RT Journal Article T1 Cannabinoid WIN55,212-2 restores bronchial epithelium by regulating oxidative stress and STAT6 phosphorylation A1 Pérez Diego, Mario A1 Angelina Querencias, Alba A1 Pat, Yağız A1 Maldonado, Angel A1 Sevilla Ortega, Carmen A1 Martín De La Cruz, Leticia A1 Yazici, Duygu A1 Rückert, Beate A1 Sokolowska, Milena A1 Martín-Fontecha Corrales, María Del Mar A1 Akdis, Mübeccel A1 Akdis, Cezmi A A1 Palomares Gracia, Óscar AB Background: Viral infections and type 2 immune responses perpetuate airway epithelial barrier dysfunction and inflammation, leading to the development and progression of asthma. The synthetic cannabinoid WIN55,212-2 displays anti-inflammatory properties by acting on different immune system cells.Objective: We sought to investigate the capacity of WIN55,212-2 to restore bronchial epithelial barrier function in asthma in the context of viral infections or type 2-driven inflammation.Methods: Air-liquid interface cultures of human bronchial epithelial cells and human bronchial epithelial spheroids were generated to assess the capacity of WIN55,212-2 to restore airway epithelial barrier damage induced by human rhinovirus A16 (RV-A16) infection or type 2 inflammation. RT-PCR, cytokine quantification, permeability assays, metabolic studies, flow cytometry, and Western blot techniques were employed to assess the effects of WIN55,212-2 on the airway epithelium. The in vivo relevance of our findings was evaluated in a murine model of IL-13-induced airway inflammation.Results: Prophylactic and therapeutic administration of WIN55,212-2 accelerated the recovery from RV-A16-induced bronchial epithelial barrier damage. WIN55,212-2 inhibited the acquisition of IL-13-induced type 2 asthma features in air-liquid interface cultures, self-assembled bronchial epithelial spheroids, and in vivo asthma model of airway inflammation and epithelial dysfunction. Mechanistically, WIN55,212-2 impaired IL-13-induced oxidative stress in epithelial cells, restoring the activity of protein tyrosine phosphatases, which in turn inhibited pSTAT6-mediated signaling pathways and asthma features.Conclusions: The cannabinoid WIN55,212-2 displays airway epithelial barrier protective effects during RV-A16 infection or type 2 inflammation by mechanisms associated with the modulation of oxidative metabolism and pSTAT6-mediated signaling. PB PubMed YR 2025 FD 2025-05 LK https://hdl.handle.net/20.500.14352/122508 UL https://hdl.handle.net/20.500.14352/122508 LA eng NO Pérez-Diego M, Angelina A, Pat Y, Maldonado A, Sevilla-Ortega C, Martín-Cruz L, Yazici D, Rückert B, Sokolowska M, Martín-Fontecha M, Akdis M, Akdis CA, Palomares O. Cannabinoid WIN55,212-2 restores bronchial epithelium by regulating oxidative stress and STAT6 phosphorylation. J Allergy Clin Immunol. 2025 May 16:S0091-6749(25)00551-2. doi: 10.1016/j.jaci.2025.05.002. Epub ahead of print. PMID: 40383489. NO Ministerio de Ciencia e Innovación (España) NO Universidad Complutense de Madrid DS Docta Complutense RD 22 mar 2026