A groundbreaking approach to kidney transplantation has successfully achieved immune tolerance without the toxic side effects of traditional conditioning regimens. Researchers demonstrated that combining donor bone marrow with recipient regulatory T cells can establish stable chimerism—a state in which the transplanted organ is accepted by the recipient’s immune system—without requiring myeloablative irradiation or chemotherapy.
Published in Science Translational Medicine in June 2026, this novel protocol represents a significant shift in transplant safety and accessibility. By eliminating high-dose radiation exposure, the approach substantially reduces conditioning-related toxicity, potentially allowing patients who previously could not tolerate standard regimens to become eligible for kidney transplantation. Early evidence suggests this method may improve both short-term recovery and long-term quality of life for organ recipients.
Read the full article on GMJ Newsroom.
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