It was noted that few studies explored the prognostic value of DLGAP1‐AS1 in BC, but the dysregulation of DLGAP1‐AS1 had been reported to function as oncogene roles in several tumour types, including glioma,28 colorectal cancer,29 gastric cancer30, 31 and HCC.32, 33. This evidence concerns the gene DLGAP1 and breast cancer.