Fig. 1From: CircZFR functions as a sponge of miR-578 to promote breast cancer progression by regulating HIF1A expressionCircZFR was overexpressed in BC and associated with poor prognosis. CircZFR expression by qRT-PCR in 70 pairs of tumor tissues and adjacent normal tissues (a), MCF10A, MCF7, BT-549, MDA-MB-231 and MDA-MB-453 cell lines (b). c Analysis for the overall survival of BC patients in high (n = 35) or low (n = 35) circZFR level group divided by the median of circZFR expression in BC tissues using Kaplan–Meier survival analysis and log-rank test. *P < 0.05Back to article page