Key features and details
- Assay type: Sandwich (qualitative)
- Detection method: Colorimetric
- Sample type: Suspension cells
- Reacts with: Human
Product nameHuman IL-12 p70 ELISPOT Kit
Sample typeSuspension cells
Assay typeSandwich (qualitative)
Assay durationMultiple steps standard assay
Species reactivityReacts with: Human
The ELISPOT assay is designed to enumerate cytokine producing cells in a single cell suspension. This method has the advantage of requiring a minimum of in-vitro manipulations allowing cytokine production analysis as close as possible to in-vivo conditions in a highly specific way. This technique is designed to determine the frequency of cytokine producing cells under a given stimulation, and the follow-up of such frequency during a treatment and/or a pathological state. ELISPOT assay constitutes an ideal tool in the TH1 / TH2 response, vaccine development, viral infection monitoring and treatment, cancerology, infectious diseases, autoimmune diseases and transplantation.
Abcam ELISPOT assay is based on sandwich immuno-enzyme technology. Cell secreted cytokines or soluble molecules are captured by coated antibodies avoiding diffusion in supernatant, protease degradation or binding on soluble membrane receptors. After cell removal, the captured cytokines are revealed by tracer antibodies and appropriate conjugates.
After cell stimulation, locally produced cytokines are captured by a specific monoclonal antibody. After cell lysis, trapped cytokine molecules are revealed by a secondary biotinylated detection antibody, which is in turn recognised by streptavidin conjugated to alkaline phosphatase. PVDF-bottomed-well plates are then incubated with BCIP/NBT substrate. Colored "purple" spots indicate cytokine production by individual cells.
Recognizes natural human IL-12, specific to p70 heterodimer.
Tested applicationsSuitable for: ELISpotmore details
Storage instructionsStore at +4°C. Please refer to protocols.
Components 1 x 96 tests 5 x 96 tests Bovine Serum Albumin 1 x 0.2g 1 x 1g IL-12 p70 Biotinylated Detection Antibody 1 x 0.1ml 1 x 0.55ml Human IL-12 Pre-coated 96-well PDVF-bottomed plates 1 unit 5 units Ready-to-use BCIP/NBT substrate buffer 1 x 10ml 1 x 50ml Streptavidin - Alkaline Phosphatase conjugated 1 x 10µl 1 x 50µl
RelevanceIL12A is a subunit of a cytokine that acts on T and natural killer cells, and has a broad array of biological activities. The cytokine is a disulfide-linked heterodimer composed of the 35-kD subunit encoded by this gene, and a 40-kD subunit that is a member of the cytokine receptor family. This cytokine is required for the T-cell-independent induction of interferon (IFN)-gamma, and is important for the differentiation of both Th1 and Th2 cells. The responses of lymphocytes to this cytokine are mediated by the activator of transcription protein STAT4. Nitric oxide synthase 2A (NOS2A/NOS2) is found to be required for the signaling process of this cytokine in innate immunity. IL12B is a cytokine that can act as a growth factor for activated T and NK cells, enhance the lytic activity of NK/lymphokine-activated killer cells, and stimulate the production of IFN-gamma by resting PBMC.
- IL 12 subunit p40
The Abpromise guarantee
Our Abpromise guarantee covers the use of ab62939 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
Use at an assay dependent dilution.
Use at an assay dependent dilution.
ab62939 has not yet been referenced specifically in any publications.