EBF3 and breast carcinoma: Furthermore, silencing EBF3 in SNORA47-overexpressing breast cancer cells resulted in the disappearance of changes in c-Myc expression (Fig. S4 G-H), whereas overexpression of EBF3 did not alter the effect of SNORA47 knockdown on c-Myc expression in breast cancer cells (Fig. S4I-J).