Effect of anti-inflammatory cytokines (IL-4, IL-10, IL-13 and transforming growth factor-beta (TGF-β)) on fibronectin production by cultured human monocytes stimulated for 24 h with IL-1α, IL-6, tumour necrosis factor-alpha and lipopolysaccharide. □, None; horizontal hatching, IL-4 100 U/ml; vertical hatching, IL-10 100 U/ml; cross-hatched, IL-13 100 U/ml; ▪, TGF-β 100 U/ml (mean ± s.d., n =8; *P <0·01).