AI Article Synopsis

  • Existing mouse models fail to accurately represent the symptoms of lethal Ebola virus infection, making it difficult to study the disease's pathogenesis in typical laboratory settings.
  • Researchers found distinct disease responses in mice from the Collaborative Cross panel, ranging from complete resistance to severe symptoms leading to death.
  • The study suggests that genetic variations influence susceptibility to Ebola hemorrhagic fever, with specific alleles impacting inflammatory responses and immune cell behavior.

Article Abstract

Existing mouse models of lethal Ebola virus infection do not reproduce hallmark symptoms of Ebola hemorrhagic fever, neither delayed blood coagulation and disseminated intravascular coagulation nor death from shock, thus restricting pathogenesis studies to nonhuman primates. Here we show that mice from the Collaborative Cross panel of recombinant inbred mice exhibit distinct disease phenotypes after mouse-adapted Ebola virus infection. Phenotypes range from complete resistance to lethal disease to severe hemorrhagic fever characterized by prolonged coagulation times and 100% mortality. Inflammatory signaling was associated with vascular permeability and endothelial activation, and resistance to lethal infection arose by induction of lymphocyte differentiation and cellular adhesion, probably mediated by the susceptibility allele Tek. These data indicate that genetic background determines susceptibility to Ebola hemorrhagic fever.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4241145PMC
http://dx.doi.org/10.1126/science.1259595DOI Listing

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