1,721,063 research outputs found

    Haplo-BMT: which approach?

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    In patients with hematologic malignancies, Di Bartolomeo et al report encouraging outcomes after transplantation of granulocyte-colony stimulating factor (G-CSF)– primed unmanipulated bone marrow from human leukocyte antigen (HLA)– haplotype mismatched (haploidentical) related donors, suggesting that this procedure makes haploidentical transplantation available in all transplant centers

    Haploidentical hematopoietic stem cell transplantation with a megadose T-cell-depleted graft: harnessing natural and adaptive immunity.

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    For patients with high-risk acute leukemia who do not have a matched donor or who urgently need a transplant, transplantation from a full human leukocyte antigen (HLA) haplotype mismatched family donor should be considered a viable option. Clinical trials have shown that a strategy for haploidentical transplantation based on the infusion of high numbers of T-cell-depleted hematopoietic progenitor cells and no post-transplant immunosuppression controls bi-directional T-cell alloreactivity, ie, graft rejection and graft-versus-host disease (GvHD) in patients with leukemia. Overall, event-free survival compares favorably with reports of transplants using sources of stem cells other than the matched sibling. This transplant modality has highlighted the crucial role of donor-versus-recipient natural killer cell (NK) alloreactivity in the control of leukemia relapse. Current studies are focusing on rebuilding post-transplant immunity to improve clinical outcomes
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