Abstract
Long non-coding RNAs (lncRNAs) serve an important role in the progression of cancer. LINC00659 was recently identified as a novel oncogenic lncRNA involved in colon cancer cell proliferation via modulating the cell cycle. However, the function of LINC00659 in other types of cancer, especially in gastric cancer (GC), remains unknown. In the present study, bioinformatics analysis combined with cell experiments were performed to explore the function of LINC00659 in GC. It was revealed that LINC00659 expression was significantly upregulated in GC tissues and cell lines. Increased levels of LINC00659 were associated with advanced tumor stage and unfavorable prognosis of patients with GC. Additionally, upregulated LINC00659 expression promoted the migration and invasion of GC cells. Further analysis using a bioinformatics method revealed that matrix metalloproteinase 15 and IQ motif-containing GTPase activating protein 3 were potential downstream targets of LINC00659 involved in tumor metastasis, although the precise underlying mechanism requires further exploration.
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