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Related Experiment Videos

Transgenic mouse model for echovirus myocarditis and paralysis.

Scott A Hughes1, Harshwardhan M Thaker, Vincent R Racaniello

  • 1Departments of Microbiology and Pathology, Columbia University College of Physicians and Surgeons, 701 West 168th Street, New York, NY 10032, USA.

Proceedings of the National Academy of Sciences of the United States of America
|December 16, 2003
PubMed
Summary

Researchers developed a new mouse model for studying echovirus infections. These transgenic mice expressing human very late antigen 2 are susceptible to echovirus, showing disease symptoms relevant to human infections.

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Area of Science:

  • Virology
  • Immunology
  • Neuroscience

Background:

  • Echoviruses are linked to serious human diseases like meningitis, paralysis, and heart conditions.
  • A lack of suitable animal models hinders the study of echovirus pathogenesis.

Purpose of the Study:

  • To establish a functional animal model for investigating echovirus pathogenesis.
  • To understand the role of human very late antigen 2 in echovirus susceptibility and disease.

Main Methods:

  • Generation of transgenic mice expressing human integrin very late antigen 2 (a receptor for echovirus type 1).
  • Intracerebral inoculation of newborn and adolescent transgenic mice with echovirus.
  • Clinical observation and pathological examination of infected mice, including neurological and cardiac tissues.

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Main Results:

  • Newborn transgenic mice infected with echovirus developed paralysis and wasting, with observed cerebral damage.
  • Adolescent transgenic mice exhibited wasting and myocarditis, but not paralysis.
  • Nontransgenic mice showed no disease upon echovirus infection, highlighting the model's specificity.

Conclusions:

  • Human very late antigen 2 transgenic mice serve as a valuable model for studying echovirus pathogenesis.
  • The model allows for the investigation of echovirus-induced neurological and cardiac diseases.
  • This breakthrough facilitates research into echovirus infections and potential therapeutic strategies.