Abstract
Enriched methyl cellulose media together with either human urinary erythropoietin or serum collected from phlebotomized dogs exposed to hypoxia was used in the study of the erythroid colony forming (CFU-E) capacity of dog marrow. The dog serum erythropoietin was found to be more efficient in stimulating CFU-E than comparable concentrations of human urinary erythropoietin. Numbers of CFU-E were directly related to the culture concentration of the stimulating serum and to the number of cells per plate. Sheep plasma erythropoietin was also found to be effective in stimulating CFU-E growth. The system described is chemically better defined and produced more consistent results than has been reported for the plasma clot method.
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Selected References
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