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Fluid flow as a driver of embryonic morphogenesis.

Margo Daems1, Hanna M Peacock1, Elizabeth A V Jones2

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Development (Cambridge, England)
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Summary

Fluid flow acts as a key morphogenic force in embryonic development, influencing gene expression through mechanosensitive pathways. This study explores how fluid dynamics shape embryonic development, including cardiovascular and nervous system formation.

Keywords:
BloodCerebrospinal fluidCiliaLymphMechanosensationShear stress

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Area of Science:

  • Developmental Biology
  • Biophysics
  • Cell Biology

Background:

  • Fluid flow is a critical physical force during embryonic development.
  • Flowing fluids can establish morphogen gradients or trigger cellular responses via mechanotransduction.
  • Understanding these processes is key to comprehending embryonic morphogenesis.

Purpose of the Study:

  • To describe the generation of fluid flow in various embryonic systems.
  • To highlight key mechanosensitive signaling pathways involved in sensing and responding to fluid flow.
  • To discuss the role of fluid flow in establishing left-right asymmetry and shaping embryonic organ systems.

Main Methods:

  • Review of existing literature on fluid dynamics in embryogenesis.
  • Identification and description of mechanosensitive signaling pathways.
  • Analysis of the role of specific fluid flows (blood, lymph, cerebrospinal fluid) in development.

Main Results:

  • Fluid flow is generated through various mechanisms in developing embryos.
  • Mechanosensitive pathways like primary cilia are crucial for flow detection and signal transduction.
  • Fluid flow is essential for establishing left-right asymmetry and the development of cardiovascular and nervous systems.

Conclusions:

  • Fluid flow is a fundamental morphogenic force in embryogenesis.
  • Mechanotransduction pathways enable cells to respond to physical cues from fluid flow.
  • Targeted study of fluid flow dynamics offers insights into congenital abnormalities and developmental processes.