Bone marrow transplantation between mixed leukocyte culture reactive siblings.

Bone marrow transplantation from an HLA identical MLC reactive sibling has been performed in a patient with acute myelogenous leukemia resistant to drug treatment. Prompt engraftment was documented; however, the patient died of septicemia 34 days after transplant. Clinical manifestation of graft vs. host reaction was mild but was moderately strong expressed at autopsy tissue samples. Recurrence of persistence of leukemia was found at the time of death.