Mechanism-Guided Nanoengineered Therapeutic Peptides for Bone Healing

Area of Science:

• Biomaterials Science
• Regenerative Medicine
• Nanotechnology

Background:

• Bone healing involves complex biological processes often disrupted in defects.
• Therapeutic peptides offer modular functions for bone repair but face delivery challenges.
• Current reviews focus on material platforms or peptide types, lacking a mechanism-guided framework.

Purpose of the Study:

• To review nanoengineering strategies for therapeutic peptides in bone regeneration.
• To adopt a mechanism-guided framework focusing on bone healing bottlenecks.
• To examine how nanoengineering overcomes limitations of conventional peptide delivery.

Main Methods:

• Review of literature on nanoengineered therapeutic peptides for bone healing.
• Framework organized around sequential bone healing stages: inflammation, vascularization, cell recruitment, mineralization, remodeling.
• Analysis of how nanoengineering translates peptide sequence into effective biological signals.

Main Results:

• Nanoengineering converts peptides into retained, clustered, responsive, and matrix-integrated signals.
• Strategies address immuno-osteogenesis, angiogenic-osteogenic coupling, mineralization guidance, and cell recruitment.
• Biomaterialization enhances nanoengineering by adding retention, geometry, responsiveness, and context matching.

Conclusions:

• Nanoengineered therapeutic peptides represent a promising preclinical platform for bone regeneration.
• This approach enables more targeted and mechanism-informed strategies for complex bone defects.
• Future directions include AI-assisted design, stage-matched delivery, and advanced translational models.