Related Experiment Video
Updated: Jun 20, 2026
10:34
A High-content Assay for Monitoring AMPA Receptor Trafficking
Published on: January 28, 2019
Posttranslational modifications of AMPA receptors in synaptic function and memory
Cristina A Muñoz de León-López1,2, Irene Navarro-Lobato1,2, Zafar U Khan3,4,5
1Laboratorio de Neurobiología, Centro de Investigaciones Medico Sanitarias (CIMES), Universidad de Málaga, Calle Marqués de Beccaria, 3, Campus Teatinos S/N, 29010, Malaga, Spain.
Cellular and Molecular Life Sciences : CMLS
|June 19, 2026
Summary
Posttranslational modifications regulate AMPA receptors, crucial for brain communication and memory. Dysregulation of these modifications impacts synaptic plasticity and is linked to cognitive decline in aging and neurological disorders.
Area of Science:
- Neuroscience
- Molecular Biology
- Cell Biology
Background:
- AMPA receptors mediate fast excitatory synaptic transmission in the brain.
- Receptor trafficking to and from synapses is vital for neuronal communication.
- Posttranslational modifications are key regulators of AMPA receptor function.
Purpose of the Study:
- To review the role of posttranslational modifications in AMPA receptor trafficking and function.
- To explore how these modifications influence synaptic plasticity and memory.
- To discuss the implications of aberrant modifications in cognitive decline and neurological disorders.
Main Methods:
- Literature review of studies on AMPA receptor posttranslational modifications.
- Analysis of research on synaptic plasticity and memory mechanisms.
- Examination of evidence linking modifications to aging and neurological diseases.
Main Results:
- AMPA receptor trafficking and synaptic retention are governed by diverse posttranslational modifications.
- These modifications regulate synaptic strength during plasticity and are essential for memory.
- Mutations in modification sites disrupt receptor trafficking, plasticity, and memory.
- Aberrant modifications are implicated in age-related memory dysfunction and disorders like Alzheimer's and schizophrenia.
Conclusions:
- Posttranslational modifications are critical regulators of AMPA receptor function, synaptic plasticity, and memory.
- Understanding these modifications offers insights into cognitive decline and neurological disorders.
- Targeting these modifications may hold therapeutic potential for cognitive impairments.
Related Concept Videos
01:35Long-term Potentiation
Long-term potentiation, or LTP, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTP is the process of synaptic strengthening that occurs over time between pre- and postsynaptic neuronal connections. The synaptic strengthening of LTP works in opposition to the synaptic weakening of long-term depression (LTD) and together are the main mechanisms that underlie learning and memory.
01:25Long-term Potentiation
Long-term potentiation, or LTP, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTP is the process of synaptic strengthening that occurs over time between pre and postsynaptic neuronal connections. The synaptic strengthening of LTP works in opposition to the synaptic weakening of long-term depression (LTD) and together are the main mechanisms that underlie learning and memory.
Hebbian LTP
LTP can occur when presynaptic neurons...
Hebbian LTP
LTP can occur when presynaptic neurons...
01:23Role of Neurotransmitters in Memory
Neurotransmitters are integral to the brain's communication system, enabling neurons to transmit signals across synapses. This chemical exchange underpins various cognitive functions, including memory processes. The role of neurotransmitters in memory is multifaceted, influencing the encoding, consolidation, and retrieval of memories through their action on different neural circuits.
Glutamate and Synaptic Plasticity
Glutamate, the brain's main excitatory neurotransmitter, is critical for...
Glutamate and Synaptic Plasticity
Glutamate, the brain's main excitatory neurotransmitter, is critical for...
01:30Ligand-Gated Ion Channel Receptor: Gating Mechanism
Ligand-gated ion channels are transmembrane proteins that play a vital role in intercellular communication and functions of the nervous system. They allow the influx of ions across the membrane once the neurotransmitter binds, allowing the subsequent transmission of electrical excitation across the neurons. Other ligand-gated ion channels, like the γ-aminobutyric acid (GABA) receptor, permit anions like chloride into the cells on the binding of the GABA molecule. Their entry into the cell...
01:03Long-term Depression
Long-term depression, or LTD, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTD is the process of synaptic weakening that occurs over time between pre and postsynaptic neuronal connections. The synaptic weakening of LTD works in opposition to synaptic strengthening by long-term potentiation (LTP) and together are the main mechanisms that underlie learning and memory.
Calcium Ion Concentration Mechanism
If over time, all...
Calcium Ion Concentration Mechanism
If over time, all...
01:05Long-term Depression
Long-term depression, or LTD, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTD is the process of synaptic weakening that occurs over time between pre and postsynaptic neuronal connections. The synaptic weakening of LTD works in opposition to synaptic strengthening by long-term potentiation (LTP) and together are the main mechanisms that underlie learning and memory.