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Expresión de canales K2P en neuronas ganglionares del sistema nervioso periférico

Authors: Bertone, N. (Nicolás); Cadaveira-Mosquera, A. (Alba); Pérez, M. (Montse); Reboreda, A. (Antonio); Fernández-Fernández, D. (Diego); Rivas-Ramírez, P. (Paula); González-Pérez, R.; +2 Authors

Expresión de canales K2P en neuronas ganglionares del sistema nervioso periférico

Abstract

El potencial de reposo de las neuronas del sistema nervioso central y periférico está determinado, al menos en parte, por la presencia de canales de potasio de doble dominio de poro (K2P), que permanecen abiertos a todos los voltajes. En los últimos años se ha observado que las neuronas pueden presentar varios miembros de la familia K2P, lo que les permitiría modular su potencial de reposo de acuerdo a diferentes estímulos. En el presente trabajo nos proponemos estudiar la expresión de canales K2P en neuronas del ganglio cervical superior (SCG) y ganglio nodoso (NG) de ratón. Se utilizaron RT-PCR y qRT-PCR para determinar y cuantificar la presencia del mRNA en ganglio entero, y técnicas inmunocitoquímicas para detectar la presencia de las proteínas en cultivos primarios de neuronas de SCG y NG. Se observó una fuerte expresión del mRNA de las subfamilias TRESK y TREK tanto en SCG como en NG. Las neuronas del SCG expresaron principalmente TRESK y TREK-2, mientras que TASK-1 y TASK-2 solo tuvieron una expresión moderada; finalmente, TREK-1 y TRAAK presentaban unos niveles de expresión más reducidos. Se estudió también la expresión del mRNA de TWIK-1, TWIK-2, THIK-1, THIK-2 Y TALK-1. En el NG los niveles de mRNA más altos correspondieron a TRESK y TREK-1, TASK-1 y TASK-2 presentaron unos niveles moderados, y los más reducidos correspondieron a TREK-2 y TRAAK. Tanto en el SCG como en el NG se detectó la presencia de las proteínas mediante marcaje con anticuerpos en cultivos primarios. Nuestros resultados demuestran la presencia de múltiples subunidades de canales K2P en neuronas del SCG y del NG.

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Spain
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Keywords

Acuicultura, Centro Oceanográfico de Vigo

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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