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Related Experiment Video

Updated: Jan 13, 2026

Volumetric Imaging and Analysis of Primary Cilia in Musculoskeletal Tissue using the ARL13B-CENTRIN-2 Mouse Model
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In vitro approaches to study centriole and cilium function in early mouse embryogenesis.

Isabella Voelkl1,2, Tamara Civetta1, Mirijam Egg1

  • 1Max Perutz Labs, University of Vienna, Vienna BioCenter (VBC), Vienna, Austria.

Life Science Alliance
|October 29, 2025
PubMed
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Centrioles and cilia are essential for mammalian development. This study used 3D models to show their roles, finding centrioles crucial for gastruloid development, while cilia had minor impacts.

Area of Science:

  • Developmental Biology
  • Cell Biology
  • Biophysics

Background:

  • Centrioles and primary cilia are vital for early mammalian development.
  • Their precise roles between formation and developmental arrest are unclear.
  • 3D in vitro models offer insights into early development.

Purpose of the Study:

  • To investigate the function of centrioles and cilia in early mammalian development using 3D in vitro models.
  • To explore the impact of centriole and cilium absence on specific developmental processes.
  • To assess the influence of the 3D environment on centriole and cilium formation.

Main Methods:

  • Utilized 3D in vitro mouse rosettes and gastruloid models.
  • Generated centriole- and cilium-deficient cell lines.

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  • Investigated developmental processes like polarization, lumenogenesis, and gastruloid elongation.
  • Analyzed a mutant affecting centriolar distal appendages.

    • Main Results:

    • Centrioles and cilia were dispensable in 3D mouse rosettes during implantation-like events.
    • Centriole loss in gastruloids caused early disassembly, rescueable by p53 deletion.
    • Cilia-deficient cells formed elongated, polarized gastruloids with minimal 96h differences.
    • A distal appendage mutant lacked cilia in 2D but formed them in 3D models.

    Conclusions:

    • The requirement for centrioles and cilia varies depending on the developmental context and model system.
    • 3D environments are crucial for recapitulating and studying complex developmental processes.
    • Centriole function is critical for gastruloid integrity, while cilia play a less prominent role in this specific model.