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Background Hint1  is a novel tumor suppressor gene, and inactivation of its expression is closely associated with the carcinogenesis of a variety of malignancies. The effects of  Hint1  deficiency on the competing endogenous RNA (ceRNA) regulatory network in the context of HCC remains to be fully characterized. This study aims to explore  Hint1 -related hub lncRNAs in HCC and to establish a reliable prognostic model for HCC patients based on these hub lncRNAs. Methods lncRNA + mRNA microarray was used to identify differentially expressed (DE) lncRNAs and mRNAs in Huh7 cells before and after  Hint1  knockdown. A  Hint1 -related ceRNA network was mapped by bioinformation technology. The DEmRNAs in the network were analyzed via GO and KEGG enrichment analyses. Hub DElncRNAs associated with HCC patient prognosis were then detected through univariate and multivariate Cox regression analyses and were incorporated into a prognostic model. The prognostic value of this model was then assessed through the use of Kaplan-Meier curves, time-related ROC analyses, and nomograms. We also utilized Kaplan-Meier curves to validate the relationship between hub lncRNAs and the overall survival (OS) of HCC patients. Finally, A  Hint1 -related core ceRNA network based on the hub DElncRNAs and DEmRNAs was mapped. Results We identified 417 differentially expressed DElncRNAs and 2096 DEmRNAs in Huh7 cells before and after  Hint1  knockdown. Three hub DElncRNAs (LINC00324, SNHG3, and DIO3OS) in the  Hint1 -associated ceRNA network were screened out using univariate and multivariate Cox regression analyses. A hepatocellular carcinoma (HCC) prognostic risk-scoring model and nomogram were constructed using these three hub lncRNAs, and it was confirmed that the risk score of the model could be used as an independent predictor of HCC prognosis. A  Hint1 -related core ceRNA network based on the hub DElncRNAs and DEmRNAs was also mapped. Conclusion We constructed a reliable prognostic model for HCC patients based on three  Hint1 -related hub lncRNAs, and we believe these three hub lncRNAs may play critical roles in hepatocarcinogenesis, and progression.

Integrated analysis of ceRNA network reveals potential prognostic Hint1-related lncRNAs involved in hepatocellular carcinoma progression