Abstract
Autophagy is an important lysosome-mediated intracellular degradation pathway required for tissue homeostasis. Dysregulation of liver autophagy is closely associated with different liver diseases including alcoholic liver disease. Studies now indicate that autophagy may be induced or suppressed depending on the amount and the duration of ethanol treatment. Autophagy induced by ethanol serves as a protective mechanism, probably by selective degradation of the damaged mitochondria (mitophagy) and excess lipid droplets (lipophagy) and in turn attenuates alcohol-induced steatosis and liver injury. However, the detailed molecular mechanism of selective targeting of mitochondria and lipid is still unclear. Autophagy may possess other functions that protect hepatocytes from ethanol. Understanding these molecular entities would be essential in order to therapeutically module autophagy for treatment of alcoholic liver disease.
Keywords: Autophagy, alcoholic liver disease, ethanol, mitophagy, lipophagy, liver injury, steatosis, mitochondria damage.
Current Molecular Pharmacology
Title:The Activation and Function of Autophagy in Alcoholic Liver Disease
Volume: 10
Author(s): Bilon Khambu, Lin Wang, Hao Zhang and Xiao-Ming Yin*
Affiliation:
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN 46202,United States
Keywords: Autophagy, alcoholic liver disease, ethanol, mitophagy, lipophagy, liver injury, steatosis, mitochondria damage.
Abstract: Autophagy is an important lysosome-mediated intracellular degradation pathway required for tissue homeostasis. Dysregulation of liver autophagy is closely associated with different liver diseases including alcoholic liver disease. Studies now indicate that autophagy may be induced or suppressed depending on the amount and the duration of ethanol treatment. Autophagy induced by ethanol serves as a protective mechanism, probably by selective degradation of the damaged mitochondria (mitophagy) and excess lipid droplets (lipophagy) and in turn attenuates alcohol-induced steatosis and liver injury. However, the detailed molecular mechanism of selective targeting of mitochondria and lipid is still unclear. Autophagy may possess other functions that protect hepatocytes from ethanol. Understanding these molecular entities would be essential in order to therapeutically module autophagy for treatment of alcoholic liver disease.
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Cite this article as:
Khambu Bilon, Wang Lin, Zhang Hao and Yin Xiao-Ming*, The Activation and Function of Autophagy in Alcoholic Liver Disease, Current Molecular Pharmacology 2017; 10 (3) . https://dx.doi.org/10.2174/1874467208666150817112654
DOI https://dx.doi.org/10.2174/1874467208666150817112654 |
Print ISSN 1874-4672 |
Publisher Name Bentham Science Publisher |
Online ISSN 1874-4702 |
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