Dong et al. (2022) reported that FCER1G is positively associated with macrophage infiltration and contributes to poor prognosis by modulating tumor immunity in clear cell renal cell carcinoma. Through our PCR verification results, it can be seen that the expressions of DAB2 and FCER1G are not completely consistent with the TCGA database, which may be related to cell heterogeneity. This evidence concerns the gene DAB2 and clear cell renal carcinoma.