Fig. 9

Correlation between ADORA2B expression and immunotherapy response. Violin plots comparing the expression levels of immune checkpoint molecules between high- and low-ADORA2B expression groups in HNSC patients (a). Kaplan-Meier survival analysis of patients from the IMvigor210 cohort (GSE145281) stratified by ADORA2B expression, showing improved survival outcomes in the low-ADORA2B expression group following ICB therapy (b). Violin plot comparing ADORA2B expression levels between patients with CR/PR and those with SD/PD after ICB treatment (c). Abbreviations: HNSC, head and neck squamous cell carcinoma; ICB, immune checkpoint blockade; CR, complete response; PR, partial response; SD, stable disease; PD, progressive disease. Statistical significance: *p < 0.05, **p < 0.01, ***p < 0.001, ****p < 0.0001, ns: not significant