For example, in the research on renal cell carcinoma (RCC), it was found through The Cancer Genome Atlas (TCGA) and Oncomine databases that GPX1 is highly expressed in RCC, and through Kaplan–Meier curve analysis that high GPX1 levels predict a shorter overall survival (OS) time, indicating that GPX1 has potential to be a biomarker for the diagnosis and prognosis of RCC patients (Cheng et al., 2019). The gene discussed is GPX1; the disease is hereditary clear cell renal cell carcinoma.