Integrative systems biology for inflammatory bowel disease: Current insights and future horizons

Inflammatory bowel disease (IBD) emerges from a complex, dynamic interplay among host genetics, the immune system, the intestinal epithelium, the microbiome, diet, environment, and therapeutics. Integrative systems biology offers a unifying framework to disentangle this complexity by combining multi-omic profiling (genomics, epigenomics, transcriptomics, proteomics, metabolomics, and metagenomics), spatial and single-cell technologies, and advanced computational modeling. This topic synthesizes current insights into IBD pathogenesis and heterogeneity gleaned from systems-level studies, including: genetic architectures and gene–environment interactions; immune–epithelial circuitries driving flares and fibrosis; microbiome–metabolite networks shaping mucosal immunity; and biomarkers of prognosis and therapeutic response. We highlight translational advances such as molecular endotypes for precision therapy, predictors of biologic and small-molecule response, and digital twins for disease forecasting.Looking forward, we chart future horizons: standardized, longitudinal multi-omic cohorts linked to real-world clinical data; causal inference and perturbational approaches (CRISPR, organoids, gnotobiotics) to move beyond association; interpretable machine learning to bridge black-box models and mechanism; and integrative “multi-scale” models connecting molecules to tissues to patients. We discuss equitable data ecosystems, privacy-preserving analytics, and regulatory pathways to deploy systems-biology-informed tools at the bedside. By converging biology, engineering, and clinical science, integrative systems biology is poised to transform IBD care—from early risk stratification and flare prediction to rational combination therapies and truly personalized remission strategies. Topic editors: Jan Marsal, Jon Florholmen, Rasmus Goll Source: https://www.frontiersin.org/research-topics/75714/integrative-systems-biology-for-inflammatory-bowel-disease-current-insights-and-future-horizons