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Related Concept Videos

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Retroviruses are RNA viruses that have been shown to cause cancers in diverse species, including chickens, mice, cats, and monkeys. The RNA genomes of these viruses are first reverse-transcribed into single and then double-stranded DNA (dsDNA) copies. This dsDNA called proviral DNA then integrates into the host genome. Subsequently, the host cell transcribes the proviral DNA in concert with the chromosomal DNA. This leads to the production of viral RNA and proteins that assemble at the host...
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Updated: Oct 16, 2025

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The type I interferonopathies: 10 years on.

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An effective immune system relies on detecting foreign nucleic acids. Failures in distinguishing self from non-self DNA and RNA can trigger harmful inflammation, impacting human health.

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Area of Science:

  • Immunology
  • Infectious Disease
  • Genetics

Background:

  • Viral nucleic acid detection is crucial for innate immunity against microbial invasion.
  • Efficient discrimination between host and pathogen DNA/RNA is vital for cellular homeostasis.
  • Type I interferon signaling is central to antiviral defense.

Purpose of the Study:

  • To review advancements in understanding inborn errors of immunity related to nucleic acid sensing.
  • To explore the role of self versus non-self discrimination failures in triggering antiviral responses.
  • To discuss the significance of type I interferon signaling in human health and disease.

Main Methods:

  • Review of scientific literature on Mendelian inborn errors of immunity.
  • Analysis of studies investigating nucleic acid sensing pathways.
  • Examination of type I interferon signaling dysregulation.

Main Results:

  • Failures in self vs. non-self discrimination can lead to autoimmune responses triggered by host nucleic acids.
  • Upregulation of type I interferon signaling is a hallmark of specific Mendelian inborn errors of immunity.
  • These rare disorders have significantly advanced the understanding of innate immunity.

Conclusions:

  • Inborn errors of immunity highlight the critical role of nucleic acid recognition in maintaining health.
  • Type I interferon signaling is a key pathway implicated in both defense and autoinflammation.
  • Continued research in this area promises further insights into immune system regulation and disease.