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Synchronized mesenchymal cell polarization and differentiation shape the formation of the murine trachea and esophagus

Author

Listed:
  • Keishi Kishimoto

    (RIKEN Center for Developmental Biology
    Center for Biosystems Dynamics Research)

  • Masaru Tamura

    (RIKEN BioResource Center)

  • Michiru Nishita

    (Kobe University)

  • Yasuhiro Minami

    (Kobe University)

  • Akira Yamaoka

    (RIKEN Center for Developmental Biology
    Center for Biosystems Dynamics Research)

  • Takaya Abe

    (Center for Biosystems Dynamics Research
    RIKEN Center for Life Science Technologies and Center for Biosystems Dynamics Research
    RIKEN Center for Life Science Technologies and Center for Biosystems Dynamics Research)

  • Mayo Shigeta

    (Center for Biosystems Dynamics Research
    RIKEN Center for Life Science Technologies and Center for Biosystems Dynamics Research)

  • Mitsuru Morimoto

    (RIKEN Center for Developmental Biology
    Center for Biosystems Dynamics Research)

Abstract

Tube morphogenesis is essential for internal-organ development, yet the mechanisms regulating tube shape remain unknown. Here, we show that different mechanisms regulate the length and diameter of the murine trachea. First, we found that trachea development progresses via sequential elongation and expansion processes. This starts with a synchronized radial polarization of smooth muscle (SM) progenitor cells with inward Golgi-apparatus displacement regulates tube elongation, controlled by mesenchymal Wnt5a-Ror2 signaling. This radial polarization directs SM progenitor cell migration toward the epithelium, and the resulting subepithelial morphogenesis supports tube elongation to the anteroposterior axis. This radial polarization also regulates esophageal elongation. Subsequently, cartilage development helps expand the tube diameter, which drives epithelial-cell reshaping to determine the optimal lumen shape for efficient respiration. These findings suggest a strategy in which straight-organ tubulogenesis is driven by subepithelial cell polarization and ring cartilage development.

Suggested Citation

  • Keishi Kishimoto & Masaru Tamura & Michiru Nishita & Yasuhiro Minami & Akira Yamaoka & Takaya Abe & Mayo Shigeta & Mitsuru Morimoto, 2018. "Synchronized mesenchymal cell polarization and differentiation shape the formation of the murine trachea and esophagus," Nature Communications, Nature, vol. 9(1), pages 1-13, December.
    • Handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-05189-2
    DOI: 10.1038/s41467-018-05189-2
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