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Author Spotlight: In Vivo Whole-Brain Imaging of Zebrafish Larvae Using Three-Dimensional Fluorescence Microscopy
Published on: April 28, 2023
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Brain Imaging and Registration in Larval Zebrafish.
Ashwin A Bhandiwad1, Tripti Gupta1, Abhignya Subedi1
1Division of Developmental Biology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, MD, USA.
Methods in Molecular Biology (Clifton, N.J.)
|September 5, 2023
Summary
This study presents methods for larval zebrafish brain imaging and registration. These techniques allow for detailed comparisons of gene expression and neuroanatomy across multiple samples.
Area of Science:
- Neuroscience
- Developmental Biology
- Bioimaging
Background:
- Comparative analysis of neuroanatomy and gene expression in larval zebrafish requires standardized brain imaging and registration techniques.
- Existing methods may not fully capture the complexity of larval zebrafish brain structures for high-resolution analysis.
Purpose of the Study:
- To describe optimized methods for staining and mounting larval zebrafish brains for whole-brain fluorescence imaging.
- To provide a standardized pipeline for aligning larval zebrafish brain images to a common reference atlas using advanced registration software.
Main Methods:
- Larval zebrafish were stained and mounted using specific protocols to enhance tissue transparency and signal integrity for fluorescence microscopy.
- Whole-brain fluorescence imaging was performed on prepared specimens.
- Nonlinear registration algorithms from the ANTs (Advanced Normalization Tools) software package were employed to align individual brain images to a reference zebrafish brain atlas.
Main Results:
- The described staining and mounting protocols facilitate high-quality, whole-brain imaging of larval zebrafish.
- The ANTs-based registration pipeline successfully aligns diverse larval zebrafish brain images to a common reference space.
- This standardized approach enables quantitative comparisons of neuroanatomical features and gene expression patterns.
Conclusions:
- The developed methods provide a robust framework for comparative neuroimaging studies in larval zebrafish.
- Accurate registration to a reference brain atlas is crucial for large-scale analyses of brain development and function.
- These techniques will advance research in zebrafish neurobiology, developmental neuroscience, and systems neuroscience.
