Beta agonist regulation of sodium transport in fetal lung epithelium: roles of cell volume, cytosolic chloride and protein tyrosine kinase.

1) A beta agonist stimulated Na+ transport and decreased the intracellular Cl concentration ([Cl]c) associated with cell shrinkage via an increase in cytosolic cAMP level by activating adenylate cyclase in rat fetal distal lung epithelial (FDLE) cells. 2) Lowering [Cl-]c activated a 28-pS nonselecti...

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Detalles Bibliográficos
Autores principales: Marunaka, Y, Niisato, N, Ito, Y
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Korean Academy of Medical Sciences 2000
Materias:
Research Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3202177/
https://www.ncbi.nlm.nih.gov/pubmed/10981510
Descripción
Sumario:1) A beta agonist stimulated Na+ transport and decreased the intracellular Cl concentration ([Cl]c) associated with cell shrinkage via an increase in cytosolic cAMP level by activating adenylate cyclase in rat fetal distal lung epithelial (FDLE) cells. 2) Lowering [Cl-]c activated a 28-pS nonselective cation (NSC) channel by elongating the open time of the channel. 3) cAMP signals were converted to a protein tyrosine kinase (PTK)-mediated signal. 4) The PTK-mediated signal was involved in the cAMP-stimulated Na+ transport in rat FDLE cells.

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