A1 Journal article (refereed)
Quantitative Microscopy Reveals Stepwise Alteration of Chromatin Structure during Herpesvirus Infection (2019)


Aho, Vesa; Mäntylä, Elina; Ekman, Axel; Hakanen, Satu; Mattola, Salla; Chen, Jian-Hua; Weinhardt, Venera; Ruokolainen, Visa; Sodeik, Beate; Larabell, Carolyn; Vihinen-Ranta, Maija (2019). Quantitative Microscopy Reveals Stepwise Alteration of Chromatin Structure during Herpesvirus Infection. Viruses, 11 (10), 935. DOI: 10.3390/v11100935


JYU authors or editors


Publication details

All authors or editors: Aho, Vesa; Mäntylä, Elina; Ekman, Axel; Hakanen, Satu; Mattola, Salla; Chen, Jian-Hua; Weinhardt, Venera; Ruokolainen, Visa; Sodeik, Beate; Larabell, Carolyn; et al.
Journal or series: Viruses
eISSN: 1999-4915
Publication year: 2019
Volume: 11
Issue number: 10
Article number: 935
Publisher: MDPI
Publication country: Switzerland
Publication language: English
Open Access: Publication published in an open access channel
Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/65964


Abstract

During lytic herpes simplex virus 1 (HSV-1) infection, the expansion of the viral replication compartments leads to an enrichment of the host chromatin in the peripheral nucleoplasm. We have shown previously that HSV-1 infection induces the formation of channels through the compacted peripheral chromatin. Here, we used three-dimensional confocal and expansion microscopy, soft X-ray tomography, electron microscopy, and random walk simulations to analyze the kinetics of host chromatin redistribution and capsid localization relative to their egress site at the nuclear envelope. Our data demonstrated a gradual increase in chromatin marginalization, and the kinetics of chromatin smoothening around the viral replication compartments correlated with their expansion. We also observed a gradual transfer of capsids to the nuclear envelope. Later in the infection, random walk modeling indicated a gradually faster transport of capsids to the nuclear envelope that correlated with an increase in the interchromatin channels in the nuclear periphery. Our study reveals a stepwise and time-dependent mechanism of herpesvirus nuclear egress, in which progeny viral capsids approach the egress sites at the nuclear envelope via interchromatin spaces.

Free keywords: HSV-1; chromatin; nuclear egress


Contributing organizations


Related projects

Herpes virusten toiminta solun tumassa
Vihinen-Ranta, Maija
Jane and Aatos Erkko Foundation
15/10/2015-30/04/2019

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Preliminary JUFO rating: 1

Last updated on 2019-21-10 at 07:27