Bone Regeneration and Angiogenesis Engineering

Bone regeneration and angiogenesis engineering address the intertwined processes of new bone formation and blood‐vessel growth that are essential for the repair of critical‐sized defects, non-unions and compromised skeletal conditions. In natural healing, mesenchymal progenitors differentiate into osteoblasts to deposit mineralised matrix, while adjacent endothelial cells form capillaries that deliver oxygen, nutrients and regulatory signals. Engineering strategies seek to recapitulate this coupling by combining biomaterials, bioactive molecules and cell therapies. Porous scaffolds mimic the extracellular matrix and enable cell infiltration, while controlled release of growth factors such as vascular endothelial growth factor enhances local angiogenesis. Hypoxia-responsive elements, mechanical stimulation and three-dimensional printing further refine architectural and biochemical cues. Advances in understanding signalling pathways—particularly those governed by hypoxia-inducible factors—have permitted targeted modulation of cell fate and vessel formation. Together, these approaches promise off-the-shelf constructs for large-scale bone defects, improved osseointegration of implants and accelerated healing in osteoporotic or irradiated bone.

Research from Nature Portfolio

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Bone Regeneration and Angiogenesis Engineering publication trend

The graph below shows the total number of articles in bone regeneration and angiogenesis engineering across all publications each year (not limited to Nature Index journals).

Technical terms

Angiogenesis: The physiological process by which new blood vessels form from pre-existing vasculature, critical for tissue repair and nutrient delivery.

Osteogenesis: The generation of new bone tissue through the differentiation of progenitor cells into osteoblasts and subsequent mineral matrix deposition.

Hypoxia-inducible factor 1-alpha (HIF-1α): A transcription factor stabilised under low-oxygen conditions that upregulates genes involved in angiogenesis, metabolism and cell survival.

Mesenchymal stem cells (MSCs): Multipotent stromal cells capable of differentiating into osteoblasts, chondrocytes and other lineages, widely used in regenerative therapies.

Type H vessels: A specialised capillary subtype characterised by high expression of endothelial markers associated with coupling of angiogenesis and osteogenesis.

References

1. 3D Biomimetic Calcified Cartilaginous Callus that Induces Type H Vessels Formation and Osteoclastogenesis. Advanced Science (2023).
2. HIF-1α increases the osteogenic capacity of ADSCs by coupling angiogenesis and osteogenesis via the HIF-1α/VEGF/AKT/mTOR signaling pathway. Journal of Nanobiotechnology (2023).
3. Altered fracture repair in the absence of MMP9. Development (2003).