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Updated: Dec 21, 2025
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Light-Induced GFP Expression in Zebrafish Embryos using the Optogenetic TAEL/C120 System
Published on: August 19, 2021
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Targeted cell ablation in zebrafish using optogenetic transcriptional control
Karen Mruk1,2,3, Paulina Ciepla4,2, Patrick A Piza4,2
1Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, CA 94305, USA jameschen@stanford.edu kmruk@uwyo.edu.
Development (Cambridge, England)
|May 17, 2020
Summary
Researchers developed new optogenetic tools for precise cell ablation in zebrafish embryos. This method allows for controlled cell removal during development and regeneration, improving upon existing techniques.
Area of Science:
- Developmental Biology
- Genetics
- Optogenetics
Background:
- Cell ablation is crucial for studying embryonic development and tissue regeneration.
- Current methods rely on tissue-specific promoters, limiting spatial control.
- Optogenetics offers temporal control but often lacks specificity.
Purpose of the Study:
- To develop novel cell ablation methods with both spatial and temporal control.
- To integrate optogenetics with genetic cell ablation technologies.
- To compare the efficacy of different cell ablation systems.
Main Methods:
- Utilized the light-inducible GAVPO transactivator.
- Combined GAVPO with nitroreductase/nitrofuran and cytotoxic M2 ion channel systems.
- Applied these methods for cell ablation in zebrafish embryos.
Main Results:
- Achieved precise spatial and temporal control over cell ablation in zebrafish.
- Demonstrated the effectiveness of integrating optogenetics with genetic ablation.
- Identified differences in efficacy between the nitroreductase and M2 systems.
Conclusions:
- Developed a versatile optogenetic approach for targeted cell ablation.
- This method enhances the study of cell function in development and regeneration.
- Offers improved control over cell loss compared to traditional promoter-driven systems.
