ArticleThe ISME journal2025
Gut microbial production of lithocholic acid reprograms pro-resolutive macrophages to enhance vedolizumab responsiveness via the TGR5/FXR-NF-κB axis.
Article in The ISME journal, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Investigation of symbiotic-like interactions between Pseudomonas chlororaphis and non-pathogenic Fusarium sp. for enhanced biopreparation potential.Folia microbiologica · 2026Article
- Microbial metabolic memory in inflammatory bowel disease: microbiota-derived metabolites, host-microbe reprogramming, and relapse susceptibility.Frontiers in microbiology · 2026Review
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Authors and funding
14 authors.
Funding
Abstract
Crohn's disease (CD) is a complex chronic transmural inflammatory bowel disease. Although vedolizumab (VDZ) markedly improves clinical outcomes in CD, treatment non-response remains a significant limitation, constraining its broader utility. Elucidating the mechanisms underlying VDZ responsiveness is thus critically needed. In this research, we employed a humanized mouse model of 2,4,6-trinitrobenzene sulfonic acid-induced colitis to investigate VDZ treatment response in CD. Our findings indicate that VDZ significantly alleviated disease phenotypes in a portion of CD mice. Integrated metagenomic and metabolomic profiling identified baseline gut microbiota-derived secondary bile acids as potential predictors of VDZ efficacy. Subsequent fecal microbiota transplantation from clinical donors into pseudo-germ-free mice confirmed that gut microbial composition critically influences VDZ responsiveness. Targeted metabolomics further pinpointed lithocholic acid (LCA) as a key microbially derived metabolite correlated with therapeutic remission. Single-cell RNA sequencing also revealed that intestinal macrophages serve as pivotal mediators of LCA-driven modulation of treatment outcomes. Furthermore, transcriptomic analyses demonstrated that LCA polarizes macrophages toward an M2-resolutive phenotype via concurrent engagement of the TGR5/FXR and their downstream nuclear factor kappa-B (NF-κB) pathways. Ultimately, using a conditioned medium co-culture system, we established that the regulatory effects of pro-resolutive macrophage niche on treatment response in a manner dependent on the TGR5/FXR-NF-κB axis. Taken together, our study elucidates a microbiota-immune circuit in which gut microbial metabolite LCA augments VDZ responsiveness in CD by reprogramming macrophages toward a pro-resolutive phenotype via the TGR5/FXR-NF-κB signaling network. These insights provide a mechanistic foundation for biomarker development and personalized therapeutic strategies in inflammatory bowel disease.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.