FcγR expression on macrophages is related to severity and chronicity of synovial inflammation and cartilage destruction during experimental immune-complex-mediated arthritis (ICA)

Table 2 IL-1 and IL-1Ra production (pg/ml) in knee joints of mice after induction of immune-complex-mediated arthritis (ICA) and zymosan-induced arthritis (ZIA)

Production of IL-1Ra at 6 h and IL-1β at 6 and 24 h after induction of ICA and ZIA in knee joints of three mouse strains. IL-1β was measured using a radioimmunoassay. Data are means ± SD of at least 5 mice and were evaluated using the Mann-Whitney U test (^*P < 0.05). ICA, immune-complex-mediated arthritis; IL-1Ra, IL-1 receptor antagonist; ND = not done; ZIA, zymosan-induced arthritis.