Advancing bone repair through immunoengineering: current strategies and future directions.

Area of Science:

• Regenerative Medicine
• Immunology
• Biomaterials Science

Background:

• Bone regeneration involves complex interactions between immune cells, signaling molecules, and osteoprogenitor cells.
• Inflammatory environments resulting from trauma or disease can impede osteogenesis and bone healing.
• Immunoengineering offers novel strategies to modulate the immune microenvironment for improved bone repair outcomes.

Purpose of the Study:

• To review emerging immunoengineering strategies for optimizing bone tissue regeneration.
• To highlight methods for adjusting immune responses to promote osteogenesis.
• To discuss the translational potential of immunoengineering in skeletal regenerative therapies.

Main Methods:

• Utilizing biomaterial scaffolds to direct immune cell behavior and polarization.
• Developing controlled release systems for cytokines and chemokines.
• Engineering pro-regenerative niches with balanced immune signaling.
• Exploring immune cell reprogramming and adoptive immunotherapy.

Main Results:

• Immunoengineering approaches can effectively modulate immune responses to favor osteogenesis.
• Biomaterial scaffolds and targeted delivery systems enhance the osteoinductive potential.
• Reprogramming immune cells and immunotherapy show promise in aligning immune dynamics with regeneration phases.

Conclusions:

• Immunoengineering provides a robust framework for advancing bone regeneration strategies.
• Modulating the immune microenvironment is crucial for successful osteogenesis.
• These strategies hold significant translational potential for clinical applications in skeletal tissue repair.