1887

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Volume 93, Issue 8

Inhibition of integrin α6 expression by cell-free varicella-zoster virus Free

Abstract

Varicella-zoster virus (VZV) causes chickenpox and shingles. VZV is released from infected cells during natural infection, but remains highly cell-associated during experimental infection, and so most studies have utilized cell-associated infection models. We examined the impact of cell-free VZV infection of primary human foreskin fibroblasts (HFFs) on the receptor integrin α6 (ITGA6). qPCR and flow cytometry demonstrated that both cell-free VZV and cell-free UV-inactivated VZV downregulated transcription and cell-surface protein expression of ITGA6. To establish whether ITGA6 altered VZV infection, VZV transcripts and nuclear DNA levels were measured in HFFs treated with ITGA6 blocking antibody before infection. ITGA6 blocking did not impair virus entry but did negatively impact VZV transcription, and this effect was virus specific as transcription of the related herpes simplex virus type 1 was not similarly inhibited. This study identifies modulation of ITGA6 during cell-free VZV infection, and provides the first evidence linking ITGA6 with post-entry productive VZV gene expression.

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© 2012 SGM
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2012-08-01
2024-04-16
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Inhibition of integrin α6 expression by cell-free varicella-zoster virus
J. Gen. Virol. 93, 1725 (2012); https://doi.org/10.1099/vir.0.039917-0
/content/journal/jgv/10.1099/vir.0.039917-0
/content/journal/jgv/10.1099/vir.0.039917-0
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