Abstract
microRNA-129-5p may have a relationship with laryngeal squamous cell carcinoma (LSCC), but the expression and function of miRNA-129-5p are not fully understood. This study was performed to investigate the expression and function of miRNA-129-5p in LSCC and its effects on STAT3. HBE and Hep-2 cells were cultured and analyzed by western blotting and real-time PCR. miR-129-5p expression was detected by real-time PCR. Hep-2 cells were transfected with a miR-129-5p expression vector. Cell proliferation, invasion, migration, cell cycle, and apoptosis assays were used to determine the role of miRNA-129-5p in the growth, invasion, and migration of LSCC cells and to determine the importance of STAT3 in these effects. STAT3 mRNA expression in Hep-2 cells was significantly higher than that in HBE cells (P < 0.05). miR-129-5p expression detected by real-time PCR showed that it was expressed at a lower level in Hep-2 cells than in HBE cells (P < 0.05). Compared with the control cells, the transfected cells showed lower STAT3 mRNA expression. For up to 7 days in culture, the transfected cells showed lower proliferation than the control cells (P < 0.05). After 24 h in culture, the apoptosis rate in miR-129-5p-transfected cells was 3.48 ± 0.38...Continue Reading
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