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  • Title: Early fluctuations of BFU-E pool size after transfusion or erythropoietin treatment.
    Author: Peschle C, Cillo C, Rappaport IA, Magli MC, Migliaccio G, Pizzella F, Mastroberardino G.
    Journal: Exp Hematol; 1979 Feb; 7(2):87-93. PubMed ID: 428479.
    Abstract:
    The kinetics of erythroid burst-(BFU-E) and colony-forming units (CFU-E) have been evaluated in marrow and spleen of normal or polycythemic mice, respectively, after transfusion or administration or purified erythropoietin (Ep). Ep injection induces an early but temporary rise of BFU-E number, versus a later but more prolonged expansion of the CFU-E pool. Symmetric patterns are observed after transfusion, i.e., an early but transient depletion of the BFU-E population, versus a later but more persistent decrease of the CFU-E number. It is suggested that the size of the BFU-E compartment is Ep-dependent in the "early" phase after erythroid perturbation. Later on, however, compensatory mechanisms allow the BFU-E pool to "escape" from the early Ep influence, thus allowing its size to return to and stabilize in the near normal range. It is further suggested that the BFU-E may represent an early target cell of Ep stimulus.
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