
Feature | Specification |
---|---|
Application | Protein Quantification |
Dynamic Range | 0.30 - 10,000 pg/mL |
Limit of Detection | 0.30 pg/mL |
Limit of Quantification | 0.95 pg/mL |
Sample Volume | 5 µL |
Human Interleukin 10 (IL-10) is a homodimer composed of two subunits of 18 kDa each. It is produced by various T-cell populations, monocytes, macrophages, and different cell types in the liver when stimulated by endogenous or exogenous factors such as stress, exotoxins, TNF-α, and catecholamines. IL-10 inhibits interferon synthesis in Th1 cell clones, monocytes, and macrophages. IL-10 also inhibits antigen presentation to T-cells and IL-12 production by monocytes. It also impairs the proliferation and cytokine synthesis of CD4+ T cells, without having a direct inhibitory effect on CD8+ T cells. On the other hand, IL-10 has a stimulatory effect on B cells, prevents apoptosis and enhances proliferation and differentiation of plasma cells, and inhibits the release of various chemokines by neutrophils. The main biological function of IL-10 is to limit and terminate the inflammatory responses, block proinflammatory cytokine secretion and regulate the differentiation and proliferation of several immune cells. IL-10 activity is mediated by the heteromeric IL-10 receptor (IL-10R), and signals through the tyrosine kinases JAK1 and TYK2, and STATs.
AlphaLISA technology allows the detection of molecules of interest in a no-wash, highly sensitive, quantitative assay. In an AlphaLISA assay, a biotinylated anti-analyte antibody binds to the Streptavidin-coated Donor beads while another anti-analyte antibody is conjugated to AlphaLISA Acceptor beads. In the presence of the analyte, the beads come into close proximity. The excitation of the Donor beads causes the release of singlet oxygen molecules that triggers a cascade of energy transfer in the Acceptor beads, resulting in a sharp peak of light emission at 615 nm.
The AlphaLISA assay is based on an AlphaLISA sandwich immunoassay involving a biotinylated anti-analyte antibody bound to Streptavidin-coated AlphaLISA Donor beads and an anti-analyte antibody conjugated to AlphaLISA Acceptor beads. Both antibodies are directed against the analyte of interest. In the presence of the target, both antibodies bind to analyte and the beads come into proximity. The excitation of the Donor beads provokes the release of singlet oxygen molecules that triggers a cascade of energy transfer within the Acceptor beads, resulting in emission with λmax at 615 nm. The intensity of the signal is directly proportional to the concentration of analyte present in the sample.
The AlphaLISA assay can be run in a 96- or 384-well detection plate (50 µL final). As described here, samples or standards are dispensed directly into the assay plate for the detection of the analyte of interest by AlphaLISA reagents. No washing steps are needed. The protocol can be further miniaturized or upscaled by simply resizing each addition volume proportionally.
Application |
Protein Quantification
|
---|---|
Automation Compatible |
Yes
|
Brand |
AlphaLISA
|
Detection Modality |
Alpha
|
Dynamic Range |
0.30 - 10,000 pg/mL
|
Limit of Detection |
0.30 pg/mL
|
Limit of Quantification |
0.95 pg/mL
|
Product Group |
Kit
|
Sample Volume |
5 µL
|
Shipping Conditions |
Shipped in Blue Ice
|
Target |
IL-10
|
Target Class |
Cytokines
|
Target Species |
Human
|
Technology |
Alpha
|
Therapeutic Area |
Autoimmunity
Cardiovascular
Immuno-oncology
Neuroscience
Oncology
|
Unit Size |
500 assay points
|
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