Separation of Immunoreactive Lymphocytes from Human Pluripotent Stem Cells (CFU-GEMM) by Means of Counterflow Centrifugation
Overview
Affiliations
Counterflow centrifugation with continuous monitoring of the output for cell number and cell scatter was used to separate low density (d less than 1.070 g/ml) human bone marrow cells in two fractions: one containing the majority of small size lymphocytes and the other the majority of the larger sized committed progenitor cells. The recovery of the pluripotent stem cells (CFU-GEMM) in the large cell fraction was complete. The mitogenic reactivity of this putative stem cell fraction had decreased to 6% and 11%, of the original value as measured with phytohemagglutinin stimulation and one way mixed lymphocytic culture respectively. Counterflow centrifugation offers a physical separation technique, by which the majority of the immunoreactive cells can be separated from the pluripotent hematopoietic stem cells.
The role of CFU-GEMM in human hemopoiesis.
Messner H Blut. 1986; 53(4):269-77.
PMID: 3530351 DOI: 10.1007/BF00320884.