A SARS-CoV-2 targeted siRNA-nanoparticle therapy for COVID-19.
A SARS-CoV-2 targeted siRNA-nanoparticle therapy for COVID-19.
复制标题
针对COVID-19的SARS-CoV-2靶向siRNA纳米颗粒疗法。
DOI:
10.1016/j.ymthe.2021.05.004
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发表时间:
2021-07-07
期刊:
影响因子:
--
通讯作者:
Morris KV
中科院分区:
文献类型:
--
作者:
Idris A;Davis A;Supramaniam A;Acharya D;Kelly G;Tayyar Y;West N;Zhang P;McMillan CLD;Soemardy C;Ray R;O'Meally D;Scott TA;McMillan NAJ;Morris KV
Coronavirus disease 2019 (COVID-19) is caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection in humans. Despite several emerging vaccines, there remains no verifiable therapeutic targeted specifically to the virus. Here we present a highly effective small interfering RNA (siRNA) therapeutic against SARS-CoV-2 infection using a novel lipid nanoparticle (LNP) delivery system. Multiple siRNAs targeting highly conserved regions of the SARS-CoV-2 virus were screened, and three candidate siRNAs emerged that effectively inhibit the virus by greater than 90% either alone or in combination with one another. We simultaneously developed and screened two novel LNP formulations for the delivery of these candidate siRNA therapeutics to the lungs, an organ that incurs immense damage during SARS-CoV-2 infection. Encapsulation of siRNAs in these LNPs followed by in vivo injection demonstrated robust repression of virus in the lungs and a pronounced survival advantage to the treated mice. Our LNP-siRNA approaches are scalable and can be administered upon the first sign of SARS-CoV-2 infection in humans. We suggest that an siRNA-LNP therapeutic approach could prove highly useful in treating COVID-19 disease as an adjunctive therapy to current vaccine strategies. Described here is the first reported therapeutic based on lipid-nanoparticle delivery of small interfering RNAs targeted to inhibit the genome of SARS-COV-2 as a treatment for COVID-19.
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