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10.1021/acsinfecdis.1c00053

http://scihub22266oqcxt.onion/10.1021/acsinfecdis.1c00053
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33783182!ä!33783182

suck abstract from ncbi


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pmid33783182      ACS+Infect+Dis 2021 ; 7 (7): 1985-1995
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  • Inhibition of Human Coronaviruses by Antimalarial Peroxides #MMPMID33783182
  • Ghosh AK; Miller H; Knox K; Kundu M; Henrickson KJ; Arav-Boger R
  • ACS Infect Dis 2021[Jul]; 7 (7): 1985-1995 PMID33783182show ga
  • As the toll of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic continues, efforts are ongoing to identify new agents and repurpose safe drugs for its treatment. Antimalarial peroxides have reported antiviral and anticancer activities. Here, we evaluated the in vitro activities of artesunate (AS) and two ozonides (OZ418 and OZ277) against human alpha-coronavirus NL63 and beta-coronaviruses OC43 and SARS-CoV-2 in several cell lines. OZ418 had the best selectivity index (SI) in NL63-infected Vero cells and MK2 cells. The overall SI of the tested compounds was cell-type dependent. In OC43-infected human foreskin fibroblasts, AS had the best cell-associated SI, >/=17 muM, while the SI of OZ418 and OZ277 was >/=12 muM and >/=7 muM, respectively. AS did not inhibit SARS-CoV-2 in either Vero or Calu-3 cells. A comparison of OZ418 and OZ277 activity in SARS-CoV2-infected Calu-3 cells revealed similar EC(50) (5.3 muM and 11.6 muM, respectively), higher than the EC(50) of remdesivir (1.0 +/- 0.1 muM), but the SI of OZ418 was higher than OZ277. A third ozonide, OZ439, inhibited SARS-CoV-2 efficiently in Vero cells, but compared to OZ418 in Calu-3 cells, it showed higher toxicity. Improved inhibition of SARS-CoV-2 was observed when OZ418 was used together with remdesivir. Although the EC(50) of ozonides might be clinically achieved in plasma after intravenous administration, sustained virus suppression in tissues will require further considerations, including drug combination. Our work supports the potential repurposing of ozonides and calls for future in vivo models.
  • |*Antimalarials/pharmacology[MESH]
  • |*COVID-19[MESH]
  • |Animals[MESH]
  • |Chlorocebus aethiops[MESH]
  • |Humans[MESH]
  • |Peroxides/pharmacology[MESH]
  • |RNA, Viral[MESH]
  • |SARS-CoV-2[MESH]


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