HSP90AA1 and posterior cortical atrophy: Moreover, the migratory (Fig. 6H, J) and invasive capacities (Fig. 6I, K) of PCa cells were enhanced in response to circRNF19A-aa overexpression, while knockdown of HSP90AA1 in cells stably overexpressing circRNF19A-aa partially inhibited the migration and invasion of PCa cells induced by circRNF19A-aa overexpression alone.