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Related Concept Videos

Antiepileptic Drugs: Glutamate Antagonists01:14

Antiepileptic Drugs: Glutamate Antagonists

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Glutamate is a fundamental neurotransmitter in the central nervous system, playing a vital role in neuronal communication and various cognitive processes. Glutamate stands as the principal excitatory neurotransmitter in the brain. Its presence is crucial for the communication between neurons, underpinning essential processes such as synaptic transmission, neuronal excitability, and plasticity. These functions are vital for higher-order cognitive processes, including learning and memory. The...
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Antiepileptic drugs, such as levetiracetam (Keppra) and brivaracetam (Briviact), have emerged as crucial tools in managing epilepsy. These medications exert their therapeutic effects by targeting the synaptic vesicle protein SV2A, a transmembrane glycoprotein primarily found in the brain.
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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...
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γ-aminobutyric acid or GABA, plays a pivotal role as an inhibitory neurotransmitter in the brain. GABA pathway potentiators, also known as GABAergic drugs, are a class of pharmaceutical agents designed to enhance the functioning of the GABAergic system. These medications primarily treat epilepsy, a neurological disorder characterized by recurrent seizures.
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When an action potential reaches the presynaptic axon terminal, it releases neurotransmitters from the neuron into the synaptic cleft at a chemical synapse. The released neurotransmitter can be excitatory or inhibitory. The critical criteria commonly used to determine whether a molecule is a neurotransmitter at a chemical synapse are the molecule's presence in the presynaptic neuron. Second, its release is in response to strong presynaptic depolarization. And lastly, the presence of...
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Related Experiment Video

Updated: Oct 6, 2025

Using Enzyme-based Biosensors to Measure Tonic and Phasic Glutamate in Alzheimer's Mouse Models
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Tetraspanins as Potential Modulators of Glutamatergic Synaptic Function.

Amina Becic1, Jennifer Leifeld1, Javeria Shaukat1

  • 1Department of Biochemistry I - Receptor Biochemistry, Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Bochum, Germany.

Frontiers in Molecular Neuroscience
|January 20, 2022
PubMed
Summary

Tetraspanins (Tspans) are crucial membrane proteins in the brain, influencing glutamatergic neurotransmission and synaptic plasticity. This review explores their roles in CNS processes and compares Tspan structures with glutamate receptor proteins.

Keywords:
CNSglutamate receptormodulator structuressynaptic functiontetraspanins

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Area of Science:

  • Neuroscience
  • Molecular Biology
  • Cell Biology

Background:

  • Tetraspanins (Tspans) are ubiquitous eukaryotic membrane proteins with four transmembrane domains.
  • They regulate diverse cellular functions, including cell adhesion, motility, signaling, and immune responses.
  • Tspans are implicated in various diseases and form extensive protein networks, including in the central nervous system (CNS).

Purpose of the Study:

  • To review current knowledge on tetraspanin functions within the brain.
  • To specifically focus on the impact of tetraspanins on glutamatergic neurotransmission.
  • To compare tetraspanin structures with auxiliary proteins of glutamate receptors.

Main Methods:

  • Literature review of tetraspanin research in the CNS.
  • Analysis of studies on tetraspanin involvement in synaptic function.
  • Structural comparison of tetraspanins and glutamate receptor-associated proteins.

Main Results:

  • Tetraspanins play significant roles in CNS processes, with Tspan7 affecting dendritic spine formation and glutamatergic transmission.
  • Tspan6 is linked to neurological disorders like epilepsy and intellectual disability.
  • Specific tetraspanins are integral to the modulation of glutamatergic neurotransmission.

Conclusions:

  • Tetraspanins are critical regulators of neuronal function and plasticity in the brain.
  • Understanding tetraspanin structure-function relationships can provide insights into neurological disorders.
  • Further research into tetraspanins offers potential therapeutic targets for CNS diseases.