Figure 6. Validation of exosomal circ_0026129, miRNA-15a-5p and ATP6V1A expression and their molecular binding in endometriosis. (A–C) The relative expression of circ_0026129, miRNA-15a-5p and ATP6V1A, assessed using RT-PCR. (D, E) Luciferase reporter assay confirming that miRNA-15a-5p could bind to ATP6V1A and circ_0026129 in 293A cells.