HNRNPC and gastric cancer: To further prove that LINC00924 facilitates gastric cancer peritoneal metastasis via hnRNPC, we constructed stable LINC-NC, LINC-OE, LINC00924-OE + hnRNPC-NC and LINC00924-KD + hnRNPC-KD in MGC-803 cells (5 × 106 cells in 40 μl of serum-free medium containing 50% Matrigel), which were subserosal injected into the greater curvature of the stomach (Supplementary Fig. 4C).