The primary function of hematopoietic growth factors is to bind to specific receptors on the surface of hematopoietic stem cells and progenitor cells, triggering signaling pathways that lead to cell division and differentiation. These factors include erythropoietin (EPO), granulocyte colony-stimulating factor (G-CSF), and granulocyte-macrophage colony-stimulating factor (GM-CSF), among others. Each of these factors targets specific blood cell types, promoting the growth of erythrocytes, neutrophils, and macrophages, respectively.
