JVI Figure table search 04
Home Help [Feedback] [For Subscribers] [Archive] [Search] [Contents]
This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrowReprints and Permissions
Right arrow Copyright Information
Right arrow Books from ASM Press
Right arrow MicrobeWorld
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Mabit, H.
Right arrow Articles by Greber, U. F.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Mabit, H.
Right arrow Articles by Greber, U. F.

 Previous Article  |  Next Article 

Journal of Virology, October 2002, p. 9962-9971, Vol. 76, No. 19
0022-538X/02/$04.00+0     DOI: 10.1128/JVI.76.19.9962-9971.2002
Copyright © 2002, American Society for Microbiology. All Rights Reserved.

Intact Microtubules Support Adenovirus and Herpes Simplex Virus Infections

Hélène Mabit,1 Michel Y. Nakano,1 Ute Prank,2 Bianca Saam,1 Katinka Döhner,2 Beate Sodeik,2 and Urs F. Greber1*

Zoologisches Institut, Universität Zürich, CH-8057 Zürich, Switzerland,1 Zentrum für Biochemie, Medizinische Hochschule Hannover, D-30623 Hannover, Germany2

Received 10 April 2002/ Accepted 18 June 2002

Capsids and the enclosed DNA of adenoviruses, including the species C viruses adenovirus type 2 (Ad2) and Ad5, and herpesviruses, such as herpes simplex virus type 1 (HSV-1), are targeted to the nuclei of epithelial, endothelial, fibroblastic, and neuronal cells. Cytoplasmic transport of fluorophore-tagged Ad2 and immunologically detected HSV-1 capsids required intact microtubules and the microtubule-dependent minus-end-directed motor complex dynein-dynactin. A recent study with epithelial cells suggested that Ad5 was transported to the nucleus and expressed its genes independently of a microtubule network. To clarify the mechanisms by which Ad2 and, as an independent control, HSV-1 were targeted to the nucleus, we treated epithelial cells with nocodazole (NOC) to depolymerize microtubules and measured viral gene expression at different times and multiplicities of infections. Our results indicate that in NOC-treated cells, viral transgene expression was significantly reduced at up to 48 h postinfection (p.i.). A quantitative analysis of subcellular capsid localization indicated that NOC blocked the nuclear targeting of Ad2 and also HSV-1 by more than 90% at up to 7 h p.i. About 10% of the incoming Texas Red-coupled Ad2 (Ad2-TR) was enriched at the nucleus in microtubule-depleted cells at 5 h p.i. This result is consistent with earlier observations that Ad2-TR capsids move randomly in NOC-treated cells at less than 0.1 µm/s and over distances of less than 5 µm, characteristic of Brownian motion. We conclude that fluorophore-tagged Ad2 and HSV-1 particles are infectious and that microtubules play a prominent role in efficient nuclear targeting during entry and gene expression of species C Ads and HSV-1.

* Corresponding author. Mailing address: Zoologisches Institut der Universität Zürich, Winterthurerstr. 190, CH-8057 Zürich, Switzerland. Phone: 41 1 635 4841. Fax: 41 1 635 6822. E-mail: ufgreber{at}zool.unizh.ch.

Journal of Virology, October 2002, p. 9962-9971, Vol. 76, No. 19
0022-538X/02/$04.00+0     DOI: 10.1128/JVI.76.19.9962-9971.2002
Copyright © 2002, American Society for Microbiology. All Rights Reserved.



This article has been cited by other articles:



Home Help [Feedback] [For Subscribers] [Archive] [Search] [Contents]
J. Bacteriol. Mol. Cell. Biol. Microbiol. Mol. Biol. Rev.
Clin. Vaccine Immunol. ALL ASM JOURNALS

Copyright © 2002 by the American Society for Microbiology. All rights reserved.