FIS1 and hepatocellular carcinoma: To further investigate the Drp1 and FIS1 mRNA expression of HCC in a larger sample size, three public independent datasets from TCGA (50 paired HCC tissues) and GEO (GSE25097210, 211 paired HCC tissues; GSE36376, 182 paired HCC tissues) were analyzed using a data mining approach in the present study.