The epithelial sodium channel and the cell migration

Sodium is the main extracellular cation, and its osmotic pressure is an important determinant of the extracellular fluid volume. We were interested in the expression and functional characteristics of the epithelial sodium channel (ENaC) that mediates the Na+ entry into the cells from the luminal flu...

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Detalles Bibliográficos
Autores principales: Marino, Gabriela I., Kotsias, Basilio A.
Formato: Articulo
Lenguaje:Inglés
Publicado: 2013
Materias:
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/131285
https://pmr.safisiol.org.ar/uploadsarchivos/vol_6_3_marino_and_kotsias_1_.pdf
Aporte de:
id I19-R120-10915-131285
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Médicas
ENaC
currents
cell migration
wound healing
BeWo cell line
Preeclampsia
spellingShingle Ciencias Médicas
ENaC
currents
cell migration
wound healing
BeWo cell line
Preeclampsia
Marino, Gabriela I.
Kotsias, Basilio A.
The epithelial sodium channel and the cell migration
topic_facet Ciencias Médicas
ENaC
currents
cell migration
wound healing
BeWo cell line
Preeclampsia
description Sodium is the main extracellular cation, and its osmotic pressure is an important determinant of the extracellular fluid volume. We were interested in the expression and functional characteristics of the epithelial sodium channel (ENaC) that mediates the Na+ entry into the cells from the luminal fluid in many reabsorbing epithelia and in the human placenta. Aldosterone is a key regulator of ENaC channel and stimulates protein methylation on the β-subunit of ENaC. Aldosterone and 8Br-cAMP promoted cellular migration in a wound healing model in trophoblastic BeWo cells. Amiloride blocked this effect. Electrophysiological studies showed an increase in ENaC current in the presence of aldosterone. We suggest that aldosterone positively influences wound healing through methylation of ENaC. On the other hand, we found a diminished expression of the three subunits of the ENaC in the membranes of preeclamptic placentas in comparison with the normal ones and this may have consequences for the cell migration and ion transport involved in the pathophysiology of preeclampsia.
format Articulo
Articulo
author Marino, Gabriela I.
Kotsias, Basilio A.
author_facet Marino, Gabriela I.
Kotsias, Basilio A.
author_sort Marino, Gabriela I.
title The epithelial sodium channel and the cell migration
title_short The epithelial sodium channel and the cell migration
title_full The epithelial sodium channel and the cell migration
title_fullStr The epithelial sodium channel and the cell migration
title_full_unstemmed The epithelial sodium channel and the cell migration
title_sort epithelial sodium channel and the cell migration
publishDate 2013
url http://sedici.unlp.edu.ar/handle/10915/131285
https://pmr.safisiol.org.ar/uploadsarchivos/vol_6_3_marino_and_kotsias_1_.pdf
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