TY - JOUR
T1 - Divalent siRNAs are bioavailable in the lung and efficiently block SARS-CoV-2 infection
AU - Hariharan, Vignesh N.
AU - Shin, Minwook
AU - Chang, Ching Wen
AU - O’Reilly, Daniel
AU - Biscans, Annabelle
AU - Yamada, Ken
AU - Guo, Zhiru
AU - Somasundaran, Mohan
AU - Tang, Qi
AU - Monopoli, Kathryn
AU - Krishnamurthy, Pranathi Meda
AU - Devi, Gitali
AU - McHugh, Nicholas
AU - Cooper, David A.
AU - Echeverria, Dimas
AU - Cruz, John
AU - Chan, Io Long
AU - Liu, Ping
AU - Lim, Sun Young
AU - McConnell, Jill
AU - Singh, Satya Prakash
AU - Hildebrand, Samuel
AU - Sousa, Jacquelyn
AU - Davis, Sarah M.
AU - Kennedy, Zachary
AU - Ferguson, Chantal
AU - Godinho, Bruno M.D.C.
AU - Thillier, Yann
AU - Caiazzi, Jillian
AU - Ly, Socheata
AU - Muhuri, Manish
AU - Kelly, Karen
AU - Humphries, Fiachra
AU - Cousineau, Alyssa
AU - Parsi, Krishna Mohan
AU - Li, Qi
AU - Wang, Yang
AU - Maehr, René
AU - Gao, Guangping
AU - Korkin, Dmitry
AU - McDougall, William M.
AU - Finberg, Robert W.
AU - Fitzgerald, Katherine A.
AU - Wang, Jennifer P.
AU - Watts, Jonathan K.
AU - Khvorova, Anastasia
N1 - Publisher Copyright:
Copyright © 2023 the Author(s)
PY - 2023/3/10
Y1 - 2023/3/10
N2 - The continuous evolution of SARS-CoV-2 variants complicates efforts to combat the ongoing pandemic, underscoring the need for a dynamic platform for the rapid development of pan-viral variant therapeutics. Oligonucleotide therapeutics are enhancing the treatment of numerous diseases with unprecedented potency, duration of effect, and safety. Through the systematic screening of hundreds of oligonucleotide sequences, we identified fully chemically stabilized siRNAs and ASOs that target regions of the SARS-CoV-2 genome conserved in all variants of concern, including delta and omicron. We successively evaluated candidates in cellular reporter assays, followed by viral inhibition in cell culture, with eventual testing of leads for in vivo antiviral activity in the lung. Previous attempts to deliver therapeutic oligonucleotides to the lung have met with only modest success. Here, we report the development of a platform for identifying and generating potent, chemically modified multimeric siRNAs bioavailable in the lung after local intranasal and intratracheal delivery. The optimized divalent siRNAs showed robust antiviral activity in human cells and mouse models of SARS-CoV-2 infection and represent a new paradigm for antiviral therapeutic development for current and future pandemics.
AB - The continuous evolution of SARS-CoV-2 variants complicates efforts to combat the ongoing pandemic, underscoring the need for a dynamic platform for the rapid development of pan-viral variant therapeutics. Oligonucleotide therapeutics are enhancing the treatment of numerous diseases with unprecedented potency, duration of effect, and safety. Through the systematic screening of hundreds of oligonucleotide sequences, we identified fully chemically stabilized siRNAs and ASOs that target regions of the SARS-CoV-2 genome conserved in all variants of concern, including delta and omicron. We successively evaluated candidates in cellular reporter assays, followed by viral inhibition in cell culture, with eventual testing of leads for in vivo antiviral activity in the lung. Previous attempts to deliver therapeutic oligonucleotides to the lung have met with only modest success. Here, we report the development of a platform for identifying and generating potent, chemically modified multimeric siRNAs bioavailable in the lung after local intranasal and intratracheal delivery. The optimized divalent siRNAs showed robust antiviral activity in human cells and mouse models of SARS-CoV-2 infection and represent a new paradigm for antiviral therapeutic development for current and future pandemics.
KW - SARS-COV-2
KW - antisense oligos
KW - lung
KW - mouse model
KW - small interfering RNAs
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U2 - 10.1073/pnas.2219523120
DO - 10.1073/pnas.2219523120
M3 - Article
C2 - 36893269
AN - SCOPUS:85149697521
SN - 0027-8424
VL - 120
JO - Proceedings of the National Academy of Sciences of the United States of America
JF - Proceedings of the National Academy of Sciences of the United States of America
IS - 11
M1 - e2219523120
ER -