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LarvaSPA, A Method for Mounting Drosophila Larva for Long-Term Time-Lapse Imaging
Published on: February 27, 2020
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LarvaSPA, A Method for Mounting Drosophila Larva for Long-Term Time-Lapse Imaging
1Weill Institute for Cell and Molecular Biology and Department of Molecular Biology and Genetics, Cornell University.
Journal of Visualized Experiments : Jove
|March 17, 2020
Summary
Researchers developed LarvaSPA, a novel method for long-term live imaging of Drosophila larvae. This technique enables over 10 hours of high-resolution imaging, overcoming previous limitations in immobilizing larvae for extended periods.
Area of Science:
- Cell Biology
- Developmental Biology
- Neuroscience
Background:
- Live imaging is crucial for understanding cellular processes.
- Drosophila larvae offer transparency for in vivo imaging.
- Previous methods limited continuous imaging duration due to immobilization challenges.
Purpose of the Study:
- To develop a robust method for long-term, high-resolution live imaging of intact Drosophila larvae.
- To overcome the limitations of immobilizing Drosophila larvae for extended imaging periods.
- To enable the study of dynamic cellular processes in vivo over extended durations.
Main Methods:
- Introduced LarvaSPA, a larval mounting technique.
- Larvae are partially attached to coverslips using UV-reactive glue.
- Polydimethylsiloxane (PDMS) blocks are used to further restrain larval movement.
Main Results:
- LarvaSPA allows continuous live imaging for over 10 hours.
- The method provides high temporal and spatial resolution.
- Compatible with Drosophila larvae from second to wandering third instar stages.
Conclusions:
- LarvaSPA significantly advances the capability for long-term in vivo live imaging in Drosophila.
- This method facilitates detailed studies of dynamic cellular processes, such as neuronal dendrite development and degeneration.
- Applicable to various cellular processes occurring near the larval body wall.
