LTP induction boosts glutamate spillover by driving withdrawal of perisynaptic astroglia

C Henneberger, L Bard, A Panatier, JP Reynolds… - Neuron, 2020 - cell.com
Extrasynaptic actions of glutamate are limited by high-affinity transporters expressed by
perisynaptic astroglial processes (PAPs): this helps maintain point-to-point transmission in …

Physiological synaptic activity and recognition memory require astroglial glutamine

G Cheung, D Bataveljic, J Visser, N Kumar… - Nature …, 2022 - nature.com
Presynaptic glutamate replenishment is fundamental to brain function. In high activity
regimes, such as epileptic episodes, this process is thought to rely on the glutamate …

The dendritic branch is the preferred integrative unit for protein synthesis-dependent LTP

A Govindarajan, I Israely, SY Huang, S Tonegawa - Neuron, 2011 - cell.com
The late-phase of long-term potentiation (L-LTP), the cellular correlate of long-term memory,
induced at some synapses facilitates L-LTP expression at other synapses receiving …

Astrocytes mediate in vivo cholinergic-induced synaptic plasticity

M Navarrete, G Perea, DF de Sevilla… - PLoS …, 2012 - journals.plos.org
Long-term potentiation (LTP) of synaptic transmission represents the cellular basis of
learning and memory. Astrocytes have been shown to regulate synaptic transmission and …

LTP requires a reserve pool of glutamate receptors independent of subunit type

AJ Granger, Y Shi, W Lu, M Cerpas, RA Nicoll - Nature, 2013 - nature.com
Long-term potentiation (LTP) of synaptic transmission is thought to be an important cellular
mechanism underlying memory formation. A widely accepted model posits that LTP requires …

A proportional but slower NMDA potentiation follows AMPA potentiation in LTP

AJ Watt, PJ Sjöström, M Häusser, SB Nelson… - Nature …, 2004 - nature.com
Most excitatory glutamatergic synapses contain both AMPA and NMDA receptors, but
whether these receptors are regulated together or independently during synaptic plasticity …

Astroglial glutamate signaling and uptake in the hippocampus

CR Rose, L Felix, A Zeug, D Dietrich… - Frontiers in Molecular …, 2018 - frontiersin.org
Astrocytes have long been regarded as essentially unexcitable cells that do not contribute to
active signaling and information processing in the brain. Contrary to this classical view, it is …

Chronic inactivation of a neural circuit enhances LTP by inducing silent synapse formation

KL Arendt, F Sarti, L Chen - Journal of Neuroscience, 2013 - Soc Neuroscience
Chronic inactivation of a neural network is known to induce homeostatic upregulation of
synaptic strength, a form of synaptic plasticity that differs from Hebbian-type synaptic …

Extrasynaptic glutamate spillover in the hippocampus: evidence and implications

DM Kullmann, F Asztely - Trends in neurosciences, 1998 - cell.com
In the mammalian brain most excitatory transmission is mediated by glutamate binding to
AMPA and NMDA receptors. These receptors have markedly different biophysical …

The relationship between glutamate dynamics and activity-dependent synaptic plasticity

JR Barnes, B Mukherjee, BC Rogers… - Journal of …, 2020 - Soc Neuroscience
The spatiotemporal dynamics of excitatory neurotransmission must be tightly regulated to
achieve efficient synaptic communication. By limiting spillover, glutamate transporters are …