Remote activation of host cell DNA synthesis in uninfected cells signalled by infected cells in advance of virus transmission
Author(s)
O'Hare, PF
serwa
hennig
Schmidt, N
Marchetti, M
Type
Journal Article
Abstract
Viruses modulate cellular processes and metabolism in diverse ways, but these are almost universally studied in the infected cell itself. Here, we study spatial organization of DNA synthesis during multiround transmission of herpes simplex virus (HSV) using pulse-labeling with ethynyl nucleotides and cycloaddition of azide fluorophores. We report a hitherto unknown and unexpected outcome of virus-host interaction. Consistent with the current understanding of the single-step growth cycle, HSV suppresses host DNA synthesis and promotes viral DNA synthesis in spatially segregated compartments within the cell. In striking contrast, during progressive rounds of infection initiated at a single cell, we observe that infection induces a clear and pronounced stimulation of cellular DNA replication in remote uninfected cells. This induced DNA synthesis was observed in hundreds of uninfected cells at the extended border, outside the perimeter of the progressing infection. Moreover, using pulse-chase analysis, we show that this activation is maintained, resulting in a propagating wave of host DNA synthesis continually in advance of infection. As the virus reaches and infects these activated cells, host DNA synthesis is then shut off and replaced with virus DNA synthesis. Using nonpropagating viruses or conditioned medium, we demonstrate a paracrine effector of uninfected cell DNA synthesis in remote cells continually in advance of infection. These findings have significant implications, likely with broad applicability, for our understanding of the ways in which virus infection manipulates cell processes not only in the infected cell itself but also now in remote uninfected cells, as well as of mechanisms governing host DNA synthesis.
Date Issued
2015-11-01
Date Acceptance
2015-08-26
Citation
Journal of Virological Methods, 2015, 89 (21), pp.11107-11115
ISSN
0166-0934
Publisher
Elsevier
Start Page
11107
End Page
11115
Journal / Book Title
Journal of Virological Methods
Volume
89
Issue
21
Copyright Statement
Copyright © 2015, Schmidt et al. This is an open-access article distributed under
the terms of the Creative Commons Attribution 3.0 Unported license.
the terms of the Creative Commons Attribution 3.0 Unported license.
License URL
Sponsor
Wellcome Trust
Medical Research Council (MRC)
Identifier
PII: JVI.01950-15
Grant Number
093643/Z/10/Z
MR/L000148/1
Subjects
Science & Technology
Life Sciences & Biomedicine
Virology
BINDING-PROTEIN
INTRACELLULAR-LOCALIZATION
REPLICATION COMPARTMENTS
HUMAN CYTOMEGALOVIRUS
S-PHASE
CYCLE
ACCUMULATION
PERTURBATION
EXPRESSION
INHIBITOR
Animals
Azides
Bacterial Proteins
Cell Line
Cercopithecus aethiops
DNA Replication
Herpes Simplex
Host-Pathogen Interactions
Humans
Luminescent Proteins
Paracrine Communication
Phosphonoacetic Acid
Simplexvirus
Vero Cells
Viral Plaque Assay
Virus Internalization
06 Biological Sciences
07 Agricultural And Veterinary Sciences
11 Medical And Health Sciences
Publication Status
Published