ZNF407-AS1 and neoplasm: Additionally, the correlation between LINC00909 expression and the clinicopathological features of patients with PDAC indicated that LINC00909 OE was correlated with advanced TNM stage (P < 0.05), larger tumor size (P < 0.05), poorer differentiation (P < 0.05), and more lymph node metastasis (P < 0.01) (Table S3 and Fig. 1G).