Abstract
Glioma is the most frequent primary malignant brain tumor, which is characterized by high incidence and mortality, with a poor prognosis. Numerous studies have revealed the abnormal expression of long non-coding RNAs in gliomas. This study explored the effects and potential mechanism of LINC00663 in glioma. The LINC00663 levels and their prognostic values were analyzed from the GEO databases using bioinformatics. Also, LINC00663 expression in tissue samples and cell lines was measured using qRT-PCR. The roles of LINC00663 in glioma were confirmed using CCK8, EdU assay as well as Transwell tests. Moreover, the influences of LINC00663 on the AKT/mTOR signal cascades were detected using western blotting assay. LINC00663 expression was higher in both glioma tissues and cell lines than that in the normal brain tissues and human astrocytes. High expression of LINC00663 led to the low overall survival rate of patients with glioma. LINC00663 knockdown notably restrained cell proliferation, migration, and invasion abilities by decreasing the activation of AKT and mTOR. This study indicated that LINC00663 might have a cancer-promoting role in accelerating glioma development and progression through regulating AKT/mTOR pathway.
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Acknowledgements
The authors acknowledge and appreciate their colleagues for their valuable efforts and comments regarding this paper. Special thanks to professor Hui Zeng, Liuluan Zhu and Institute of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, for their kind support.
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The study was supported by Grants from the National Natural Science Foundation of China (No. 81572474).
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MP performed the experiments, all statistical analyses, and drafted the manuscript. JS contributed to design, data acquisition, interpretation and critically revised the manuscript. SY, HM and CH conducted the experiments. YW designed, supervised the experimental work and critically revised the manuscript.
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The study protocol was approved by the Ethics Committee of Beijing Tiantan Hospital, Capital Medical University.
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Pan, M., Shi, J., Yin, S. et al. The Effect and Mechanism of LINC00663 on the Biological Behavior of Glioma. Neurochem Res 46, 1737–1746 (2021). https://doi.org/10.1007/s11064-021-03311-3
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DOI: https://doi.org/10.1007/s11064-021-03311-3