In addition, miR-22-3p is reported to play an essential role in the regulation of HCC progression.19 In the ceRNA network, PPP1R9A was a target of hsa-miR-22-3p, and AC005523.2 may act as the sponge of hsa-miR-22-3p to capture PPP1R9A in HCC recurrence after LT. The gene discussed is PPP1R9A; the disease is hepatocellular carcinoma.