Fig. 3From: CTLA4 DNA methylation is associated with CTLA-4 expression and predicts response to immunotherapy in head and neck squamous cell carcinomaAssociation of CTLA4 DNA methylation with ICB therapy response and patients’ survival in HNSCC. a Association of CTLA4 DNA methylation with therapy response in a cohort of N = 29 ICB-treated HNSCC patients. Therapy response was grouped in progressive disease (PD), stable disease (SD), and partial response (PR). b Kaplan–Meier analysis of progression-free survival in HNSCC patients stratified according to CTLA4 methylation in pre-ICB-treatment samples. c Kaplan–Meier analysis of overall survival in HNSCC patients stratified according to CTLA4 methylation in pre-ICB-treatment samples. Patient samples were dichotomized based on an optimized cut-offBack to article page