Abstract
The assay system for determination of haemopoietic progenitors in peripheral blood of rats is essen tial for potential studies on mobilisation and transplantation of circulating progenitor cells in a rat experimental model. This paper demonstrates the possibility of detection and quantification of pluripotent progenitors (Colony Forming Units-Spleen day 8-CFU-Sd8) and committed progenitors (Colony Forming Units Granulocyte Macrophage-CFU-GM and Burst Forming Units-Erythroid-BFU-E) in peripheral blood of rats in a steady state. For determination of CFU-Sd8 the ‘rat to mouse’ in vivo assay was used, and for committed progenitors in vitro assays on methylcellulose were employed. The CFU-Sd8 incidence ranged from 7.3 to 11.6/ml of rat blood, similar to that reported in literature for mice. The incidence of CFU-GM was found to be 59.7 ± 9.4/ml which is in the range of the literature data for mice, rabbits, dogs and humans. The incidence of BFU-E in rat peripheral blood was 4.3 ± 1/ml, which was relatively low, but could be also considered as comparable with some literature data for dogs and humans. The CFU-E were not detected by the technique used. These results confirmed the existence of circulatory blood pluripotent progenitors (CFU-Sd8) and committed (CFU-GM and BFU-E) progenitors in rat, as has been established for some other mammalian species.
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Ivanovic, Z., Petakov, M., Jovčić, G. et al. Pluripotent and committed haemopoietic progenitor cells in rat peripheral blood. Comparative Haematology International 7, 1–6 (1997). https://doi.org/10.1007/BF01320992
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DOI: https://doi.org/10.1007/BF01320992