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Protein Dynamics in Living Cells

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Updated: Sep 4, 2025

DetectSyn: A Rapid, Unbiased Fluorescent Method to Detect Changes in Synapse Density

DetectSyn: A Rapid, Unbiased Fluorescent Method to Detect Changes in Synapse Density

Published on: July 22, 2022

DetectSyn: A Rapid, Unbiased Fluorescent Method to Detect Changes in Synapse Density.

Chelcie F Heaney¹, Colin J McArdle², Kimberly F Raab-Graham³

¹Wake Forest Translational Alcohol Research Center, Wake Forest School of Medicine; Physiology and Pharmacology, Wake Forest School of Medicine.

Journal of Visualized Experiments : Jove

|July 22, 2022

Summary

DetectSyn is a new, accessible fluorescent method to measure synapse density changes. This technique rapidly assesses neuronal communication changes in disease and drug studies, offering a more representative analysis than traditional methods.

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Last Updated: Sep 4, 2025

DetectSyn: A Rapid, Unbiased Fluorescent Method to Detect Changes in Synapse Density

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Published on: July 22, 2022

Real-Time Fluorescent Measurement of Synaptic Functions in Models of Amyotrophic Lateral Sclerosis

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Quantifying Synapses: an Immunocytochemistry-based Assay to Quantify Synapse Number

Quantifying Synapses: an Immunocytochemistry-based Assay to Quantify Synapse Number

Published on: November 16, 2010

Area of Science:

Neuroscience
Cell Biology
Biochemistry

Background:

Synaptic density is crucial for neuronal circuit function and is impaired in neurological disorders like Alzheimer's disease and major depressive disorder (MDD).
Current methods for assessing synapse numbers, such as fluorescent markers or spine protein detection, often only capture postsynaptic changes.
Gold-standard techniques like electron microscopy are time-consuming, costly, and analyze limited neuronal populations, hindering comprehensive study of synaptic changes.

Purpose of the Study:

To introduce DetectSyn, a novel, rapid fluorescent technique for quantifying synapse formation and elimination.
To provide an accessible alternative to traditional, labor-intensive methods for analyzing synaptic density.
To enable more representative and unbiased assessment of synaptic changes in various biological contexts.

Main Methods:

DetectSyn employs a rapid proximity ligation assay to identify juxtaposed presynaptic and postsynaptic proteins.
The assay utilizes standard fluorescent microscopy, a widely available laboratory technique.
The method allows for the analysis of fluorescent puncta, enabling quick and unbiased data interpretation.

Main Results:

DetectSyn successfully identifies changes in synapse formation or elimination.
The technique is applicable to both in vitro cultured neurons and fixed tissue slices.
It allows for the analysis of larger areas compared to electron microscopy, yielding more representative data.

Conclusions:

DetectSyn offers a rapid and accessible procedure for measuring relative changes in synapse density.
This method is suitable for studying the impact of disease states or drug activity on neuronal connections.
DetectSyn overcomes limitations of traditional techniques, providing a more efficient and representative approach to synapse analysis.