Non-leukemic autologous reconstitution after allogeneic bone marrow transplantation for Ph-positive chronic myelogenous leukemia: extended remission preceding eventual relapse.
Bone Marrow Transplant
; 26(11): 1173-7, 2000 Dec.
Article
em En
| MEDLINE
| ID: mdl-11149727
Autologous reconstitution is the recovery of autologous hematopoietic function after failure of an allogeneic graft to establish sustained hematopoiesis either with or without preceding donor engraftment. We reviewed 9 years experience of the University of Minnesota and identified 10 of 291 patients who underwent allogeneic BMT for Ph-positive CML and developed non-leukemic autologous reconstitution. All patients received the same preparative regimen with cyclophosphamide and total body irradiation. Eight patients had a 6/6-antigen matched donor. Eight patients received their graft from an unrelated donor. In five cases the graft was T cell-depleted. Non-malignant autologous reconstitution initially manifested as mixed chimerism in nine of 10 patients and lasted for a median of 11 (3-41) months. Eight patients have relapsed and four are still alive. The two relapse-free patients have died 24 and 48 months post transplant. Of the four surviving patients, two are in interferon-induced cytogenetic remission at 53+ and 101+ months of follow-up. Autologous non-leukemic reconstitution is uncommon, but appears to be a distinct clinical syndrome, perhaps occurring more frequently after unrelated donor BMT. Although usually followed by relapse, relapse-free survival may be prolonged.
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Base de dados:
MEDLINE
Assunto principal:
Células-Tronco Hematopoéticas
/
Leucemia Mielogênica Crônica BCR-ABL Positiva
/
Transplante de Medula Óssea
Limite:
Adult
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Child, preschool
/
Female
/
Humans
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Infant
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Male
/
Middle aged
Idioma:
En
Ano de publicação:
2000
Tipo de documento:
Article