Oligoribonucleotide-Containing Nanocomplexes Based on Aminopropylsilanol Nanoparticles as Effective Inhibitors of Influenza A Virus Replication

Abstract

Titanium dioxide or aminopropylsilanol nanoparticles were shown to be effective vehicles for delivering oligodeoxyribonucleotides and deoxyribozymes to cells to affect target nucleic acids. In this paper, the proposed principle of the delivery has been implemented in relation to oligoribonucleotides (ORN), components of short interfering RNAs (siRNAs). It has been shown that the obtained ORN-containing nanocomplexes (Si~NH₂·ORN) based on aminopropylsilanol nanoparticles penetrate eukaryotic cells. These nanocomplexes have been investigated as agents for suppressing the replication of influenza A virus (IAV) in the cellular system. It has been shown that the ORN strands targeted to (+)RNA and (–)RNA of the IAV 5th segment reduces the titer of the virus by 99.7% and 98.4%, respectively. Thus, oligoribonucleotides in the Si~NH₂·ORN nanocomplexes effectively inhibit the replication of the influenza A virus.