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COV-siRNA1 for COVID-19

COV-siRNA1 has been reported as potentially beneficial for treatment of COVID-19. We have not reviewed these studies. See all other treatments.
Anglero-Rodriguez et al., High resistance barrier and prophylactic protection in preclinical models of SARS-CoV-2 with two siRNA combination, Nucleic Acids Research, doi:10.1093/nar/gkae1195
Abstract RNA interference is a natural antiviral mechanism that could be harnessed to combat SARS-CoV-2 infection by targeting and destroying the viral RNA. We identified potent lipophilic small interfering RNA (siRNA) conjugates targeting highly conserved regions of SARS-CoV-2 outside of the spike-encoding region capable of achieving ≥3-log viral reduction. Serial passaging studies demonstrated that a two-siRNA combination prevented development of resistance compared to a single siRNA approach. Viral resistance to single siRNA treatment occurred due to emergence of point mutations at critical positions required for siRNA-mediated target binding and cleavage, which led to a loss of siRNA efficacy. With a two-siRNA combination, emergence of mutations within the siRNA binding site was abolished. When delivered intranasally, two-siRNA combination protected Syrian hamsters from weight loss and lung pathology by viral infection upon prophylactic administration but not following onset of infection. Together, the data support potential utility of RNAi as a prophylactic approach with high resistance barrier to counteract SARS-CoV-2 emergent variants and complement vaccination. Most importantly, given that the siRNAs can be rapidly developed from a new pathogen sequence, this strategy has implications as a new type of preventive medicine that may protect against future coronavirus pandemics.
Please send us corrections, updates, or comments. c19early involves the extraction of 100,000+ datapoints from thousands of papers. Community updates help ensure high accuracy. Treatments and other interventions are complementary. All practical, effective, and safe means should be used based on risk/benefit analysis. No treatment or intervention is 100% available and effective for all current and future variants. We do not provide medical advice. Before taking any medication, consult a qualified physician who can provide personalized advice and details of risks and benefits based on your medical history and situation. FLCCC and WCH provide treatment protocols.
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