Updated · scienceblog.cincinnatichildrens.org · Aug 4
Cincinnati Children's Maps 100-Plus Crohn's Risk Genes in Rare Immune Cells, Linking DNA Regulation to CLN3
Updated
Updated · scienceblog.cincinnatichildrens.org · Aug 4
Cincinnati Children's Maps 100-Plus Crohn's Risk Genes in Rare Immune Cells, Linking DNA Regulation to CLN3
2 articles · Updated · scienceblog.cincinnatichildrens.org · Aug 4
Summary
A Nature Genetics study used an optimized promoter capture Hi-C approach to map long-distance DNA regulation in rare type 3 innate lymphoid cells, a cell type previously hard to study because most methods needed millions of cells.
By combining those 3D genome maps with genome-wide association data, researchers prioritized more than 100 candidate genes tied to Crohn's disease risk in ILC3s, including several not previously linked to inflammatory bowel disease.
CLN3 emerged as a notable target: mouse experiments showed Cln3 levels fall when ILC3s activate, while boosting Cln3 reduced inflammatory gene activity and cytokine production.
The findings do not prove CLN3 causes inflammatory bowel disease, but they suggest disease-linked variants can act on distant genes and that rare immune-cell mapping may uncover new immune and gut-brain disease mechanisms.