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Cadherin-linked morphogen gradient actualizes robust tissue patterning.

Tohru Ishitani1

  • 1Department of Homeostatic Regulation, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka 565-0871, Japan; Center for Infectious Disease Education and Research (CiDER), Osaka University, Suita, Osaka 565-0871, Japan.

Current Opinion in Cell Biology
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This summary is machine-generated.

Cell competition involving cadherins eliminates unfit cells, correcting noisy morphogen gradients essential for reproducible tissue patterning in zebrafish embryos. This mechanism ensures developmental robustness.

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Area of Science:

  • Developmental Biology
  • Cell Biology
  • Genetics

Background:

  • Morphogen gradients are crucial for establishing tissue patterns and cell fates during embryonic development.
  • While morphogen gradient formation is well-studied, the role of cell communication in refining these gradients remains unclear.

Purpose of the Study:

  • To investigate the role of cell communication in ensuring robust morphogen gradient formation.
  • To elucidate the mechanisms by which cell competition contributes to accurate tissue patterning.

Main Methods:

  • Utilized zebrafish embryos to study morphogen gradient dynamics.
  • Investigated the function of cadherin-mediated cell interactions in regulating Wnt signaling.
  • Analyzed the process of cell competition and its impact on gradient noise.

Main Results:

  • Identified that unfit cells with aberrant Wnt signaling spontaneously arise, creating noisy morphogen gradients.
  • Demonstrated that cadherin-mediated cell competition eliminates these unfit cells.
  • Showed that this elimination process corrects gradient noise, leading to reproducible tissue patterning.

Conclusions:

  • Cadherin-mediated cell competition is a key mechanism for ensuring the robustness of morphogen gradients.
  • This process corrects developmental noise, supporting accurate tissue patterning and potentially impacting evolutionary and disease contexts.