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Recombinant human GM-CSF (Cat.NO. HZ-1002) stimulates proliferation of TF-1 cell line (human erythroleukemic cell line) in a dose-dependent manner (blue curve, refer to bottom X-left Y). The activity of human GM-CSF (0.2 ng/mL HZ-1002) is neutralized by mouse anti-human GM-CSF monoclonal antibody 69003-1-Ig at serial dose (red curve, refer to top X-right Y). The ND50 is typically 1.5-4 μg/mL.
Granulocyte-macrophage colony-stimulating factor (GM-CSF), also known as colony-stimulating factor 2 (CSF2), is a monomeric glycoprotein secreted by macrophages, T cells, mast cells, natural killer cells, endothelial cells and fibroblasts. GM-CSF is a hematopoietic growth factor that stimulates the development of early erythroid megakaryocytic and eosinophilic progenitor cells (PMID 2990035). GM-CSF stimulates stem cells to produce granulocytes (neutrophils, eosinophils, and basophils) and monocytes (PMID 3021817, 2984574, 6390681).
This antibody is used to Block/Neutralize GM-CSF protein.