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Updated: Oct 20, 2025

Volumetric Imaging and Analysis of Primary Cilia in Musculoskeletal Tissue using the ARL13B-CENTRIN-2 Mouse Model
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Volumetric Imaging and Analysis of Primary Cilia in Musculoskeletal Tissue using the ARL13B-CENTRIN-2 Mouse Model

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Primary cilia in hard tissue development and diseases.

Sijin Li1, Han Zhang2, Yao Sun3

  • 1Department of Orthodontics, School & Hospital of Stomatology, Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai, 200072, China.

Frontiers of Medicine
|September 13, 2021
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Summary

Primary cilia, acting as cellular antennas, are crucial for bone and teeth development. Mutations in cilia genes cause skeletal and dental diseases, highlighting their role in hard tissue health.

Keywords:
bonecilium-related bone diseasehard tissuemechanical sensingprimary ciliatooth

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Area of Science:

  • Cell Biology
  • Developmental Biology
  • Genetics

Background:

  • Primary cilia are cellular protrusions essential for organ development and homeostasis.
  • Dysfunction of primary cilia is linked to various developmental disorders.
  • Skeletal abnormalities in patients with mutations in cilia-related genes suggest their role in hard tissue development.

Purpose of the Study:

  • To review the critical roles of primary cilia in long bone development and remodeling.
  • To explore the signaling and sensory mechanisms of primary cilia in hard tissues.
  • To describe hard tissue diseases associated with cilia defects and their skeletal/dental manifestations.

Main Methods:

  • Literature review focusing on primary cilia.
  • Analysis of signaling pathways and sensory functions of cilia in bone homeostasis.
  • Examination of genetic mutations affecting cilia and their impact on skeletal and dental development.

Main Results:

  • Primary cilia act as key regulators of bone homeostasis and development through signaling and sensory mechanisms.
  • Intraflagellar transport within primary cilia influences critical signaling pathways in hard tissue development.
  • Mutations in cilia-related genes lead to significant skeletal and dental abnormalities.

Conclusions:

  • Primary cilia are integral to hard tissue development, reconstruction, and homeostasis.
  • Understanding cilia-related mechanisms offers potential therapeutic targets for hard tissue genetic diseases.
  • Further research into cilia function can aid in the intervention and treatment of skeletal and dental disorders.