It manifested that the apoptosis rate of CD8+ cells in LC increased obviously in the IFN-γ+mimics-NC group, but the apoptosis of CD8+ cells was inhibited after coculture, suggesting that upregulating miR-760 suppressed CD8+ cell apoptosis by inhibiting IDO1, thus inhibiting tumor immune escape. The gene discussed is IDO1; the disease is neoplasm.