In an attempt to identify oncogenic lncRNAs that regulate G1/S transition, we screened for the lncRNAs that were differentially expressed during cell cycle progression and found that lncRNA SnoRNA Host Gene 17 (SNHG17) was upregulated at the early G1-phase and in various cancer types, including hepatocellular carcinoma (HCC). Here, SNHG17 is linked to cancer.