KIF18A and neoplasm: 28 days after injection (Fig. 3d), the number of tumours in the shRNA-KIF18A group was 6/6, the number of tumours in the shRNA-NC group was 6/6, and the tumour weight of the shRNA-KIF18A group (0.201 ± 0.088 g) was significantly lighter than that of the shRNA-NC group (0.476 ± 0.126 g) (p = 0.009).