SLC7A11 and neoplasm: Using the Tumor Immune Estimation Resource (TIMER) [25,26] to analyze the Cancer Genome Atlas (TCGA) database, we found that the expression of SLC7A11 was significantly higher (p < 0.001) in liver HCC (denoted as LIHC in the TIMER database) tumors (Supplementary Figure S3A) compared with their adjacent normal tissues.