A Mouse Model System for Zika Virus Infection

IFN signaling

Type I IFN receptor binding and signal transduction.

By Gertrud U. Rey

Zika virus (ZIKV) infection causes microcephaly in newborns and is causally associated with Guillian–Barré syndrome in adults. To date, there are no drugs available to prevent or treat ZIKV infection. ZIKV vaccine research is challenging because adult immunocompetent mice are resistant to ZIKV infection and disease.

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TWiV 487: Milwaukee viral

At the Medical College of Wisconsin, Vincent talks with current and former members of the Department of Microbiology and Immunology about their work and their careers.

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A Lot of Buzz Around STING

By Gertrud U. Rey

Gertrud Rey is a trained virologist residing in Atlanta, Georgia. During the day, she works as a consultant in a biotech patent law firm, but spends much of her free time as a science communicator. She was a guest on TWiV 179 and 424.

The lack of a suitable animal model for human dengue virus infection and disease has presented considerable challenges for dengue virus vaccine research.

Chimpanzees, rhesus macaques, and the common marmoset, representing apes, Old World monkeys, and New World monkeys, respectively, have been used as model organisms to study dengue. However, although they are permissive for dengue virus infection, they do not develop overt disease. Having good animal models to understand the interaction between dengue virus and the host innate immune response is particularly important for vaccine development.

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TWiV 484: Float like a mimivirus STING like a bat

The TWiVumvirate discuss the giant Tupanvirus, with the longest tail in the known virosphere, and dampened STING dependent interferon activation in bats.

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Show notes at microbe.tv/twiv

Defective viral genomes and severe influenza

Defective influenza virus RNAsThe virulence of a virus – its capacity to cause disease – is determined by both viral and host factors. Even among healthy individuals, infection with a particular virus may have different outcomes ranging from benign to lethal. The study of influenza viruses that cause mild or fatal outcomes reveals that defective viral genomes play a role in determining viral virulence.

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TWiV 450: Ben tenOever and RNA out

Ben tenOever joins the TWiVoli to discuss the evolution of RNA interference and his lab’s finding that RNAse III nucleases, needed for the maturation of cellular RNAs, are an ancient antiviral RNA recognition platform in all domains of life.

 

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TWiV 430: The persistence of herpesvirus

The TWiX cabal discuss sexual transmission of Zika virus in mice, and how immune escape enables herpes simplex virus escape from latency.

You can find TWiV #430 at microbe.tv/twiv, or listen below.


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TWiV 428: Lyse globally, protect locally

The TWiVsters explain how superspreader bacteriophages release intact DNA from infected cells, and the role of astrocytes in protecting the cerebellum from virus infection.

You can find TWiV #428 at microbe.tv/twiv, or listen below.

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TWiV 426: I’m Axl, and I’ll be your cervid today

The sages of TWiV explain how chronic wasting disease of cervids could be caused by spontaneous misfolding of prion protein, and the role of the membrane protein Axl in Zika virus entry into cells.

You can find TWiV #426 at microbe.tv/twiv, or listen below.

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TWiV 412: WO, open the borders and rig the infection

The TWiVome reveal the first eukaryotic genes found in a bacteriophage of Wolbachia, and how DNA tumor virus oncogenes antagonize sensing of cytoplasmic DNA by the cell.

You can find TWiV #412 at microbe.tv/twiv, or listen below.

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