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Related Experiment Videos

Apoptosis in the developing zebrafish embryo.

L K Cole1, L S Ross

  • 1Department of Biomedical Sciences, Ohio University, Athens, Ohio 45701, USA.

Developmental Biology
|January 11, 2002
PubMed
Summary
This summary is machine-generated.

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Apoptosis, or programmed cell death, is crucial for zebrafish development. This study maps cell death patterns in zebrafish embryos, revealing transient high rates in various developing tissues and organs.

Area of Science:

  • Developmental Biology
  • Cell Biology
  • Zebrafish Model Systems

Background:

  • Apoptosis is integral to normal organ and tissue development.
  • Zebrafish (Danio rerio) are a key model for studying early development.
  • Advanced techniques now allow visualization of apoptotic cells in vivo.

Purpose of the Study:

  • To map the temporal and spatial distribution of apoptosis in zebrafish embryos.
  • To correlate cell death patterns with known developmental events.
  • To investigate apoptosis in both neural and non-neural structures.

Main Methods:

  • Utilized in situ terminal deoxynucleotidyl transferase (TdT)-mediated dUTP nick-end labeling (TUNEL) assay.
  • Analyzed zebrafish embryos from 12 to 96 hours postfertilization.

Related Experiment Videos

  • Quantified labeled apoptotic cells to determine rates of cell death.

    • Main Results:

    • Demonstrated transient, high rates of apoptosis in specific developing structures.
    • Correlated peaks of cell death with established developmental changes.
    • Detailed the distribution of apoptosis in the nervous system, sensory organs, and other tissues.

    Conclusions:

    • Apoptosis plays a significant, transient role in diverse zebrafish embryonic structures.
    • The TUNEL assay effectively visualizes apoptotic cell distribution during development.
    • This study provides a comprehensive map of cell death during early zebrafish embryogenesis.