IL33 and nasal cavity polyp: The induction levels for IL-33 (Table 3) are remarkably similar and range between 2.0 ± 0.2 (p < 0.05) and 4.1 ± 2.35 (p < 0.05) fold for most TLR agonists (flagellin, PAM, CpG, and PGN) acting on epithelial cells isolated from healthy nasal mucosa or nasal polyps.