Correlation analysis between ST7-AS1 and different clinicopathological features showed that higher ST7-AS1 expression was positively correlated with tumors that metastasized to lymph nodes (P = 0.007), those with advanced TNM stages (stage IIB or III, IV to I or IIA; P = 0.019; Table 1), but reversely with the overall survival of cancer patients (Fig. 1c), suggesting that higher ST7-AS1 expression could be an indicator for LUAD of advanced malignancy and metastasis, as well as worse prognosis. Here, ST7 is linked to cancer.