Ulinastatin Protects against CVB3-Induced Acute Viral Myocarditis through Nrf2 Activation

Ulinastatin Protects against CVB3-Induced Acute Viral Myocarditis through Nrf2 Activation Inflammation and oxidative stress are implicated in the pathogenesis of acute viral myocarditis (AVM). Ulinastantin (UTI), an inhibitor of serine protease widely used in treatment of pancreatitis and various inflammatory disorders, displays cardioprotective properties in experimental animals. Although the specific mechanism through which UTI regulates cardiac function is not well explored, evidence suggests that UTI might activate nuclear factor E2-related factor 2 (Nrf2) signaling. In this study, we investigated the role of Nrf2 in mediating UTI’s cardioprotection in a mouse model of AVM. We found that UTI is an activator of Nrf2 signaling. It markedly increased Nrf2 nuclear translocation, Nrf2 transcription capacity, and the downstream protein expression. In addition, UTI possessed strong protective functions in coxsackievirus B3 (CVB3)-induced AVM. UTI treatment effectively reduced the cardiac damage, decreased the expression of inflammatory cytokines, and balanced oxidative stress via improving the activity of anti-oxidant and detoxifying enzymes. Even more impressively, UTI achieved its cardioprotective activities in an Nrf2-dependent manner. Taken together, our study has identified a novel pathway through which UTI exerts its cardioprotective functions and provides a molecular basis for UTI potential applications in the treatment of AVM and other inflammatory disorders. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Inflammation Springer Journals

Ulinastatin Protects against CVB3-Induced Acute Viral Myocarditis through Nrf2 Activation

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Publisher
Springer Journals
Copyright
Copyright © 2018 by Springer Science+Business Media, LLC, part of Springer Nature
Subject
Medicine & Public Health; Rheumatology; Internal Medicine; Pharmacology/Toxicology; Pathology
ISSN
0360-3997
eISSN
1573-2576
D.O.I.
10.1007/s10753-018-0734-6
Publisher site
See Article on Publisher Site

Abstract

Inflammation and oxidative stress are implicated in the pathogenesis of acute viral myocarditis (AVM). Ulinastantin (UTI), an inhibitor of serine protease widely used in treatment of pancreatitis and various inflammatory disorders, displays cardioprotective properties in experimental animals. Although the specific mechanism through which UTI regulates cardiac function is not well explored, evidence suggests that UTI might activate nuclear factor E2-related factor 2 (Nrf2) signaling. In this study, we investigated the role of Nrf2 in mediating UTI’s cardioprotection in a mouse model of AVM. We found that UTI is an activator of Nrf2 signaling. It markedly increased Nrf2 nuclear translocation, Nrf2 transcription capacity, and the downstream protein expression. In addition, UTI possessed strong protective functions in coxsackievirus B3 (CVB3)-induced AVM. UTI treatment effectively reduced the cardiac damage, decreased the expression of inflammatory cytokines, and balanced oxidative stress via improving the activity of anti-oxidant and detoxifying enzymes. Even more impressively, UTI achieved its cardioprotective activities in an Nrf2-dependent manner. Taken together, our study has identified a novel pathway through which UTI exerts its cardioprotective functions and provides a molecular basis for UTI potential applications in the treatment of AVM and other inflammatory disorders.

Journal

InflammationSpringer Journals

Published: Jan 30, 2018

References

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