Palmer C, et al. - This research entailed the examination of the role of regulatory T cells in the regulation of upper airway inflammation. The findings elucidated the differentiation and functioning of regulatory T cells (Tregs). The comprehension of these cells could assist in harnessing the natural immunosuppressive activity of Tregs in order to ameliorate the chronic inflammation associated with allergic rhinitis (AR) and chronic rhinosinusitis with nasal polyps (CRSwNP).