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Effect of tolerance to noninherited maternal antigens on the occurrence of graft-versus-host disease after bone marrow transplantation from a parent or an HLA-haploidentical sibling. Blood 2002 Mar 01;99(5):1572-7 PMID: 11861270

Pubmed ID



In haploidentical transplantation, the mismatched haplotype of the donor can originate from either of the parents. We refer to such mismatched haplotypes as noninherited maternal antigens (NIMA haplotype) or noninherited paternal antigens (NIPA haplotype). To determine whether exposure to maternal HLA antigens benefits patients undergoing bone marrow transplantation, we analyzed graft failure and graft-versus-host disease (GVHD) after transplantations from parental or haploidentical sibling donors. We studied 269 patients receiving 1 or 2 HLA-A, -B, -DR antigen-mismatched sibling or parental non-T-cell-depleted bone marrow transplants for acute myelogenous leukemia, acute lymphoblastic leukemia, or chronic myelogenous leukemia between 1985 and 1997 that were reported to the International Bone Marrow Transplant Registry. Included were 121 (45%) NIMA-mismatched and 148 (55%) NIPA-mismatched transplantations. Sixty-three (52%) of the NIMA-mismatched transplants and 69 (47%) of the NIPA-mismatched transplants were from haploidentical sibling donors. Sibling transplantations mismatched for NIMA had similar rates of graft failure but lower rates of acute GVHD (P <.02) than NIPA-mismatched sibling transplantations. In the first 4 months after transplantation, mother-to-child transplantations involved significantly less chronic GVHD than father-to-child transplantations (P <.02). Treatment-related mortality (TRM) was significantly higher after parental transplantations (P =.009 for mother; P =.03 for father) than after haploidentical sibling transplantations mismatched for the NIMA. Non-T-cell-depleted bone marrow transplants donated by haploidentical siblings to recipients mismatched for NIPA and transplants donated by parents caused more acute and chronic GVHD and TRM than transplants donated by haploidentical siblings mismatched for NIMA.

Author List

van Rood JJ, Loberiza FR Jr, Zhang MJ, Oudshoorn M, Claas F, Cairo MS, Champlin RE, Gale RP, Ringdén O, Hows JM, Horowitz MH


Mary M. Horowitz MD, MS Center Director, Professor in the Medicine department at Medical College of Wisconsin
Mei-Jie Zhang PhD Professor in the Institute for Health and Equity department at Medical College of Wisconsin


2-s2.0-0036493859   213 Citations

MESH terms used to index this publication - Major topics in bold

Bone Marrow Transplantation
Child, Preschool
Graft Survival
Graft vs Host Disease
HLA Antigens
Immune Tolerance
Maternal-Fetal Exchange
Middle Aged
Nuclear Family
Transplantation, Homologous
jenkins-FCD Prod-332 f92a19b0ec5e8e1eff783fac390ec127e367c2b5