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interferon

File:1RH2_Recombinant_Human_Interferon-Alpha_2b-01.png · Wikimedia Commons · See Wikimedia Commons

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interferon

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Also known as IFN, interferons

Interferons (IFNs, ) are a group of signaling proteins made and released by host cells in response to the presence of several viruses. In a typical scenario, a virus-infected cell will release interferons causing nearby cells to heighten their anti-viral defenses.

AI overview

Interferons are proteins that your body's cells produce and release when they detect a virus, acting as a chemical alarm system. Once released, these proteins warn nearby cells to boost their defenses against the virus, helping your body fight off the infection.

AI-generated from the Wikipedia summary — may contain errors.

Key facts

Protein family.Symbol
IL28A
Protein family.Name
Interferon type III (λ)
Protein family.image
Image:1HIG Interferon-Gamma01.png
Protein family.caption
The three-dimensional structure of human interferon gamma ()
Protein family.Pfam
PF15177
Protein family.InterPro
IPR029177
Protein family.SMART
SM00076
Protein family.Prosite
PDOC00225
Protein family.SCOP
d1d9ca_
Protein family.CATH
3og6A00
Protein family.CDD
cd00095

via Wikipedia infobox

Research

251,453 papers

via PubMed

Wikidata facts

Image
1RH2 Recombinant Human Interferon-Alpha 2b-01.png
Show 1 more fact
name
interferons
Sources (6)

via Wikidata · CC0

~24 min read

Article

15 sections
Contents
  • Types of interferon
  • Function
  • Induction of interferons
  • Downstream signaling
  • Viral resistance to interferons
  • Coronavirus response
  • Interferon therapy
  • Diseases
  • Drug formulations
  • History
  • Human interferons
  • Teleost fish interferons
  • References
  • Further reading
  • External links

Interferons (IFNs, ) are a group of signaling proteins made and released by host cells in response to the presence of several viruses. In a typical scenario, a virus-infected cell will release interferons causing nearby cells to heighten their anti-viral defenses.

IFNs belong to the large class of proteins known as cytokines, molecules used for communication between cells to trigger the protective defenses of the immune system that help eradicate pathogens. Interferons are named for their ability to "interfere" with viral replication by protecting cells from virus infections. However, virus-encoded genetic elements have the ability to antagonize the IFN response, contributing to viral pathogenesis and viral diseases. IFNs also have various other functions: they activate immune cells, such as natural killer cells and macrophages, and they increase host defenses by up-regulating antigen presentation by virtue of increasing the expression of major histocompatibility complex (MHC) antigens. Certain symptoms of infections, such as fever, muscle pain and "flu-like symptoms", are also caused by the production of IFNs and other cytokines.

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