To further evaluate the influence of IGF2BP2 on LINC01133-induced proliferation and metastasis of ER+ breast cancer, IGF2BP2 was transiently transfected into LINC01133-upregulated cells, and siRNA targeting IGF2BP2 was transiently transfected into LINC01133-downregulated cells. This evidence concerns the gene IGF2BP2 and breast cancer.