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Updated: Jun 9, 2025
Culture of Murine Embryonic Metatarsals: A Physiological Model of Endochondral Ossification
Published on: December 3, 2016
Caspase-12 affects chondrogenesis in mice
Barbora Veselá1, Jana Bzdúšková2, Alice Ramešová3
1Department of Physiology, University of Veterinary Sciences Brno, Brno, Czech Republic; Institute of Animal Physiology and Genetics, Czech Academy of Sciences, Brno, Czech Republic.
Abstract:
Caspase-12 is a molecule whose functions are still not well understood. Although its expression has been found in various tissues, specific roles have been described in only a few cases. These include the effect of caspase-12 on murine bone cell differentiation during craniofacial development. This work focused on the development of the limbs taking place through endochondral ossification, which precedes the formation of the cartilaginous growth plate. Caspase-12 was described here for the first time in growth plate chondrocytes during physiological development. Using pharmacological inhibition, caspase-12 was found to affect chondrogenesis. Limb-derived micromass cultures showed a significantly increased area of chondrogenic nodules after caspase-12 inhibition and there were changes in gene expression, the most significant of which was the reduction of Mmp9. These data point to potential new functions of caspase-12 in chondrogenesis.
Insights
Caspase-12 plays a role in limb development. Inhibiting caspase-12 in chondrocytes increased chondrogenesis and altered gene expression, suggesting new functions in cartilage formation.
Area of Science:
- Molecular Biology
- Developmental Biology
- Skeletal Biology
Background:
- Caspase-12 functions remain largely unknown, with limited roles identified in specific tissues.
- Previous studies linked caspase-12 to murine bone cell differentiation in craniofacial development.
Purpose of the Study:
- To investigate the role of caspase-12 in limb development via endochondral ossification.
- To examine the impact of caspase-12 on growth plate chondrocytes during physiological development.
Main Methods:
- Pharmacological inhibition of caspase-12 in limb-derived micromass cultures.
- Analysis of chondrogenic nodule formation and gene expression changes.
Main Results:
- Caspase-12 inhibition significantly increased the area of chondrogenic nodules.
- Gene expression analysis revealed significant changes, notably a reduction in Mmp9.
- Caspase-12 was identified in growth plate chondrocytes during development.
Conclusions:
- Caspase-12 influences chondrogenesis, the process of cartilage formation.
- These findings suggest novel functions for caspase-12 in skeletal development, particularly in the growth plate.
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