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The primary cilium gene CPLANE1 is required for peripheral nervous system development.

Elkhan Yusifov1, Martina Schaettin1, Alexandre Dumoulin2

  • 1Department of Molecular Life Sciences and Neuroscience Center Zurich, University of Zurich, Switzerland; University Research Priority Program 'Adaptive Brain Circuits in Development and Learning' (URPP AdaBD), University of Zurich, Switzerland.

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|December 18, 2024
PubMed
Summary

Ciliopathies, neurodevelopmental disorders affecting primary cilia, impact peripheral nervous system development. Loss of Cplane1 function in chicken embryos disrupts dorsal root ganglia, offering insights into somatosensory alterations in patients.

Keywords:
Ciliopathy geneDorsal root gangliaIFT88Neural crest migration

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Area of Science:

  • Developmental Neuroscience
  • Cell Biology
  • Genetics

Background:

  • Ciliopathies are neurodevelopmental disorders stemming from primary cilium dysfunction.
  • Primary cilia act as crucial signaling hubs in cell communication during development.
  • While central nervous system development in ciliopathies is studied, the peripheral nervous system remains less explored.

Purpose of the Study:

  • To investigate the role of the ciliopathy gene Cplane1 in peripheral nervous system development.
  • To understand how Cplane1 dysfunction affects neural structures beyond the central nervous system.

Main Methods:

  • Utilized chicken embryos to study the effects of Cplane1 gene function loss.
  • Observed and analyzed the development of peripheral nervous system structures, specifically dorsal root ganglia.

Main Results:

  • Loss of Cplane1 function in chicken embryos led to significant defects in dorsal root ganglia.
  • Affected dorsal root ganglia exhibited abnormal size and failed symmetrical localization along the spinal cord.
  • These findings correlate with observed neural crest cell migration defects in other ciliopathy models.

Conclusions:

  • The ciliopathy gene Cplane1 is essential for proper peripheral nervous system development.
  • Cplane1 dysfunction contributes to dorsal root ganglia abnormalities, potentially explaining somatosensory deficits in ciliopathy patients.
  • This study highlights the importance of primary cilia in peripheral nervous system formation and function.