blood_and_immune_upper_slim develops from erythroid progenitor cell blast forming unit erythroid burst forming unit erythroid https://cellxgene.cziscience.com/cellguide/CL_0000038 BFU-E erythroid stem cell Erythroid progenitor cells play a key role in the hematopoietic system, specifically in the process of erythropoiesis – the production of red blood cells (erythrocytes). Found within the bone marrow, these cells are dedicated precursors to erythrocytes, and ensue in the hematopoietic lineage from multipotent progenitors. They represent a transitional cell type that bridges the gap between the early-stage erythroid precursors and the maturing red blood cell population. The earliest committed erythroid progenitor cell is thought to be the burst-forming unit-erythroid (BFU-E) cell, which after several cell divisions gives rise to another erythroid progenitor, the colony-forming unit-erythroid (CFU-E) cell. Erythroid progenitor cells are primarily responsible for responding to the demand for new red blood cells during conditions of physiological stress like infection, blood loss, or illness. This responsive behavior is regulated by a glycoprotein hormone known as erythropoietin, which is produced by the kidneys. Erythropoietin interacts with the receptors on the erythroid progenitor cells, prompting them to proliferate and differentiate into erythroblasts. The erythroblasts then further mature, eventually producing new, functional red cells. The role of erythroid progenitor cells extends beyond their main function of erythrocyte production, as they also participate in maintaining the balance of iron in the body. Upon erythroid differentiation, they increase their uptake of transferrin-bound iron for hemoglobin synthesis, a vital component of red blood cells which allows them to transport oxygen. A deficiency or excess of erythroid progenitor cells can lead to extensive health issues such as anemia or polycythemia respectively, emphasizing their crucial role in human health. (This extended description was generated by ChatGPT and reviewed by the CellGuide team, who added references, and by the CL editors, who approved it for inclusion in CL. It may contain information that applies only to some subtypes and species, and so should not be considered definitional.) erythroid progenitor cell BTO:0004911 CFU-E ZFA:0009015 colony forming unit erythroid A progenitor cell committed to the erythroid lineage. megakaryocyte-erythroid progenitor cell erythroid lineage cell myeloid lineage restricted progenitor cell