Erythropoiesis is the regulated hematopoietic differentiation pathway by which pluripotent hematopoietic stem cells in the bone marrow give rise, through committed erythroid progenitors, to enucleated circulating erythrocytes; its governing principle is negative-feedback control in which renal peritubular interstitial cells sense tissue oxygen tension and secrete erythropoietin to set the rate of progenitor survival, proliferation, and terminal maturation. The concept belongs to hematology within physiology and cell biology, and formalizes terms such as hematopoietic stem cell, erythroid progenitor (BFU-E, CFU-E), erythroblast, reticulocyte, erythropoietin, and hemoglobin synthesis. It sits beneath the parent discipline of hematopoiesis alongside leukopoiesis and thrombopoiesis, and supplies the theoretical basis for interpreting red cell indices, reticulocyte kinetics, and the classification of anemias as production, maturation, or survival defects.
Erythropoiesis is the regulated hematopoietic differentiation pathway by which pluripotent hematopoietic stem cells in the bone marrow give rise, through committed erythroid progenitors, to enucleate…