The inhibitory activity of methoxyl flavonoids derived from Inula britannica flowers on SARS-CoV-2 3CLpro

In our ongoing efforts to identify effective natural antiviral agents, four methoxy flavonoids (1–4) were isolated from the Inula britannica flower extract. Their structures were elucidated using nuclear magnetic resonance. Flavonoids 1–4 exhibited inhibitory activity against SARS- CoV-2 3CLpro with...

Descripción completa

Detalles Bibliográficos
Autores principales: Kim, Jang Hoon, Park, Yea-In, Hur, Mok, Park, Woo Tae, Moon, Youn-Ho, Koo, Sung Cheol, Yun-Chan, Her, Lee, Ik Soo, Park, Junsoo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Published by Elsevier B.V. 2022
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9534544/
https://www.ncbi.nlm.nih.gov/pubmed/36208809
http://dx.doi.org/10.1016/j.ijbiomac.2022.10.008
_version_ 1784802566062735360
author Kim, Jang Hoon
Park, Yea-In
Hur, Mok
Park, Woo Tae
Moon, Youn-Ho
Koo, Sung Cheol
Yun-Chan, Her
Lee, Ik Soo
Park, Junsoo
author_facet Kim, Jang Hoon
Park, Yea-In
Hur, Mok
Park, Woo Tae
Moon, Youn-Ho
Koo, Sung Cheol
Yun-Chan, Her
Lee, Ik Soo
Park, Junsoo
author_sort Kim, Jang Hoon
collection PubMed
description In our ongoing efforts to identify effective natural antiviral agents, four methoxy flavonoids (1–4) were isolated from the Inula britannica flower extract. Their structures were elucidated using nuclear magnetic resonance. Flavonoids 1–4 exhibited inhibitory activity against SARS- CoV-2 3CLpro with IC(50) values of 41.6 ± 2.5, 35.9 ± 0.9, 32.8 ± 1.2, and 96.6 ± 3.4 μM, respectively. Flavonoids 1–3 inhibited 3CLpro in a competitive manner. Based on molecular simulations, key amino acids that form hydrogen bond with inhibitor 3 were identified. Finally, we found that inhibitors (1–3) suppressed HCoV-OC43 coronavirus proliferation at micromole concentrations.
format Online
Article
Text
id pubmed-9534544
institution National Center for Biotechnology Information
language English
publishDate 2022
publisher Published by Elsevier B.V.
record_format MEDLINE/PubMed
spelling pubmed-95345442022-10-06 The inhibitory activity of methoxyl flavonoids derived from Inula britannica flowers on SARS-CoV-2 3CLpro Kim, Jang Hoon Park, Yea-In Hur, Mok Park, Woo Tae Moon, Youn-Ho Koo, Sung Cheol Yun-Chan, Her Lee, Ik Soo Park, Junsoo Int J Biol Macromol Article In our ongoing efforts to identify effective natural antiviral agents, four methoxy flavonoids (1–4) were isolated from the Inula britannica flower extract. Their structures were elucidated using nuclear magnetic resonance. Flavonoids 1–4 exhibited inhibitory activity against SARS- CoV-2 3CLpro with IC(50) values of 41.6 ± 2.5, 35.9 ± 0.9, 32.8 ± 1.2, and 96.6 ± 3.4 μM, respectively. Flavonoids 1–3 inhibited 3CLpro in a competitive manner. Based on molecular simulations, key amino acids that form hydrogen bond with inhibitor 3 were identified. Finally, we found that inhibitors (1–3) suppressed HCoV-OC43 coronavirus proliferation at micromole concentrations. Published by Elsevier B.V. 2022-12-01 2022-10-05 /pmc/articles/PMC9534544/ /pubmed/36208809 http://dx.doi.org/10.1016/j.ijbiomac.2022.10.008 Text en © 2022 Published by Elsevier B.V. Since January 2020 Elsevier has created a COVID-19 resource centre with free information in English and Mandarin on the novel coronavirus COVID-19. The COVID-19 resource centre is hosted on Elsevier Connect, the company's public news and information website. Elsevier hereby grants permission to make all its COVID-19-related research that is available on the COVID-19 resource centre - including this research content - immediately available in PubMed Central and other publicly funded repositories, such as the WHO COVID database with rights for unrestricted research re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for free by Elsevier for as long as the COVID-19 resource centre remains active.
