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Deciphering the Relevance of Bone ECM Signaling
Natividad Alcorta-Sevillano1, Iratxe Macías1, Arantza Infante1
1Stem Cells and Cell Therapy Laboratory, Biocruces Bizkaia Health Research Institute, Cruces University Hospital, Plaza de Cruces S/N, Barakaldo, 48903 Bizkaia, Spain.
Cells
|December 10, 2020
Summary
Bone fragility involves more than bone mineral density. Extracellular matrix composition and microarchitecture significantly impact bone strength and are crucial in pathological conditions.
Area of Science:
- Biomaterials Science
- Orthopedics
- Cell Biology
Background:
- Bone mineral density is a key predictor of fracture risk.
- Bone fragility is influenced by extracellular matrix (ECM) composition and microarchitecture.
- The bone ECM comprises inorganic (apatite, trace elements) and organic (collagen type I, noncollagenous proteins) components.
Purpose of the Study:
- To summarize essential extracellular matrix factors contributing to bone strength.
- To discuss alterations in ECM parameters in bone fragility pathologies.
Main Methods:
- Literature review of bone ECM composition and function.
- Analysis of ECM's role in bone regeneration and pathological conditions.
Main Results:
- Bone ECM composition and structure directly influence bone quality.
- ECM proteins play vital structural and signaling roles through interactions with various partners.
- Altered ECM parameters are linked to pathological bone fragility.
Conclusions:
- Extracellular matrix components are critical determinants of bone strength beyond mineral density.
- Understanding ECM's role is essential for addressing bone fragility and developing therapeutic strategies.
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