New Clues to Crohn's Genetic Risk

High-resolution mapping in type 3 innate lymphoid cells uncovered both established and previously unrecognized candidate disease genes

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Researchers created a high-resolution map of gene regulatory interactions in human type 3 innate lymphoid cells (ILC3s) related to Crohn's disease.
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The study identified 109 candidate genes in ILC3s and 118 in CD4-positive T cells linked to Crohn's disease, including both established and novel genes.
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Functional studies indicated that increased Cln3 expression in ILC3-like cells altered inflammatory gene expression and reduced cytokine secretion.
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The research highlighted substantial differences in gene regulatory networks between ILC3s and CD4-positive T cells.
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The findings provide a resource for interpreting genome-wide association study signals and understanding immune disease risk mechanisms.

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