USP7 and cancer: To understand whether the expression of USP7 is required for tumor progression in cancer patients and the association between the expression of mitotic factors and USP7, we analyzed the genomes of patients with lung adenocarcinoma (Figure 2a), lung squamous cell carcinoma (Figure 2b), and prostate adenocarcinoma (Figure 2c), using data from The Cancer Genome Atlas (TCGA).