Abstract
This study is carried out to elucidate the role of long noncoding RNAs (lncRNAs) MT1JP in proliferation, invasion, migration, and apoptosis of glioma cells through the regulation of PTEN/Akt signaling pathway. The expression of MT1JP in 80 normal brain tissues and 138 glioma tissues, as well as glioma cell lines, was detected by quantitativereverse-transcription polymerase chain reaction. Besides, glioma cells with overexpression and low expression of MT1JP were constructed to confirm the role of MT1JP in proliferation, invasion, migration, and apoptosis of glioma cells and the growth of glioma cells in vivo through the regulation of PTEN/Akt signaling pathway. MT1JP expression was downregulated in glioma tissues and cells. The low expression of MT1JP was considered as an independent risk factor for predicting overall survival in gliomas. After transfection of MT1JP overexpression plasmid, glioma cells showed decreased proliferation, migration and invasion ability, increased apoptosis rate, and decreased the tumorigenic ability of nude mice. The trends were opposite in glioma cells transfected with MT1JP poor expression plasmid. Collectively, our study suggests that lncRNA MT1JP is responsible for inhibiting proliferation, invasion, and migration while promoting apoptosis of glioma cells through the activation of PTEN/Akt signaling pathway.
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