FBXL19 and breast carcinoma: For example, the lncRNA FBXL19-AS1 can play a regulatory role in the proliferation, migration and invasion of osteosarcoma cells through sponge binding to miR-346 (Pan et al., 2018) and promotes breast cancer cells proliferation and invasion via acting as a molecular sponge to miR-718 (Ding et al., 2019).