The upregulation of LINC00461 enhances BC cell invasion by acting as a sponge for miR-30a-5p to regulate integrin [33], and the lncRNA BCRT1 promotes BC invasion by serving as a ceRNA for miR-1303 to relieve the suppressive effect of miR-1303 on its target, PTBP3 [34]. This evidence concerns the gene PTBP3 and breast cancer.