For example, a recent study found that targeting PRMT5 activity by DW47800 inhibits the malignancy of HCC by downregulating the binding of H4R3me2s to the HNF4α promoter.223 Meanwhile, AMI-1, a small molecule inhibitor of PRMTs, was demonstrated to strongly inhibit proliferation and migratory activity in HCC and GC, along with a decreased expression levels of H4R3me2s and H3R8me2s.224,225. This evidence concerns the gene HNF4A and hepatocellular carcinoma.