Product Features

Product Name           Human IFN-gamma EasyTest™ ELISA Kit Assay Type                   Solid Phase Sandwich ELISA Format                           96-well strip plate Assay Process             One wash step, two incubations Assay Length              1.5 hours Sample Volume         Serum , Plasma, 50µL Detection Method    Colorimetric Sensitivity                   20 pg/mL Assay Range                81.9-20000 pg/mL Reactivity                     Human Cross-Reactivity       No cross-reactivity observed with available related molecules Gene Names               IFNG; IFG; IFI Gene ID                         3458 Swissprot ID               P01579

Recovery

Linearity

Standard Curve: Human IFN-gamma EasyTest™ ELISA Kit

Kit Components

• Pre-Coated 96-well Strip Microplate • Wash Buffer • Stop Solution • Assay Diluent • Standards • Bioaim human IFN-gamma mix • TMB One-Step Substrate

Protocol Outline

1. Prepare all reagents, samples and standards as instructed in the manual. 2. Add 50 µl of standard or sample to each well. 3. Add 50 µl of  Bioaim mix. 4. Incubate 1 h at RT. 5. Wash and add 100 µl of TMB One-Step Substrate Reagent to each well. 6. Incubate 15 min at RT. 7. Add 50 µl of Stop Solution to each well. 8. Read at 450 nm/570 nm.

Background

IFN-gamma (Interferon-gamma) is the prototype proinflammatory cytokine and is produced by a variety of immune cells under inflammatory conditions, notably by T cells and NK cells. FNγ is secreted by T helper cells , cytotoxic T cells and NK cells only. IFNγ is the only Type II interferon and it is serologically distinct from Type I interferons; it is acid-labile, while the type I variants are acid-stable. It plays a key role in host defense by promoting the development and activation of Th1 cells, chemoattraction and activation of monocytes and macrophages, upregulation of antigen presentation molecules, and immunoglobulin class switching in B cells. It also exhibits antiviral, antiproliferative, and apoptotic effects.

In addition, IFN-gamma functions as an anti-inflammatory mediator by promoting the development of regulatory T cells and inhibiting Th17 cell differentiation. IFN-gamma dimers signal through a receptor complex of two IFN-gamma R1 and two IFN-gamma R2 subunits.

Storage

The entire kit may be stored at -20°C for up to 1 year from the date of shipment. Avoid repeated freeze-thaw cycles. The kit may be stored at 4°C for up to 6 months. For extended storage, it is recommended to store at -80°C.

Regulatory Status      

Human IFN-gamma EasyTest™ ELISA Kit is for Research Use Only.