Tea Polyphenols EGCG and Theaflavin Inhibit the Activity of SARS-CoV-2 3CL-Protease In Vitro
Joint Authors
Jang, Minsu
Park, Yea-In
Cha, Yeo-Eun
Park, Rackhyun
Namkoong, Sim
Lee, Jin I.
Park, Junsoo
Source
Evidence-Based Complementary and Alternative Medicine
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-09-17
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
COVID-19, a global pandemic, has caused over 750,000 deaths worldwide as of August 2020.
A vaccine or remedy for SARS-CoV-2, the virus responsible for COVID-19, is necessary to slow down the spread and lethality of COVID-19.
However, there is currently no effective treatment available against SARS-CoV-2.
In this report, we demonstrated that EGCG and theaflavin, the main active ingredients of green tea and black tea, respectively, are potentially effective to inhibit SARS-CoV-2 activity.
Coronaviruses require the 3CL-protease for the cleavage of its polyprotein to make individual proteins functional.
EGCG and theaflavin showed inhibitory activity against the SARS-CoV-2 3CL-protease in a dose-dependent manner, and the half inhibitory concentration (IC50) was 7.58 μg/ml for EGCG and 8.44 μg/ml for theaflavin.
In addition, we did not observe any cytotoxicity for either EGCG or theaflavin at the concentrations tested up to 40 μg/ml in HEK293T cells.
These results suggest that upon further study, EGCG and theaflavin can be potentially useful to treat COVID-19.
American Psychological Association (APA)
Jang, Minsu& Park, Yea-In& Cha, Yeo-Eun& Park, Rackhyun& Namkoong, Sim& Lee, Jin I.…[et al.]. 2020. Tea Polyphenols EGCG and Theaflavin Inhibit the Activity of SARS-CoV-2 3CL-Protease In Vitro. Evidence-Based Complementary and Alternative Medicine،Vol. 2020, no. 2020, pp.1-7.
https://search.emarefa.net/detail/BIM-1156628
Modern Language Association (MLA)
Jang, Minsu…[et al.]. Tea Polyphenols EGCG and Theaflavin Inhibit the Activity of SARS-CoV-2 3CL-Protease In Vitro. Evidence-Based Complementary and Alternative Medicine No. 2020 (2020), pp.1-7.
https://search.emarefa.net/detail/BIM-1156628
American Medical Association (AMA)
Jang, Minsu& Park, Yea-In& Cha, Yeo-Eun& Park, Rackhyun& Namkoong, Sim& Lee, Jin I.…[et al.]. Tea Polyphenols EGCG and Theaflavin Inhibit the Activity of SARS-CoV-2 3CL-Protease In Vitro. Evidence-Based Complementary and Alternative Medicine. 2020. Vol. 2020, no. 2020, pp.1-7.
https://search.emarefa.net/detail/BIM-1156628
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1156628