spellingShingle Article
Kim, Jang Hoon
Park, Yea-In
Hur, Mok
Park, Woo Tae
Moon, Youn-Ho
Koo, Sung Cheol
Yun-Chan, Her
Lee, Ik Soo
Park, Junsoo
The inhibitory activity of methoxyl flavonoids derived from Inula britannica flowers on SARS-CoV-2 3CLpro
title The inhibitory activity of methoxyl flavonoids derived from Inula britannica flowers on SARS-CoV-2 3CLpro
title_full The inhibitory activity of methoxyl flavonoids derived from Inula britannica flowers on SARS-CoV-2 3CLpro
title_fullStr The inhibitory activity of methoxyl flavonoids derived from Inula britannica flowers on SARS-CoV-2 3CLpro
title_full_unstemmed The inhibitory activity of methoxyl flavonoids derived from Inula britannica flowers on SARS-CoV-2 3CLpro
title_short The inhibitory activity of methoxyl flavonoids derived from Inula britannica flowers on SARS-CoV-2 3CLpro
title_sort inhibitory activity of methoxyl flavonoids derived from inula britannica flowers on sars-cov-2 3clpro
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9534544/
https://www.ncbi.nlm.nih.gov/pubmed/36208809
http://dx.doi.org/10.1016/j.ijbiomac.2022.10.008
work_keys_str_mv AT kimjanghoon theinhibitoryactivityofmethoxylflavonoidsderivedfrominulabritannicaflowersonsarscov23clpro
AT parkyeain theinhibitoryactivityofmethoxylflavonoidsderivedfrominulabritannicaflowersonsarscov23clpro
AT hurmok theinhibitoryactivityofmethoxylflavonoidsderivedfrominulabritannicaflowersonsarscov23clpro
AT parkwootae theinhibitoryactivityofmethoxylflavonoidsderivedfrominulabritannicaflowersonsarscov23clpro
AT moonyounho theinhibitoryactivityofmethoxylflavonoidsderivedfrominulabritannicaflowersonsarscov23clpro
AT koosungcheol theinhibitoryactivityofmethoxylflavonoidsderivedfrominulabritannicaflowersonsarscov23clpro
AT yunchanher theinhibitoryactivityofmethoxylflavonoidsderivedfrominulabritannicaflowersonsarscov23clpro
AT leeiksoo theinhibitoryactivityofmethoxylflavonoidsderivedfrominulabritannicaflowersonsarscov23clpro
AT parkjunsoo theinhibitoryactivityofmethoxylflavonoidsderivedfrominulabritannicaflowersonsarscov23clpro
AT kimjanghoon inhibitoryactivityofmethoxylflavonoidsderivedfrominulabritannicaflowersonsarscov23clpro
AT parkyeain inhibitoryactivityofmethoxylflavonoidsderivedfrominulabritannicaflowersonsarscov23clpro
AT hurmok inhibitoryactivityofmethoxylflavonoidsderivedfrominulabritannicaflowersonsarscov23clpro
AT parkwootae inhibitoryactivityofmethoxylflavonoidsderivedfrominulabritannicaflowersonsarscov23clpro
AT moonyounho inhibitoryactivityofmethoxylflavonoidsderivedfrominulabritannicaflowersonsarscov23clpro
AT koosungcheol inhibitoryactivityofmethoxylflavonoidsderivedfrominulabritannicaflowersonsarscov23clpro
AT yunchanher inhibitoryactivityofmethoxylflavonoidsderivedfrominulabritannicaflowersonsarscov23clpro
AT leeiksoo inhibitoryactivityofmethoxylflavonoidsderivedfrominulabritannicaflowersonsarscov23clpro
AT parkjunsoo inhibitoryactivityofmethoxylflavonoidsderivedfrominulabritannicaflowersonsarscov23clpro

Ejemplares similares