Bone Marrow Transplantation: A Review

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Abstract
The indications for bone marrow transplantation (BMT) continue to expand as supportive care improves and alternative stem cell sources have been exploited. The application of allogeneic BMT has expanded to include unrelated histocompatibility antigen-matched donors and partially matched family donors. While the results of these transplants are not as good as those with sibling donors, these alternative donors allow curative therapy to be delivered to patients with leukemia, aplastic anemia, and immunodeficiency diseases who otherwise would not be eligible for curative therapy. Autologous BMT has emerged as a curative therapy for patients with non-Hodgkin's lymphoma, Hodgkin's disease, acute myeloid leukemia, and acute lymphoblastic leukemia. In addition, dose-intensive therapy with marrow or peripheral blood stem cell support to patients with Stage II, III, and IV breast carcinoma is under intense study in single and multiple-institution studies. Important issues under active study are prophylaxis for graft-versus-host-disease, the role of marrow purging in autologous BMT, the use of cytokine and chemotherapy-mobilized peripheral blood stem cells, and control of infectious diseases. This review summarizes current results in both allogeneic and autologous bone marrow transplantation, issues in marrow graft manipulations, issues in infectious disease control, the application of gene therapy to correct genetic disease through bone marrow or peripheral blood infusion, and current concepts in post-BMT immunization.