Protective Effects of Peroxiredoxin 4 (PRDX4) on Cholestatic Liver Injury

International Journal of Molecular Sciences
Jing ZhangSohsuke Yamada

Abstract

Accumulating evidence indicates that oxidative stress plays a critical role in initiating the progression of inflammatory and fibrotic liver diseases, including cholestatic hepatitis. Peroxiredoxin 4 (PRDX4) is a secretory antioxidase that protects against oxidative damage by scavenging reactive oxygen species (ROS) in both the intracellular compartments and extracellular space. In this study, we examined the in vivo net effects of PRDX4 overexpression in a murine model of cholestasis. To induce cholestatic liver injury, we subjected C57BL/6J wild-type (WT) or human PRDX4 (hPRDX4) transgenic (Tg) mice to sham or bile duct ligation (BDL) surgery for seven days. Our results showed that the liver necrosis area was significantly suppressed in Tg BDL mice with a reduction in the severity of liver injuries. Furthermore, PRDX4 overexpression markedly reduced local and systemic oxidative stress generated by BDL. In addition, suppression of inflammatory cell infiltration, reduced proliferation of hepatocytes and intrahepatic bile ducts, and less fibrosis were also found in the liver of Tg BDL mice, along with a reduced mortality rate after BDL surgery. Interestingly, the composition of the hepatic bile acids (BAs) was more beneficial fo...Continue Reading

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Citations

May 25, 2021·The Journal of Investigative Dermatology·Reimon YamaguchiSohsuke Yamada

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Methods Mentioned

BETA
transgenic
ELISA
Assay
MDA

Software Mentioned

NanoZoomer Digital Pathology Virtual Slide Viewer

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