The capacity of peripheral blood stem cells mobilised with chemotherapy plus G-CSF to repopulate irradiated marrow stroma in vitro is similar to that of bone marrow.
AffiliationCRC Department of Experimental Haematology, Paterson Institute for Cancer Research, Manchester, U.K.
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AbstractAfter treatment of patients with intermediate or high grade non-Hodgkin lymphoma with chemotherapy plus G-CSF the numbers of haemopoietic progenitor cells in the circulation increased to a mean of 226-fold for mixed CFC (Mix-CFC), 278-fold for GM-CFC and 29-fold for erythroid burst forming unit (BFU-E). The mean increase was modest (7-12-fold) for patients treated with chemotherapy alone. Peripheral blood mononuclear cells harvested at the time of the peak in the numbers of progenitors, or 2-4 days before the peak, seeded onto irradiated marrow stroma in vitro, repopulated the stroma and generated active haemopoiesis at least as effectively as bone marrow cells on a cell per cell basis. This is in contrast to the poor repopulating capacity of pretreatment blood. The results indicate that not only the progenitor cells, but also the repopulating stem cells migrated into the blood after chemotherapy plus G-CSF in sufficient numbers to allow harvesting and successful grafting without the possible complication of late haemopoietic failure.
CitationThe capacity of peripheral blood stem cells mobilised with chemotherapy plus G-CSF to repopulate irradiated marrow stroma in vitro is similar to that of bone marrow. 1992, 28 (2-3):381-6 Eur. J. Cancer
JournalEuropean Journal of Cancer
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