Open Access

Intermittent calorie restriction enhances epithelial-mesenchymal transition through the alteration of energy metabolism in a mouse tumor model

  • Authors:
    • Osamu Kusuoka
    • Rina Fujiwara-Tani
    • Chie Nakashima
    • Kiyomu Fujii
    • Hitoshi Ohmori
    • Takuya Mori
    • Shingo Kishi
    • Yoshihiro Miyagawa
    • Kei Goto
    • Isao Kawahara
    • Hiroki Kuniyasu
  • View Affiliations

  • Published online on: December 18, 2017     https://doi.org/10.3892/ijo.2017.4229
  • Pages:413-423
  • Copyright: © Kusuoka et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

The effect of intermittent calorie restriction (ICR) on cancer is controversial. In this study, we examined the effects of ICR and food content in syngeneic BALB/c mice injected with CT26 mouse colon cancer cells. Mice were subjected to 24-h fasting once a week for 4 weeks, and then provided with a control, high-calorie, or trans fatty acid-rich diet. While ICR resulted in increases in tumor weights, metastasis and in the number of cancer stem cells (CSCs) in the tumors or blood of mice fed the control and high-fat diets, it had no effect on body weight after 4 weeks. In particular, we detected increases in the numbers of CSCs in the tumor or blood on the day after starvation, when food overconsumption was detected. Conversely, continuous calorie restriction had no effect on tumor weight, metastasis, or the number of CSCs in tumors or blood. In the post-starvation period, energy metabolism in the tumor was altered from oxidative phosphorylation to glycolysis/lactate fermentation, with the acquisition of the epithelial-mesenchymal transition (EMT) phenotype. Hyperglycemia at the post-starvation period induced the expression of insulin-like growth factor-1, hypoxia-induced factor-1α and Nanog, as well as the phosphorylation of Stat3. Taken together, these findings suggest that ICR induces an increase in the number of CSCs and enhances EMT by promoting the Warburg/Crabtree effect following post-fasting food overconsumption.

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February 2018
Volume 52 Issue 2

Print ISSN: 1019-6439
Online ISSN:1791-2423

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APA
Kusuoka, O., Fujiwara-Tani, R., Nakashima, C., Fujii, K., Ohmori, H., Mori, T. ... Kuniyasu, H. (2018). Intermittent calorie restriction enhances epithelial-mesenchymal transition through the alteration of energy metabolism in a mouse tumor model. International Journal of Oncology, 52, 413-423. https://doi.org/10.3892/ijo.2017.4229
MLA
Kusuoka, O., Fujiwara-Tani, R., Nakashima, C., Fujii, K., Ohmori, H., Mori, T., Kishi, S., Miyagawa, Y., Goto, K., Kawahara, I., Kuniyasu, H."Intermittent calorie restriction enhances epithelial-mesenchymal transition through the alteration of energy metabolism in a mouse tumor model". International Journal of Oncology 52.2 (2018): 413-423.
Chicago
Kusuoka, O., Fujiwara-Tani, R., Nakashima, C., Fujii, K., Ohmori, H., Mori, T., Kishi, S., Miyagawa, Y., Goto, K., Kawahara, I., Kuniyasu, H."Intermittent calorie restriction enhances epithelial-mesenchymal transition through the alteration of energy metabolism in a mouse tumor model". International Journal of Oncology 52, no. 2 (2018): 413-423. https://doi.org/10.3892/ijo.2017.4229