Cancers such as Head and Neck Squamous Cell Carcinoma, Renal Clear Cell Carcinoma, and Stomach Adenocarcinoma have higher GZMB expression levels compared to lower-expressing GZMB cancers such as Lung Squamous Cell Carcinoma and Lung Adenocarcinoma [39]. Here, GZMB is linked to head and neck squamous cell carcinoma.