Unlock Exclusive Discounts & Flash Sales! Click Here to Join the Deals on Every Wednesday!

IFN-γ Detection (CAT#: STEM-MB-0269-WXH)

Introduction

According to the different primary structure of interferon protein, it is divided into three types of α, β and γ. Interferon gamma (IFN-γ) is produced by immune lymphocytes. The gene structure contains introns and plays an important role in the adaptive immune response. IFN-γ is a multipotent cytokine that can promote macrophage activation, mediate antiviral and antibacterial immune responses, enhance antigen presentation, activate the innate immune system, coordinate the interaction of lymphocytes and endothelial cells, regulate the balance between Th1 and Th2 cells and regulate cell proliferation and apoptosis. In the adaptive immune response, IFN-γ is produced by CD4+ helper T cells (Th1) and CD8+ cytotoxic T cells (CTL) when stimulated by antigens presented by the major histocompatibility complex (MHC). In the innate immune response, IFN-γ is produced when natural killer cells (NK cells) are stimulated by interleukin 12 (IL-12) and interleukin 18 (IL-18).




Principle

IFN-γ regulates the immune response by activating signaling pathways. IFN-γ binds to the interferon-gamma receptor(IFNGR)to cause dimerization of the receptor. Two IFNGR1 chains are combined with one IFN-γ dimer, and then they are combined with two IFNGR2 chains. The complex induces conformational changes and causes JAK1 and JAK2 to undergo phosphorylation and activation, which makes STAT1 phosphorylate. Phosphorylated STATA1 assembles into a dimer and entry into the nucleus. The STAT1 dimer binds to gamma activated sequence (GAS) to initiate transcription of the downstream target gene, thereby activating the cellular immune response. In addition to the JAK-STAT1 pathway, IFN-γ can also activate the MAP kinase pathway, the PI3-K pathway, the Raf-MEK-MAPK pathway, and the nuclear factor kappa-B (NF-κB) pathway linked via MyD88.

Applications

Promote macrophage activation.
Mediate antiviral and antibacterial immune responses.
Enhance antigen presentation.
Activate the innate immune system.
Coordinate the interaction of lymphocytes and endothelial cells.
Regulate the balance between Th1 and Th2 cells.
Regulate cell proliferation and apoptosis.

Procedure

1. Process samples.
2. IFN-γ detection (qPCR, Enzyme-linked immunosorbent assay (ELISA), Flow cytometry).
3. Analysis results.

Notes

Serum, buffered solution or cell culture medium, etc.

Other recommended products

Advertisement