Temporal dynamics of adenovirus 5 gene expression in normal human cells

PLoS One. 2019 Jan 24;14(1):e0211192. doi: 10.1371/journal.pone.0211192. eCollection 2019.

Abstract

Adenovirus executes a finely tuned transcriptional program upon infection of a cell. To better understand the temporal dynamics of the viral transcriptional program we performed highly sensitive digital PCR on samples extracted from arrested human lung fibroblasts infected with human adenovirus 5 strain dl309. We show that the first transcript made from viral genomes is the virus associated non-coding RNA, in particular we detected abundant levels of virus associated RNA II four hours after infection. Activation of E1 and E4 occurred nearly simultaneously later in infection, followed by other early genes as well as late genes. Our study determined that genomes begin to replicate between 29 and 30 hours after infection. This study provides a comprehensive view of viral mRNA steady-state kinetics in arrested human cells using digital PCR.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adenovirus E1 Proteins / genetics
  • Adenovirus E1 Proteins / metabolism
  • Adenovirus E4 Proteins / genetics
  • Adenovirus E4 Proteins / metabolism
  • Adenovirus Early Proteins / genetics
  • Adenovirus Early Proteins / metabolism
  • Adenoviruses, Human / genetics*
  • Fibroblasts / virology*
  • Gene Expression
  • Gene Expression Regulation, Viral*
  • Genome, Viral
  • Humans
  • Lung / pathology
  • RNA, Viral / analysis
  • RNA, Viral / metabolism
  • Time Factors
  • Transcriptional Activation
  • Virus Replication

Substances

  • Adenovirus E1 Proteins
  • Adenovirus E4 Proteins
  • Adenovirus Early Proteins
  • RNA, Viral

Grants and funding

This work was supported by Natural Sciences and Engineering Research Council (Grant number: RGPIN/435375-2013, http://www.nserc-crsng.gc.ca/Professors-Professeurs/Grants-Subs/index_eng.asp) to PP. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.