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IFN-α Detection (CAT#: STEM-MB-0268-WXH)

Introduction

Interferon-alpha (IFN-α) is a group of structurally similar, functionally similar low molecular glycoproteins produced by antiviral response when the immune cells are infected with the virus. There are many IFN-α subtypes with molecular weights ranging from 15 to 21 kDa. IFN-α mainly have three functions: broad-spectrum antiviral effect, immunomodulatory effect, and anti-tumor effect, but the relative biological activity may be different. Since IFN-α has various anti-proliferative and anti-tumor activities, it is one of the most commonly used cytokine treatments for cancer patients with hairy cell leukemia, kidney cancer, Kaposi's sarcoma and other malignant tumors. Under physiological conditions, low levels of IFN-a can be detected. However, in infections and various pathological conditions, its production is significantly enhanced, making IFN-α a major disease marker.




Principle

Interferon-α (IFN-α), a pro-inflammatory cytokine, currently has at least 23 genes found clustered in the 9p22 region of human chromosomes with a total length of 1-2 kb. The gene structure consists of a 5' non-coding region, a secretion signal peptide, an interferon polypeptide, and a 3' non-coding region. About 60% of the IFN-α region constitutes five α-helices, and further forms a globular protein with two disulfide bonds, which is important for the correct folding and biological activity of IFN-α.
The IFN-α gene is usually induced to be expressed, that is, the IFN-α gene is not expressed under normal conditions. IFN-α gene is induced when stimulated by stimulating factors including viruses, lipopolysaccharides, polypeptides, and dsRNA.

Applications

IFN-α mainly have three functions: broad-spectrum antiviral effect, immunomodulatory effect, and anti-tumor effect.

Procedure

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

Notes

Serum, buffered solution or cell culture medium, etc.

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