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Related Experiment Video

Updated: May 12, 2026

Genetic Manipulation of Cerebellar Granule Neurons In Vitro and In Vivo to Study Neuronal Morphology and Migration

Genetic Manipulation of Cerebellar Granule Neurons In Vitro and In Vivo to Study Neuronal Morphology and Migration

Published on: March 17, 2014

DOC2B and Munc13-1 differentially regulate neuronal network activity.

Ayal Lavi¹, Anton Sheinin¹, Ronit Shapira²

¹Department of Neurobiology, The George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv 69978, Israel Sagol School of Neuroscience, Tel Aviv University, Tel Aviv 69978, Israel.

Cerebral Cortex (New York, N.Y. : 1991)

|March 30, 2013

Summary

This summary is machine-generated.

Altering synaptic proteins DOC2B and Munc13-1 impacts neuronal networks differently. Increased asynchronous release from single neurons promotes network bursting activity, revealing key insights into synaptic function.

Keywords:

MEA recording asynchronous release genetic manipulation network burst presynaptic proteins

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Last Updated: May 12, 2026

Genetic Manipulation of Cerebellar Granule Neurons In Vitro and In Vivo to Study Neuronal Morphology and Migration

Genetic Manipulation of Cerebellar Granule Neurons In Vitro and In Vivo to Study Neuronal Morphology and Migration

Published on: March 17, 2014

Induction of Protein Deletion Through In Utero Electroporation to Define Deficits in Neuronal Migration in Transgenic Models

Induction of Protein Deletion Through In Utero Electroporation to Define Deficits in Neuronal Migration in Transgenic Models

Published on: January 12, 2015

Area of Science:

Neuroscience
Molecular Biology
Systems Neuroscience

Background:

Synaptic protein alterations impact synaptic transmission and plasticity.
The precise effects on neuronal network activity remain unclear.

Purpose of the Study:

To elucidate how presynaptic release manipulation affects neuronal network activity.
To investigate the distinct roles of DOC2B and Munc13-1 in neuronal network function.

Main Methods:

Utilized microelectrode array (MEA) for network activity analysis.
Combined pharmacological tools and genetic manipulation of synaptic proteins.
Investigated effects of DOC2B and Munc13-1 overexpression.

Main Results:

DOC2B and Munc13-1 overexpression produced opposite effects on network activity.
Both proteins increased overall spike counts but altered spike distribution.
DOC2B enhanced firing rate within bursts, while Munc13-1 reduced it but increased network burst rate.
DOC2B's effects mimicked by strontium (asynchronous release), not a spontaneous release mutant.

Conclusions:

Increased asynchronous release at the single-neuron level promotes network bursting.
Demonstrates the network level's role in understanding synaptic protein function.
Highlights the transformation of synaptic release manipulation from cellular to network activity.