MKI67 and neoplasm: The tumor weight and volume of mice in the CELF1-KO group decreased significantly compared with those in the control group, and the expression of the cell proliferation indicator Ki-67 also decreased; we also found that CELF1-KO combined with the GLUT1 inhibitor BAY876 inhibits the proliferation of breast cancer cells in vivo in the subcutaneous tumor implantation experiment in nude mice (Figures 7A–E).