Tanshinone IIa for COVID-19
Tanshinone IIa has been reported as potentially beneficial for treatment of COVID-19. We have not reviewed these studies. See all other treatments.
Natural compounds may contribute in preventing SARS-CoV-2 infection: a narrative review, Food Science and Human Wellness, doi:10.1016/j.fshw.2022.04.005 ,
Inhibitors of SARS-CoV-2 PLpro, Frontiers in Chemistry, doi:10.3389/fchem.2022.876212 ,
The emergence of SARS-CoV-2 causing the COVID-19 pandemic, has highlighted how a combination of urgency, collaboration and building on existing research can enable rapid vaccine development to fight disease outbreaks. However, even countries with high vaccination rates still see surges in case numbers and high numbers of hospitalized patients. The development of antiviral treatments hence remains a top priority in preventing hospitalization and death of COVID-19 patients, and eventually bringing an end to the SARS-CoV-2 pandemic. The SARS-CoV-2 proteome contains several essential enzymatic activities embedded within its non-structural proteins (nsps). We here focus on nsp3, that harbours an essential papain-like protease (PLpro) domain responsible for cleaving the viral polyprotein as part of viral processing. Moreover, nsp3/PLpro also cleaves ubiquitin and ISG15 modifications within the host cell, derailing innate immune responses. Small molecule inhibition of the PLpro protease domain significantly reduces viral loads in SARS-CoV-2 infection models, suggesting that PLpro is an excellent drug target for next generation antivirals. In this review we discuss the conserved structure and function of PLpro and the ongoing efforts to design small molecule PLpro inhibitors that exploit this knowledge. We first discuss the many drug repurposing attempts, concluding that it is unlikely that PLpro-targeting drugs already exist. We next discuss the wealth of structural information on SARS-CoV-2 PLpro inhibition, for which there are now ∼30 distinct crystal structures with small molecule inhibitors bound in a surprising number of distinct crystallographic settings. We focus on optimisation of an existing compound class, based on SARS-CoV PLpro inhibitor GRL-0617, and recapitulate how new GRL-0617 derivatives exploit different features of PLpro, to overcome some compound liabilities.
In silico screening of Chinese herbal medicines with the potential to directly inhibit 2019 novel coronavirus, Journal of Integrative Medicine, doi:10.1016/j.joim.2020.02.005 ,
Jinhua Qinggan Granule UHPLC-Q-extractive-Orbitrap-MS assay: Putative identification of 45 potential anti-Covid-19 constituents, confidential addition, and pharmacopoeia quality-markers recommendation, Journal of Food and Drug Analysis, doi:10.38212/2224-6614.3466 ,
A cell-based large-scale screening of natural compounds for inhibitors of SARS-CoV-2, Signal Transduction and Targeted Therapy, doi:10.1038/s41392-020-00343-z ,
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