What question did this study set out to answer?

The study aims to characterize the mucosal transcriptome profile of ulcerative colitis in the Chilean population and explore ancestry-linked molecular patterns.

January 23, 2026Journal of Crohn s and Colitis

P1314 Immune Clusters and Ancestry-Associated Gene Expression in Chilean Ulcerative Colitis.

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Authors

TPTomás Aldana PérezPontificia Universidad Católica de Chile IVIvania ValdésPontificia Universidad Católica de Chile CHCristian Hernández-RochaPontificia Universidad Católica de Chile

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Implication

Analysis identifies immune clusters and ancestry-related gene expressions in Chilean ulcerative colitis, suggesting new treatment pathways.

Key Points

The study aims to characterize the mucosal transcriptome profile of ulcerative colitis in the Chilean population and explore ancestry-linked molecular patterns.
Analyzed sigmoid mucosal biopsies from 20 UC patients and 10 healthy controls using bulk RNA-seq.
Identified differentially expressed genes (DEGs) with DESeq2 and analyzed for functional enrichment.
Defined immune-related clusters using clusterProfiler and stratified gene expression by ancestry.
Detected 1,655 DEGs in active vs control, 22 in inactive vs control, and 535 in inactive vs active comparisons.
KLF7 was identified as a key DEG associated with proinflammatory genes across all disease states.
Highlighted three immune clusters involved in leukocyte adhesion, adaptive immune activation, and innate microbial sensing.

Cite This Study

Pérez et al. (2026) studied this question.

synapsesocial.com/papers/69730ed4c8125b09b0d1eb0f https://doi.org/10.1093/ecco-jcc/jjaf231.1495

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Implication

Analysis identifies immune clusters and ancestry-related gene expressions in Chilean ulcerative colitis, suggesting new treatment pathways.

P1314 Immune Clusters and Ancestry-Associated Gene Expression in Chilean Ulcerative Colitis.

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Key Points

Cite This Study

P1314 Immune Clusters and Ancestry-Associated Gene Expression in Chilean Ulcerative Colitis.

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Cite This Study

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