Related Experiment Video
Updated: Dec 14, 2025

05:01
Inducing Long-Term Plasticity of Intrinsic Neuronal Excitability in Neurons of the Dorsal Lateral Geniculate Nucleus
Published on: September 20, 2024
697
New light on cortical neuropeptides and synaptic network plasticity
Stephen J Smith1, Michael Hawrylycz1, Jean Rossier2
1Allen Institute for Brain Science, 615 Westlake Ave N, Seattle WA, USA.
Current Opinion in Neurobiology
|July 18, 2020
Summary
New research uses single-cell RNA sequencing to explore neuropeptide signaling in the brain. This advances our understanding of how these potent molecules regulate cortical function and plasticity.
Area of Science:
- Neuroscience
- Molecular Biology
- Genomics
Background:
- Neuropeptides are potent cell-cell signaling molecules regulating brain function and behavior.
- Their impact on complex cortical synaptic networks remains poorly understood.
- Previous research focused on cellular-level mechanisms, limiting network-level analysis.
Purpose of the Study:
- To illuminate intricate patterns of cortical neuropeptide signaling gene expression.
- To highlight new tools for molecular access to neuropeptide signaling.
- To explore interactions between peptidergic and synaptic networks in the cortex.
Main Methods:
- Single-cell RNA-sequencing (scRNA-seq) transcriptomics.
- Development of novel molecular tools for studying neuropeptide signaling.
- Experimental and theoretical approaches to analyze network interactions.
Main Results:
- scRNA-seq revealed complex gene expression patterns of neuropeptide signaling in the cortex.
- New molecular tools provide enhanced access to study these signaling pathways.
- The study sets the stage for deeper mechanistic analysis of neuropeptide roles.
Conclusions:
- Advanced transcriptomic and molecular tools are crucial for understanding neuropeptide roles in cortical networks.
- Further research is needed to elucidate the functional impacts of neuropeptide-synaptic interactions.
- This work paves the way for exploring neuropeptide-mediated cortical function and plasticity.
Related Concept Videos
Neuroplasticity
1.3K
Neuroplasticity reflects the brain's remarkable capacity to adapt and evolve, responding dynamically to learning, experiences, or injury by reorganizing its neural circuitry. This reorganization involves creating new neural connections and refining old ones through a series of biological processes that contribute to the brain's lifelong development and adaptability.
1.3K
Long-term Potentiation
3.2K
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...
Hebbian LTP
LTP can occur when...
3.2K
Long-term Potentiation
57.7K
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.
57.7K
Chemical Synapses
4.0K
Chemical synapses are specialized sites between two neurons or between a neuron and a non-neuronal cell like a muscle, glandular or sensory cell.
Because chemical synapses depend on the release of neurotransmitter molecules from synaptic vesicles to pass on their signal, there is an approximately one millisecond delay between when the axon potential reaches the presynaptic terminal and when the neurotransmitter leads to opening of postsynaptic ion channels. Additionally, this signaling is...
Because chemical synapses depend on the release of neurotransmitter molecules from synaptic vesicles to pass on their signal, there is an approximately one millisecond delay between when the axon potential reaches the presynaptic terminal and when the neurotransmitter leads to opening of postsynaptic ion channels. Additionally, this signaling is...
4.0K
Chemical Synapses
10.9K
Chemical synapses are specialized sites between two neurons or between a neuron and a non-neuronal cell like a muscle, glandular or sensory cell.
Because chemical synapses depend on the release of neurotransmitter molecules from synaptic vesicles to pass on their signal, there is an approximately one millisecond delay between when the axon potential reaches the presynaptic terminal and when the neurotransmitter leads to opening of postsynaptic ion channels. Additionally, this signaling is...
Because chemical synapses depend on the release of neurotransmitter molecules from synaptic vesicles to pass on their signal, there is an approximately one millisecond delay between when the axon potential reaches the presynaptic terminal and when the neurotransmitter leads to opening of postsynaptic ion channels. Additionally, this signaling is...
10.9K
Role of Neurotransmitters in Memory
2.2K
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...
Glutamate and Synaptic Plasticity
Glutamate, the brain's main excitatory neurotransmitter, is...
2.2K

