RT info:eu-repo/semantics/article T1 Small Molecule Anion Carriers Correct Abnormal Airway Surface Liquid Properties in Cystic Fibrosis Airway Epithelia A1 Gianotti, Ambra A1 Capurro, Valeria A1 Delpiano, Livia A1 Mielczarek, Marcin A1 García Valverde, María A1 Carreira Barral, Israel A1 Ludovico, Alessandra A1 Fiore, Michele A1 Baroni, Debora A1 Moran, Óscar A1 Quesada Pato, Roberto A1 Caci, Emanuela K1 Cystic fibrosis K1 Anionophore K1 Bronchial epithelial cells culture K1 Ion transport K1 Periciliar mucus properties K1 Medicina K1 Medicine K1 Salud K1 Health K1 Química orgánica K1 Chemistry, Organic AB Cystic fibrosis (CF) is a genetic disease characterized by the lack of cystic fibrosis transmembrane conductance regulator (CFTR) protein expressed in epithelial cells. The resulting defective chloride and bicarbonate secretion and imbalance of the transepithelial homeostasis lead to abnormal airway surface liquid (ASL) composition and properties. The reduced ASL volume impairs ciliary beating with the consequent accumulation of sticky mucus. This situation prevents the normal mucociliary clearance, favouring the survival and proliferation of bacteria and contributing to the genesis of CF lung disease. Here, we have explored the potential of small molecules capable of facilitating the transmembrane transport of chloride and bicarbonate in order to replace the defective transport activity elicited by CFTR in CF airway epithelia. Primary human bronchial epithelial cells obtained from CF and non-CF patients were differentiated into a mucociliated epithelia in order to assess the effects of our compounds on some key properties of ASL. The treatment of these functional models with non-toxic doses of the synthetic anionophores improved the periciliary fluid composition, reducing the fluid re-absorption, correcting the ASL pH and reducing the viscosity of the mucus, thus representing promising drug candidates for CF therapy. PB MDPI SN 1422-0067 YR 2020 FD 2020 LK http://hdl.handle.net/10259/8329 UL http://hdl.handle.net/10259/8329 LA eng NO This work was financially supported by the European Union’s Horizon 2020 research and innovation programme under grant agreement no. 667079 and from the Italian Cystic Fibrosis Foundation (FFC no. CP/2012 with the contribution of ‘Delegazione FFC di Verona and Imola-Romagna’ and ‘Delegazione FFC di Roma’). DS Repositorio Institucional de la Universidad de Burgos RD 11-dic-2024