Figure 6.
Effects of LTB4 (ONO 4057) and PAF receptor (TCV 309) antagonists on the released neutrophil (A) and monocyte (B) chemotactic activity obtained from A549 cell monolayers incubated with 5% smoke extract for 72 hours (n = 8). Percentage of the chemotactic activity is on the ordinate, and the experimental groups are on the abscissa. *P < 0.05 compared with the smoke-extract-exposed supernatant fluids.