PMID: 16536221Mar 16, 2006Paper

Immunohistological analysis of normal and osteoarthritic human synovial tissue

Bulletin
Petek KorkusuzUlken Ors

Abstract

Intercellular communication mediated by cell surface antigens is important in the maintenance of synovial tissue (ST) integrity. Chronic inflammation is a common feature of osteoarthritis (OA). Cellular attachment to and migration into ST is one of the critical aspects of chronic inflammation. This study was undertaken to examine the tissue distribution of a broad spectrum of monoclonal antibodies (mAbs) containing tetraspan antigens (CD9, CD63, CD151), endothelial cell antigens (CD31, CD36, CD105, CD106, CD146), integrins (CD49a-f, CD29, CD41, CD51, CD61), CD39, CD98, CD99, CD143 and, CD147 supplied from fifth and sixth international workshops and conferences on human leukocyte differentiation antigens in a comparative manner in human OA and normal synovium. Ten primary OA patients and six normal individuals were included in this study. The average age of the patients was 65.0 +/- 8.3 years and the average age of the controls was 31.8 +/- 5.3 years. Sections were screened using an indirect immunoperoxidase method. Tetraspan antigens and CD98 presented rather unique staining pattern in OA synovium suggesting special roles for each antigen on the synovial lining layer (SLL). Endothelial cells and type A synoviocytes expressed CD...Continue Reading

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