ReferenceID 3150

Wedelolactone inhibits human cytomegalovirus replication by targeting distinct steps of the viral replication cycle

Antiviral Res

Wedelolactone (WDL) is a coumestan present in the plants Eclipta prostrata and Wedelia calendulacea which are used for treatment of a multitude of health problems in traditional medicine. It has previously been shown tha

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Reference Id
3150
Evidence Id
19740
Core Evidence Id
19740
Source Reference Id
6285
Herb2 Reference Id
HBREF007082
Subject Paper Key
HBIN048224_31836420
Pubmed Id
31836420
Doi
10.1016/j.antiviral.2019.104677
Paper Title
Wedelolactone inhibits human cytomegalovirus replication by targeting distinct steps of the viral replication cycle
Paper Abstract
Wedelolactone (WDL) is a coumestan present in the plants Eclipta prostrata and Wedelia calendulacea which are used for treatment of a multitude of health problems in traditional medicine. It has previously been shown that WDL exerts antiviral activity against human immunodeficiency virus and hepatitis C virus. In this study, we investigated the effect of WDL on lytic human cytomegalovirus (HCMV) infection. We demonstrate a strong interference with HCMV replication as analyzed in multi-round replication settings. A more detailed analysis of the underlying mechanisms revealed that WDL acts at two distinct steps of the viral replication cycle. During immediate early (IE) times, we observe an inhibition of IE1/IE2 expression. Although WDL was reported to interfere with NF-kappaB signaling our results suggest the existence of additional mechanisms that impede viral IE expression. During later time points of infection, WDL induced a disruption of the interaction between EZH2 and EED, components of the virus-supportive polycomb repressive complex 2 (PRC2). Thereby, the stability of the PRC2 complex as well as the related complex PRC1 was disturbed leading to diminished viral DNA synthesis. Taken together, we identify WDL as a potent agent against HCMV which interferes at two distinct steps of viral replication.
Journal
Antiviral Res
Publish Year
2020
Experiment Subject
human
Experiment Type
Cell Experiment
Phenotype Related
Cytomegalovirus; Immunodeficiency Virus; Hepatitis C Virus
Paper Title Cn
Paper Title En
Wedelolactone inhibits human cytomegalovirus replication by targeting distinct steps of the viral replication cycle
Bilingual Status
semi_complete