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Murine Sca-1(+)/Lin(-) cells and human KG1a cells exhibit multiple pseudopod morphologies during migration

Francis K, Palsson B, Donahue J, Fong S, Carrier E. Exp Hematol. 2002 May;30(5):460-3.

Abstract

Objective: The migration of primitive hematopoietic cells has been studied mostly via population-based assays while the actual mechanisms of cell motion have been defined by tracking individual mature cells. In this report, we examined individual immature hematopoietic cells to determine if any notable differences in migration mechanisms exist due to the primitive nature of the cells.

Materials and methods: Murine cells of the Sca-1(+)/Lin(-) phenotype were isolated from C57BL/6 mice using Miltenyi bead purification and flow cytometric sorting. These cells were then observed for long periods of time with an environmentally controlled time-lapse microscope system in either multiwell plates or micropore transwell chambers. Experiments were also performed with the human KG1a immature hematopoietic cell line.

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