Figure 6. CCL2-induced expression of COX-2 via FoxO1. Huh-7 cells were transfected with miR-580-5p mimic or hsa_circ_0110102, and then co-cultured with 200 ng/mL PMA pretreated THP-1 cells for 24 h. (A) THP-1 cells were incubated with CD68 and CCR2 antibodies, followed by flow cytometry to analyze the expression of CCR2. (B) CCL2 protein and mRNA levels in THP-1 cells were detected by RT-qPCR and Western blot analysis. (C and D) The levels of CCL2 and PGE2 in the supernatant of the medium were measured using ELISA. (E and F) THP-1 cells were treated with 50 ng/mL rCCL2 and 1 μM AS1842856 for 48 h. (E) The COX-2 protein and mRNA levels were detected with RT-qPCR and Western blot analysis. (F) The levels of COX-2, PGE2, VEGF, and IL-6 in the supernatant of the medium were measured using ELISA. Data are presented as mean ± standard error. *, P < 0.05.