Microtubules in Polyomavirus Infection

Microtubules, part of the cytoskeleton, are indispensable for intracellular movement, cell division, and maintaining cell shape and polarity. In addition, microtubules play an important role in viral infection. In this review, we summarize the role of the microtubules’ network during polyo...

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Main Authors: Lenka Horníková, Kateřina Bruštíková, Jitka Forstová
Format: Article
Language:English
Published: MDPI AG 2020-01-01
Series:Viruses
Subjects:
Online Access:https://www.mdpi.com/1999-4915/12/1/121
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author Lenka Horníková
Kateřina Bruštíková
Jitka Forstová
author_facet Lenka Horníková
Kateřina Bruštíková
Jitka Forstová
author_sort Lenka Horníková
collection DOAJ
description Microtubules, part of the cytoskeleton, are indispensable for intracellular movement, cell division, and maintaining cell shape and polarity. In addition, microtubules play an important role in viral infection. In this review, we summarize the role of the microtubules’ network during polyomavirus infection. Polyomaviruses usurp microtubules and their motors to travel via early and late acidic endosomes to the endoplasmic reticulum. As shown for SV40, kinesin-1 and microtubules are engaged in the release of partially disassembled virus from the endoplasmic reticulum to the cytosol, and dynein apparently assists in the further disassembly of virions prior to their translocation to the cell nucleus—the place of their replication. Polyomavirus gene products affect the regulation of microtubule dynamics. Early T antigens destabilize microtubules and cause aberrant mitosis. The role of these activities in tumorigenesis has been documented. However, its importance for productive infection remains elusive. On the other hand, in the late phase of infection, the major capsid protein, VP1, of the mouse polyomavirus, counteracts T-antigen-induced destabilization. It physically binds microtubules and stabilizes them. The interaction results in the G2/M block of the cell cycle and prolonged S phase, which is apparently required for successful completion of the viral replication cycle.
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spelling doaj.art-75b715aec9ee434695fe907aec48f80e2022-12-22T01:59:22ZengMDPI AGViruses1999-49152020-01-0112112110.3390/v12010121v12010121Microtubules in Polyomavirus InfectionLenka Horníková0Kateřina Bruštíková1Jitka Forstová2Department of Genetics and Microbiology, Faculty of Science, Charles University, BIOCEV, 25250 Vestec, Czech RepublicDepartment of Genetics and Microbiology, Faculty of Science, Charles University, BIOCEV, 25250 Vestec, Czech RepublicDepartment of Genetics and Microbiology, Faculty of Science, Charles University, BIOCEV, 25250 Vestec, Czech RepublicMicrotubules, part of the cytoskeleton, are indispensable for intracellular movement, cell division, and maintaining cell shape and polarity. In addition, microtubules play an important role in viral infection. In this review, we summarize the role of the microtubules’ network during polyomavirus infection. Polyomaviruses usurp microtubules and their motors to travel via early and late acidic endosomes to the endoplasmic reticulum. As shown for SV40, kinesin-1 and microtubules are engaged in the release of partially disassembled virus from the endoplasmic reticulum to the cytosol, and dynein apparently assists in the further disassembly of virions prior to their translocation to the cell nucleus—the place of their replication. Polyomavirus gene products affect the regulation of microtubule dynamics. Early T antigens destabilize microtubules and cause aberrant mitosis. The role of these activities in tumorigenesis has been documented. However, its importance for productive infection remains elusive. On the other hand, in the late phase of infection, the major capsid protein, VP1, of the mouse polyomavirus, counteracts T-antigen-induced destabilization. It physically binds microtubules and stabilizes them. The interaction results in the G2/M block of the cell cycle and prolonged S phase, which is apparently required for successful completion of the viral replication cycle.https://www.mdpi.com/1999-4915/12/1/121virusmicrotubulespolyomavirust antigensvp1 capsid proteinmolecular motorsdyneinkinesinvirus traffickingcell cycle block
spellingShingle Lenka Horníková
Kateřina Bruštíková
Jitka Forstová
Microtubules in Polyomavirus Infection
Viruses
virus
microtubules
polyomavirus
t antigens
vp1 capsid protein
molecular motors
dynein
kinesin
virus trafficking
cell cycle block
title Microtubules in Polyomavirus Infection
title_full Microtubules in Polyomavirus Infection
title_fullStr Microtubules in Polyomavirus Infection
title_full_unstemmed Microtubules in Polyomavirus Infection
title_short Microtubules in Polyomavirus Infection
title_sort microtubules in polyomavirus infection
topic virus
microtubules
polyomavirus
t antigens
vp1 capsid protein
molecular motors
dynein
kinesin
virus trafficking
cell cycle block
url https://www.mdpi.com/1999-4915/12/1/121
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AT jitkaforstova microtubulesinpolyomavirusinfection