OBJECTIVE: The aim of this study was to investigate and compare immune reconstitution in allogeneic cord blood transplantation (CBT) and bone marrow transplantation (BMT) recipients. MATERIALS AND METHODS: Twenty-three children underwent CBT from either human leukocyte antigen-identical siblings (11 cases) or unrelated donors (12 cases) were enrolled in the study, together with 23 matched children receiving BMT. Patients were analyzed 2-3 and 12-15 months after transplant. Recovery of T-, B-, and NK-lymphocyte subsets, proliferative in vitro response to mitogens, as well as cytotoxic activities, were investigated. RESULTS: CBT recipients showed a marked increase in the number of B lymphocytes as compared with patients who underwent BMT (p < 0.001). The absolute number of CD3(+) and CD8(+) T cells, as well as the proliferative response to T-cell mitogens, recovered with time after transplantation, irrespective of the source of stem cells used. Recipients of unrelated CBT had a better recovery of CD4(+) T lymphocytes (p < 0.01). Among patients experiencing acute graft-versus-host disease (GVHD), children given CBT had a much greater production of CD4(+) CD45RA(+) T cells than BMT recipients (p < 0.005). Recovery of NK cell number and innate cytotoxic activities was fast, irrespective of the source of stem cells used. CONCLUSIONS: Despite the much lower number of lymphocytes transferred with the graft, recovery of lymphocyte number and function toward normal in CBT recipients was rapid and comparable to that observed after transplantation of bone marrow progenitors. This prompt immune recovery possibly was favored by the reduced incidence and severity of GVHD observed in children who underwent CBT.
OBJECTIVE: The aim of this study was to investigate and compare immune reconstitution in allogeneic cord blood transplantation (CBT) and bone marrow transplantation (BMT) recipients. MATERIALS AND METHODS: Twenty-three children underwent CBT from either human leukocyte antigen-identical siblings (11 cases) or unrelated donors (12 cases) were enrolled in the study, together with 23 matched children receiving BMT. Patients were analyzed 2-3 and 12-15 months after transplant. Recovery of T-, B-, and NK-lymphocyte subsets, proliferative in vitro response to mitogens, as well as cytotoxic activities, were investigated. RESULTS:CBT recipients showed a marked increase in the number of B lymphocytes as compared with patients who underwent BMT (p < 0.001). The absolute number of CD3(+) and CD8(+) T cells, as well as the proliferative response to T-cell mitogens, recovered with time after transplantation, irrespective of the source of stem cells used. Recipients of unrelated CBT had a better recovery of CD4(+) T lymphocytes (p < 0.01). Among patients experiencing acute graft-versus-host disease (GVHD), children given CBT had a much greater production of CD4(+) CD45RA(+) T cells than BMT recipients (p < 0.005). Recovery of NK cell number and innate cytotoxic activities was fast, irrespective of the source of stem cells used. CONCLUSIONS: Despite the much lower number of lymphocytes transferred with the graft, recovery of lymphocyte number and function toward normal in CBT recipients was rapid and comparable to that observed after transplantation of bone marrow progenitors. This prompt immune recovery possibly was favored by the reduced incidence and severity of GVHD observed in children who underwent CBT.
Authors: Krishna V Komanduri; Lisa S St John; Marcos de Lima; John McMannis; Steven Rosinski; Ian McNiece; Susan G Bryan; Indreshpal Kaur; Sean Martin; Eric D Wieder; Laura Worth; Laurence J N Cooper; Demetrios Petropoulos; Jeffrey J Molldrem; Richard E Champlin; Elizabeth J Shpall Journal: Blood Date: 2007-08-01 Impact factor: 22.113
Authors: Allistair A Abraham; Tami D John; Michael D Keller; C Russell N Cruz; Baheyeldin Salem; Lauren Roesch; Hao Liu; Fahmida Hoq; Bambi J Grilley; Adrian P Gee; Hema Dave; David A Jacobsohn; Robert A Krance; Elizabeth J Shpall; Caridad A Martinez; Patrick J Hanley; Catherine M Bollard Journal: Blood Adv Date: 2019-07-23
Authors: Nancy Bunin; Trudy Small; Paul Szabolcs; K Scott Baker; Michael A Pulsipher; Troy Torgerson Journal: Biol Blood Marrow Transplant Date: 2011-11-17 Impact factor: 5.742
Authors: Suhag H Parikh; Adam Mendizabal; Cara L Benjamin; Krishna V Komanduri; Jeyaraj Antony; Aleksandra Petrovic; Gregory Hale; Timothy A Driscoll; Paul L Martin; Kristin M Page; Ketti Flickinger; Jerelyn Moffet; Donna Niedzwiecki; Joanne Kurtzberg; Paul Szabolcs Journal: Biol Blood Marrow Transplant Date: 2013-12-01 Impact factor: 5.742