Granulocyte-macrophage colony-stimulating factor (GM-CSF), is a protein secreted by macrophages, T cells, mast cells, endothelial cells and fibroblasts. It is a 22 kDa monomeric hematopoietic cytokine. GM-CSF-stimulated monocytes exhibit several anti-tumor behaviors. GM-CSF enhances the ability of macrophages to present antigen and initiate an immune response. It also stimulates monocytes to secrete large amounts of a soluble VEGF receptor, which binds to and inactivates VEGF.

The antibody specifically detected protein derived from human. It also recognizes tested samples containing GM-CSF in both ELISA and WB. This antibody shows no cross-reactivity with other tested cytokines.

Always prepare single-use aliquots planning use while receiving package. A small amount of antibody can be kept at 4^°C for daily use. For a long storage, recommend to keep them at -20^°C after adding an equal volume of glycerol in PBS. It will not lose activity over a year. Minimize freezing and thawing when use.