Design of LNA-modified siRNAs against the highly structured 5' UTR of coxsackievirus B3

Jesper Wengel, Mariola Dutkiewicz, Hans-Peter Grunert, Heinz Zeichhardt, Suzy W. Lena, Jens Kurreck

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

This study describes a strategy to develop LNA-modified small interfering RNA (siRNAs) against the highly structured 5′ UTR of coxsackievirus B3 (CVB-3), which is an attractive target site due to its high degree of conservation. Accessible sites were identified based on structural models and RNase H assays with DNA oligonucleotides. Subsequently, LNA gapmers, siRNAs, siLNAs and small internally segmented interfering RNA (sisiLNAs) were designed against sites, which were found to be accessible in the in vitro assays, and tested in reporter assays and experiments with the infectious virus. The best siLNA improved viability of infected cells by 92% and exerted good antiviral activity in plaque reduction assays.

Original languageEnglish
JournalFEBS Letters
Volume582
Issue number20
Pages (from-to)3061-3066
ISSN0014-5793
DOIs
Publication statusPublished - 2008

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