Key features and details
- Assay type: Sandwich (qualitative)
- Detection method: Colorimetric
- Sample type: Suspension cells
- Reacts with: Human
Product nameHuman Interferon Gamma ELISPOT Kit
See all Interferon gamma kits
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 Interferon gamma
Tested applicationsSuitable for: ELISpotmore details
Storage instructionsStore at +4°C. Please refer to protocols.
Components 1 x 96 tests 5 x 96 tests Biotinylated Human IFNγ Detection Antibody 1 vial 1 vial Bovine Serum Albumin 1 x 2g 1 x 2g IFNγ Pre-coated 96-well PDVF-bottomed plates 2 units 5 units Ready-to-use BCIP/NBT substrate buffer 1 x 11ml 2 x 25ml Streptavidin - Alkaline Phosphatase conjugated 1 x 10µl 1 x 50µl
FunctionProduced by lymphocytes activated by specific antigens or mitogens. IFN-gamma, in addition to having antiviral activity, has important immunoregulatory functions. It is a potent activator of macrophages, it has antiproliferative effects on transformed cells and it can potentiate the antiviral and antitumor effects of the type I interferons.
Tissue specificityReleased primarily from activated T lymphocytes.
Involvement in diseaseIn Caucasians, genetic variation in IFNG is associated with the risk of aplastic anemia (AA) [MIM:609135]. AA is a rare disease in which the reduction of the circulating blood cells results from damage to the stem cell pool in bone marrow. In most patients, the stem cell lesion is caused by an autoimmune attack. T-lymphocytes, activated by an endogenous or exogenous, and most often unknown antigenic stimulus, secrete cytokines, including IFN-gamma, which would in turn be able to suppress hematopoiesis.
Sequence similaritiesBelongs to the type II (or gamma) interferon family.
modificationsProteolytic processing produces C-terminal heterogeneity, with proteins ending alternatively at Gly-150, Met-157 or Gly-161.
- Information by UniProt
- IF 1
The Abpromise guarantee
Our Abpromise guarantee covers the use of ab62899 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.
ab62899 has not yet been referenced specifically in any publications.