In uterine corpus endometrial carcinoma (UCEC), head and neck squamous cell carcinoma (HNSC), and Cervical squamous cell carcinoma (CESC), Th1 cell infiltration positively correlates with USP30-AS1 expression (P < 0.0001, correlation coefficient >0.3). Here, USP30 is linked to cervical squamous cell carcinoma.