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Related Experiment Video

Updated: Jul 8, 2026

Live-imaging of the Drosophila Pupal Eye
09:54

Live-imaging of the Drosophila Pupal Eye

Published on: January 12, 2015

Cellular behavior in the developing Drosophila pupal retina.

David E Larson1, Zoe Liberman, Ross L Cagan

  • 1Department of Molecular Biology and Pharmacology, Washington University School of Medicine, 660 South Euclid Avenue, Campus Box 8103, Saint Louis, MO 63110, USA.

Mechanisms of Development
|January 2, 2008
PubMed
Summary

Proper cell positioning in epithelia is vital for function. This study reveals P120-Catenin stabilizes adherens junctions, ensuring correct cell placement during Drosophila eye development.

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Area of Science:

  • Developmental biology
  • Cell biology
  • Neuroscience

Background:

  • Epithelial cell patterning is crucial for tissue function.
  • Mechanisms of cell positioning during development are not fully understood.

Purpose of the Study:

  • To investigate cellular dynamics during Drosophila retina development.
  • To identify molecular regulators of cell positioning in the developing eye.

Main Methods:

  • Developed an optimized live imaging system for the Drosophila pupal retina.
  • Analyzed cellular movements in wild-type and mutant Drosophila retinas.
  • Investigated the role of signaling pathways (Notch, Roughest) and P120-Catenin.

Main Results:

  • Characterized normal cell positioning dynamics in wild-type retinas.

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Dissection and Immunohistochemistry of Larval, Pupal and Adult Drosophila Retinas
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Dissection and Immunohistochemistry of Larval, Pupal and Adult Drosophila Retinas

Published on: November 14, 2012

Dissection of the Drosophila Pupal Retina for Immunohistochemistry, Western Analysis, and RNA Isolation
08:47

Dissection of the Drosophila Pupal Retina for Immunohistochemistry, Western Analysis, and RNA Isolation

Published on: March 15, 2019

Related Experiment Videos

Last Updated: Jul 8, 2026

Live-imaging of the Drosophila Pupal Eye
09:54

Live-imaging of the Drosophila Pupal Eye

Published on: January 12, 2015

Dissection and Immunohistochemistry of Larval, Pupal and Adult Drosophila Retinas
11:58

Dissection and Immunohistochemistry of Larval, Pupal and Adult Drosophila Retinas

Published on: November 14, 2012

Dissection of the Drosophila Pupal Retina for Immunohistochemistry, Western Analysis, and RNA Isolation
08:47

Dissection of the Drosophila Pupal Retina for Immunohistochemistry, Western Analysis, and RNA Isolation

Published on: March 15, 2019

  • Identified aberrant cell movements in Notch and Roughest signaling mutants.
  • Demonstrated a novel developmental role for P120-Catenin in retinal patterning.
  • Showed P120-Catenin stabilizes adherens junctions and E-cadherin.

    • Conclusions:

    • P120-Catenin is essential for maintaining adherens junction integrity during Drosophila eye development.
    • This study provides the first evidence of P120-Catenin's developmental role in lower metazoan epithelia.
    • Proper cell positioning relies on regulated cell adhesion and signaling pathways.