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T cell dysregulation, and mast cell enrichment. We identified key immune-epithelial interactions in tissue remodeling, particularly involving basal progenitor and tuft cells. A distinct basal cell trajectory was implicated in nasal polyp formation. Orthogonal validation with spatial transcriptomics from >100 individuals with CRS revealed conserved tissue remodeling features. Our study provides insights into CRS pathophysiology, highlighting immune-epithelial interactions as potential therapeutic targets in chronic inflammation, also serving as a resource for dissecting immune disease mechanisms.
Liao et al. (Sat,) studied this question.