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Published on: March 27, 2016
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Spinal Cord Injury in Enterovirus D68 Infection: Mechanisms and Pathophysiology in a Mouse Model.
Wei Duan1,2,3,4, Jichen Li1,2,3,4, Ying Liu1,2,3,4
1National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases (NITFID), National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China.
Viruses
|November 27, 2025
Summary
Researchers developed a novel mouse model for Enterovirus D68 (EV-D68) infection. This model aids in studying EV-D68 pathogenesis and evaluating potential antiviral therapies and vaccines.
Area of Science:
- Virology
- Immunology
- Neuroscience
Background:
- Enterovirus D68 (EV-D68) causes severe respiratory illness and acute flaccid myelitis.
- Current lack of vaccines or antivirals necessitates better research models.
- Existing models do not fully capture EV-D68 pathogenesis.
Purpose of the Study:
- To develop and characterize a mouse-adapted EV-D68 strain for pathogenesis studies.
- To investigate the neuropathological mechanisms of EV-D68 infection.
- To provide a tool for evaluating EV-D68 countermeasures.
Main Methods:
- Adaptation of EV-D68 for mouse inoculation.
- Viral load quantification in various tissues.
- RNA sequencing to identify differentially expressed genes (DEGs).
- Flow cytometry for immune cell profiling in the spinal cord.
Main Results:
- Mouse-adapted EV-D68 caused limb paralysis and spinal cord injury.
- Highest viral titers and tissue damage observed in skeletal muscle and spinal cord.
- DEGs revealed pathways linked to antiviral immunity, interferon response, and mitochondrial dysfunction.
- Spinal cord inflammation showed increased CD8+ and CD4+ T cells with limited neutrophils/monocytes.
Conclusions:
- The developed mouse model effectively replicates key aspects of EV-D68 pathogenesis.
- This model is crucial for understanding EV-D68-induced neurological damage.
- It serves as a vital platform for testing antiviral drugs and vaccine efficacy.
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