Pushing the boundaries of organs before it's too late: pre-emptive regeneration

Area of Science:

• Regenerative Medicine
• Transplantation Immunology
• Biotechnology

Background:

• Solid organ transplantation is frequently complicated by accelerated aging and progressive fibrosis, leading to organ dysfunction.
• Developing strategies to mitigate or reverse post-transplant damage is critical for long-term graft survival and preventing organ failure.

Purpose of the Study:

• To review and discuss emerging strategies for the regeneration and rejuvenation of transplanted solid organs.
• To highlight innovative therapeutic approaches aimed at combating age-related damage and fibrosis in transplanted organs.

Main Methods:

• Mesenchymal stromal cell (MSC) therapy, focusing on their antifibrotic effects and potential for mitochondrial transfer to damaged cells.
• Bioengineering approaches involving decellularization of native organs followed by recellularization with functional cells.
• Chimeric antigen receptor T-cell (CAR-T) based therapies investigated for their capacity to eliminate senescent cells and ameliorate fibrosis.

Main Results:

• Mesenchymal stromal cells demonstrate antifibrotic properties and can enhance organ regeneration through mitochondrial biogenesis and transfer.
• Bioengineered organs offer a potential alternative by replacing damaged tissue with functional, lab-grown constructs.
• Preclinical studies indicate CAR-T cells can effectively clear senescent cells, thereby reversing fibrosis in transplanted organs.

Conclusions:

• Cutting-edge strategies including cell therapy, bioengineered organs, and CAR-T cell technology hold significant promise for organ regeneration.
• These regenerative approaches may lead to improved outcomes in solid organ transplantation by addressing aging and fibrosis.
• The development of these therapies could bring the concept of pre-emptive organ regeneration closer to clinical reality.