CD8A and head and neck squamous cell carcinoma: Consistent with the results obtained for HNSCC-56, CD8+ T cells expressing an HLA-A*03:01–restricted, KRASG12V-specific TCR (24) were able to recognize NCI-H2444 cells but not CaSki cells, which express HLA-A*03:01 but not KRASG12V (Figure 6D).