Bone organoids and mitochondrial reprogramming

Area of Science:

• Biomaterials Science
• Cell Biology
• Tissue Engineering

Background:

• Bone organoids are advanced models for studying bone development and disease.
• Current limitations include poor long-term viability, tissue organization, and metabolic homeostasis.
• Mitochondria play a crucial role in bone cell metabolism, signaling, and development.

Purpose of the Study:

• To review the mechanisms of mitochondria in osteogenic differentiation and bone quality.
• To highlight strategies for enhancing bone organoid maturation by targeting mitochondria.
• To propose a novel strategy for next-generation bone organoid engineering focused on mitochondrial modulation.

Main Methods:

• Systematic review of literature on mitochondria in bone organoids.
• Analysis of mechanisms linking mitochondrial function to osteogenesis.
• Evaluation of physical cues, electromagnetic stimulation, and biomaterials impacting mitochondrial activity.

Main Results:

• Mitochondrial metabolic reprogramming is central to bone organoid maturation.
• The switch from glycolysis to oxidative phosphorylation is critical for bone matrix synthesis.
• Mechanical cues, electromagnetic stimulation, and biomaterials can drive maturation by targeting mitochondria.

Conclusions:

• Modulating the mitochondrial metabolic microenvironment is essential for high-fidelity bone organoids.
• Integrating mitochondrial requirements across developmental stages ensures organoid maturity.
• This approach provides a framework for developing clinically translatable in vitro bone models.