Mitochondrial Transplant Could Revolutionize Organ Preservation

In a groundbreaking stride for transplant medicine, researchers are exploring mitochondrial transplantation as a way to actively repair donor organs during machine perfusion, rather than merely preserving them. The strategy involves delivering healthy, energy-producing mitochondria to organs like hearts, lungs, and kidneys while they are kept viable outside the body. Preclinical studies have shown remarkable results, including improved contractility in pig hearts, reduced infarct size by over 75%, enhanced oxygenation in lungs, and stimulated metabolic activity in kidneys. The approach aims to restore cellular metabolism, limit oxidative injury, and recover function before transplantation, potentially rescuing organs that would otherwise be discarded.

The review, published in Hepatobiliary & Pancreatic Diseases International (DOI: 10.1016/j.hbpd.2025.10.003), brings together evidence from prestigious institutions including Wake Forest University, Brown University, and Grenoble Alpes University. The researchers emphasize that while the benefits are consistent across organs, the field must establish standardized protocols for mitochondrial quality, source, dose, and safety. They envision integrating this therapy into existing perfusion platforms, turning preservation time into a controlled window for active recovery. If validated in clinical trials, this could significantly expand the donor pool and improve outcomes for patients awaiting transplants.