Abstract
This study aimed to explore the influence of Tryptophanyl-tRNA synthetase (WARS) expression on the proliferation and migration of uveal melanoma (UM) cells, and the potential mechanisms. Bioinformatics analysis based on Gene Expression Omnibus (GEO) database showed that WARS expression in metastatic cancer was significantly higher than that in no-metastatic group. Kaplan-Meier analysis based on The Cancer Genome Atlas (TCGA) database showed that high WARS expression was associated with lower survival. Biological function experiments showed that overexpression of WARS in OCM-1A cells can promote cell proliferation, migration, and invasion, whereas knockdown of WARS in C918 cells showed the opposite effect. Finally, we observed that the up-regulation of WARS induced the activation of phosphatidylinositol 3-kinase/AKT (PI3K/AKT) signaling, whilst depletion of WARS resulted in opponent outcomes. Taken together, our results illustrated that WARS was overexpressed in UM cells and contributed to the viability and motility of UM cells via modulating PI3K/AKT signaling pathway.
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