Wei et al. reported that SLC-related genes (e.g., genes such as SLC5A1, SLC3A1, etc.)are correlated with predicting prognosis in ccRCC, indicating their role in the immune environment, and suggesting SLC-related genes as promising therapeutic targets (Bao et al., 2023; Wang and Zou, 2020). The gene discussed is CCL21; the disease is nonpapillary renal cell carcinoma.