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GM-CSF Detection (CAT#: STEM-MB-0264-WXH)

Introduction

Granulocyte macrophage colony stimulating factor (GM-CSF), also called CSF-2, is mainly derived from T cells, monocytes, macrophages, endothelial cells, and fibroblasts. Among them, human GM-CSF is a 22 kD glycoprotein consisting of 127 amino acids. GM-CSF mainly acts on myeloid progenitor cells, exerts biological effects by binding with its high-affinity receptors. It rapidly enters the cell cycle to differentiate into granulocytes and macrophages, and finally becomes mature cells, which can prolong the life of mature cells and enhance the function of mature cells. It can not only promote the proliferation, differentiation and maturation of hematopoietic precursor cells, but also stimulate other cells to varying degrees, such as antigen-presenting cells (APC), fibroblasts, and keratinocytes.




Principle

GM-CSF is a polypeptide factor with a broad spectrum of effects, which has a proliferative effect on early hematopoietic progenitor cells. GM-CSF receptor(GM R) is a transmembrane glycoprotein, a member of the cytokine receptor superfamily. It consists of two subunits: α (GM Rα) and β (GM Rβ). They can be divided into extramembrane region, transmembrane region and cytoplasmic region. Among them, the α-subunit has ligand specificity, and can specifically bind to GM-CSF with a low affinity, but cannot transmit signals. Although the β subunit itself cannot bind to GM-CSF, it can form a receptor complex that binds to the ligand with high affinity with the α subunit and transmits the stimulation signal stimulated by the ligand, causing various biological behaviors of the cell. Because neither the α nor β subunits have tyrosine kinase domains, after the α subunits bind to the ligand, they must form a heterodimer with the β subunits through spatial allometry before they can stimulate the cells. Matrix tyrosine kinase is phosphorylated to transmit signals, so receptor dimerization is key to signal transduction.

Applications

GM-CSF mainly stimulates the growth and differentiation of bone marrow precursor cells.
GM-CSF has the function of lowering serum cholesterol, which can be used to treat myeloid cell proliferation syndrome.
GM-CSF plays a key role in the development and maturation of dendritic cells and the proliferation and activation of T cells, linking innate and adaptive immune responses.
GM-CSF is used to improve neutropenia in elderly patients with acute myeloid leukemia after induction chemotherapy.

Procedure

1. Process samples.
2. GM-CSF detection (qPCR, Enzyme-linked immunosorbent assay (ELISA), Flow cytometry).
3. Analysis results.

Notes

Sample Types- Serum, plasma, etc.

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