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Biol Blood Marrow Transplant. 2019 Jun;25(6):1210-1217. doi: 10.1016/j.bbmt.2019.01.030. Epub 2019 Jan 30.

Comparable Outcomes after Hematopoietic Stem Cell Transplantation from Mother Donors and Matched Unrelated Donors in Patients with Hematopoietic Malignancies.

Author information

1
Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Peking University People's Hospital, Peking University Institute of Hematology, Beijing, China.
2
Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Peking University People's Hospital, Peking University Institute of Hematology, Beijing, China; Peking-Tsinghua Center for Life Sciences, Beijing, China.
3
Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Peking University People's Hospital, Peking University Institute of Hematology, Beijing, China. Electronic address: ywyw3172@sina.com.

Abstract

Haploidentical transplantations have achieved comparable survival as HLA fully matched unrelated donors (URDs). When choosing the best donor for HLA haploidentical transplantations, most institutions prioritize using young male donors over mother donors. In a retrospective study we compared outcomes in mother donor and URD transplantations. We found that both 2-year overall survival and 2-year leukemia-free survival were comparable between the mother donor group and URD group (74.8% versus 72.9%, P = .937, and 71.7% versus 67.0%, P = .580, respectively). Higher incidences of grades II to IV acute graft-versus-host disease (GVHD) and chronic GVHD were observed in the mother donor group than in the URD group (43.5% versus 14.0%, P = .001, and 62.2% versus 38.7%, P = .007, respectively). The 2-year cumulative incidences of relapse were significantly decreased in the mother donor group (7.6% versus 20.9%, P = .036). These findings suggest mother donor transplantations could achieve comparable survival with URD transplantations and exhibited decreased rates of relapse but increased rates of GVHD, indicating that mother donors would be a suitable choice for patients without an identical sibling donor.

KEYWORDS:

Hematopoietic stem cell transplantation; Matched unrelated donors; Mother donors; Outcomes

PMID:
30708190
DOI:
10.1016/j.bbmt.2019.01.030

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