Cited by 717Drug Transport and Resistance MechanismsDrug-Induced Hepatotoxicity and ProtectionLiver physiology and pathology

Bile-acid-induced cell injury and protection

Open access
Perez, Maria J, Briz, Oscar·2009·World Journal of Gastroenterology

Abstract

Several studies have characterized the cellular and molecular mechanisms of hepatocyte injury caused by the retention of hydrophobic bile acids (BAs) in cholestatic diseases. BAs may disrupt cell membranes through their detergent action on lipid components and can promote the generation of reactive oxygen species that, in turn, oxidatively modify lipids, proteins, and nucleic acids, and eventually cause hepatocyte necrosis and apoptosis. Several pathways are involved in triggering hepatocyte apoptosis. Toxic BAs can activate hepatocyte death receptors directly and induce oxidative damage, thereby causing mitochondrial dysfunction, and induce endoplasmic reticulum stress. When these compounds are taken up and accumulate inside biliary cells, they can also cause apoptosis. Regarding extrahepatic tissues, the accumulation of BAs in the systemic circulation may contribute to endothelial injury in the kidney and lungs. In gastrointestinal cells, BAs may behave as cancer promoters through an indirect mechanism involving oxidative stress and DNA damage, as well as acting as selection agents for apoptosis-resistant cells. The accumulation of BAs may have also deleterious effects on placental and fetal cells. However, other BAs, such as ursodeoxycholic acid, have been shown to modulate BA-induced injury in hepatocytes. The major beneficial effects of treatment with ursodeoxycholic acid are protection against cytotoxicity due to more toxic BAs; the stimulation of hepatobiliary secretion; antioxidant activity, due in part to an enhancement in glutathione levels; and the inhibition of liver cell apoptosis. Other natural BAs or their derivatives, such as cholyl-N-methylglycine or cholylsarcosine, have also aroused pharmacological interest owing to their protective properties.

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  • Bile acids can induce hepatocyte injury, mitochondrial damage, oxidative stress, DNA damage, and hepatocyte necrosis and apoptosis, which drive progression from NAFLD to NASH, fibrosis, and HCC.

    “First, as strong hydrophobic detergents, bile acids can induce hepatocyte injury, mitochondrial damage, oxidative stress, DNA damage, and hepatocyte necrosis and apoptosis, all of which drive the progression of NAFLD to NASH, fibrosis and HCC (Audard et al., 2007; Perez and Briz, 2009).”

    From Circadian Homeostasis of Liver Metabolism Suppresses Hepatocarcinogenesis (2016) · cites this paper as Perez and Briz, 2009

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Research works printed but not linked: 2

  1. H i g u c h i H , B r o n k S F , T a k i k a w a Y , W e r n e b u r g N , T a k i m o t o R , E l -D e i r y W , G o r e s G J . T h e b i l e a c i d glycochenodeoxycholate induces trail-receptor 2/DR5 expression and apoptosis. J Biol Chem 2001; 276: 38610-38618
  2. S c , S c h m i K H . S t r u lipid compositions after binding of different bile salts. Biochemistry 1988; 27: 8787-8794

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Authors
Perez, M. J., & Briz, O.
Venue
World Journal of Gastroenterology
Published
2009
Volume
15
Issue
14
Pages
1677
ISSN
1007-9327 (ISSN-L)
OpenAlex
W2124260053
Cited by
717
References
125
Citations by year
2026: 59 · 2025: 50 · 2024: 42 · 2023: 45 · 2022: 63 · 2021: 61 · 2020: 45 · 2019: 52 · 2018: 53 · 2017: 51 · 2016: 31 · 2015: 31 · 2014: 30 · 2013: 32 · 2012: 23
FWCI
2.10
Type
journal article
Language
en
Open access
Licence
cc-by-nc
Locations
  • World Journal of Gastroenterology (publishedVersion, cc-by-nc)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
European Regional Development Fund (BFU2007-30688-E/BFI)
Topics
  • Health Sciences › Medicine › Oncology › Drug Transport and Resistance Mechanisms
  • Life Sciences › Pharmacology, Toxicology and Pharmaceutics › Pharmacology › Drug-Induced Hepatotoxicity and Protection
  • Health Sciences › Medicine › Hepatology › Liver physiology and pathology
Keywords
bile acids, hepatocyte injury, cholestasis, oxidative stress, reactive oxygen species, endoplasmic reticulum stress, mitochondrial dysfunction, death receptors, ursodeoxycholic acid, bile acid derivatives, glutathione, hepatoprotection
MeSH terms
Animals, Bile Acids and Salts, Biliary Tract Diseases, Cell Membrane, Cholestasis, Humans, Molecular Structure, Apoptosis, Oxidative Stress, Cytoprotection, Hepatocytes

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