Abstract
Reprogramming of energy metabolism is a hallmark of cancer which is prevalent worldwide. Octamer transcription factor-1 (OCT1) is a well-known transcription factor. However, the role of OCT1 in metabolism remodeling has not been well defined. In the present study, we found that OCT1 was up-regulated in non-small cell lung cancer (NSCLC) and correlated with poor patient survival. Further data identified that OCT1 increased glycolysis flux, promoting proliferation in lung cancer cells. Mechanistically, OCT1 facilitated the aerobic glycolysis and cell proliferation via up-regulation of hexokinase 2 (HK2), a crucial enzyme of the Warburg effect. Hence, our findings indicate that, in NSCLC, high levels of OCT1 contribute to the Warburg effect through up-regulation of HK2, linking up the OCT1/HK2 axis and cancer progression, which provide a potential biomarker and therapeutic target for NSCLC treatment.
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Acknowledgements
The authors are grateful to Dr. Bin Lv (Wenzhou Medical University) for providing clinical lung samples. This research was funded by National Natural Science Foundation of China (81973341, 81902826), Science and Technology Program of Guangzhou (202002030010), and the Fundamental Research Funds for the Central Universities (21620426).
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This study was carried out in accordance with the recommendations of Requirements of the Ethical Review System of Biomedical Research Involving Human by National Health and Family Planning Commission of China, Jinan University and Wenzhou Medical University Ethics Committee with written informed consent from all subjects.
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Li, Z., Su, J., Sun, M. et al. Octamer transcription factor-1 induces the Warburg effect via up-regulation of hexokinase 2 in non-small cell lung cancer. Mol Cell Biochem 476, 3423–3431 (2021). https://doi.org/10.1007/s11010-021-04171-9
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DOI: https://doi.org/10.1007/s11010-021-04171-9