HECTD1 and posterior cortical atrophy: The luciferase reporter assay results showed that miR-3064-5p can directly target HECTD1 in PCa cells (Figures 6(f) and 6(g)), and HECTD1 expression was downregulated by circGFRA1 knockdown and upregulated when miR-3064-5p mimic was co-transfected into PCa cells (Figures 6(h) and 6(i)).