A Dual-Pathway Wnt-IL-13 Fusion Protein Enhances Human Intestinal Regeneration Through Tuft Cell Activation
Yang, L.; Huang, L.; van Rijt, F. L. H.; Zhang, B.; Giladi, A.; Bernink, J. H. J.; Clevers, H.; Janda, C. Y.
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Compromised intestinal regenerative responses drive severe inflammatory conditions, such as inflammatory bowel disease and graft-versus-host disease, affecting millions of people worldwide each year. Despite extensive research, effective therapies remain limited, and no curative treatments are currently available. We recently discovered that human intestinal tuft cells promote tissue repair following injury through Wnt and IL-4/IL-13 signaling pathways. Building on this discovery, here we report the engineering and functional validation of a synthetic Wnt-IL-13 fusion protein that simultaneously activates both the Wnt and IL-4/IL-13 signaling pathways to enhance human intestinal tuft cell activity. Employing human organoids technology, we demonstrate that this therapeutic approach promotes mucosal healing.
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