Genetic disruption of system xc-mediated glutamate release from astrocytes increases negative-outcome behaviors while preserving basic brain function in rat

EM Hess, SN Kassel, G Simandl… - Journal of …, 2023 - Soc Neuroscience
The importance of neuronal glutamate to synaptic transmission throughout the brain
illustrates the immense therapeutic potential and safety risks of targeting this system …

[HTML][HTML] Sex-and age-dependent contribution of System xc–to cognitive, sensory, and social behaviors revealed by comprehensive behavioral analyses of System xc …

C Frare, SK Pitt, SJ Hewett - Frontiers in Behavioral Neuroscience, 2023 - frontiersin.org
Background System xc–(Sxc–) is an important heteromeric amino acid cystine/glutamate
exchanger that plays a pivotal role in the CNS by importing cystine into cells while exporting …

Behavioral assessment of acute inhibition of system xc - in rats

V Lutgen, J Resch, K Qualmann, NJ Raddatz… - …, 2014 - Springer
Rationale Gaps in our understanding of glutamatergic signaling may be key obstacles in
accurately modeling complex CNS diseases. System xc-is an example of a poorly …

Absence of system xc-in mice decreases anxiety and depressive-like behavior without affecting sensorimotor function or spatial vision

E Bentea, T Demuyser, J Van Liefferinge… - Progress in Neuro …, 2015 - Elsevier
There is considerable preclinical and clinical evidence indicating that abnormal changes in
glutamatergic signaling underlie the development of mood disorders. Astrocytic glutamate …

Regulation of hippocampal synaptic strength by glial xCT

LE Williams, DE Featherstone - Journal of Neuroscience, 2014 - Soc Neuroscience
Most extracellular glutamate in the brain is released by xCT, a glial antiporter that exports
glutamate and imports cystine. The function of xCT, and extracellular glutamate in general …

Main path and byways: non‐vesicular glutamate release by system xc as an important modifier of glutamatergic neurotransmission

A Massie, S Boillee, S Hewett… - Journal of …, 2015 - Wiley Online Library
Abstract System xc− is a cystine/glutamate antiporter that exchanges extracellular cystine for
intracellular glutamate. Cystine is intracellularly reduced to cysteine, a building block of …

Hyperexcitability and brain morphological differences in mice lacking the cystine/glutamate antiporter, system xc

SMS Sears, SH Roberts… - Journal of neuroscience …, 2021 - Wiley Online Library
Abstract System xc−(Sxc−) is a heteromeric antiporter (L‐cystine/L‐glutamate exchanger)
expressed predominately on astrocytes in the central nervous system. Its activity contributes …

[HTML][HTML] Targeting glia with N-acetylcysteine modulates brain glutamate and behaviors relevant to neurodevelopmental disorders in C57BL/6J mice

AMS Durieux, C Fernandes, D Murphy… - Frontiers in behavioral …, 2015 - frontiersin.org
An imbalance between excitatory (E) glutamate and inhibitory (I) GABA transmission may
underlie neurodevelopmental conditions such as autism spectrum disorder (ASD) and …

Loss of system xc− does not induce oxidative stress but decreases extracellular glutamate in hippocampus and influences spatial working memory and limbic seizure …

D De Bundel, A Schallier, E Loyens… - Journal of …, 2011 - Soc Neuroscience
System xc− exchanges intracellular glutamate for extracellular cystine, giving it a potential
role in intracellular glutathione synthesis and nonvesicular glutamate release. We report that …

[HTML][HTML] Loss of functional system xc uncouples aberrant postnatal neurogenesis from epileptogenesis in the hippocampus of Kcna1-KO mice

MS Aloi, SJ Thompson, N Quartapella, JL Noebels - Cell reports, 2022 - cell.com
Summary Mutations in Kv1. 1 (Kcna1) voltage-gated potassium channels in humans and
mice generate network hyperexcitability, enhancing aberrant postnatal neurogenesis in the …