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J Virol. 2010 Aug;84(15):7892-7. doi: 10.1128/JVI.00379-10. Epub 2010 May 19.

Differential expression of the miR-200 family microRNAs in epithelial and B cells and regulation of Epstein-Barr virus reactivation by the miR-200 family member miR-429.

Author information

1
Department of Pathology, SL-79, Tulane Health Sciences Center, New Orleans, Louisiana 70112, USA.

Abstract

The miR-200 microRNA family is important for maintaining the epithelial phenotype, partially through suppressing ZEB1 and ZEB2. Since ZEB1 inhibits Epstein-Barr virus (EBV) reactivation, we hypothesized that expression of miR-200 family members in epithelial cells may partly account for higher levels of EBV reactivation in this tissue (relative to nonplasma B cells). Here we show that, whereas miR-200 family members are expressed in epithelial cells, their expression is low in latently infected B cells. Furthermore, the miR-200 family member miR-429 shows elevated expression in plasma cell lines and is induced by B-cell-receptor activation in Akata cells. Lastly, expression of miR-429 can break latency.

PMID:
20484493
PMCID:
PMC2897641
DOI:
10.1128/JVI.00379-10
[Indexed for MEDLINE]
Free PMC Article

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