Genetically modified immunomodulatory cell-based biomaterials in tissue regeneration and engineering

Area of Science:

• Biomaterials Science
• Immunology
• Regenerative Medicine

Background:

• Cell-based biomaterials face significant hurdles in tissue engineering due to immune rejection.
• Reducing immunogenicity is a critical research focus for advancing biomaterial applications.
• Genetically modified cell-based biomaterials offer a novel strategy to overcome immune responses.

Purpose of the Study:

• To review recent advancements in genetically modified immunomodulatory cell-based biomaterials.
• To discuss fabrication methods, gene mechanisms, and applications.
• To highlight preclinical and clinical progress and future challenges.

Main Methods:

• Review of fabrication approaches including viral transfection and novel techniques.
• Analysis of immunomodulatory mechanisms of key genes involving cell signaling and metabolism.
• Compilation of data from preclinical and clinical studies on cell and organ transplantation models.

Main Results:

• Genetically modified biomaterials effectively mitigate immune rejection.
• Demonstrated success in treating various end-stage diseases and reducing immunosuppressive therapy needs.
• Successful preclinical and clinical applications in organ transplantation, including human decedent and living patients.

Conclusions:

• Genetically modified immunomodulatory cell-based biomaterials represent a significant breakthrough in tissue engineering and regenerative medicine.
• Current challenges include ensuring biosecurity, addressing nonspecific effects, and personalizing treatments.
• Further research is needed to overcome these limitations for widespread clinical adoption.