Expression of an outwardly rectifying K+ channel in rat microglia cultivated on teflon.

Abstract:

:Membrane currents of cultured human monocytes and rat microglia were recorded with the whole-cell patch clamp technique. Freshly isolated monocytes or resting (proliferating) microglia express only inwardly rectifying K+ channels. However, incubation in teflon bags leads to the expression of additional, outwardly rectifying K+ channels. The outward K+ conductance of microglial cells was inhibited by intracellular Cs+ and extracellular 4-aminopyridine or tetraethylammonium. Functional similarities with the microglial outwardly rectifying K+ channel were found in the Kn-channel of lymphocytes which has recently been cloned (RGK5). The polymerase chain reaction (PCR) was used to demonstrate the presence of RGK5-like mRNA in microglia.

journal_name

Neurosci Lett

journal_title

Neuroscience letters

authors

Nörenberg W,Appel K,Bauer J,Gebicke-Haerter PJ,Illes P

doi

10.1016/0304-3940(93)9001-0

subject

Has Abstract

pub_date

1993-09-17 00:00:00

pages

69-72

issue

1

eissn

0304-3940

issn

1872-7972

pii

0304-3940(93)9001-0

journal_volume

160

pub_type

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