HPN-AS1 could be utilized in the diagnosis of prostate cancer (43); LINC00607 facilitates the proliferation and invasion of osteosarcoma (44); USP2-AS1 promotes the progression of colon cancer and ovarian cancer (45, 46); and LINC00638 and LINC00652 have been reported in nontumor diseases (47–50), while no study has revealed the function of the remaining lncRNAs. This evidence concerns the gene HPN and ovarian cancer.