LINC00174 and thymic carcinoma: To address this, we first overexpressed (Fig. 2A) or inhibited (Fig. 2B) miR-145-5p in thymic carcinoma TC1889 cells and observed, respectively, the downregulation (Fig. 2A) or the upregulation (Fig. 2B) of LINC00174 and LINC00174-related signature, confirming that they depend on miR-145-5p activity.