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Updated: Jun 2, 2026
11:54
Measurement of BK-polyomavirus Non-Coding Control Region Driven Transcriptional Activity Via Flow Cytometry
Published on: July 13, 2019
Inhibition of human BK polyomavirus replication by small noncoding RNAs
Irina Tikhanovich1, Bo Liang, Cathal Seoighe
1Centre for Chromosome Biology, School of Natural Sciences, National University of Ireland, Galway, Galway, Ireland.
Journal of Virology
|May 6, 2011
Summary
Researchers discovered small replication-regulating RNAs (srRNAs) that inhibit human BK polyomavirus (BKV) DNA replication. These srRNAs target the viral noncoding control region (NCCR), offering a novel antiviral strategy.
Area of Science:
- Molecular Biology
- Virology
- RNA Biology
Background:
- Small noncoding RNAs (sncRNAs) are crucial regulators of diverse cellular processes.
- Polyomaviruses, like BK polyomavirus (BKV), are DNA viruses with significant clinical relevance.
Purpose of the Study:
- To identify and characterize novel small RNAs that regulate viral DNA replication.
- To investigate the potential of these RNAs as antiviral agents against polyomaviruses.
Main Methods:
- Enrichment of small replication-regulating RNAs (srRNAs) using DNA replication assay-guided fractionation.
- Hybridization of srRNAs to the BKV noncoding control region (NCCR) and cDNA synthesis.
- Selective mutagenesis to confirm the mechanism of inhibition and ectopic expression in human cells.
Main Results:
- Identified srRNAs that specifically inhibit BKV DNA replication both in vitro and in vivo.
- Demonstrated that srRNAs bind to the BKV NCCR, interfering with the initiation of DNA replication.
- Designed and synthesized srRNAs capable of inhibiting simian virus 40 (SV40) DNA replication.
Conclusions:
- srRNAs represent a novel class of molecules that regulate viral DNA replication.
- Targeting the viral NCCR with srRNAs is a viable strategy for inhibiting polyomavirus replication.
- Synthetic srRNAs hold promise as potential antiviral therapeutics against polyomaviruses and other viruses.
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