Then, we analyzed the transcriptomes of 320 tumor samples from the GEO dataset cohorts in the discovery phase, in which we identified a luminal subtype-specific lncRNA expression profile integrated using the lncRNAs LINC01016, GATA3-AS1, MAPT-IT1, and DSCAM-AS1, which has been previously described in the literature as a luminal subtype-related lncRNA [30] that were also validated in TCGA and SCAN-B cohorts (Figure 6). The gene discussed is DSCAM; the disease is neoplasm.