We further investigated the prognostic significance of BMI1 in NSCLC and observed a strong correlation between high BMI1 expression and lower overall survival (OS) in NSCLC patients, as evidenced by Kaplan–Meier analysis (p < 0.001), indicating that BMI1 is also a prognostic indicator for NSCLC (Fig. 3L left panel). Here, BMI1 is linked to non-small cell lung carcinoma.