In the realm of organ transplantation, time is a critical factor. Once an organ is harvested from a donor, its viability begins to diminish almost immediately, necessitating swift transfer to a recipient. Traditionally, organs have been preserved on ice at approximately 4°C (39°F), but extended storage is often not feasible, leading to a high rate of organ discard due to deterioration. Recent groundbreaking research led by Matthew Powell-Palm and his team at Texas A&M University presents a promising alternative: a new device that allows for the supercooling of kidneys to -4°C (25°F) without ice formation, significantly extending the preservation period.
In a series of experiments involving pig kidneys, Powell-Palm’s innovative device has demonstrated the ability to maintain organ viability for days. After being supercooled, the kidneys were successfully transplanted back into the original donor pigs, where they exhibited better recovery rates compared to those stored under traditional methods. This advancement could provide a crucial solution to the ongoing organ shortage crisis; currently, over 100,000 individuals in the U.S. are awaiting kidney transplants, with many dying each day due to a lack of available organs. The research highlights the potential to not only reduce the number of discarded organs but also to improve outcomes for recipients.
Powell-Palm’s approach involves submerging the kidneys in a preservation solution within a hermetically sealed chamber, monitored for temperature and ice formation. Previous attempts to cryopreserve large organs faced significant challenges, but this new method circumvents the need for cryoprotectants—substances that can have adverse effects and require regulatory approval. The kidneys that were supercooled showed promising functionality shortly after transplantation, with rapid urine production indicating successful recovery. Impressively, the kidneys maintained healthy growth over the following days, showcasing not just immediate viability but long-term health as well. This pioneering research, presented at the American Transplant Congress, underscores a significant leap forward in organ preservation technology, potentially transforming the landscape of transplantation.
Source: Supercooled kidneys have been transplanted into pigs in a “landmark achievement” via MIT Technology Review