Open AccessProgenitor content of autologous grafts: mobilized bone marrow vs mobilized blood
Author(s) -
Eric E. Dahl,
John R. Burroughs,
Todd E. DeFor,
Catherine M. Verfaillie,
Daniel J. Weisdorf
Publication year - 2003
Publication title -
bone marrow transplantation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.609
H-Index - 127
eISSN - 1476-5365
pISSN - 0268-3369
DOI - 10.1038/sj.bmt.1704237
Subject(s) - progenitor cell , haematopoiesis , bone marrow , stem cell , medicine , clonogenic assay , cd34 , transplantation , myeloid , immunology , progenitor , granulocyte colony stimulating factor , andrology , biology , cell , microbiology and biotechnology , chemotherapy , genetics
The progenitor content of autologous peripheral blood progenitor and stem cell collections is a major determinant of prompt hematopoietic recovery following autologous stem cell transplantation. We analyzed unstimulated bone marrow (BM) and peripheral blood (PB) apheresis products in comparison to those collected following G-CSF or GM-CSF stimulation. We quantitated their committed (CFU-GM) and primitive (long-term culture-initiating cells, LTC-IC) progenitors in relation to hematologic recovery in 63 patients undergoing autografting for lymphoid malignancies. G-CSF, but not GM-CSF, substantially enriched the committed progenitor content (2.5-3.6-fold) of both PB and BM grafts. G-CSF also enriched the LTC-IC content of BM and PB compared to control grafts. GM-CSF augmented (11.5-fold) the LTC-IC content of stimulated BM, but not GM-CSF-mobilized PB. Neutrophil recovery was substantially quicker in recipients of BM or PB mobilized with G-CSF or GM-CSF. In contrast, red cell and platelet recovery was accelerated in recipients of GM-CSF-stimulated BM (but not PB) and G-CSF-stimulated PB (but not BM). No direct correlation between progenitor dose and hematopoietic recovery for neutrophils, platelets or red cells was observed. Cytokine stimulation can augment the committed and more primitive multilineage progenitor content of BM and PB grafts, to a differing extent. The uncertain relationship with multilineage myeloid recovery emphasizes the limitations in using clonogenic progenitor analyses to assess the adequacy of an autologous graft prior to transplantation.