Abstract
Glioma is one of the most universally diagnosed malignant tumors in the central nervous system with high mortality and morbidity in the world. Long non-coding long intergenic non-protein coding RNA 319 (LINC00319) exerts promoting function in diverse range of human carcinomas, but its detailed role in glioma remains to be investigated. This study aimed to investigate the potential role and regulatory mechanism of LINC00319 and also its clinical value in glioma. In our study, LINC00319 was expressed at high levels in glioma and closely associated with poor prognosis of patients with glioma, whose knockdown impaired cell proliferation, arrested cell cycle and induced cell apoptosis of glioma. In addition, high expression of high mobility group AT-hook 2 (HMGA2) was found in glioma which was also in positive relation to LINC00319 expression. Moreover, LINC00319 directly bound to TATA-box binding protein associated factor 1 (TAF1) and further regulated HMGA2. Finally, rescue assays verified that LIN00319 modulated the tumorigenesis of glioma by regulating HMGA2. The present research elucidated the function role and underlying mechanism of LINC00319 in glioma and exposed a new insight into the molecular-targeted therapy for glioma.
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