PUBLICATION

Lupeol ameliorates LPS/D-GalN induced acute hepatic damage by suppressing inflammation and oxidative stress through TGFβ1-Nrf2 signal pathway

Authors
Huang, S., Mo, C., Zeng, T., Lai, Y., Zhou, C., Xie, S., Chen, L., Wang, Y., Chen, Y., Huang, S., Gao, L., Lv, Z.
ID
ZDB-PUB-210313-1
Date
2021
Source
Aging   13(5): 6592-6605 (Journal)
Registered Authors
Keywords
Nrf2, TGFβ1, acute liver injury, inflammation, lupeol
MeSH Terms
  • Animals
  • Anti-Inflammatory Agents/pharmacology*
  • Chemical and Drug Induced Liver Injury/prevention & control*
  • Disease Models, Animal
  • Down-Regulation
  • Galactosamine/toxicity
  • Inflammation/prevention & control
  • Lipopolysaccharides/toxicity
  • Mice, Inbred C57BL
  • NF-E2-Related Factor 2/metabolism*
  • Oxidative Stress/drug effects
  • Pentacyclic Triterpenes/pharmacology*
  • Transforming Growth Factor beta1/metabolism*
  • Up-Regulation
  • Zebrafish
PubMed
33707345 Full text @ Aging (Albany NY)
Abstract
Acute hepatic damage is a severe condition characterized by inflammation and oxidative stress, which is a serious threat to people's life and health. But there are few effective treatments for acute liver injury. Therefore, safe and effective therapeutic approaches for preventing acute liver damage are urgently needed. Lupeol is a natural compound, which has significant antioxidant and anti-inflammatory properties in liver disease. However, the protective mechanism of lupeol against acute liver injury remains unclear. Here, zebrafish and mutant mice were utilized to investigate the protective effects of lupeol against lipopolysaccharide (LPS)/ D-galactosamine(D-GalN) -induced liver injury and the underlying mechanisms. We found that pretreatment with lupeol attenuated the LPS/D-GalN-induced liver injury by decreasing the infiltration of inflammatory cells and reducing pro-inflammatory cytokines. We also demonstrated that lupeol could protect injured liver from oxidative stress by downregulating the expression of TGFβ1 and upregulating Nrf2. Notably, our experimental results provided the support that lupeol effectively protected against LPS/D-GalN-induced acute liver injury via suppression of inflammation response and oxidative stress, which were largely dependent on the upregulation of the Nrf2 pathway via downregulating TGFβ1.
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