In Vitro: C29 (10 or 50 μΜ; 1 hour) blocks P3C- and P2C-induced IL-8 mRNA dose-dependently in HEK-TLR2 stable transfectants. C29 (50-200 μM; 1 hour) inhibits P3C- and P2C-induced IL-1β gene expression significantly at both 1 h and 4 h following stimulation in THP-1 cells. ?C29 (25 or 50 μΜ; 1 hour) reduces P3C-induced but not P2C-induced TNF-α mRNA and IL-12 p40 protein significantly in primary murine macrophages. ?C29 (50 μΜ; 1 hour) blocks TLR2 bacterial agonist-induced proinflammatory gene expression in HEK-TLR2 cells and murine macrophages.