LINC01094 promotes the malignant phenotype of GC in vitro. (A) LINC01094 expression levels in the normal human gastric mucosal cell line (GES-1) and human gastric cancer cell lines. (B) QRT-PCR results showed the knockdown efficacy of ASOs and overexpression efficacy of lentivirus. The migration abilities were weakened after the knockdown of LINC01094 (C) and were strengthened after the overexpression of LINC01094 (D) (objective: 10×). Western blotting was applied to assess the expression levels of EMT and stemness-associated proteins after silencing (E) and overexpressing (F) LINC01094 in HGC-27 and MGC-803 cells, respectively. The colony-formation results showed that the proliferation of HGC-27 and MGC-803 cells was inhibited and strengthened after silencing (G) and overexpressing (H) LINC01094, respectively. (I) The CCK-8 assay showed that silencing LINC01094 weakened the proliferation of HGC-27 and MGC-803 cells. (J) The CCK-8 assay showed that overexpressing LINC01094 strengthened the proliferation of HGC-27 and MGC-803 cells. (K) The EdU assay showed that silencing LINC01094 weakened the proliferation of HGC-27 and MGC-803 cells (objective: 4×). (L) The EdU assay showed that overexpressing LINC01094 strengthened the proliferation of HGC-27 and MGC-803 cells (objective: 4×). (M) Sphere-forming assay showed that LINC01094 overexpression cell lines formed more spheres (objective: 4×). *: p < 0.01, **: p < 0.01, ***: p < 0.001. The scale bar equals 100 or 200 μm, as indicated in each graph.