(96) reported that miR-570 was downregulated in HCC cell lines (including Bel-7404, Huh-7, and HepG2 cells), and the results of flow cytometry showed that the ratio of CD8+IFN-c+ T cells was markedly higher, while the ratio of CD3+CD4+ T cells was lower in the peripheral blood of nude mice injected with miR-570 mimics than that of those injected with NC-transfected SMMC7721 cells, suggesting that miR-570 might play a key role in the immune escape of HCC. The gene discussed is CD8A; the disease is hepatocellular carcinoma.