Mast cells inhibit stem cell-driven epithelial repair in IBD via suppressing Wnt/lrp6/β-catenin signaling pathway

Key Points

• The study aims to investigate the role of mast cells in mediating epithelial regeneration in inflammatory bowel disease (IBD).
• Assessment of mast cell secretions, focusing on CPA3.
• Evaluation of inflammatory signaling pathways in epithelial cells.
• Analysis of neutrophil recruitment in the context of mast cell activity.
• Mast cells were found to inhibit intestinal stem cell-mediated epithelial regeneration.
• The suppression of the Wnt/lrp6/β-catenin signaling pathway was confirmed as a key mechanism.
• Inhibition occurred both directly through CPA3 secretion and indirectly via neutrophil recruitment.