SOX2 and adenocarcinoma: The expression of SMARCA2 in NSCLC was analyzed further in our study, showing the following relatively high risk factors for the occurrence of SMARCA2-negative expression in NSCLC: male, T3 and T4 stage, moderate and poor differentiation, ≥2 cm tumor, adenocarcinoma, Ki67 ≥ 15%, and SOX-2-negative expression.