DCXR and hepatocellular carcinoma: In addition, siRNAs, normally loaded with lipid nanoparticles, have been applied into clinical tests and some siRNA-based drugs have already accomplished phase 2 clinical trials, such as DCR-MYC for MYC knocking down to arrest the cell cycle in HCC, Atu027 for PKN3 knocking down to modulate cell migration in metastatic pancreatic adenocarcinoma, etc. [3].