Cure8 news brief
The study identifies colonic gene-expression programs that correlate with treatment failure, higher surgery rates, and perianal disease in Crohn’s — findings that could guide future prognostic tests and targeted therapies.
Clinicians and researchers working on Crohn’s disease biomarkers and treatment stratification; adult patients interested in the molecular basis of disease heterogeneity.
This study analyzed whole-transcriptome RNA sequencing from non-inflamed colonic biopsies of 101 people with Crohn’s disease and identified 15 transcriptional programs that define molecular subtypes of disease.
Several programs were linked to clinical outcomes: a neutrophil activation signature associated with primary and secondary treatment failure, a fibro-proliferative program tied to higher surgical burden, an antimicrobial (DEFA5/DEFA6) program enriched in patients with treatment failure, and a distinct program associated with perianal disease.
This is a tissue-based transcriptomic association study (RNA-seq and co-expression analysis) in a single cohort with some validation; it suggests candidate biomarkers but does not yet establish clinical tests or change treatment recommendations.
Review the original publication for the complete reporting, methods, and context.
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