PMID: 15387119Sep 25, 2004Paper

Reduced-intensity conditioning for the treatment of malignant and life-threatening non-malignant disorders

Clinical Transplants
Shimon SlavinR Or

Abstract

Allogeneic bone marrow or blood stem cell transplantation (BMT) represents an important therapeutic tool for the treatment of an otherwise incurable broad spectrum of malignant and non-malignant diseases. Until recently, BMT was used primarily to replace a malignant, genetically abnormal or deficient immunohematopoietic compartment and therefore, highly toxic myeloablative regimens were considered mandatory for more effective eradication of all undesirable host-derived hematopoietic cells, including stem cells and their progeny. Our preclinical and ongoing clinical studies indicated that much more effective eradication of host immunohematopoietic system cells can be mediated by donor lymphocytes in the process of adoptive allogeneic cell therapy following BMT. Thus, eradication of all malignant cells, especially in patients with CML and, to a lesser extent, in patients with other hematologic malignancies can be accomplished despite complete resistance of puch tumor cells to maximally tolerated doses of chemoradiotherapy. Our cumulative experience suggested that graft-versus-malignancy effects might be used as a tool for eradication of otherwise resistant tumor cells of host origin. We speculated that the therapeutic benefit of ...Continue Reading

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