J 2022

Diphyllin Shows a Broad-Spectrum Antiviral Activity against Multiple Medically Important Enveloped RNA and DNA Viruses

ŠTEFÁNIK, Michal, Dattatry Shivajirao BHOSALE, Jan HAVIERNIK, Petra STRAKOVÁ, Martina FOJTÍKOVÁ et. al.

Basic information

Original name

Diphyllin Shows a Broad-Spectrum Antiviral Activity against Multiple Medically Important Enveloped RNA and DNA Viruses

Authors

ŠTEFÁNIK, Michal (703 Slovakia), Dattatry Shivajirao BHOSALE, Jan HAVIERNIK (203 Czech Republic), Petra STRAKOVÁ (203 Czech Republic), Martina FOJTÍKOVÁ, Lucie DUFKOVÁ, Ivana HUVAROVÁ (203 Czech Republic), Jiří SALÁT (203 Czech Republic), Jan BARTÁČEK, Jan SVOBODA, Miloš SEDLÁK, Daniel RŮŽEK (203 Czech Republic, belonging to the institution), Andrew D. MILLER and Luděk EYER (203 Czech Republic, guarantor)

Edition

Viruses, Basel, MDPI, 2022, 1999-4915

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10607 Virology

Country of publisher

Switzerland

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 4.700

RIV identification code

RIV/00216224:14310/22:00125437

Organization unit

Faculty of Science

UT WoS

000762528300001

Keywords in English

enveloped virus; diphyllin; cleistanthin B; vacuolar ATPase inhibitor; antiviral activity; cytotoxicity

Tags

Tags

International impact, Reviewed
Změněno: 14/4/2022 09:48, Mgr. Marie Šípková, DiS.

Abstract

V originále

Diphyllin is a natural arylnaphtalide lignan extracted from tropical plants of particular importance in traditional Chinese medicine. This compound has been described as a potent inhibitor of vacuolar (H+)ATPases and hence of the endosomal acidification process that is required by numerous enveloped viruses to trigger their respective viral infection cascades after entering host cells by receptor-mediated endocytosis. Accordingly, we report here a revised, updated, and improved synthesis of diphyllin, and demonstrate its antiviral activities against a panel of enveloped viruses from Flaviviridae, Phenuiviridae, Rhabdoviridae, and Herpesviridae families. Diphyllin is not cytotoxic for Vero and BHK-21 cells up to 100 µM and exerts a sub-micromolar or low-micromolar antiviral activity against tick-borne encephalitis virus, West Nile virus, Zika virus, Rift Valley fever virus, rabies virus, and herpes-simplex virus type 1. Our study shows that diphyllin is a broad-spectrum host cell-targeting antiviral agent that blocks the replication of multiple phylogenetically unrelated enveloped RNA and DNA viruses. In support of this, we also demonstrate that diphyllin is more than just a vacuolar (H+)ATPase inhibitor but may employ other antiviral mechanisms of action to inhibit the replication cycles of those viruses that do not enter host cells by endocytosis followed by low pH-dependent membrane fusion.