T cell depletion with CAMPATH-1 in allogeneic bone marrow transplantation.

A total of 282 patients with leukemia have been treated by transplantation from HLA-matched siblings using marrow depleted of T cells with CAMPATH-1 and autologous complement. The incidence of graft-versus-host disease (GVHD) of grades 2-4 was only 12% but the maximum incidence of graft failure was...

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Autori principali: Hale, G, Cobbold, S, Waldmann, H
Natura: Journal article
Lingua:English
Pubblicazione: 1988
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author Hale, G
Cobbold, S
Waldmann, H
author_facet Hale, G
Cobbold, S
Waldmann, H
author_sort Hale, G
collection OXFORD
description A total of 282 patients with leukemia have been treated by transplantation from HLA-matched siblings using marrow depleted of T cells with CAMPATH-1 and autologous complement. The incidence of graft-versus-host disease (GVHD) of grades 2-4 was only 12% but the maximum incidence of graft failure was 15%. A significant increase in relapse cannot yet be detected in acute leukemia but relapse in chronic granulocytic leukemia (CGL) was substantially above that reported before T cell depletion. The most important predictive factor for relapse in CGL appeared to be slow engraftment. This finding suggests an alternative explanation for the graft-versus-leukemia effect other than a direct attack on leukemia cells. This is that donor T cells may affect the balance of competition between donor and recipient haemopoesis by preventing a rejection reaction to donor stem cells. Recipient leukemic cells would benefit (i.e. relapse) if recipient hemopoiesis gained an advantage. If this explanation were true we would expect extra immunosuppressive preconditioning of recipients to reduce the incidence of relapse, as well as preventing graft rejection.
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spelling oxford-uuid:875c4945-61a0-4b12-8e9a-e7c83ee22f8e2022-03-26T22:10:14ZT cell depletion with CAMPATH-1 in allogeneic bone marrow transplantation.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:875c4945-61a0-4b12-8e9a-e7c83ee22f8eEnglishSymplectic Elements at Oxford1988Hale, GCobbold, SWaldmann, HA total of 282 patients with leukemia have been treated by transplantation from HLA-matched siblings using marrow depleted of T cells with CAMPATH-1 and autologous complement. The incidence of graft-versus-host disease (GVHD) of grades 2-4 was only 12% but the maximum incidence of graft failure was 15%. A significant increase in relapse cannot yet be detected in acute leukemia but relapse in chronic granulocytic leukemia (CGL) was substantially above that reported before T cell depletion. The most important predictive factor for relapse in CGL appeared to be slow engraftment. This finding suggests an alternative explanation for the graft-versus-leukemia effect other than a direct attack on leukemia cells. This is that donor T cells may affect the balance of competition between donor and recipient haemopoesis by preventing a rejection reaction to donor stem cells. Recipient leukemic cells would benefit (i.e. relapse) if recipient hemopoiesis gained an advantage. If this explanation were true we would expect extra immunosuppressive preconditioning of recipients to reduce the incidence of relapse, as well as preventing graft rejection.
spellingShingle Hale, G
Cobbold, S
Waldmann, H
T cell depletion with CAMPATH-1 in allogeneic bone marrow transplantation.
title T cell depletion with CAMPATH-1 in allogeneic bone marrow transplantation.
title_full T cell depletion with CAMPATH-1 in allogeneic bone marrow transplantation.
title_fullStr T cell depletion with CAMPATH-1 in allogeneic bone marrow transplantation.
title_full_unstemmed T cell depletion with CAMPATH-1 in allogeneic bone marrow transplantation.
title_short T cell depletion with CAMPATH-1 in allogeneic bone marrow transplantation.
title_sort t cell depletion with campath 1 in allogeneic bone marrow transplantation
work_keys_str_mv AT haleg tcelldepletionwithcampath1inallogeneicbonemarrowtransplantation
AT cobbolds tcelldepletionwithcampath1inallogeneicbonemarrowtransplantation
AT waldmannh tcelldepletionwithcampath1inallogeneicbonemarrowtransplantation