SNHG19 promotes the proliferation and metastasis of hepatocellular carcinoma through regulating the miR-137/protein tyrosine phosphatase 4A3 axis.

OBJECTIVES

Long noncoding RNAs plays the important part in tumor biology. SNHG19 was found to be a new oncogenic lncRNA in some malignant tumors. However, the effect of SNHG19 in hepatocellular carcinoma has not been reported.

METHODS

The expression of SNHG19 in hepatocellular carcinoma tissues were detected by using quantitative Real-Time Reverse Transcription Polymerase Chain Reaction (qRT-PCR). Melanoma cases from The Cancer Genome Atlas were included in this study. cell counting kit-8 assay, Transwell, and scratch wound assay were used to explore the role of SNHG19 in melanoma cells. Luciferase reporter assays and RNA pull-down assay were used to explore the molecular mechanism of SNHG19 in hepatocellular carcinoma.

RESULTS

Here, we found that SNHG19 level was upregulated in hepatocellular carcinoma. Hepatocellular carcinoma patients with high levels of SNHG19 have shorter Disease-Free Survival (RFS). SNHG19 promotes the Protein Tyrosine Phosphatase 4A3 expression by sponging miR-137 to liberate Protein Tyrosine Phosphatase 4A3 mRNA transcripts. SNHG19 enhances the development of hepatocellular carcinoma by affecting miR-137/Protein Tyrosine Phosphatase 4A3 axis.

CONCLUSION

These results demonstrated the effect of SNHG19 in the occurrence and progression of hepatocellular carcinoma. SNHG19 may be used as the specific molecular target in patients with hepatocellular carcinoma.