6533b838fe1ef96bd12a4289

RESEARCH PRODUCT

Human Enterovirus Group B Viruses Rely on Vimentin Dynamics for Efficient Processing of Viral Nonstructural Proteins.

Turkki PaulaLaajala MiraFlodström-tullberg MalinMarjomäki Varpu

subject

enterovirusvirusesDNA Helicasesapoptosispolyprotein processingViral Nonstructural ProteinsEnterovirus B HumanVirus-Cell InteractionsRNA Recognition Motif ProteinsvimentinA549 CellsProtein BiosynthesisHumansproteasesHSP90 Heat-Shock ProteinsPoly-ADP-Ribose Binding ProteinsRNA HelicasesHeLa Cells

description

A virus needs the host cell in order to replicate and produce new progeny viruses. For this, the virus takes over the host cell and modifies it to become a factory for viral proteins. Irrespective of the specific virus family, these proteins can be divided into structural and nonstructural proteins. Structural proteins are the building blocks for the new progeny virions, whereas the nonstructural proteins orchestrate the takeover of the host cell and its functions. Here, we have shown a mechanism that viruses exploit in order to regulate the host cell. We show that viral protein synthesis induces vimentin cages, which promote production of specific viral proteins that eventually control apoptosis and host cell death. This study specifies vimentin as the key regulator of these events and indicates that viral proteins have different fates in the cells depending on their association with vimentin cages.

10.1128/jvi.01393-19https://pubmed.ncbi.nlm.nih.gov/31619557