Proteasome activity is required for reovirus entry into cells

J Virol. 2023 Oct 31;97(10):e0134823. doi: 10.1128/jvi.01348-23. Epub 2023 Oct 13.

Abstract

Due to their limited genetic capacity, viruses are reliant on multiple host systems to replicate successfully. Mammalian orthoreovirus (reovirus) is commonly used as a model system for understanding host-virus interactions. In this study, we identify that the proteasome system, which is critical for cellular protein turnover, affects reovirus entry. Inhibition of the proteasome using a chemical inhibitor blocks reovirus uncoating. Blocking these events reduces subsequent replication of the virus. This work identifies that additional host factors control reovirus entry.

Keywords: entry; reovirus.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Animals
  • Mammals
  • Proteasome Endopeptidase Complex*
  • Reoviridae* / physiology
  • Virus Internalization*

Substances

  • Proteasome Endopeptidase Complex