HNRNPA2B1 and posterior cortical atrophy: Additionally, an RNA immunoprecipitation (RIP) assay conducted via qRT-PCR showed that circPDLIM5 was enriched by hnRNPA2B1 in PCa cells, further confirming that hnRNPA2B1 could combine with circPDLIM5 (Fig. 6F and Supplemental Fig. 6B).