How did bone marrow transplantation change the treatment of leukemia?

Bone marrow transplantation revolutionized the treatment of leukemia by providing a way to replace diseased, blood-forming tissue with healthy cells from a donor.1

In the context of translational medicine, this procedure evolved from pioneering work by E. Donnall Thomas, who successfully performed the first syngeneic transplant in 1956. By refining tissue-matching techniques and developing immunosuppressive drugs to prevent graft rejection, researchers enabled the use of allogeneic transplants from related donors, significantly expanding treatment options for patients.12

For leukemia, allogeneic transplantation is particularly significant because the grafted marrow can provide a beneficial antitumor effect. While this approach carries risks—most notably graft-versus-host disease—it remains a cornerstone of therapy for malignant blood diseases. Today, advancements in stem cell therapy and apheresis continue to improve the safety and efficacy of these life-saving interventions, allowing many patients to achieve long-term remission.3412