Clinical Rheumatology

, Volume 13, Issue 1, pp 90–97

Basement membrane proteins in synovial membrane: Distribution in rheumatoid arthritis and synthesis by fibroblast-like cells

Authors

  • M. Schneider
    • Medical Clinic and Policlinic BUniversity of Münster
  • B. Voss
    • Professional Associations' Research Institute for Occupational Medicine
  • J. Rauterberg
    • Institute for Arteriosclerosis Research
  • M. Menke
    • Medical Clinic and Policlinic BUniversity of Münster
  • Th. Pauly
    • Rhine Rheumatology Center Meerbusch
  • R. K. Miehlke
    • Northwest German Center of Rheumatology Sendenhorst
  • J. Friemann
    • Department of Environmental Pathology of the Institute for Environmental Hygiene at the University of Düsseldorf
  • U. Gerlach
    • Institute for Arteriosclerosis Research
Originals

DOI: 10.1007/BF02229873

Cite this article as:
Schneider, M., Voss, B., Rauterberg, J. et al. Clin Rheumatol (1994) 13: 90. doi:10.1007/BF02229873

Summary

Rheumatoid arthritis is a complex disease of unknown origin. In consequence of some immunological reactions, proliferative invading synovial tissue leads to destruction of normal joint architecture. The aim of this study was to investigate qualitative changes in extracellular matrix distribution of proliferating rheumatoid synovium and their cellular origin. Synovial tissues from 57 clinically indicated arthrotomies were investigated with immunofluorescence, using specific antibodies against extracellular matrix proteins in tissue slides and cultured cells, which were also studied for collagen biosynthesis. Results indicated that synovial fibroblast-like cells synthesize and secrete basement membrane proteins laminin and collagen type IV as e.g. endothelial cells or organogenic fibroblasts. Laminin and collagen type IV were specifically demonstrated pericellularly in the hyperplastic lining layer of active rheumatoid synovitis. These findings are discussed with respect to the possible implication of altered cell-matrix interactions in rheumatoid synovial proliferation.

Key words

Rheumatoid ArthritisSynoviumExtracellular MatrixBasement Membrane ProteinsImmunohistochemistry

Copyright information

© Clinical Rheumatology 1994