CSF NKT Cell Frequencies and Genetic Association in Individuals with MS
A genomic study involving 456 individuals with MS identified a significant association between the ITGB5 variant rs6783734*C and increased CSF NKT cell frequencies. This was replicated in another cohort of 90 individuals with MS or other CNS inflammatory diseases. Additionally, higher frequencies correlated with increased ARMSS over a ≥1-year follow-up.
- Tags
- #MSResearch
- Most relevant to
- —
- Human efficacy
- Not established from this source
- Mechanism
- B cells
- Evidence strength
- Limited
- Outcome
- Positive
Why it matters
These findings highlight the role of genetic variation in immune response mechanisms within the CNS, particularly the involvement of integrin pathways, which may influence disease dynamics in MS.
What this does not prove
The study found no association between the genetic variant and disease severity, indicating the need for larger confirmatory research.
Next milestone
No next milestone was established from the available source.
Study facts
- Study design
- Laboratory
- Participants / samples
- 456 · basis not reported
- Randomised
- Not reported
- Controlled
- Not reported
- Primary endpoint met
- Not reported
- Relevant MS type
- Not reported
- Publication date
- 2026-10-28
- Evidence reviewed
- Abstract only
- Regulatory approval
- Not reported
- Research areas
- Not classified
- Biological target
- ITGB5
- Pathway
- Not reported
- Population
- individuals with MS, adult, middle-aged
- Size of effect
- Not reported
- Secondary endpoints
- Not reported
- MRI endpoints
- Not reported
- Biomarkers
- Not reported
- Safety
- Not reported
Original sources
- Primary evidenceGenetic Variation Underlying CSF Natural Killer T-Cell Frequency in Inflammatory CNS Diseases: A Genome-Wide Association Study. ↗DOI: 10.1212/nxi.0000000000200676
Supporting passages (12)
study designMETHODS: We conducted a genome-wide association study (GWAS) of CSF NKT cell frequencies in 456 individuals with MS, with replication in an independent cohort of 90 individuals with MS or other inflammatory CNS diseases.
sample sizeWe conducted a genome-wide association study (GWAS) of CSF NKT cell frequencies in 456 individuals with MS, with replication in an independent cohort of 90 individuals with MS or other inflammatory CNS diseases.
primary endpointRESULTS: We identified and replicated a novel genome-wide significant association of rs6783734*C (joint p = 4.57 x 10-9), an intronic variant in ITGB5 on chromosome 3, with increased CSF NKT cell frequencies.
findingsAlthough rs6783734 was not associated with disease severity, higher CSF NKT cell frequencies were associated with greater ARMSS at the ≥1-year follow-up (p = 9.33 × 10-3).
limitationsGiven the central role of integrins in immune cell trafficking and the therapeutic success of integrin-targeting agents in MS, these results highlight integrin-mediated pathways as determinants of CNS immune responses.
populationHere, we investigated the genetic architecture underlying CSF NKT cell frequency variability in individuals with MS and other CNS diseases.
mechanismsNatural killer T (NKT) cells bridge innate and adaptive immunity and are implicated in immune regulation in autoimmune diseases.
biological targetsrs6783734 was associated with reduced ITGB5 gene expression in CSF CD4+ T cells, and MR supported a causal relationship between ITGB5 expression and CSF NKT cell frequencies.
outcomeDISCUSSION: Our findings implicate ITGB5 as a potentially context-dependent modulator of immune cell dynamics in inflammatory CNS disease, linking genetic variation to NKT cell frequencies within the CNS compartment.
publication datePublication date: 2026-10-28
peer reviewedPublication types: Journal Article
subjectsMeSH terms: Humans; Genome-Wide Association Study; Female; Natural Killer T-Cells; Male; Multiple Sclerosis; Adult; Middle Aged; Integrin beta Chains; Central Nervous System Diseases
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