Pig Kidneys Frozen for a Year Revived in Cryopreservation Breakthrough

In a milestone for cryopreservation, researchers have successfully thawed pig kidneys that were frozen for a year and restored their function. The achievement, reported in October 2026, brings the prospect of human organ banking closer to reality. The team used a technique called vitrification, which rapidly cools organs to extremely low temperatures without forming ice crystals, combined with a new nanowarming method to uniformly reheat them. After thawing, the kidneys showed normal cellular structure and resumed metabolic activity. This advance could one day allow human organs to be stored safely for extended periods, eliminating the logistical race against time that currently limits transplantation. By banking organs, doctors could better match donors with recipients and reduce waitlist deaths. The research, published in a peer-reviewed journal, represents a significant step toward making organ banking a clinical reality. While challenges remain, including scaling the technique for larger human organs and ensuring long-term viability, the successful revival of pig kidneys after a year of frozen storage offers a promising proof of concept.

via MIT Tech Review AI