Abstract
Background: Mismatched family donor and unrelated donor BM transplants are associated with a high risk of acute GvHD. While T-cell depletion is the best method to reduce risk of acute GvHD, there was a reluctance to use T-cell depletion in the mismatched setting because of increased risk of rejection and relapse. Partial T-cell depletion, by the panning of CDS and CD8 positive T cells may reduce complications related to GvHD -without compromising outcomes. Method: In a long-term follow-up of a Phase II study of partial T-cell depletion by panning for BM transplant, 32 recipients received transplants from a single-Ag (HLA A, B, or DR) mismatched family donor; or an HLA serologically-matched unrelated donor. Patients were studied for engraftment, GHD, relapse and survival. Results: 30 (94%) of the patients marrow engrafted. The cumulative risk of Grade 2-4 acute GvHD was 62 ± 9%; of Grade 3-4 GvHD, 11 ± 6%. The 4-year cumulative risk of relapse was 18 ± 8% and actuarial survival was 44 ± 9%. Discussion :Partial T-cell depletion had a low rate of severe acute GvHD without compromising engrafment or relapse risk.
Original language | English (US) |
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Pages (from-to) | 401-407 |
Number of pages | 7 |
Journal | Cytotherapy |
Volume | 1 |
Issue number | 5 |
DOIs | |
State | Published - 1999 |
Keywords
- Bone marrow
- T-cell depletion
- Unrelated
ASJC Scopus subject areas
- Immunology and Allergy
- Immunology
- Oncology
- Genetics(clinical)
- Cell Biology
- Cancer Research
- Transplantation