Expression of type‐X collagen in osteoarthritis
作者:
Gordon D. Walker,
Mark Fischer,
James Gannon,
Roby C. Thompson,
Theodore R. Oegema,
期刊:
Journal of Orthopaedic Research
(WILEY Available online 1995)
卷期:
Volume 13,
issue 1
页码: 4-12
ISSN:0736-0266
年代: 1995
DOI:10.1002/jor.1100130104
出版商: Wiley Subscription Services, Inc., A Wiley Company
数据来源: WILEY
摘要:
AbstractThe present study was undertaken to examine how osteoarthritis affects the expression of type‐X collagen, a hypertrophic chondrocyte‐specific collagen in articular cartilage. A well characterized sheep polyclonal antiserum, as well as three mouse monoclonal antibodies against canine type‐X collagen, was used to immunolocalize type‐X collagen in human and canine joints. Its expression in osteoarthritic cartilage was altered in several locations. In the canine osteoarthritic joints, type‐X collagen increased in and just above the zone of calcified cartilage and was present diffusely throughout the calcified matrix. In both the human and canine cartilage, type‐X collagen was localized around cell clones in the transitional zone of cartilage. This is surprising, since that region of the cartilage does not calcify and one of the proposed roles of type‐X collagen is in mineralization. Thus, the osteoarthritic process may damage the matrix in the superficial layer and induce changes leading to the expression of the hypertrophic chondroc
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