Human IL2 kit
No-wash kit to quantify released Human IL2
The HTRF human TNFα kit is designed for the quantification of human TNF alpha release in cell supernatant.
TNF alpha is a cytokine mainly produced by macrophages, T cells, and neutrophils. TNF alpha acts as a chemoattractant for neutrophils, and promotes infiltration and activation at inflammation sites. TNF alpha is involved in several cancer types for its ability to promote angiogenesis and cell proliferation, as well as to inhibit apoptosis.
Assessment of serum samples often requires enhanced sensitivity. In some cases, AlphaLISA assays may have sufficient sensitivity to enable the detection of low levels of analytes in serum or plasma. Check out the Human TNFα AlphaLISA kit’s analytical performances for more information or learn more about AlphaLISA. When assaying, always follow the recommended protocol and avoid highly haemolyzed samples.
The 4 Parameter Logistic (4PL) curve is commonly recommended for fitting an ELISA standard curve. This regression enables the accurate measurement of an unknown sample across a wider range of concentrations than linear analysis, making it ideally suited to the analysis of biological systems like cytokine releases.
To fully understand how to deal with HTRF data processing and also 4PL 1/y² fitting, please visit this page.
Cisbio also worked with Myassays.com to help you in your data analysis. By clicking on this link, you’ll be able to access a free online software to run your TNF alpha analysis.
Sample size | 16 µL |
Final assay volume | 20 µL |
Kit components | Lyophilized standard, frozen detection antibodies, buffers &protocol. |
LOD &LOQ (in Diluent) | 5 pg/mL &29 pg/mL |
Range | 29 2,500 pg/mL |
Time to result | 2h at RT |
Calibration | NIBSC (12/154) value (IU/mL) = 0,1 x HTRF hTNFa value (pg/mL) |
Species | Human only |
Intra-assay (n=24)
Sample | Mean [TNFα] (pg/mL) | CV |
1 | 113 | 6% |
2 | 344 | 3% |
3 | 1399 | 6% |
Mean CV | 5% |
Each of the 3 samples was measured 24 times, and % CV was calculated for each sample.
Inter-assay (n=4)
Sample | [TNFa] (pg/mL) | Mean (delta R) | CV |
---|---|---|---|
1 | 78 | 272 | 11% |
2 | 312 | 911 | 7% |
3 | 1250 | 2894 | 6% |
Mean CV | 6% |
Each of the samples was measured in 4 different experiments, and % CV was calculated for each sample.
The excellent % of recovery obtained from these experiments show the good linearity of the assay.
Sample | Dilution factor | [TNFα] expected (pg/mL) | [TNFα] detected (pg/mL) | Recovery |
1 | 1 | - | 2336 | - |
3 | 782 | 898 | 115% | |
4.3 | 543 | 567 | 104% | |
10.7 | 218 | 252 | 116% | |
Mean | 112% | |||
2 | 1 | - | 449 | - |
3 | 150 | 179 | 119% | |
Mean | 119% |
Sample | [TNFα] added (pg/mL) | [TNFα] expected (pg/mL) | [TNFα] detected (pg/mL) | Recovery |
1 | 1,250 | 1,555 | 1,523 | 98% |
2 | 1,250 | 1,874 | 1,892 | 101% |
THP1 cells plated at 100 kcells/well were incubated with increasing concentrations of JTE 607 for 18h, then stimulated for 3 h with 2 µg/mL LPS. 16 µL of supernatants were then transferred into a white detection plate (384 low volume) to be analyzed by the Human TNFa Assay.
In collaboration with CNRS - Scientific Presentations
In collaboration with GSK - Scientific Presentations
Monitor immune regulation the simple way - Flyers
HTRF solutions for NASH - Flyers
HTRF solutions for each cell type - Flyers
Signaling in the immune system - Brochures
In collaboration with Molecular Devices - Application Notes
In collaboration with Blood assay solution - Application Notes
One sample to measure them all - Posters
Perform and optimize cytokine assays on PBMC - Technical Notes
Guideline for PBMC freezing - Technical Notes
Featuring a panel of experts - Videos
What to expect at the bench - Videos
62HTNFAPEG-62HTNFAPEH - Product Insert
62HTNFAPET - Product Insert
Tecan - Application Notes
Molecular Devices - Application Notes
A fun video introducing you to cytokines assays with HTRF - Videos
cGAS-STING signaling pathway from A to Z - Brochures
All your HTRF assays in one document! - Catalog
General principles of HTRF - Guides
Setting up a successful cytokine assay - Guides
For researcher working on checkpoint inhibitors - Application Notes
This leaflet presents the analytical performances of each assay - Brochures
Get the brochure about technology comparison. - Brochures
Insight into the diversity of cells & signaling pathways - Guides
The essential guide for extending your knowledge on the molecular mechanisms of neurodegenerative diseases - Guides
62HTNFAPEG - Safety Data Sheet
62HTNFAPEG - Safety Data Sheet
62HTNFAPEG - Safety Data Sheet
62HTNFAPEG - Safety Data Sheet
62HTNFAPEG - Safety Data Sheet
62HTNFAPEG - Safety Data Sheet
62HTNFAPEG - Safety Data Sheet
62HTNFAPEH - Safety Data Sheet
62HTNFAPEH - Safety Data Sheet
62HTNFAPEH - Safety Data Sheet
62HTNFAPEH - Safety Data Sheet
62HTNFAPEH - Safety Data Sheet
62HTNFAPEH - Safety Data Sheet
62HTNFAPEH - Safety Data Sheet
62HTNFAPEJ - Safety Data Sheet
62HTNFAPEJ - Safety Data Sheet
62HTNFAPEJ - Safety Data Sheet
62HTNFAPEJ - Safety Data Sheet
62HTNFAPEJ - Safety Data Sheet
62HTNFAPEJ - Safety Data Sheet
62HTNFAPEJ - Safety Data Sheet
62HTNFAPET - Safety Data Sheet
62HTNFAPET - Safety Data Sheet
62HTNFAPET - Safety Data Sheet
62HTNFAPET - Safety Data Sheet
62HTNFAPET - Safety Data Sheet
62HTNFAPET - Safety Data Sheet
62HTNFAPET - Safety Data Sheet