SEMA3B and breast cancer: In conclusion, we identified a BCSC-related lncRNA signature consisting of 12 lncRNAs (Z68871.1, LINC00578, AC097639.1, AP003119.3, AP001207.3, LINC00668, AL122010.1, AC245297.3, LINC01871, AP000851.2, AC022509.2 and SEMA3B-AS1), which can act as a novel independent prognostic factor for breast cancer.