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Methods and protocols for studying cell death in Drosophila.

Donna Denton1, Kathryn Mills, Sharad Kumar

  • 1Hanson Institute, Institute of Medical and Veterinary Science, Adelaide, Australia.

Methods in Enzymology
|July 8, 2008
PubMed
Summary

This study details methods for detecting programmed cell death (apoptosis) in Drosophila, a key model organism. These protocols aid in understanding cell death regulation and genetic interactions within the apoptotic pathway.

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Area of Science:

  • Developmental Biology
  • Cell Biology
  • Genetics

Background:

  • Drosophila melanogaster serves as a powerful model for studying programmed cell death (apoptosis) due to its genetic tractability and in vivo analyses.
  • The core molecular machinery for apoptosis is evolutionarily conserved, with caspases playing a central regulatory role.
  • Previous research has established reproducible patterns of apoptosis and responses to genotoxic stress during Drosophila development.

Purpose of the Study:

  • To describe established protocols for detecting apoptotic cells in Drosophila during development and in cell lines.
  • To highlight methods for assessing caspase activation and cleavage, critical events in apoptosis induction.
  • To emphasize the utility of Drosophila for investigating genetic interactions within the cell death pathway.

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Main Methods:

  • Detection of apoptotic cells using TUNEL assay, acridine orange staining, and immunostaining for apoptotic pathway components.
  • Measurement of caspase activation via fluorogenic peptide substrates.
  • Assessment of caspase cleavage products using immunoblotting techniques.
  • Analysis of genetic interactions involving cell death pathway components.

Main Results:

  • The described methods allow for robust detection and analysis of apoptosis in Drosophila.
  • Caspase activation and cleavage can be quantitatively measured using biochemical assays.
  • Genetic manipulation in Drosophila enables detailed study of cell death pathway component interactions.

Conclusions:

  • Drosophila provides a versatile platform for dissecting the molecular mechanisms of programmed cell death.
  • The outlined protocols facilitate comprehensive apoptosis research in this model organism.
  • Understanding cell death pathways in Drosophila offers insights applicable to broader biological systems.