A. 3H-Anandamide accumulation in human BeWo trophoblast cells. Untreated BeWo cells were trypsinized and
subjected to the 3H-AEA (100 nM) transport assay as described in Materials and Methods. During the uptake and efflux
phase, cells were incubated in the presence of Ko143 (1 μM), MM-22 (25 μM), or DMSO. One set of cells was incubated
at 4°C for the duration of the assay. Data are presented as mean ± SE (n = 6). B. Competitive inhibition of Hoechst
33342 efflux in BeWo cells. Untreated BeWo cells were trypsinized and subjected to either the Hoechst 33342 (5 μM) cell
accumulation assay as described in the Materials and Methods in the presence of vehicle, AEA (10 μM), or Ko143 (1
μM) during the uptake and efflux phase. Data are presented as mean ± SE (n = 3). Asterisks (*) represent
statistically significant differences (p < 0.05) compared to control cells.