From the European Society for Clinical Virology 2022 Conference in Manchester UK, Vincent speaks with Richard Knight about prion diseases and the outbreak of bovine spongiform encephalitis that led to cases of variant Creutzfeldt-Jakob disease in humans. Host: Vincent Racaniello Guest: Richard Knight Click arrow to playDownload TWiV 950 (68 MB .mp3, 114 min)Subscribe (free): Apple Podcasts, Google Podcasts, RSS, email Become …
TWiV revisits chronic wasting disease of cervids and the ability of the prions to infect meadow voles and raccoons, and the suggestion that stochastic assembly of influenza virus particles may play a role in phenotypic diversity.
by Gertrud U. Rey Transmissible spongiform encephalopathies (TSEs) include a variety of fatal neurodegenerative diseases caused by infectious proteins called prions. Although prions are not viruses, their ability to self-propagate without a nucleic acid intermediate has always fascinated virologists, causing them to adopt prions into their repertoire of pathogenic agents. Common TSEs comprise scrapie in …
Transmissible spongiform encephalopathies (TSEs) are rare, but always fatal, neurodegenerative disorders of humans and other mammals. They are characterized by long incubation periods, spongiform changes in the brain associated with loss of neurons, and the absence of host responses. TSEs are caused by infectious proteins called prions. Insight into how prions cause TSEs comes from the observation that …
Bacteria do not develop transmissible spongiform encephalopathies, but they have been found to produce prions – proteins that can adopt alternative conformations with different functions. Prion diseases, a frequent topic on this blog, are caused by misfolding of a normal cellular prion protein (illustrated; image copyright ASM Press). Prion proteins are found in other organisms, where the alternative conformation …
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. [powerpress url=”http://traffic.libsyn.com/twiv/TWiV426.mp3″] Click arrow to play Download TWiV 426 (66 MB .mp3, 110 min) Subscribe …
TWiV 426: I’m Axl, and I’ll be your cervid today Read More »
