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The immunogenetics of bone marrow transplantation
1Bone Marrow Transplant Program, University of Utah Health Sciences Center, Salt Lake City 84132.
Transfusion Medicine Reviews
|January 1, 1994
Summary
Successful marrow transplants are possible without a genetically identical donor, but histoincompatibility increases complication risks. Precise histocompatibility testing is crucial for optimal donor selection and predicting adverse reactions in bone marrow transplantation.
Area of Science:
- Immunogenetics
- Hematology
- Transplantation Medicine
Background:
- Bone marrow transplantation (BMT) success is traditionally linked to human leukocyte antigen (HLA) compatibility.
- Increasing evidence suggests successful BMT is achievable with HLA-mismatched donors.
Purpose of the Study:
- To emphasize the critical role of precise histocompatibility testing in BMT.
- To guide donor selection strategies based on the degree of HLA mismatch.
- To predict the risk of adverse alloreactivity in BMT recipients.
Main Methods:
- Analysis of clinical outcomes in relation to HLA matching and mismatching.
- Evaluation of histocompatibility testing precision for donor selection.
- Risk assessment for adverse alloreactivity based on HLA disparity.
Main Results:
- Successful marrow transplantation is feasible without a genotypically identical HLA donor.
- The risk of BMT complications escalates with increasing HLA histoincompatibility.
- Clinicians consider one-locus mismatched relative or HLA-matched unrelated donors for BMT.
Conclusions:
- High-precision histocompatibility testing is essential for optimal donor selection in BMT.
- Careful consideration is required for BMT using two or three loci-mismatched relatives or unrelated donors.
- Balancing transplant benefits against risks of histoincompatibility is key in BMT decision-making.