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Mitochondrial transcription factor B1 promotes the progression of hepatocellular carcinoma via enhancing aerobic glycolysis

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Journal of Cell Communication and Signaling Aims and scope

Abstract

Mitochondrial dysfunctions play crucial roles in the carcinogenesis of various human cancers. However, the molecular mechanisms leading to mitochondrial dysfunction and thus cancer progression remains largely unclear. TFB1M (mitochondrial transcription factor B1) is a mitochondrial DNA-binding protein that activates the transcription of mitochondrial DNA. Our bioinformatics analysis indicated a significant up-regulation of TFB1M in hepatocellular carcinoma (HCC). Here, we investigated its clinical significance and biological functions in this malignancy. Here, we found that TFB1M was significantly upregulated in HCC cells probably due to decreased miR-130a-3p expression. High TFB1M expression was positively associated with poor patient survival in HCC. TFB1M contributes to HCC growth and metastasis by promoting cell cycle progression, epithelia-mesenchymal transition (EMT), and inhibiting cell apoptosis. Mechanistically, the metabolic switch from oxidative phosphorylation to glycolysis contributed to the promotion of tumor growth and metastasis by TFB1M overexpression in HCC cells. In summary, we demonstrate that TFB1M plays a crucial oncogenic role in HCC progression, indicating TFB1M as a promising prognostic marker and therapeutic target in HCC.

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Data availability

He datasets used and/or analysed during the current study are available from the corresponding author on reasonable request. Statement regarding the use of third parties to generate data: No third parties were used to generate data in the present study.

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Abbreviations

TFB1M:

Mitochondrial transcription factor B1

HCC:

Hepatocellular carcinoma

EMT:

Epithelia-mesenchymal transition

PET:

Positron emission tomography

OXPHOS:

Oxidative phosphorylation

TFAM:

Mitochondria transcription factor A

TCGA:

The cancer genome atlas

siRNAs:

Small interference RNAs

cDNA:

Complementary DNA

PVDF:

Polyvinylidene difluoride

H&E:

Hematoxylin and eosin

IHC:

Immunohistochemical

miRNAs:

MicroRNAs

AML:

Acute myeloid leukemia

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Acknowledgements

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Funding

This study was supported by the National Natural Science Foundation of China (Grant 81802345), China Postdoctoral Science Foundation funded project (Grant 2019M663984) and National Science Basic Research Plan in Shaanxi Province of China (Grants 2020JM-318 and 2020JM-327). Young Scientists Fund, 81802345, Peng Yuan.

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Authors

Contributions

JM, ZW and FL performed most of the experiments and analyzed data; RT, BZ and PQ participated in the in vitro and vivo study. HZ and JY designed the overall study, supervised the experiments. JM and YT wrote the paper. YT and PY revised the paper. PY and HZ acquired the funding. All authors read and approved the final manuscript.

Corresponding authors

Correspondence to Hongxin Zhang, Jingyue Yang or Peng Yuan.

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Competing interests

The authors declare that they have no competing interests.

Ethics statement

This study was approved by the institutional ethics committee of the Air Force Military Medical University.

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Written informed consents have been obtained from all subjects.

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Mu, J., Tian, Y., Liu, F. et al. Mitochondrial transcription factor B1 promotes the progression of hepatocellular carcinoma via enhancing aerobic glycolysis. J. Cell Commun. Signal. 16, 223–238 (2022). https://doi.org/10.1007/s12079-021-00658-8

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  • DOI: https://doi.org/10.1007/s12079-021-00658-8

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