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Human GM-CSF Single Plex Kit (Flow Cytometry Bead Assay)

Human GM-CSF Single Plex Kit (Flow Cytometry Bead Assay)

Catalog Number: S0Q3011 Reactivity: Human Conjugation: Brand: Starter
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Regular price $335 USD
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Product Details

Product Specification


Antigen GM-CSF
Reactivity Human
Stability & Storage

12 months from date of receipt / reconstitution, 2 to 8°C as supplied.

Kit


Precision Intra-assay: 2.44%;
Inter-assay: 7.10%
Sample type Serum; Plasma; Cell culture supernatant
Assay type Sandwich (quantitative)
Sensitivity 0.64 pg/mL
Range 2.33 - 10000 pg/mL
Recovery 76.11% - 101.52%
Assay time 70 minutes
Species reactivity Human

Background

GM-CSF is a hematopoietic growth factor secreted by macrophages, T cells, mast cells, natural killer cells, endothelial cells and fibroblasts that functions as a cytokine. GM-CSF stimulates the development of neutrophils and macrophages, and promotes the proliferation and development of early erythroid megakaryocytic and eosinophilic progenitor cells. GM-CSF binds to receptor heterodimers consisting of a GM-CSF-specific alpha chain and the common beta chain that is shared by the high-affinity receptors for IL-3 and GM-CSF.

Picture

CBA

Standard curve
Example of GM-CSF standard curve in Assay Diluent .

Recovery
Within the detection range, the human GM-CSF protein was added to different matrices at high, medium, low concentrations.
The matrices used in these experiments were diluted 2-fold with the assay buffer before the addition of the cytokine proteins.
The results were compared with those of samples that had the same concentration of cytokines added in the assay buffer.

Quantifiction of human PBMC
Stimulated sample: Human peripheral blood mononuclear cells (PBMCs) were stimulated with 10 ng/mL PMA and 1μg/mL Iono for 24h, and the average concentration of GM-CSF in the supernatant was measured to be 1367.65 pg/mL.
Unstimulated sample: Human PBMCs were cultured for 24h, and the average concentration of GM-CSF in the supernatant was measured to be 0.002 pg/mL.

Linearity
The high-concentration human GM-CSF protein was serially diluted using plasma, serum and cell culture supernatant matrices respectively.
The matrices used in these experiments were diluted 2-fold with the assay buffer before the addition of the cytokine proteins.
Then, the concentration of human GM-CSF was determined and interpolated based on the target standard curve, and the sample dilution was corrected.