... RA.Introduction Rheumatoid arthritis (RA) is a chronic inflammatory diseasecharacterized by synovial lining hyperplasia and sublining infil-tration of inflammatory cells [1]. Fibroblast-like synoviocytes(FLSs) ... in rheumatoid arthritis synoviocytesDeepa R Hammaker1, David L Boyle1, Tomoyuki Inoue2 and Gary S Firestein11Division of Rheumatology, Allergy and Immunology, UCSD School of Medicine, ... arthritis synoviocytes. J Clin Invest 1990,86:1790-1798.4. Alvaro-Gracia JM, Zvaifler NJ, Brown CB, Kaushansky K, FiresteinGS: Cytokines in chronic inflammatory arthritis. VI. Analysis of the synovial...