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Artificial Intelligence Approaches to Assessing Primary Cilia
Published on: May 1, 2021
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Current topics of functional links between primary cilia and cell cycle
Ichiro Izawa1, Hidemasa Goto2, Kousuke Kasahara3
1Division of Biochemistry, Aichi Cancer Center Research Institute, 1-1 Kanokoden, Chikusa-ku, Nagoya, 464-8681 Japan.
Cilia
|January 1, 2016
Summary
Cilia formation and cell division are tightly linked. Key proteins regulate cilia assembly and disassembly, ensuring proper cell cycle progression and tissue health. Understanding these connections aids in treating cilia-related diseases.
Area of Science:
- Cell Biology
- Molecular Biology
- Developmental Biology
Background:
- Primary cilia are crucial microtubule-based sensory organelles involved in development and tissue homeostasis.
- The interplay between ciliogenesis (cilium formation) and the cell cycle is an area of increasing research interest.
Purpose of the Study:
- To review recent advances in understanding the molecular mechanisms linking ciliogenesis and cell cycle control.
- To highlight how individual steps of ciliogenesis are regulated by and influence cell cycle progression.
Main Methods:
- Review of recent molecular and cell biology studies.
- Analysis of regulatory pathways involving protein degradation, kinase activity, and microtubule dynamics.
Main Results:
- Distal appendage proteins are essential for initiating ciliogenesis.
- Negative regulators of ciliogenesis (CP110, Ofd1, trichoplein) are removed via distinct mechanisms (kinase-dependent, autophagy, ubiquitin-proteasome system) at specific cell cycle checkpoints.
- Ciliary length is regulated by protein degradation (Nde1) and intraflagellar signaling, while cilia disassembly involves multiple pathways (Aurora A-HDAC6, Nek2-Kif24, Plk1-Kif2A).
- Primary cilia presence acts as a structural checkpoint for cell cycle re-entry.
Conclusions:
- Ciliogenesis and the cell cycle are intricately interconnected processes.
- Elucidating these links is vital for understanding cilia-related diseases, including cancer.
- These mechanisms offer potential therapeutic targets for intervention.
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