High-resolution Confocal Imaging of the Blood-brain Barrier: Imaging, 3D Reconstruction, and Quantification of Transcytosis
November 16th, 2017
Here we present a microscopy-based protocol for high-resolution imaging and a three-dimensional reconstruction of the mouse neurovascular unit and blood-brain barrier using brain free-floating sections. This method allows for the visualization, analysis, and quantification of intracellular organelles at the BBB.
The overall goal of this method is to provide a microscopy-based protocol for high-resolution imaging and 3-dimensional reconstruction of the mouse blood-brain barrier.It combines immunofluorescence of free-floating sections with confocal microscopy to analyze subcellular organelles within the brain endothelial cells.This method add learns the preparation of brain free-floating sections, immunofluorescence staining, image acquisition and analysis parameters for high-resolution microscopy of the blood-brain barrier.The main advantage of the technique is that it allows for the quantification of subcellular organelles within cells of the neurovascular unit.Demonstrating the procedure will be Roberto Villase
Overview
This study presents a microscopy-based protocol for high-resolution imaging and the 3D reconstruction of the mouse neurovascular unit and blood-brain barrier (BBB). Using brain free-floating sections, the method allows for visualization, analysis, and quantification of intracellular organelles at the BBB.
Key Study Components
Area of Science
- Neuroscience
- Microscopy techniques
- Neurovascular unit
Background
- The blood-brain barrier is crucial for maintaining brain homeostasis.
- Understanding its structure and function can provide insights into neurological diseases.
- High-resolution imaging techniques enable detailed observation of the BBB.
- Previous methods may not allow for comprehensive analysis of subcellular structures.
Purpose of Study
- To develop a protocol for imaging the mouse BBB using free-floating brain sections.
- To enable quantification of subcellular organelles within brain endothelial cells.
- To improve understanding of the neurovascular unit's anatomy and functionality.
Methods Used
- This study utilizes a microscopy-based imaging platform combined with immunofluorescence.
- The key biological model is the mouse brain, focusing on the neurovascular unit.
- Key steps include the preparation of brain free-floating sections and confocal microscopy imaging.
- The protocol details image acquisition and analysis for enhanced microscopy performance.
- Quantification of organelles helps elucidate cellular processes within the BBB.
Main Results
- The method successfully facilitates 3D reconstruction of the BBB's architecture.
- Quantitative analysis reveals insights into the organization of intracellular organelles.
- Results enhance understanding of endothelial cell characteristics within the neurovascular unit.
- This technique may further support investigations into defects in BBB integrity.
Conclusions
- This study demonstrates a robust methodology for high-resolution imaging of the mouse BBB.
- The process enables detailed analyses that can inform research on neurological conditions.
- Insights gained may contribute to understanding neuronal mechanisms and plasticity.
Frequently Asked Questions
Chapters in this video
0:05
Title
0:53
Generation of Brain Free-floating Sections
2:19
Cell or Organelle Labeling by Immunofluorescence Staining
4:27
High-resolution Confocal Imaging of the Blood-brain Barrier
6:21
Image Processing and 3D Reconstruction of the Neurovascular Unit
9:04
Results: Three-dimensional Rendering of Capillaries and Intracellular Vesicles at the Blood-brain Barrier
9:57
Conclusion
