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ALKBH5 Promotes the Proliferation of Glioma Cells via Enhancing the mRNA Stability of G6PD

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Abstract

This study aims to investigate the biological role of 6-methyladenine (m6A) methylation in inducing the carcinogenesis of glioma and its proliferation. Relative levels of ALKBH5 and glucose-6-phosphate dehydrogenase (G6PD) in glioma tissues and cell lines were determined by quantitative real-time polymerase chain reaction (qRT-PCR) and Western blot. Gain-of-function and loss-of-function approaches were used to investigate the role of ALKBH5 in mediating proliferation and energy metabolism of glioma cells. The regulatory effect of ALKBH5 on G6PD was analyzed using m6A-qRT-PCR. Our results showed that ALKBH5 was upregulated in glioma, which stimulated glioma cells to proliferate. Serving as a m6A eraser, ALKBH5 demethylated the target transcript G6PD and enhanced its mRNA stability, thereby promoting G6PD translation and activating the pentose phosphate pathway (PPP). Collectively, ALKBH5 stimulates glioma cells to proliferate through erasing the m6A methylation of G6PD, which can be utilized as a potential therapeutic target for glioma.

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Acknowledgements

This study was supported by Scientific Research Fund Project of Hebei Provincial Health Commission (20211353).

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Authors and Affiliations

  1. Department of Neurosurgery, Cangzhou Central Hospital, No. 16, Xinhua West Road, Cangzhou, 061001, Hebei, China

    Zhifeng Liu, Yonghan Chen & Leilei Wang

  2. Department of Emergency, Cangzhou Central Hospital, Cangzhou, China

    Suzhen Ji

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  1. Zhifeng Liu
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  2. Yonghan Chen
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Correspondence to Zhifeng Liu.

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Liu, Z., Chen, Y., Wang, L. et al. ALKBH5 Promotes the Proliferation of Glioma Cells via Enhancing the mRNA Stability of G6PD. Neurochem Res 46, 3003–3011 (2021). https://doi.org/10.1007/s11064-021-03408-9

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  • DOI: https://doi.org/10.1007/s11064-021-03408-9

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