The HPV-positive HNSC tumors and cytomegalovirus-positive colon and rectum adenocarcinoma tumors also had higher expression of NK T-cell markers (perforin, GMP-17, and granzymeA) and CD45 compared with virus-negative HNSC and colon and rectum adenocarcinoma tumors. This evidence concerns the gene NKG7 and rectum adenocarcinoma.