Open Access

Fumarate hydratase inhibits non‑small cell lung cancer metastasis via inactivation of AMPK and upregulation of DAB2

  • Authors:
    • Anupama Vadhan
    • Yi-Fang Yang
    • Yun-Ming Wang
    • Pang-Yu Chen
    • Shey-Cherng Tzou
    • Kuang-Hung Cheng
    • Stephen Chu-Sung Hu
    • Tian-Lu Cheng
    • Yen-Yun Wang
    • Shyng-Shiou F. Yuan
  • View Affiliations

  • Published online on: December 9, 2022     https://doi.org/10.3892/ol.2022.13627
  • Article Number: 42
  • Copyright: © Vadhan et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Lung cancer is one of the leading causes of cancer mortality worldwide. As it is often first diagnosed only when cancer metastasis has already occurred, the development of effective biomarkers for the risk prediction of cancer metastasis, followed by stringent monitoring and the early treatment of high‑risk patients, is essential for improving patient survival. Cancer cells exhibit alterations in metabolic pathways that enable them to maintain rapid growth and proliferation, which are quite different from the metabolic pathways of normal cells. Fumarate hydratase (FH, fumarase) is a well‑known tricarboxylic acid cycle enzyme that catalyzes the reversible hydration/dehydration of fumarate to malate. The current study sought to investigate the relationship between FH expression levels and the outcome of patients with lung cancer. FH was knocked down in lung cancer cells using shRNA or overexpressed using a vector, and the effect on migration ability was assessed. Furthermore, the role of AMP‑activated protein kinase (AMPK) phosphorylation and disabled homolog 2 in the underlying mechanism was investigated using an AMPK inhibitor approach. The results showed that in lung cancer tissues, low FH expression was associated with lymph node metastasis, tumor histology and recurrence. In addition, patients with low FH expression exhibited a poor overall survival in comparison with patients having high FH expression. When FH was overexpressed in lung cancer cells, cell migration was reduced with no effect on cell proliferation. Furthermore, the level of phosphorylated (p‑)AMPK, an energy sensor molecule, was upregulated when FH was knocked down in lung cancer cells, and the inhibition of p‑AMPK led to an increase in the expression of disabled homolog 2, a tumor suppressor protein. These findings suggest that FH may serve as an effective biomarker for predicting the prognosis of lung cancer and as a therapeutic mediator.
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January-2023
Volume 25 Issue 1

Print ISSN: 1792-1074
Online ISSN:1792-1082

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Spandidos Publications style
Vadhan A, Yang Y, Wang Y, Chen P, Tzou S, Cheng K, Hu SC, Cheng T, Wang Y, Yuan SF, Yuan SF, et al: Fumarate hydratase inhibits non‑small cell lung cancer metastasis via inactivation of AMPK and upregulation of DAB2. Oncol Lett 25: 42, 2023
APA
Vadhan, A., Yang, Y., Wang, Y., Chen, P., Tzou, S., Cheng, K. ... Yuan, S.F. (2023). Fumarate hydratase inhibits non‑small cell lung cancer metastasis via inactivation of AMPK and upregulation of DAB2. Oncology Letters, 25, 42. https://doi.org/10.3892/ol.2022.13627
MLA
Vadhan, A., Yang, Y., Wang, Y., Chen, P., Tzou, S., Cheng, K., Hu, S. C., Cheng, T., Wang, Y., Yuan, S. F."Fumarate hydratase inhibits non‑small cell lung cancer metastasis via inactivation of AMPK and upregulation of DAB2". Oncology Letters 25.1 (2023): 42.
Chicago
Vadhan, A., Yang, Y., Wang, Y., Chen, P., Tzou, S., Cheng, K., Hu, S. C., Cheng, T., Wang, Y., Yuan, S. F."Fumarate hydratase inhibits non‑small cell lung cancer metastasis via inactivation of AMPK and upregulation of DAB2". Oncology Letters 25, no. 1 (2023): 42. https://doi.org/10.3892/ol.2022.13627