Interleukin 3 (IL-3) is a pleiotropic cytokine, produced mostly by activated T-cells, which can boost the body's natural response to disease as part of the immune system by connecting to the Interleukin 3 Receptor (IL-3R).
Interleukin 3 also arouses proliferation, differentiation and survival of haematopoietic cell lines in cells like the granulocytes, monocytes and dendritic, in combination with additional cytokines like Erythropoietin (EPO),
Granulocyte Macrophage Colony-Stimulating Factor (GM-CSF) and IL-6.
It is produced by basophils and activated T-cells to help growth and differentiation of T-cells from the bone marrow in an immunity answer. Activated T-cells, on the other hand, can activate their own proliferation and
differentiation or that of other T-cells, which both should participate in connection to IL-2 Receptor (IL-2R) on T-cells.