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Intranasal administration of a multiplex targeting SCLMs@FEN1-hpDNAs with synergistic baicalein for pulmonary anti-viral treatment

GSE284624 Homo sapiens Expression profiling by high throughput sequencing 6 samples Submitted 2024/12/19 Platform GPL24676
Summary
Here we reported an anti-viral strategy for SARS-CoV-2 infection: intranasal administration of silica cross-linked micelles (SCLMs) encapsulating in vitro purified NES-FEN1-NES protein and a set of hpDNAs (shorted as SCLMs@FEN1-hpDNAs). The set of hpDNAs multiplex targeted SARS-CoV-2’s N gene RNA and the host Ctsl gene mRNA. In vitro experiments demonstrated the purified NES-FEN1-NES protein transfected into cells has efficient mRNA knockdown ability when guided by hpDNAs. The intranasal administration of SCLMs exhibited high pulmonary accessibility, and SCLMs@FEN1-hpDNAs effectively downregulated targeted gene expression in vivo. The efficacy is enhanced by synergistic intranasal baicalein by improving cellular uptake and anti-inflammatory effects. In a mouse model of SARS-CoV-2 infection, the combination with baicalein and SCLMs@FEN1-hpDNAs inhibited the virus replication, improved survival rates, and reduced neuroinflammation. This study highlights the potential of intranasal SCLMs@FEN1-hpDNAs with baicalein as a promising approach for treating respiratory diseases.
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Also filed as BioProject PRJNA1199957 and SRA study SRP552308. Searching any of these in the dataset finder brings you back here.

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