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Human endogenous retroviruses: transposable elements with potential?

P N Nelson1, P Hooley, D Roden

  • 1Research Institute in Healthcare Science, University of Wolverhampton, UK. P.N.NELSON@wlv.ac.uk

Clinical and Experimental Immunology
|September 18, 2004
PubMed
Summary
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Human endogenous retroviruses (HERVs), remnants of ancient infections, are integrated into our genome. This review explores how HERVs may trigger harmful immune responses through mechanisms like molecular mimicry.

Area of Science:

  • Genomics
  • Immunology
  • Virology

Background:

  • Human endogenous retroviruses (HERVs) are retroelements comprising a substantial portion of the human genome.
  • These elements are integrated into the germ line and inherited across generations.
  • Their persistence, including elements like long-terminal repeats, poses potential risks.

Purpose of the Study:

  • To review HERVs within the broader context of transposable elements.
  • To survey HERVs concerning their roles as superantigens and molecular mimics.
  • To explore the potential for HERVs to elicit adverse immune reactions.

Main Methods:

  • Literature review of HERVs and related retroelements.
  • Analysis of HERV structures and functions, including superantigens and molecular mimics.

Related Experiment Videos

  • Examination of potential immune system interactions.

    • Main Results:

    • HERVs are ancient retroviral sequences integrated into the human genome.
    • Specific HERV-encoded proteins can act as superantigens or molecular mimics.
    • These mechanisms are implicated in potentially harmful immune responses.

    Conclusions:

    • HERVs represent a significant genomic component with potential biological impact.
    • Superantigens and molecular mimicry are key mechanisms by which HERVs may dysregulate immune responses.
    • Further research into HERV-mediated immunity is warranted.