TP53 and hepatocellular carcinoma: In particular, they performed a microarray analysis in a large cohort of human HCCs and HCC cell lines that were previously classified by p53 status and identified nine p53-upregulated miRNAs (miR-141, miR-192, miR-193b, miR-194, miR-200b, miR-200c, miR-215, miR-224 and miR-34a).