First, to further investigate the expression pattern of LINC01605 in PDAC, we designed a specific molecular probe to detect LINC01605 and performed IHC staining on our clinical pathology-verified PDAC primary tumor and liver metastasis specimens as well as the corresponding tumor-adjacent tissues obtained from Renji Hospital, School of Medicine, Shanghai Jiao Tong University. This evidence concerns the gene LINC01605 and neoplasm.