IRF8 in Mice and Human MS Patients
In a study, IRF8 expression was notably increased in the spinal cords of experimental autoimmune encephalomyelitis (EAE) model mice and was found mostly in myeloid cells. In MS patients, higher amounts of IRF8-positive myeloid cells were observed in peripheral blood. Notably, IRF8 knockout mice showed complete resistance to EAE, and their spinal cords had reduced mRNA levels of inflammatory mediators.
- Tags
- #MSResearch
- Most relevant to
- —
- Human efficacy
- Not established from this source
- Mechanism
- Not reported
- Evidence strength
- Not graded
- Outcome
- Not reported
Why it matters
These findings suggest that IRF8 may play a significant role in driving neuroinflammation associated with MS and EAE. Understanding this mechanism could guide future research in neuroinflammatory conditions.
What this does not prove
This study primarily used a mouse model, which may not fully represent human MS pathology. Therefore, the direct translation of these findings to human MS remains uncertain.
Next milestone
No next milestone was established from the available source.
Study facts
- Study design
- Not reported
- Participants / samples
- Not reported
- Randomised
- No
- Controlled
- No
- Primary endpoint met
- Not reported
- Relevant MS type
- Not reported
- Publication date
- 2026-10-24
- Evidence reviewed
- Abstract only
- Regulatory approval
- Not reported
- Research areas
- Not classified
- Biological target
- IRF8
- Pathway
- Not reported
- Population
- Patients with MS and EAE model mice
- Size of effect
- Not reported
- Secondary endpoints
- Not reported
- MRI endpoints
- Not reported
- Biomarkers
- Not reported
- Safety
- Not reported
Original sources
- Primary evidenceInterferon Regulatory Factor 8 Drives Autoimmune Neuroinflammation in Experimental Autoimmune Encephalomyelitis. ↗DOI: 10.1007/s12017-026-08952-7
Supporting passages (13)
speciesMice
randomizedNo
controlledNo
publication date2026-10-24
findingsIRF8 expression was significantly increased in the spinal cord of EAE model mice and predominantly localized to myeloid cells.
findingsConsistently, patients with MS exhibited significantly increased proportions of IRF8-positive myeloid cells in peripheral blood.
findingsIRF8 knockout mice exhibited complete resistance to EAE induction.
findingsThe mRNA expression levels of neuroinflammatory mediators, including interleukin IL-1β, IL-6, tumor necrosis factor-α, IL-12b, and nitric oxide synthase 2, were significantly reduced in the spinal cord of IRF8 knockout mice.
biological targetsIRF8
populationAmong the IRFs examined, IRF8 expression was significantly increased in the spinal cord of EAE model mice and predominantly localized to myeloid cells.
limitationsTitle: Interferon Regulatory Factor 8 Drives Autoimmune Neuroinflammation in Experimental Autoimmune Encephalomyelitis.
peer reviewedPublication types: Journal Article
subjectsMeSH terms: Animals; Encephalomyelitis, Autoimmune, Experimental; Interferon Regulatory Factors; Interferon Regulatory Factor-8; Mice, Knockout; Spinal Cord; Mice; Female; Mice, Inbred C57BL; Multiple Sclerosis; Humans; Cytokines; Myeloid Cells; RNA, Messenger; Nerve Tissue Proteins; Nitric Oxide Synthase Type II; Inflammation Mediators; Myelin-Oligodendrocyte Glycoprotein
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