SLC7A11 and hepatocellular carcinoma: At the same time, Kaplan-Meier analysis using the TCGA database revealed that high lncRNA SLC7A11-AS1 levels in HCC tissues are significantly correlated with shorter overall survival (OS) (P = 0.0031; log-rank test; Figure 6F) and recurrence-free survival (RFS) (P = 0.0014; log-rank test; Figure 6G).