PPP1R26 and neuroblastoma: This database revealed that the expression of three lncRNAs was altered significantly in neuroblastoma samples; two were upregulated, namely CASC15 (p < 0.0001, unpaired two-tailed t-test with Welch’s correction) and PPP1R26-AS1 (p < 0.05, unpaired two-tailed t-test with Welch’s correction), and one was downregulated, USP3-AS1 (p < 0.0001, unpaired two-tailed t-test with Welch’s correction) (Figures 4A–C).