USP13 and ovarian cancer: Analysis of the copy number of The Cancer Genome Atlas (TCGA) tumor samples showed that USP13 and MCL-1 were upregulated in many types of tumors, especially in lung adenocarcinoma, lung squamous cell carcinoma, ovarian cancer, and cervical cancer (Zhang et al., 2018; Wu et al., 2019; Morgan et al., 2021).