Model. A Morphological Study
title_fullStr Expression of CHI3L1 and CHIT1 in Osteoarthritic Rat Cartilage Model. A Morphological Study
title_full_unstemmed Expression of CHI3L1 and CHIT1 in Osteoarthritic Rat Cartilage Model. A Morphological Study
title_short Expression of CHI3L1 and CHIT1 in Osteoarthritic Rat Cartilage Model. A Morphological Study
title_sort expression of chi3l1 and chit1 in osteoarthritic rat cartilage model. a morphological study
topic Original Paper
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4194398/
https://www.ncbi.nlm.nih.gov/pubmed/25308850
http://dx.doi.org/10.4081/ejh.2014.2423
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