Transient increase in neuronal chloride concentration by neuroactive aminoacids released from glioma cells
نویسندگان
چکیده
منابع مشابه
Transient increase in neuronal chloride concentration by neuroactive aminoacids released from glioma cells
Neuronal chloride concentration ([Cl(-)](i)) is known to be dynamically modulated and alterations in Cl(-) homeostasis may occur in the brain at physiological and pathological conditions, being also likely involved in glioma-related seizures. However, the mechanism leading to changes in neuronal [Cl(-)](i) during glioma invasion are still unclear. To characterize the potential effect of glioma ...
متن کاملLocal impermeant anions establish the neuronal chloride concentration.
Neuronal intracellular chloride concentration [Cl(-)](i) is an important determinant of γ-aminobutyric acid type A (GABA(A)) receptor (GABA(A)R)-mediated inhibition and cytoplasmic volume regulation. Equilibrative cation-chloride cotransporters (CCCs) move Cl(-) across the membrane, but accumulating evidence suggests factors other than the bulk concentrations of transported ions determine [Cl(-...
متن کاملComment on "Local impermeant anions establish the neuronal chloride concentration".
Glykys et al. (Reports, 7 February 2014, p. 670) conclude that, rather than ion transporters, "local impermeant anions establish the neuronal chloride concentration" and thereby determine "the magnitude and direction of GABAAR currents at individual synapses." If this were possible, perpetual ion-motion machines could be constructed. The authors' conclusions conflict with basic thermodynamic pr...
متن کاملExpression of voltage-gated chloride channels in human glioma cells.
Voltage-gated chloride channels have recently been implicated as being important for cell proliferation and invasive cell migration of primary brain tumors cells. In the present study we provide several lines of evidence that glioma Cl- currents are primarily mediated by ClC-2 and ClC-3, two genes that belong to the ClC superfamily. Transcripts for ClC-2 thru ClC-7 were detected in a human glio...
متن کاملATP released from astrocytes during swelling activates chloride channels.
ATP release from astrocytes contributes to calcium ([Ca(2+)]) wave propagation and may modulate neuronal excitability. In epithelial cells and hepatocytes, cell swelling causes ATP release, which leads to the activation of a volume-sensitive Cl(-) current (I(Cl,swell)) through an autocrine pathway involving purinergic receptors. Astrocyte swelling is counterbalanced by a regulatory volume decre...
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ژورنال
عنوان ژورنال: Frontiers in Molecular Neuroscience
سال: 2012
ISSN: 1662-5099
DOI: 10.3389/fnmol.2012.00100