Ethyl pyruvate induces necrosis-to-apoptosis switch and inhibits high mobility group box protein 1 release in A549 lung adenocarcinoma cells

  • Authors:
    • Sung-Chul Lim
    • Jeong Eun Choi
    • Cho Hee Kim
    • Hong-Quan Duong
    • Gui-Ae Jeong
    • Ho Sung Kang
    • Song Iy Han
  • View Affiliations

  • Published online on: August 1, 2007     https://doi.org/10.3892/ijmm.20.2.187
  • Pages: 187-192
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Abstract

Ethyl pyruvate (EP), a stable lipophilic pyruvate derivative, has been shown to exert anti-inflammatory activities through inhibiting the expression of various pro-inflammatory mediators as well as circulating levels of high mobility group box protein 1 (HMGB1) in a variety of in vitro and in vivo model systems. Necrotic cell death triggers an inflammatory response through release of HMGB1 in the extracellular space due to the membrane rupture. In an effort to better understand the pharmacological action mechanism that could explain the anti-inflammatory properties of EP, we examined the effects of EP on necrotic cell death in A549 lung adenocarcinoma cells in response to glucose deprivation (GD), a common characteristic of the tumor microenvironment. Here we show that EP prevented GD-induced necrosis and HMGB1 release and switched the cell death mode to apoptosis through inhibiting GD-induced CuZn superoxide dismutase release and ROS production. These results suggest that the necrosis-to-apoptosis switch activity of EP may contribute to its anti-inflammatory action and that EP may suppress tumor development possibly through its activity to induce the cell death mode switch from tumor promoting necrotic cell death to tumor suppressive apoptotic cell death.

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August 2007
Volume 20 Issue 2

Print ISSN: 1107-3756
Online ISSN:1791-244X

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Spandidos Publications style
Lim S, Choi JE, Kim CH, Duong H, Jeong G, Kang HS and Han SI: Ethyl pyruvate induces necrosis-to-apoptosis switch and inhibits high mobility group box protein 1 release in A549 lung adenocarcinoma cells. Int J Mol Med 20: 187-192, 2007
APA
Lim, S., Choi, J.E., Kim, C.H., Duong, H., Jeong, G., Kang, H.S., & Han, S.I. (2007). Ethyl pyruvate induces necrosis-to-apoptosis switch and inhibits high mobility group box protein 1 release in A549 lung adenocarcinoma cells. International Journal of Molecular Medicine, 20, 187-192. https://doi.org/10.3892/ijmm.20.2.187
MLA
Lim, S., Choi, J. E., Kim, C. H., Duong, H., Jeong, G., Kang, H. S., Han, S. I."Ethyl pyruvate induces necrosis-to-apoptosis switch and inhibits high mobility group box protein 1 release in A549 lung adenocarcinoma cells". International Journal of Molecular Medicine 20.2 (2007): 187-192.
Chicago
Lim, S., Choi, J. E., Kim, C. H., Duong, H., Jeong, G., Kang, H. S., Han, S. I."Ethyl pyruvate induces necrosis-to-apoptosis switch and inhibits high mobility group box protein 1 release in A549 lung adenocarcinoma cells". International Journal of Molecular Medicine 20, no. 2 (2007): 187-192. https://doi.org/10.3892/ijmm.20.2.187