lncRNA BANCR expression is upregulated in BC cells and tissues, which is associated with poor prognosis of patients with BC. (A) The expression of BANCR was detected via RT-qPCR in normal human breast epithelial cell line, MCF10A, noninvasive BC cell lines (MDA-MB-468, MCF7 and HCC1569) and invasive BC cell lines (BT549 and MDA-MB-231). (B) The expression of BANCR in non-cancerous tissues and BC tissues was verified by RT-qPCR. (C) The Kaplan-Meier method and log-rank test were utilized to analyze the difference in OS rate between the low- and high-BANCR-expression groups. (D) The Kaplan-Meier method and log-rank test were used to analyze the difference in RFS rate between the low- and high-BANCR-expression groups. Statistical significance was determined using Student's t-test between indicated columns in (A and B), and by log-rank test in (C and D). *P<0.05, **P<0.01. BC, breast cancer; RT-qPCR, reverse transcription-quantitative polymerase chain reaction; BANCR, BRAF-regulated lncRNA 1; OS, overall survival; RFS, recurrence-free survival.