In 2020, Xiong et al. mentioned in their research that the expression level of SLC7A11 in cystine/glutamic acid transporter was significantly increased in ESCC patients, and it was verified by data mining analysis that SLC7A11 was a differentially expressed gene, and the survival prognosis of its highly expressed patients was poor. Here, SLC7A11 is linked to esophageal squamous cell carcinoma.