Figure 10.

Validation of exosomal circLDLR regulation on CYP19A1 via miR-1294 by luciferase activity assay. The relative luciferase activity was measured following transfection of the wild-type or mutant CYP19A1 3’-UTR in recipient KGN cells after treated with (A) over-expressed circLDLR exosome (exo-OE-circLDLR) or (B) knocked down circLDLR exosome (exo-si-circLDLR), to confirm that exosomal transfer of circLDLR is truly regulatory on CYP19A1 expression via its miR-1294 binding site. The firefly luciferase activities were normalized by renilla luciferase activities. The experiments were performed independently in triplicates. ** indicates p < 0.01, NS indicates no significant difference. The results are presented as means ±SEM.