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  1. Home
  2. Selenium Attenuates Ethanol-induced Hepatocellular Injury By Regulating Ferroptosis And Apoptosis.
  1. Home
  2. Selenium Attenuates Ethanol-induced Hepatocellular Injury By Regulating Ferroptosis And Apoptosis.

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Selenium Attenuates Ethanol-induced Hepatocellular Injury by Regulating Ferroptosis and Apoptosis.

Feng Chen1, Qianhui Li1, Xiaomin Xu1

  • 1Division of Gastroenterology, Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, China.

The Turkish Journal of Gastroenterology : the Official Journal of Turkish Society of Gastroenterology
|October 16, 2024

View abstract on PubMed

Summary
This summary is machine-generated.

Selenium protects liver cells from alcohol damage by regulating ferroptosis, a specific cell death pathway. This study shows selenium supplements can improve alcoholic liver disease by reducing oxidative stress and cell death markers.

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Area of Science:

  • Cell Biology
  • Biochemistry
  • Toxicology

Background:

  • Ferroptosis, a novel form of regulated cell death, is implicated in various diseases.
  • The protective role of selenium against ethanol-induced hepatocyte injury via ferroptosis remains unclear.

Purpose of the Study:

  • To investigate the effect of selenium on ethanol-induced hepatocyte injury.
  • To elucidate the role of the ferroptosis pathway in alcoholic liver disease (ALD) and selenium's intervention.

Main Methods:

  • Established in vitro (NCTC clone 1469 cells) and in vivo (mouse ALD model) systems.
  • Assessed cell viability, lipid peroxidation, apoptosis, and ferroptosis markers (GPX4, SLC7A11, ACSL4).
  • Utilized serum liver function tests, tissue staining, and immunohistochemistry for in vivo analysis.

Main Results:

  • Selenium (selenomethionine, ebselen) pretreatment improved hepatocyte viability, GSH, and SOD activity, while reducing MDA and iron content.
  • Selenium modulated apoptosis and ferroptosis markers (GPX4, SLC7A11, ACSL4) in ethanol-exposed hepatocytes.
  • In vivo, selenium and ferrostatin-1 mitigated liver damage, reduced ALT/AST levels, and altered ferroptosis protein expression in ALD mice.

Conclusions:

  • Ethanol-induced hepatocyte injury is regulated by the ferroptosis pathway.
  • Selenium demonstrates a protective effect against alcoholic liver injury by combating oxidative stress and modulating apoptosis and ferroptosis.