Related Experiment Video
Updated: Jan 28, 2026
06:42
Subtype-selective Electroporation of Cortical Interneurons
Published on: August 18, 2014
9.2K
Neuroligins Differentially Mediate Subtype-Specific Synapse Formation in Pyramidal Neurons and Interneurons
Qiang-Qiang Xia1, Jing Xu1, Tai-Lin Liao1
1Department of Neurobiology, Institute of Neuroscience, NHC and CAMS Key Laboratory of Medical Neurobiology, Zhejiang University School of Medicine, Hangzhou, 310058, China.
Neuroscience Bulletin
|February 22, 2019
Summary
Neuroligins (NLs) are key proteins in brain synapse formation. This study reveals distinct roles for NL1, NL2, and NL3 in excitatory and inhibitory synapse development in both pyramidal neurons and interneurons.
Area of Science:
- Neuroscience
- Molecular Biology
- Synaptic Plasticity
Background:
- Neuroligins (NLs) are postsynaptic cell-adhesion proteins crucial for synapse formation and maintaining the brain's excitatory-inhibitory balance.
- NLs are implicated in autism spectrum disorder (ASD) and influence synaptic connections and plasticity in various brain regions.
- Current research primarily examines NL function in pyramidal neurons, leaving their role in interneurons largely unexplored.
Purpose of the Study:
- To investigate the subtype-specific functions of different neuroligins in synapse formation within both pyramidal neurons and interneurons.
- To elucidate the distinct contributions of NL1, NL2, and NL3 to excitatory and inhibitory synapse development.
Main Methods:
- Utilized viral-mediated shRNA knockdown to reduce neuroligin expression in cultured rat cortical neurons.
- Examined and quantified synapse formation in both pyramidal neurons and interneurons using advanced microscopy techniques.
Main Results:
- NL1 and NL3 were found to be involved in excitatory synapse formation in both neuron types.
- NL2 played a significant role in GABAergic synapse formation.
- NL1 demonstrated a more specific effect on GABAergic synapse formation compared to NL3, while NL2 preferentially impacted excitatory synapse density in pyramidal neurons.
Conclusions:
- Different neuroligins exhibit distinct roles in regulating the development and balance of excitatory and inhibitory synapses.
- These findings highlight the differential contributions of neuroligins to synaptic organization in distinct neuronal populations, including interneurons.
More Related Videos
09:27Cell Subtype-specific Analysis of Neuronal Membrane Proteasome in Somatosensory Neurons
Published on: October 10, 2025
535
06:50Post-differentiation Replating of Human Pluripotent Stem Cell-derived Neurons for High-content Screening of Neuritogenesis and Synapse Maturation
Published on: August 28, 2019
10.1K
Related Concept Videos
02:47The Synapse
133.0K
Neurons communicate with one another by passing on their electrical signals to other neurons. A synapse is the location where two neurons meet to exchange signals. At the synapse, the neuron that sends the signal is called the presynaptic cell, while the neuron that receives the message is called the postsynaptic cell. Note that most neurons can be both presynaptic and postsynaptic, as they both transmit and receive information.
133.0K
01:28Electrical Synapses
10.6K
Electrical synapses found in all nervous systems play important and unique roles. In these synapses, the presynaptic and postsynaptic membranes are very close together (3.5 nm) and are actually physically connected by channel proteins forming gap junctions.
Gap junctions allow the current to pass directly from one cell to the next. In contrast, in the chemical synapse, the neurotransmitters carry the information through the synaptic cleft from one neuron to the next. They consist of two...
Gap junctions allow the current to pass directly from one cell to the next. In contrast, in the chemical synapse, the neurotransmitters carry the information through the synaptic cleft from one neuron to the next. They consist of two...
10.6K
01:26Chemical Synapses
11.5K
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...
11.5K
01:26Chemical Synapses
4.5K
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...
4.5K
01:25Overview of Synapses
5.2K
A synapse is a specialized structure where two neurons connect, allowing them to pass an electrical or chemical signal to another neuron. It is the point of communication between neurons. The term "synapse" is derived from the Greek word "synapsis," which means "conjunction." The entire process of neural communication revolves around the synapse. When activated, a neuron releases chemicals known as neurotransmitters into the synapse. These neurotransmitters cross the synapse and bind to...
5.2K
01:31Adrenergic Receptors: ɑ Subtype
2.9K
Adrenoceptors are classified into α and ꞵ classes based on their potencies to catecholamine agonists. α-adrenoceptors show the following order of catecholamine potency:
Adrenaline ≥ Noradrenaline >> Isoprenaline
α-adrenoceptors are further divided into α1 and α2-adrenoceptors.
α1-Adrenoceptors: These receptors are located postsynaptically on the effector organs and cause constriction of smooth muscle mediated by activation of phospholipase...
Adrenaline ≥ Noradrenaline >> Isoprenaline
α-adrenoceptors are further divided into α1 and α2-adrenoceptors.
α1-Adrenoceptors: These receptors are located postsynaptically on the effector organs and cause constriction of smooth muscle mediated by activation of phospholipase...
2.9K