LINC01569 and neoplasm: The CCK-8 assay indicated that co-culture of FaDu cells and IL4-exposed macrophages increased cell viability, and LINC01569 siRNA addition in macrophages reduced the effects of M2 macrophages on FaDu cell proliferation from 48 to 96 h, while the miR-193a-5p inhibitor could reverse the anti-tumor effect of LINC01569 siRNA from 72 to 96 h (Fig. 8B).