To further clarify the relationship between KRT17 and tumor-infiltrating immune cells, we used the TIMER, CIBERSORT, CIBERSORT-abs, Quantiseq, Xcell, MCPCounter, and EPIC methods to investigate the potential relationship between the level of infiltration of different immune cells and the expression of the KRT17 gene in different types of cancer in TCGA database. The gene discussed is KRT17; the disease is cancer.