IgA Deficiency Exacerbates Multiple Sclerosis Symptoms in TMEV-Infected Mice
In an animal study using Theiler's murine encephalomyelitis virus (TMEV), IgA knockout (KO) mice exhibited more severe neurological symptoms and inflammatory demyelination compared to wild-type (WT) mice. They also showed higher levels of viral persistence and T cell infiltration in the central nervous system, while their virus-specific immune responses were similar to those of WT mice, except for IgA levels.
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- #MSResearch
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Why it matters
These findings suggest that IgA deficiency may worsen MS-like symptoms in this animal model. Understanding the role of IgA could inform research into immune responses in multiple sclerosis, but it does not directly apply to humans or establish causation in human MS.
What this does not prove
This study used an animal model and does not establish the role of IgA in human MS.
Next milestone
No next milestone was established from the available source.
Study facts
- Study design
- Not reported
- Participants / samples
- Not reported
- Randomised
- Not reported
- Controlled
- Not reported
- Primary endpoint met
- Not reported
- Relevant MS type
- Not reported
- Publication date
- 2026-09-15
- Evidence reviewed
- Abstract only
- Regulatory approval
- Not reported
- Research areas
- Not classified
Original sources
- Primary evidenceIgA Deficiency Exacerbates an Animal Model of Multiple Sclerosis Induced with Theiler's Virus. ↗DOI: 10.3390/cells15181665
Supporting passages (7)
subjectsAnimal
publication date2026-09-15
interventionTheiler's murine encephalomyelitis virus (TMEV)
comparatorWe found that TMEV-infected IgA KO mice developed more severe neurological signs than wild-type (WT) mice.
primary endpointIgA KO mice also had more severe inflammatory demyelination with higher levels of viral persistence and T cell infiltration in the CNS than WT mice.
findingsWe found that TMEV-infected IgA KO mice developed more severe neurological signs than wild-type (WT) mice.
limitationsTitle: IgA Deficiency Exacerbates an Animal Model of Multiple Sclerosis Induced with Theiler's Virus.
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