LncRNA PVT1 REGULATES GALLBLADDER CANCER PROGRESSION THROUGH miR-30d-5p

Gallbladder cancer (GBC) is a malignant tumors that develops insidiously and rapidly. In this work, we explored the function of long non-coding RNA plasmacytoma variant translocation 1 (lncRNA PVT1) in modulating GBC development. PVT1 and miR-30d-5p expression were detected by real-time fluorescent quantitative polymerase chain reaction (qRT-PCR). The relationship of PVT1 and miR-30d-5p was analyzed by Dual luciferase activity and Spearman correlation analysis. The effect of PVT1 on GBC progression was detected by cell counting kit-8 (CCK-8) and Transwell assay. In GBC tissues and cell lines, upregulation of PVT1 and downregulation of miR-30d-5p were observed. PVT1 silencing suppressed cell proliferation and invasion of GBC cells. Based on the analysis of Dual luciferase activity and Spearman correlation, miR-30d-5p was confirmed as a target of PVT1, and their expression had a negative correlation in GBC tissues. Additionally, miR-30d-5p inhibitor could reverse the effects of PVT1 knockdown. These data demonstrated that PVT1 facilitated to GBC tumorigenesis by promoting cell proliferation and invasion via miR-30d-5p, indicating that PVT1 may be a potential biomarker of GBC diagnosis and treatment.