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Updated: Aug 11, 2026
Induction of Experimental Autoimmune Encephalomyelitis in Mice and Evaluation of the Disease-dependent Distribution of Immune Cells in Various Tissues
Published on: May 8, 2016
Theiler's murine encephalomyelitis: a model of demyelination and persistence of virus
M Rodriguez1, E Oleszak, J Leibowitz
1Mayo Medical School, Rochester, Minnesota.
Abstract:
Theiler's murine encephalomyelitis virus (TMEV) causes immune-mediated demyelination in susceptible mice which is similar to human demyelinating disorders such as multiple sclerosis. In addition, the picornavirus persists within the central nervous system throughout the course of the chronic demyelinating disease. This article reviews the neuropathology, virology, immunology, and molecular biology of the model system. We analyze the possible mechanisms by which this virus induces demyelination and persists in the nervous system. Finally, we provide a hypothesis that the specificity of primary white matter destruction in the TMEV model depends on immune-sensitized cells which interact with viral antigen plus major histocompatibility complex (MHC) antigens on the surfaces of oligodendrocytes or myelin sheaths.
Insights
Theiler's murine encephalomyelitis virus (TMEV) causes demyelination in mice, mimicking multiple sclerosis. This picornavirus persists in the central nervous system, with destruction linked to immune cells targeting viral and MHC antigens on oligodendrocytes.
Area of Science:
- Neuroimmunology
- Virology
- Demyelinating Diseases
Background:
- Theiler's murine encephalomyelitis virus (TMEV) is a picornavirus that induces immune-mediated demyelination in susceptible mice.
- This animal model shares similarities with human demyelinating disorders like multiple sclerosis.
- TMEV establishes persistent infection within the central nervous system (CNS).
Purpose of the Study:
- To review the neuropathology, virology, immunology, and molecular biology of the TMEV model.
- To analyze the mechanisms of TMEV-induced demyelination and persistence.
- To hypothesize the basis for white matter destruction specificity in TMEV infection.
Main Methods:
- Review of existing literature on TMEV neuropathology, virology, and immunology.
- Analysis of proposed mechanisms for viral persistence and demyelination.
- Formulation of a hypothesis regarding immune cell interactions in TMEV pathogenesis.
Main Results:
- TMEV infection leads to chronic demyelinating disease in mice.
- The virus persists within the CNS throughout the disease course.
- Oligodendrocytes and myelin sheaths are targets in the demyelination process.
Conclusions:
- The TMEV model is valuable for studying immune-mediated demyelination and viral persistence in the CNS.
- Viral antigen and MHC interactions on oligodendrocytes are implicated in white matter destruction.
- Understanding these mechanisms may offer insights into multiple sclerosis pathogenesis.
