Expression of platelet-derived growth factor receptors is induced on connective tissue cells during chronic synovial inflammation

K. Rubin, L. Terracio, L. Ronnstrand, C. H. Heldin, L. Klareskog

Research output: Contribution to journalArticle

Abstract

The tissue distribution of the receptor for platelet-derived growth factor (PDGF) was investigated by immunohistochemistry on frozen sections from normal and inflamed synovial tissue using monoclonal antibodies to the receptor. Non-inflamed synovial tissue showed no staining, indicating that PDGF receptor expression is low or absent in normal tissue. In contrast, tissue from synovitis with prominent neovascularization showed a strong staining in the tunica media of the proliferating blood vessels as well as on connective tissue cells in the stroma. Tissue from synovitis with prominent proliferation of synovial lining showed intense staining for PDGF receptors in fibroblast-like cells of the lining and a less intense staining on vascular and connective tissue cells deeper in the stroma. Staining for PDGF receptors was also intense in the pannus tissue close to infiltrated bone and cartilage. In all these forms of synovitis, PDGF receptor staining was associated with increased HLA-DR staining and infiltration of macrophages and T lymphocytes. The finding that PDGF receptor expression is induced in conjunction with the chronic synovial inflammation associated with rheumatoid arthritis and some other forms of arthritides suggests that PDGF may play a role in the stimulation of mesenchymal cell proliferation that often accompanies chronic inflammatory disease.

Original languageEnglish (US)
Pages (from-to)285-294
Number of pages10
JournalScandinavian Journal of Immunology
Volume27
Issue number3
StatePublished - 1988

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Connective Tissue Cells
Platelet-Derived Growth Factor Receptors
Staining and Labeling
Inflammation
Synovitis
Blood Vessels
Tunica Media
Platelet-Derived Growth Factor
Frozen Sections
HLA-DR Antigens
Tissue Distribution
Arthritis
Cartilage
Rheumatoid Arthritis
Chronic Disease
Fibroblasts
Immunohistochemistry
Macrophages
Monoclonal Antibodies
Cell Proliferation

ASJC Scopus subject areas

  • Immunology

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Expression of platelet-derived growth factor receptors is induced on connective tissue cells during chronic synovial inflammation. / Rubin, K.; Terracio, L.; Ronnstrand, L.; Heldin, C. H.; Klareskog, L.

In: Scandinavian Journal of Immunology, Vol. 27, No. 3, 1988, p. 285-294.

Research output: Contribution to journalArticle

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AU - Klareskog, L.

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