CD8A and cancer: Among the 71 T cell clusters, only the percentage of C17, C18, C46, C47, C68, and C70 are significantly different in the adjacent tissues from cancer tissues, among which CD4+ T cell clusters (C46, C47) and CD8+ T cell clusters (C17, C18) were enriched in cancer tissues, and CD4+ T cell clusters (C68, C70) were reduced in cancer tissues (Fig. 3J-O).