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Updated: Jul 10, 2025
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Three-dimensional Quantification of Dendritic Spines from Pyramidal Neurons Derived from Human Induced Pluripotent Stem Cells
Published on: October 10, 2015
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Three-dimensional visualization and analysis of dendritic spines in human brain tissue
Haitao Sun1,2, Hei Ming Lai3,4, Wutian Wu5,6
1Clinical Biobank Center, Microbiome Medicine Center, Department of Laboratory Medicine, Guangdong Provincial Clinical Research Center for Laboratory Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, China.
Biotechniques
|November 23, 2023
Summary
Researchers developed a new method to visualize neuron structure in human brain tissue. This technique allows for high-resolution 3D imaging of neuronal morphology, aiding neuroanatomy and pathology studies.
Area of Science:
- Neuroscience
- Biotechnology
- Medical Imaging
Background:
- Understanding neuronal morphology is crucial for studying brain function and diseases.
- Existing techniques for visualizing neuronal structure in human tissues have limitations in resolution, depth, or cost.
Purpose of the Study:
- To develop a simple, powerful, and cost-efficient technique for high-resolution 3D visualization of neuronal morphology in human brain tissues.
Main Methods:
- Ballistic injection of DiI-coated tungsten particles for random neuronal labeling.
- Tissue clearing using OPTIClear for enhanced light penetration.
- High-resolution imaging and quantitative analysis of dendritic trees and spines.
Main Results:
- Successful tracing of branched dendritic trees and spines in 3D.
- High-resolution imaging revealed dendrites up to 300 μm and spine necks down to 200 nm.
- No decrease in spine density with imaging depth, confirming excellent clearing and tracing.
- Segmentation and modeling enabled detailed morphological characterization of dendritic spines.
Conclusions:
- The developed technique provides assumption-free, high-resolution, and cost-efficient visualization of neuronal morphology in human tissues.
- This method can be combined with immunohistochemistry and electron microscopy for advanced neuroanatomy and pathology research.
