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Related Experiment Video

Updated: Feb 28, 2026

Skeletal Phenotype Analysis of a Conditional Stat3 Deletion Mouse Model
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Unique mineralization pattern revealed in TBCK syndrome mouse model.

Kaitlin A Katsura, Yuchen Jiang, Marius Didziokas

    Biorxiv : the Preprint Server for Biology
    |February 27, 2026
    PubMed
    Summary

    TBCK syndrome impairs mineralized tissue development. Multimodal analysis reveals early enamel and dentin defects in Tbck knockout mice, aiding rare genetic disorder diagnosis.

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    Area of Science:

    • Biomineralization
    • Genetics
    • Rare Diseases

    Background:

    • TBCK syndrome causes severe leukoencephalopathy affecting craniofacial development.
    • TBCK protein is vital for cellular processes impacting mineralized tissue formation.
    • Conventional imaging may miss subtle defects in mineral quality.

    Purpose of the Study:

    • To investigate enamel, dentin, and alveolar bone mineralization in a Tbck knockout mouse model.
    • To apply a multimodal imaging framework to a genetic condition for the first time.
    • To identify early mineralization defects in TBCK deficiency.

    Main Methods:

    • Micro-computed tomography (microCT)
    • Histology
    • Nanoindentation

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  • Energy-dispersive spectroscopy
  • Raman spectroscopy

    • Main Results:

    • Tbck loss caused tissue- and stage-dependent mineral composition changes, undetected by microCT alone.
    • Early differences in enamel and dentin element composition (Ca, P, C, Mg, Fe) were observed.
    • Mechanical properties were affected later in the maturation stage.

    Conclusions:

    • Tbck deficiency results in a unique mineralization signature.
    • Multimodal hard-tissue analysis is a sensitive method for detecting early craniofacial phenotypes in rare genetic disorders.
    • This framework advances understanding of TBCK syndrome's impact on craniofacial development.