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Development of a lung slice preparation for recording ion channel activity in alveolar epithelial type I cells

Bourke, Steven, Mason, Helen S., Borok, Zea, Kim, Kwang-Jin, Crandall, Edward D. and Kemp, Paul J. 2005. Development of a lung slice preparation for recording ion channel activity in alveolar epithelial type I cells. Respiratory Research 6 , 40. 10.1186/1465-9921-6-40

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BACKGROUND: Lung fluid balance in the healthy lung is dependent upon finely regulated vectorial transport of ions across the alveolar epithelium. Classically, the cellular locus of the major ion transport processes has been widely accepted to be the alveolar type II cell. Although evidence is now emerging to suggest that the alveolar type I cell might significantly contribute to the overall ion and fluid homeostasis of the lung, direct assessment of functional ion channels in type I cells has remained elusive. METHODS: Here we describe a development of a lung slice preparation that has allowed positive identification of alveolar type I cells within an intact and viable alveolar epithelium using living cell immunohistochemistry. RESULTS: This technique has allowed, for the first time, single ion channels of identified alveolar type I cells to be recorded using the cell-attached configuration of the patch-clamp technique. CONCLUSION: This exciting new development should facilitate the ascription of function to alveolar type I cells and allow us to integrate this cell type into the general model of alveolar ion and fluid balance in health and disease.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Biosciences
Publisher: BioMed Central
ISSN: 1465-9921
Date of First Compliant Deposit: 30 March 2016
Last Modified: 04 Jun 2017 08:01

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