Mouse organoid culture is a suitable model to study esophageal ion transport mechanisms

Korsós, Marietta Margaréta [Korsós, Marietta Margaréta (élettan, kórélettan), author] Department of Pharmacology and Pharmacotherapy (USZ / ASZMS); Bellák, Tamás [Bellák, Tamás (idegtudomány), author] Department of Anatomy, Histology and Embryology (USZ / ASZMS); Becskeházi, Eszter [Becskeházi, Eszter (Élettan és kóréle...), author] Department of Pharmacology and Pharmacotherapy (USZ / ASZMS); Gál, Eleonóra [Gál, Eleonóra (pancreas), author] Department of Pharmacology and Pharmacotherapy (USZ / ASZMS); Veréb, Zoltán [Veréb, Zoltán (molekuláris bioló...), author] Department of Dermatology and Allergology (USZ / ASZMS); Hegyi, Péter [Hegyi, Péter (Gasztroenterológia), author] 1st Department of Internal Medicine (UP / UPMS); First Department of Internal Medicine (USZ / ASZMS); Institute for Translational Medicine (UP / UPMS); Translational Medicine Research Group (UP / SZRC); Venglovecz, Viktória ✉ [Venglovecz, Viktória (Pankreász), author] Department of Pharmacology and Pharmacotherapy (USZ / ASZMS)

English Scientific Article (Journal Article)
  • SJR Scopus - Physiology: Q1
    Altered esophageal ion transport mechanisms play a key role in inflammatory and cancerous diseases of the esophagus, but epithelial ion processes have been less studied in the esophagus because of the lack of a suitable experimental model. In this study, we generated 3D esophageal organoids (EOs) from two different mouse strains and characterized the ion transport processes of the EOs. EOs form a cell-filled structure with a diameter of 250-300 µm and generated from epithelial stem cells as shown by FACS analysis. Using conventional PCR and immunostaining, the presence of Slc26a6 Cl-/HCO3- anion exchanger (AE), Na+/H+ exchanger (NHE), Na+/HCO3- cotransporter (NBC), cystic fibrosis transmembrane conductance regulator (CFTR) and anoctamin 1 Cl- channels were detected in EOs. Microfluorimetric techniques revealed high NHE, AE, and NBC activities, whereas that of CFTR was relatively low. In addition, inhibition of CFTR led to functional interactions between the major acid-base transporters and CFTR. We conclude that EOs provide a relevant and suitable model system for studying the ion transport mechanisms of esophageal epithelial cells, and they can be also used as preclinical tools to assess the effectiveness of novel therapeutic compounds in esophageal diseases associated with altered ion transport processes.
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    2021-12-08 23:52