Finally, since the Affymetrix probe set used to identify LINC01119 expression (probe 230799_at) in clinical specimens cannot distinguish between the different LINC01119 isoforms, we conducted laser-capture dissection of breast cancer cells from breast cancer samples of basal-like breast cancers (BLBC), luminal A, luminal B, and HER2 tumors and processed their RNA for qRTPCR using primers specific for isoform 3. Here, ERBB2 is linked to breast cancer.