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Pig Kidney Success: Man Lives 9 Months Without Dialysis
21 Sep
Summary
- Genetically engineered pig kidney sustained a patient for 271 days.
- This breakthrough allows patients to avoid dialysis while awaiting transplant.
- The successful xenotransplantation moves animal organs closer to clinical use.
A groundbreaking xenotransplantation case has demonstrated the potential of genetically engineered animal organs. A 66-year-old US resident, Tim Andrews, received a modified pig kidney on January 25, 2025, and lived dialysis-free for a record 271 days. This development, announced in a Lancet research paper, marks a significant step toward using animal organs to bridge the gap in organ availability.
Andrews' doctors reported that the pig kidney functioned immediately, and despite an early immune T-cell attack on day 14, rejection was controlled without pig pathogen transmission. While a later bacterial infection led to thrombotic microangiopathy, damaging the pig kidney, the experience proved beneficial. Crucially, exposure to the pig kidney did not sensitize his immune system against a future human donor organ, which he subsequently received.
Experts hail this as a landmark development, with the pig organ functioning longer in a human than ever before. For India, where the demand for kidneys far exceeds the supply, xenokidneys could offer a temporary solution while awaiting a human donor. However, challenges like infection, regulation, ethics, and affordability need to be addressed before widespread adoption.
