ArticleInflammation2025
Intestinal LGR4 Signalling Alters Bacterial translocation, Intrahepatic Microbiota composition, and Type 1 Interferon Expression in Murine Liver Fibrosis.
Article in Inflammation, 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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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
2 citing papers in PubMed.
- Review
- Vitamin D and Intestinal Diseases: Impact on Intestinal Immunity and Gut Barrier Function.Diseases (Basel, Switzerland) · 2026Review
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Authors and funding
4 authors.
Funding
Abstract
Liver fibrosis (LF) is linked to decreased type 1 interferon (IFN1) levels at steady-state, intestinal dysbacteriosis, leaky gut, and intestinal bacterial translocation. Liver leucine-rich repeats containing G protein-coupled receptor 4 (LGR4) signalling drives LF development, and intestinal LGR4 homeostasis maintains the intestinal stem cells. To explore the role of intestinal LGR4 signalling in LF and possible relationships with intrahepatic microbiota and IFN1, intraperitoneal injection of carbon tetrachloride (CCL4) was applied to induce LF in adult C57BL/6J mice with or without conditional knockout (cKO) of Lgr4 in intestinal epithelial cells (IECs). Fibrotic mice were simultaneously treated with intragastric bacteria as needed. Results showed that wild-type murine LF resulted in intestinal LGR4 reduction, increased intestinal permeability and bacterial translocation, decreased intrahepatic IFN1 levels, and decreased abundance of bacterial genera Lactobacillus, Dubosiella, and Bifidobacterium. Lgr4 cKO in IECs significantly promoted LF accompanied by increased intrahepatic abundance of genera Escherichia-Shigella, Klebsiella, Acinetobacter and decreased intrahepatic abundance of Lactobacillus, Dubosiella, and Bifidobacterium. In the absence of CCL4 challenge, Lgr4 cKO in IECs also resulted in increased intrahepatic Escherichia-Shigella and decreased Lactobacillus. In mice with Lgr4 cKO in IECs, intragastric administration of Lactobacillus significantly attenuated LF accompanied by significantly decreased intrahepatic Escherichia-Shigella, Klebsiella, and Acinetobacter along with increased intrahepatic Lactobacillus and IFN1 levels; however, deletion of the organismal IFN1 receptor abolished the Lactobacillus-mediated alleviation of LF. Co-culture of DC2.4 cells with Lactobacillus or its genomic DNA increased supernatant IFN-β levels. Overall, this study demonstrates that weakened intestinal LGR4 signalling facilitates LF by increasing intestinal permeability, altering intrahepatic microbiota composition, and decreasing liver IFN1 levels.
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