Abstract
Human leukocyte antigen (HLA)-mismatched stem cell transplantation from non-inherited maternal antigen (NIMA)-complementary donors is known to produce stable engraftment without inducing severe graft-versus-host disease (GVHD). We treated two patients with acute myeloid leukemia (AML) and one patient with severe aplastic anemia (SAA) with HLA-mismatched stem cell transplantation (SCT) from NIMA-complementary donors (NIMA-mismatched SCT). The presence of donor and recipient-derived blood cells in the peripheral blood of recipient (donor microchimerism) and donor was documented respectively by amplifying NIMA-derived DNA in two of the three patients. Graft rejection occurred in the SAA patient who was conditioned with a fludarabine-based regimen. Grade III and grade IV acute GVHD developed in patients with AML on day 8 and day 11 respectively, and became a direct cause of death in one patient. The findings suggest that intensive conditioning and immunosuppression after stem cell transplantation are needed in NIMA-mismatched SCT even if donor and recipient microchimerisms is detectable in the donor and recipient before SCT.
MeSH terms
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Acute Disease
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Adolescent
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Adult
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Anemia, Aplastic / immunology
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Anemia, Aplastic / pathology
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Anemia, Aplastic / surgery*
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Blast Crisis / immunology
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Blast Crisis / pathology
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Blast Crisis / surgery*
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Chimera / genetics
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Chimera / immunology*
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Cord Blood Stem Cell Transplantation
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Disease Progression
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Fatal Outcome
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Female
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Graft Rejection / genetics
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Graft Rejection / immunology*
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Graft vs Host Disease / genetics
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Graft vs Host Disease / immunology*
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Graft vs Host Disease / prevention & control
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HLA Antigens / genetics*
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HLA Antigens / immunology
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Histocompatibility
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Humans
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Immunity, Maternally-Acquired*
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Isoantigens / immunology
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Leukemia, Myelogenous, Chronic, BCR-ABL Positive / immunology
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Leukemia, Myelogenous, Chronic, BCR-ABL Positive / pathology
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Leukemia, Myelogenous, Chronic, BCR-ABL Positive / surgery*
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Leukemia, Myeloid / drug therapy
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Leukemia, Myeloid / pathology
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Male
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Peripheral Blood Stem Cell Transplantation / adverse effects*
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Precursor Cell Lymphoblastic Leukemia-Lymphoma / immunology
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Precursor Cell Lymphoblastic Leukemia-Lymphoma / pathology
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Precursor Cell Lymphoblastic Leukemia-Lymphoma / surgery*
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Remission Induction
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Siblings
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Tissue Donors*
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Transplantation Conditioning / methods*
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Vidarabine / administration & dosage
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Vidarabine / analogs & derivatives
Substances
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HLA Antigens
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Isoantigens
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Vidarabine
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fludarabine