Allergen exposure boosts peripheral Th9 responses in patients with local allergic rhinitis.

Key Points: Intranasal allergen exposure increases peripheral total Th2 and Th9 cells in patients with local allergic rhinitis (LAR). Peripheral T-cell response seems dominated by Th9 cells in patients with LAR, whereas Th2 responses prevail in patients with allergic rhinitis. Our results identify Th9 cells as potential therapeutic targets for patients with LAR.
(© 2023 The Authors. International Forum of Allergy & Rhinology published by Wiley Periodicals LLC on behalf of American Academy of Otolaryngic Allergy and American Rhinologic Society.)