production by BEND cells. Cell culture medium was harvested 6 h after addition of treatments and concentrations of PGE2 were analyzed by ELISA. Treatments included: Control (C), IFNT (I), Pyrrolodine-1 (P), Bromoenol lactone (B), B +I, Phorbol 12, 13 dibutyrate (PD), PD + I, PD + P and PD + B. Treatments were performed in triplicate and repeated (n = 6). Data are expressed as means +/- SEM. Columns with different superscripts are significantly different (p < 0.05).