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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Ishii, E. Gengozian, N. Good, R. A. |
| Description | Author Affiliation: Ishii E ( Department of Pediatrics, All Children's Hospital, University of South Florida, St. Petersburg 33701.); |
| Abstract | To study murine major histocompatibility complex (MHC)-haploidentical bone-marrow transplantation (BMT), B6C3F1 mice (H-2b/k) underwent BMT using syngeneic [B6C3F1 (H-2b/k)], haploidentical [CB6F1 (H-2d/b)], or fully allogeneic [DBA/2 (H-2d)] donor mice. As pretreatment, dimethyl myleran (DMM), an alkylating agent that produces effective myeloablation but little immunosuppression, was used with total body irradiation (TBI). Four conditioning regimens were studied: TBI 800 rads (1 rad = 0.01 Gy), TBI 950 rads, TBI 800 rads plus DMM (0.2 mg per mouse), and TBI 950 rads plus DMM. Survival rates, chimerism, proliferative responses in mixed-lymphocyte culture, specific cell-mediated lympholysis, and in vivo plaque-forming cell responses to several antigens were compared. TBI 800 rads plus DMM was maximally effective. Haploidentical BMT was as successful in inducing long-term survival and immune and hematologic reconstitution as was syngeneic BMT. This regimen plus haploidentical BMT of T-cell-purged marrow yielded survivors tolerant of donor and recipient major histocompatibility complex. Such myeloablation and immunosuppression prevented graft rejection, immunodeficiency due to histoincompatibility, and damage to a radiosensitive cell population. A microenvironmental influence crucial to some antibody responses was thus revealed. Delayed recovery of antibody production after BMT in humans may be due partly to suboptimal myeloablation or excess irradiation. |
| ISSN | 00278424 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 19 |
| Volume Number | 88 |
| Language | English |
| Publisher | National Academy of Sciences |
| Publisher Date | 1991-10-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Bone Marrow Transplantation Immunology Busulfan Analogs & Derivatives Immune Tolerance Drug Effects Animals Antibody Formation Pharmacology Cytotoxicity, Immunologic Immunity, Cellular Lymphocyte Culture Test, Mixed Major Histocompatibility Complex Mice Mice, Inbred Strains Radiation Chimera Multidisciplinary |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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