Table 1

Immunophenotype of the cells obtained after 6 week LTC-IC-HE of adult human purified CD34LinCD45CD133 compared with CD34LinCD45CD133+ cells

Experiment no.Purified starting cell populationCells per wellNo. of seeded wellsNo. of wells with proliferated cellsNo. of wells positive for cells
CD45+KDR onlyCD45KDR+ onlyCD45+KDR CD45KDR+
CD34LinCD45CD133 60 12 
 CD34LinCD45CD133 10 
CD34LinCD45CD133+ 60 
 CD34LinCD45CD133+ 10 
CD34LinCD45+CD133 60 14 14 
 CD34LinCD45+CD133 10 
CD34LinCD45+CD133+ 60 30 30 
 CD34LinCD45+CD133+ 10 
Experiment no.Purified starting cell populationCells per wellNo. of seeded wellsNo. of wells with proliferated cellsNo. of wells positive for cells
CD45+KDR onlyCD45KDR+ onlyCD45+KDR CD45KDR+
CD34LinCD45CD133 60 12 
 CD34LinCD45CD133 10 
CD34LinCD45CD133+ 60 
 CD34LinCD45CD133+ 10 
CD34LinCD45+CD133 60 14 14 
 CD34LinCD45+CD133 10 
CD34LinCD45+CD133+ 60 30 30 
 CD34LinCD45+CD133+ 10 

Wells from 96-well plates precoated with MS-5 cells were seeded with 1-50 hPB cells of the selected phenotype with the use of the automatic cell device unit of the FACSVantage. Cells were cultured in LTC-IC-HE conditions as described in “Methods.” At the end of the 6-week culture period, individual wells were visually inspected, and wells that contained enough cells were harvested and cells were labeled with lineage-specific Abs. Analysis was performed on the FACSort as described.

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