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Lignans from Schisandra chinensis ameliorate alcohol and CCl4-induced long-term liver injury and reduce hepatocellular degeneration via blocking ETBR.
- Source :
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Journal of Ethnopharmacology . Aug2020, Vol. 258, pN.PAG-N.PAG. 1p. - Publication Year :
- 2020
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Abstract
- Chemical hepatotoxicity, especially alcoholic liver injury (ALI), commonly occurs in young and middle-aged people who drink heavily. ALI is extremely harmful and can induce severe disease states, such as hepatitis, liver fibrosis, cirrhosis, or liver cancer, which are similar to CCl 4 -induced liver disease states in animals. In recent studies, the pathological changes of hepatocytes and the hepatic stellate cell have shown a significant connection between endoplasmic reticulum (ER) stress and the development of liver pathology in patients. However, the detailed pathological mechanism needs to be further studied. Schisandra chinensis , (S. chinensis) , a fruit-bearing vine used in Traditional Chinese Medicine (TCM), has been used to treat chronic or acute diseases, including liver disease. S. chinensis -derived lignans (SCDLs) in particular have been shown to alleviate liver pathological changes. This study sought to elucidate the mechanisms underlying SCDL-mediated hepatoprotection. We first used in silico target prediction and computational simulation methods to identify putative lignan-binding targets relative to the hepatoprotective effect. A gene microarray analysis was performed to identify differently expressed genes that might have significance in the disease pathological process. We then used histological analyses in a mice hepatotoxicity model to test the effectiveness of SCDLs in vivo , and a hepatocellular toxicity model to analyze the candidate-compound-mediated hepatoprotection and expression states of the key targets in vitro. The in silico analysis results indicated that endothelin receptor B (ETBR/EDNRB) is likely a significant node during the liver pathological change process and a promising key target for the SCDL compound schisantherin D on the hepatoprotective effect; experimental studies showed that schisantherin D alleviated the EtOH- and ET-1-induced HL-7702 cell (belongs to liver parenchymal cell lines) injury ratio, decreased the expression of ETBR, and inhibited ECMs and ET-1 secretion in LX-2 cells (one form of hepatic stellate cells). SCDLs ameliorated EtOH- and CCl 4 -induced fibrosis formation in mice liver tissue. Liver tissue western blots of SCDL-treated mice showed downregulated α-SMA, ETBR, PLCβ, CHOP, Bax, and the apoptotic factors of cleaved-caspase 12, cleaved-caspase 9, and cleaved-caspase 3 hinted at an anti-apoptosis and hepatoprotective effect. The SCDL treatment also elevated serum glutathione (GSH) and reduced the serum-transforming growth factor-β1 (TGF-β1) level. The findings indicated that SCDLs prevent hepatotoxicity via their anti-fibrotic, anti-oxidant, and anti-apoptosis properties. ETBR may be the key factor in promoting chemical hepatotoxicity. Image 1 • ETBR was confirmed to be a promising alcoholic liver injury treating target. • In silico analysis and experimental validation was used to illustrate SCDLs mediated hepatotoxicity protection. • Schisantherin D showed potential hepatotoxicity protective effect via blocking ETBR. [ABSTRACT FROM AUTHOR]
- Subjects :
- *LIVER disease prevention
*ALCOHOLS (Chemical class)
*ANIMAL experimentation
*APOPTOSIS
*CARRIER proteins
*CELL lines
*CELL receptors
*GENE expression
*GLUTATHIONE
*HEPATOTOXICOLOGY
*HISTOLOGICAL techniques
*HYDROCARBONS
*LIGNANS
*LIVER
*LIVER diseases
*MEDICINAL plants
*CHINESE medicine
*MICE
*MUSCLE proteins
*PHOSPHOLIPASES
*TRANSFORMING growth factors-beta
*OXIDATIVE stress
*MICROARRAY technology
*CASPASES
Subjects
Details
- Language :
- English
- ISSN :
- 03788741
- Volume :
- 258
- Database :
- Academic Search Index
- Journal :
- Journal of Ethnopharmacology
- Publication Type :
- Academic Journal
- Accession number :
- 143459054
- Full Text :
- https://doi.org/10.1016/j.jep.2020.112813