MYC and breast cancer: Furthermore, the overexpression and downregulation vectors for LncRNA SNHG15 (Additional file 3: Figure S3A) and miR-451 (Additional file 3: Figure S3B) were delivered into BC cells, and we evidenced that LncRNA SNHG15 positively regulated (Fig. 2g–i), while miR-451 negatively modulated c-Myc in BC cells (Fig. 2j–l).