Fig. 4.
FPR phosphorylation and MAP kinase activation induced by T20/DP178. FPR phosphorylation was measured by incubating [32P]-orthophosphate–labeled ETFR cells with medium alone or T20/DP178 at 37°C for 15 minutes, and the same amount of cell lysate for each treatment was immunoprecipitated with an antiepitope (anti-HA) antibody (A). MAPK activation was examined in human monocytes by treatment of the cells with different concentrations of T20/DP178 at various time intervals and immunoprecipitation of the cell lysates with an anti-p38 MAPK antibody, followed by immunoblotting with a mouse antiphosphotyrosine antibody (B). In time-course experiments of MAPK activation, 10 μmol/L T20/DP178 was used.