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  • Title: In vitro erythropoiesis. II. Cytochemical enumeration of erythroid stem cells (CFU-e and BFU-e) from normal mouse and human hematopoietic tissues.
    Author: Gallicchio VS, Murphy MJ.
    Journal: Exp Hematol; 1979 May; 7(5):219-24. PubMed ID: 89963.
    Abstract:
    A procedure which provides more accuracy in the identification and scoring of in vitro derived erythroid colonies (i.e. BFU-e and CFU-e) from normal mouse and human marrow and spleen cells has been developed. Up to now identification of erythroid colonies has been based on staining with acidified benzidine which consistently displays "background staining" of granulocyte/macrophage colonies. The staining reaction with these reagents is such that identification of erythroid colonies is less than precise. The modified benzidine procedure described herein eliminates the staining reactivity of granulocyte/macrophage colonies and specifically reacts with only those cells that contain hemoglobin. Furthermore, individual colonies and/or cells may readily be counterstained and examined by high resolution light microscopy.
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