Recent studies have discovered that lnc030 is highly expressed in breast cancer stem cells (BCSCs) and can work with poly(rC)-binding protein 2 (PCBP2) to stabilize the expression of SQLE. PCBP2 is an RNA-binding protein that acts as an intermediary between lnc030 and SQLE. This evidence concerns the gene SQLE-DT and breast carcinoma.