title: CFU-c enrichment from human bone marrow using a discontinuous Percoll gradient and soybean agglutinin in comparison with Ficoll-paque.
abstract: This study compares the efficiency of different methods of separation of human bone marrow in vitro prior to transplantation. Separation on Ficoll-paque resulted in a median recovery of 11.3 X 10(4) CFU-c/10(9) nucleated cells harvested. The recovery from the major CFU-c containing fraction following separation on a discontinuous Percoll gradient was 10.8 X 10(4) CFU-c/10(9) nucleated cells. The CFU-c recovered from Percoll were contained in a smaller number of cells, resulting in enrichment for CFU-c of 1.6 times that of Ficoll-paque. Further CFU-c enrichment to approximately three times that of Ficoll-paque separation was possible by treatment of Percoll fractionated cells with soybean agglutinin (SBA). However this caused an overall loss of 67% of CFU-c. Cells remaining after SBA treatment of the CFU-c containing Percoll fraction had increased spontaneous DNA synthesis and decreased PHA responses. There was no significant change in the mixed lymphocyte reaction in comparison with Ficoll-paque.
mesh_terms: D000293:Adolescent; D000328:Adult; D001853:Bone Marrow / Q000276:immunology; D001854:Bone Marrow Cells; D002469:Cell Separation / Q000379:methods*; D002499:Centrifugation, Density Gradient; D002648:Child; D002675:Child, Preschool; D003114:Colony-Forming Units Assay; D005260:Female; D005362:Ficoll; D006412:Hematopoietic Stem Cells / Q000166:cytology*; D006801:Humans; D007223:Infant; D037102:Lectins; D008297:Male; D008875:Middle Aged; D037121:Plant Lectins; D011205:Povidone; D012822:Silicon Dioxide; D030262:Soybean Proteins; D010835:Phytohemagglutinins
chemical_list: D005362:Ficoll; D037102:Lectins; D037121:Plant Lectins; D011205:Povidone; D012822:Silicon Dioxide; D030262:Soybean Proteins; C028824:soybean lectin; D010835:Phytohemagglutinins; C016039:Percoll