Regulation of hematopoiesis

There is big number regulatory substances, hematopoietic factors, which may influence almost all phases of hemaotpoiesis.
Hematopoietic factors are members cytokine family.
Hematopoietic factors are released from hematopoietic, stromal and other cells and can interact through specific receptors with different types of cells and change their functional activity.
Better understanding of hematopoiesis would improve treatment of hematological diseases