Abstract:
:Patients with congenital T lymphocyte deficiency disorders received transplants with parental bone marrow depleted of mature T cells by the use of an anti-T cell monoclonal antibody (CT-2) and complement. Our results with 16 consecutive patients (20 transplants) showed rapid engraftment of donor cells; cytoreduction (busulfan, cytosine arabinoside [ara-C], cyclophosphamide) was used in six transplants, and marrow ablation was used in six (ara-C, cyclophosphamide, 1,365-cGy total body irradiation). No patient received prophylactic anti-graft-v-host disease (GVHD) therapy posttransplant, and only one patient developed significant GVHD, which involved the skin, liver, and gastrointestinal tract. Seven others showed some manifestations of GVHD, but these were of minimal clinical significance and required only occasional steroid therapy. Overall, eight patients are alive and well; eight did not survive. Polyclonal immunoglobulin synthesis by donor memory B cells was seen shortly after transplantation, with peak donor-derived serum levels seen approximately 2 months after transplantation. After this initial immunoglobulin synthesis waned, another wave of B cell responses developed. This immunoglobulin response appears to be permanent. T cell functions appeared as soon as 3 weeks after transplantation. This experience in a variety of patients with combined immunodeficiency who received transplants with monoclonal antibody T cell-depleted marrow shows gratifying results with a consistent T and B cell benefit.
journal_name
Bloodjournal_title
Bloodauthors
Moen RC,Horowitz SD,Sondel PM,Borcherding WR,Trigg ME,Billing R,Hong Rsubject
Has Abstractpub_date
1987-09-01 00:00:00pages
664-9issue
3eissn
0006-4971issn
1528-0020journal_volume
70pub_type
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