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Related Experiment Videos

Cell polarity from cell division.

Elisabeth Knust1, Wieland B Huttner

  • 1Max Planck Institute of Molecular Cell Biology and Genetics, Pfotenhauerstrasse 108, 01307 Dresden, Germany.

Developmental Cell
|May 10, 2007
PubMed
Summary
This summary is machine-generated.

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Epithelial cells achieve opposite polarity through a novel "mirror-symmetric" cell division. This process involves apical components accumulating at the cleavage furrow during M-phase.

Area of Science:

  • Cell biology
  • Developmental biology
  • Epithelial cell biology

Background:

  • Apical-basal polarity is crucial for epithelial cell function and division.
  • Polarity is typically established during interphase before cell division.
  • Asymmetric and symmetric cell divisions rely on established polarity.

Purpose of the Study:

  • To investigate a novel mode of cell division termed "mirror-symmetric" division.
  • To understand the mechanism of establishing opposite apical-basal polarity in daughter cells.
  • To challenge the established view of polarity establishment during interphase.

Main Methods:

  • Live imaging of cell division in epithelial cells.
  • Tracking of apical cell constituents during M-phase.

Related Experiment Videos

  • Analysis of daughter cell polarity post-division.

    • Main Results:

    • A novel "mirror-symmetric" cell division was identified.
    • Apical cell constituents actively accumulate at the cleavage furrow during M-phase.
    • Daughter epithelial cells exhibited opposite apical-basal polarity.

    Conclusions:

    • Mirror-symmetric division provides a mechanism for generating daughter cells with reversed polarity.
    • Polarity can be established or significantly modified during M-phase, not just interphase.
    • This finding offers new insights into epithelial development and tissue organization.