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  • Title: [Colony-forming hematopoietic cells in the mouse embryonic lung].
    Author: Romanova LK, Timoshchuk OA, Kulikova GV.
    Journal: Biull Eksp Biol Med; 1990 Dec; 110(12):647-50. PubMed ID: 2083372.
    Abstract:
    The colony-forming activity of embryo lung cells CBA mice was determined according to the Till and McCulloch technique (1961). After intravenous injection to jung cells (1 x 10(6)) from 14-day embryos the total number of colonies on the area of 1 mm2 of spleen sections from irradiated recipient mice averaged 2.31 +/- 0.39 whereas after transplantation of lung cells from 15-day embryos it averaged 2.34 +/- 0.53. The percent of macrocolonies equalled 52.5% in the former case and only 2.5% in the latter case. Macrocolonies contained cells of the myeloid, erythroid and megakaryocyte lines. Microcolonies predominantly consisted of granulocytes at various stages of differentiation. Thus, polypotent stem hematopoietic cells migrate into the fetal lung in vivo. The colony-forming ability of the lung polypotent stem cells decreases as the period of embryogenesis increases.
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