Murine model of acute myocarditis and cerebral cortical neuron edema induced by coxsackievirus B4
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Zoological Research    2018, Vol. 39 Issue (1) : 52-57     DOI: 10.24272/j.issn.2095-8137.2017.056
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Murine model of acute myocarditis and cerebral cortical neuron edema induced by coxsackievirus B4
Zhao-Peng Dong1,2,#, Qian Wang1,3,#, Zhen-Jie Zhang1, Michael J. Carr4,5, Dong Li3, Wei-Feng Shi1,*
1 Key Laboratory of Etiology and Epidemiology of Emerging Infectious Diseases in Universities of Shandong, Taishan Medical University, Taian Shandong 271000, China 
2 Shanghai Jinshan Center for Disease Control and Prevention, Shanghai 201599, China
3 School of Public Health, Taishan Medical University, Taian Shandong 271016, China
4 Global Station for Zoonosis Control, Global Institution for Collaborative Research and Education (GI-CoRE), Hokkaido University, Sapporo, Japan
5 National Virus Reference Laboratory, School of Medicine, University College Dublin, Dublin 4, Ireland
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Abstract  Globally, coxsackievirus B4 (CV-B4) has been continuously isolated and evidence suggests an association with the development of pancreatitis and type I diabetes. In addition, CV-B4 is also associated with myocarditis and severe central nervous system (CNS) complications, which remain poorly studied and understood. In the present study, we established an ICR mouse model of CV-B4 infection and examined whether CV-B4 infection resulted in a predisposition to myocarditis and CNS infection. We found high survival in both the treatment and control group, with no significant differences in clinical outcomes observed. However, pathological lesions were evident in both brain and heart tissue of the CV-B4-infected mice. In addition, high viral loads were found in the neural and cardiac tissues as early as 2 d postinfection. Expressions of IFN-γ and IL-6 in sera were significantly higher in CV-B4-infected mice compared to uninfected negative controls, suggesting the involvement of these cytokines in the development of histopathological lesions. Our murine model successfully reproduced the acute myocarditis and cerebral cortical neuron edema induced by CV-B4, and may be useful for the evaluation of vaccine candidates and potential antivirals against CV-B4 infection.
Keywords Coxsackievirus B4      Myocarditis      CNS      Edema      Neurons     
Fund:This work was supported by the Natural Science Foundation of Shandong Province (ZR2015JL026); the National Natural Science Foundation of China (81601773); W.S. was supported by the Taishan Scholars program of Shandong Province (ts201511056)
Corresponding Authors: Wei-Feng Shi,   
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Zhao-Peng Dong, Qian Wang, Zhen-Jie Zhang, Michael J. Carr, Dong Li, Wei-Feng Shi. Murine model of acute myocarditis and cerebral cortical neuron edema induced by coxsackievirus B4. Zoological Research, 10.24272/j.issn.2095-8137.2017.056
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