In conclusion, our data indicated an involvement of aberrant LINC00467 overexpression in both proliferation, migration, invasion and EMT in vitro and tumor growth and lung metastasis in vivo of breast cancer cells, and uncovered the oncogenic properties of LINC00467 was attributed to LINC00467-mediated miR-138-5p inhibition and LIN28B up-regulation. The gene discussed is LIN28B; the disease is breast cancer.