SLC7A11 and hepatocellular carcinoma: It suggested that ferroptosis was highly associated with the immune system, which may function, in part, by regulating the immune system.[40–42] Research on hepatocellular carcinoma,[11] ovarian carcinoma,[43] clear cell renal cell carcinoma,[44] and adrenocortical carcinoma[45] showed that SLC7A11 expression level was closely associated with the TIICs and immune functions.