Thus, to confirm the correlation between MTUS1 expression and immune infiltrating cells in CRC, we analysed the immune markers of T cells, CD8+ T cells, B cells, monocytes, TAMs, M1 and M2 macrophages, neutrophils, NK cells, dendritic cells, Th1 cells, Th2 cells, Th17 cells, TFH cells, Tregs, and T-cell exhaustion using the GEPIA web tool. The gene discussed is CD8A; the disease is colorectal carcinoma.