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概要
Interferon-gamma (IFN-γ), also known as type II interferon, is produced by T and NK cells, and in smaller amounts by dendritic cells and macrophages. IFN-γ is controlled by cytokines such as IL-12 and IL-18 secreted in response to infection (Schroder et al.). IFN-γ binds to a receptor complex and initiates signal transduction via the JAK/STAT pathway; this culminates in the transcription and activation of many genes that control a diverse array of immunological functions (de Weerd & Nguyen; Krause et al.). IFN-γ stimulates the antimicrobial and anti-tumor activity of macrophages, NK cells, and neutrophils (Billiau & Matthys) by promoting the activation of microbial effector functions such as production of reactive oxygen species, nitric oxide, and complement (Schroder et al.). IFN-γ enhances MHC class I and II expression in dendritic cells and mononuclear phagocytes, as well as the production of IL-12 by dendritic cells. In B cells, IFN-γ stimulates survival and growth in both mouse and human cells, and redirects B cells from proliferation towards differentiation. IFN-γ favors the development of Th1 vs Th2 cells and stimulates monocyte differentiation and function (Schroder et al.).
技术资料
| Document Type | 产品名称 | Catalog # | Lot # | 语言 |
|---|---|---|---|---|
| Product Information Sheet | Human Recombinant IFN-gamma | 78020, 78020.1, 78020.2 | All | English |
| Safety Data Sheet | Human Recombinant IFN-gamma | 78020, 78020.1, 78020.2 | All | English |
数据及文献
Data
(A) The biological activity of Human Recombinant IFN-gamma was tested by its ability to promote the cytotoxicity of HT-29 (HTB-38) cells.
Cytotoxicity was measured using a fluorometric assay method. The EC50 is defined as the effective concentration of the growth factor at
which cell death is at 50% of maximum. The EC50 for this effect is 0.035 ng/mL.
(B) 2 μg of Human Recombinant IFN-gamma was resolved with SDS-PAGE under reducing (+) and non-reducing (-) conditions and
visualized by Coomassie Blue staining. Human Recombinant IFN-gamma has a predicted molecular mass of 17 kDa.
