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PLoS One. 2015 Mar 30;10(3):e0121939. doi: 10.1371/journal.pone.0121939. eCollection 2015.

Pyrroloquinoline-quinone suppresses liver fibrogenesis in mice.

Author information

1
Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, P.R.China.
2
Institute of Biomedical Science, Fudan University, Shanghai, P.R.China.
3
Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, P.R.China; Institute of Biomedical Science, Fudan University, Shanghai, P.R.China.

Abstract

Liver fibrosis represents the consequences of a sustained wound healing response to chronic liver injuries, and its progression toward cirrhosis is the major cause of liver-related morbidity and mortality worldwide. However, anti-fibrotic treatment remains an unconquered area for drug development. Accumulating evidence indicate that oxidative stress plays a critical role in liver fibrogenesis. In this study, we found that PQQ, a natural anti-oxidant present in a wide variety of human foods, exerted potent anti-fibrotic and ROS-scavenging activity in Balb/C mouse models of liver fibrosis. The antioxidant activity of PQQ was involved in the modulation of multiple steps during liver fibrogenesis, including chronic liver injury, hepatic inflammation, as well as activation of hepatic stellate cells and production of extracellular matrix. PQQ also suppressed the up-regulation of RACK1 in activated HSCs in vivo and in vitro. Our data suggest that PQQ suppresses oxidative stress and liver fibrogenesis in mice, and provide rationale for the clinical application of PQQ in the prevention and treatment of liver fibrosis.

PMID:
25822822
PMCID:
PMC4379100
DOI:
10.1371/journal.pone.0121939
[Indexed for MEDLINE]
Free PMC Article

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