Human Host Genomic Context in Multiple Sclerosis Risk Regions
In a laboratory study, researchers assessed the influence of host genomic context on sequences related to multiple sclerosis. They found that the effects significantly varied between different host loci, with selected inserts maintaining over 85% of their advantage even at unseen loci. However, the anticipated activity from their objectives was not consistently observed, suggesting limited predictability at specific loci.
- Tags
- #MSResearch
- Most relevant to
- —
- Human efficacy
- Not established from this source
- Mechanism
- Not reported
- Evidence strength
- Limited
- Outcome
- Not reported
Why it matters
This research highlights how host genomic context can influence genetic effects associated with multiple sclerosis risk. Understanding these dynamics may contribute to future genetic insights into the disease.
What this does not prove
The study did not predict the activity of the lentiMPRA effectively, and the effects observed at specific loci were not robust, indicating variability in results.
Next milestone
No next milestone was established from the available source.
Study facts
- Study design
- Laboratory
- Participants / samples
- Not reported
- Randomised
- Not reported
- Controlled
- Not reported
- Primary endpoint met
- Not reported
- Relevant MS type
- Not reported
- Publication date
- 2026-10-31
- Evidence reviewed
- Abstract only
- Regulatory approval
- Not reported
- Research areas
- Not classified
- Biological target
- Not reported
- Pathway
- Not reported
- Population
- Taking chromatin and host loci from multiple sclerosis risk regions
- Size of effect
- Not reported
- Secondary endpoints
- Not reported
- MRI endpoints
- Not reported
- Biomarkers
- Not reported
- Safety
- Not reported
Original sources
- Primary evidenceHost genomic context determines the direction of an oracle-predicted sequence effect: a composition-preserving CpG intervention in Enformer and Borzoi. ↗DOI: 10.1007/s10142-026-02097-3
Supporting passages (13)
study designPublication types: Journal Article
subjectsMeSH terms: Humans; CpG Islands; Multiple Sclerosis; Genomics; Models, Genetic; Chromatin
sample size basis24 host loci
publication datePublication date: 2026-10-31
interventionTitle: Host genomic context determines the direction of an oracle-predicted sequence effect: a composition-preserving CpG intervention in Enformer and Borzoi.
findingsScores differ in level between loci far more than between inserts at one locus, yet inserts selected by an Enformer-derived index kept 85% of their advantage at four unseen loci.
findingsinserts selected by an Enformer-derived index kept 85% of their advantage at four unseen loci.
findingsPlacing identical inserts and an identical CpG edit at 24 host loci, the effect varied far beyond sampling noise on host identity alone ([Formula: see text]), unpredicted by 18 host properties.
findingsIt survives scoring only the bins the insert occupies ([Formula: see text], and across 200 loci), so is no artefact of aggregation; the apparent host dominance, however, falls from 25-fold to 3-fold under that localised score, and the one locus positive under the whole-window score reverses under it.
limitationsthe objective did not predict lentiMPRA activity.
limitationsits direction at any one locus is not robust.
populationTaking chromatin and host loci from multiple sclerosis risk regions, we kept four questions apart: sequence realism, transfer of discrimination, edit stability, calibration.
peer reviewedPublication types: Journal Article
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