Intrapatient comparison of an intermittent and a continuous flow cell separator for the collection of progenitor and stem cells from the blood.
Vox Sang 2000;
75:149-53. [PMID:
9784670]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
BACKGROUND AND OBJECTIVES
Continuous-flow and intermittent-flow blood cell separators (CFCS and IFCS) are both used to collect stem cells from the blood to rescue patients undergoing myeloablative treatment for cancer.
MATERIALS AND METHODS
We designed a study to compare the collection efficiency of the two systems. The continuous-flow Cobe Spectra and the intermittent-flow Haemonetics MCS-3P were used to collect cells on consecutive days from 9 patients mobilised with G-CSF with or without chemotherapy. Blood obtained before leukapheresis and the leukapheresis product were analysed for their content of red and white cells, platelets, CD34-positive cells, GM-CFC, CFC-E, and BFU-E. An extraction ratio was calculated.
RESULTS
We found that the CFCS extracted about 4 times more mononuclear cells per unit time, 3 times more CD34-positive, and 4 times more clonogenic cells than the IFCS. The subject acceptability of the two systems was similar.
CONCLUSION
The CFCS is a more efficient system for stem cell collection. IFCS requires a longer harvesting time for the same result.
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