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Πέμπτη 27 Ιανουαρίου 2022

The role of Glut-1 and H+/K+-ATPase expression in hyperplasia of mice laryngeal epithelium induced by pepsin

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Eur Arch Otorhinolaryngol. 2022 Jan 27. doi: 10.1007/s00405-021-07221-6. Online ahead of print.

ABSTRACT

PURPOSE: To explore the role played by Glut-1 and H+/K+-ATPase in pepsin-induced, mouse laryngeal epithelial proliferation, growth, and development.

METHODS: We established a mouse model of laryngopharyngeal reflux and measured Glut-1 and H+/K+-ATPase expression levels in mouse laryngeal epithelium treated with artificial gastric juice containing pepsin.

RESULTS: Artificial pepsin-containing gastric juice induced significant hyperplastic changes in mouse laryngeal epithelium compared to control mice at 15, 30, and 45 days. Inhibition of Glut-1 expression by 2-DG significantly suppressed such hyperplasia compared to mice exposed to artificial gastric juice containing pepsin at 15, 30, and 45 days. After treatment with pepsin-containing artificial gastric juice, RT-PCR and Wester n blotting showed that the levels of Glut-1 and H+/K+-ATPase α, β increased significantly.

CONCLUSIONS: Pepsin-containing artificial gastric juice promoted mouse laryngeal epithelial hyperplasia associated with abnormal expression of Glut-1 and H+/K+-ATPase α, β.

PMID:35083516 | DOI:10.1007/s00405-021-07221-6

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Medicine by Alexandros G. Sfakianakis,Anapafseos 5 Agios Nikolaos 72100 Crete Greece,00302841026182,00306932607174,alsfakia@gmail.com,

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