Imperial College London Identifies 100+ Crohn's Genes by Mapping 3D DNA in ILC3 Cells
Updated
Updated · dongascience.com · Aug 4
Imperial College London Identifies 100+ Crohn's Genes by Mapping 3D DNA in ILC3 Cells
3 articles · Updated · dongascience.com · Aug 4
Summary
Nature Genetics published findings from Imperial College London and MRC LMS showing that 3D DNA mapping in rare ILC3 immune cells linked Crohn’s-risk enhancer variants to more than 100 genes.
Mini capture Hi-C let the team trace physical contacts between enhancers and genes using small cell samples, revealing how noncoding risk variants may drive gut inflammation through ILC3 biology.
About half of the genes were already tied to Crohn’s disease, while the rest were newly implicated and were largely involved in ILC3 responses to tissue damage and infection.
CLN3—best known for its link to Batten disease—also affected ILC3 inflammatory signaling when researchers altered its activity, pointing to a possible new therapeutic pathway.
Crohn’s disease still has no cure and hospital visits in South Korea rose 34% to 22,408 in 2018 from 16,728 in 2014, underscoring demand for targeted treatments.
How does a gene notorious for a fatal brain disorder secretly orchestrate chronic inflammation in the human gut?
Could mapping the hidden 3D origami of our DNA finally unlock targeted cures for complex autoimmune diseases?
Mapping the 3D Genome of Rare ILC3 Cells Reveals Over 100 Crohn’s Disease Risk Genes and Uncovers a Gut-Brain Axis Link via CLN3
Overview
In August 2026, scientists achieved a major breakthrough by using a highly sensitive mini-Capture Hi-C technique to map the 3D genome of rare ILC3 immune cells, revealing how distant genetic variants linked to Crohn's disease physically interact with key genes. By integrating these 3D maps with GWAS data through the multiCOGS framework, they identified and prioritized risk genes, including the unexpected discovery of CLN3—a gene previously known for its role in neurodegeneration. Loss of CLN3 in ILC3s leads to excessive inflammation in the gut, while its deficiency also causes nerve and muscle damage, disrupting gut-brain communication. This approach was then scaled to other autoimmune diseases, generating a comprehensive list of risk genes and opening new paths for precision therapies.