Figure 6.

LPS stimulates the type I–like phenotype to secrete MCP-1 and MIP-2. Type I–like cells were stimulated with increasing concentrations of LPS (1–100 ng/ml) for 18 h. The medium was changed, and cells were cultured for 24 h before harvest for different assays. (A and B) The amount of MCP-1 and MIP-2 secreted in response to LPS. (C) The increase in nitrite in the medium. Each value represents the mean ± SEM of triplicate determinations. The results are representative of two independent experiments. ^#P < 0.05 compared with control.