The Natural Flavonoid Compound Deguelin Inhibits HCMV Lytic Replication within Fibroblasts

Human cytomegalovirus (HCMV) is a ubiquitous herpesvirus for which there is no vaccine or cure. This viral infection, once acquired, is life-long, residing latently in hematopoietic cells. However, latently infected individuals with weakened immune systems often undergo HCMV reactivation, which can...

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Main Authors: Masatoshi Nukui, Christine M. O’Connor, Eain A. Murphy
Format: Article
Language:English
Published: MDPI AG 2018-11-01
Series:Viruses
Subjects:
Online Access:https://www.mdpi.com/1999-4915/10/11/614
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author Masatoshi Nukui
Christine M. O’Connor
Eain A. Murphy
author_facet Masatoshi Nukui
Christine M. O’Connor
Eain A. Murphy
author_sort Masatoshi Nukui
collection DOAJ
description Human cytomegalovirus (HCMV) is a ubiquitous herpesvirus for which there is no vaccine or cure. This viral infection, once acquired, is life-long, residing latently in hematopoietic cells. However, latently infected individuals with weakened immune systems often undergo HCMV reactivation, which can cause serious complications in immunosuppressed and immunocompromised patients. Current anti-viral therapies target late stages of viral replication, and are often met with therapeutic resistance, necessitating the development of novel therapeutics. In this current study, we identified a naturally-occurring flavonoid compound, deguelin, which inhibits HCMV lytic replication. Our findings reveal that nanomolar concentrations of deguelin significantly suppress the production of the infectious virus. Further, we show that deguelin inhibits the lytic cycle during the phase of the replication cycle consistent with early (E) gene and protein expression. Importantly, our data reveal that deguelin inhibits replication of a ganciclovir-resistant strain of HCMV. Together, our findings identify a novel, naturally occurring compound that may prove useful in the treatment of HCMV replication.
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spelling doaj.art-a2ebf891e9f24803a801408f7d7e1f752022-12-21T19:04:06ZengMDPI AGViruses1999-49152018-11-01101161410.3390/v10110614v10110614The Natural Flavonoid Compound Deguelin Inhibits HCMV Lytic Replication within FibroblastsMasatoshi Nukui0Christine M. O’Connor1Eain A. Murphy2Genomic Medicine, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44106, USAGenomic Medicine, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44106, USAFORGE Life Science, Pennsylvania Biotechnology Center, Doylestown, PA 18901, USAHuman cytomegalovirus (HCMV) is a ubiquitous herpesvirus for which there is no vaccine or cure. This viral infection, once acquired, is life-long, residing latently in hematopoietic cells. However, latently infected individuals with weakened immune systems often undergo HCMV reactivation, which can cause serious complications in immunosuppressed and immunocompromised patients. Current anti-viral therapies target late stages of viral replication, and are often met with therapeutic resistance, necessitating the development of novel therapeutics. In this current study, we identified a naturally-occurring flavonoid compound, deguelin, which inhibits HCMV lytic replication. Our findings reveal that nanomolar concentrations of deguelin significantly suppress the production of the infectious virus. Further, we show that deguelin inhibits the lytic cycle during the phase of the replication cycle consistent with early (E) gene and protein expression. Importantly, our data reveal that deguelin inhibits replication of a ganciclovir-resistant strain of HCMV. Together, our findings identify a novel, naturally occurring compound that may prove useful in the treatment of HCMV replication.https://www.mdpi.com/1999-4915/10/11/614cytomegalovirusHCMVdeguelinganciclovir
spellingShingle Masatoshi Nukui
Christine M. O’Connor
Eain A. Murphy
The Natural Flavonoid Compound Deguelin Inhibits HCMV Lytic Replication within Fibroblasts
Viruses
cytomegalovirus
HCMV
deguelin
ganciclovir
title The Natural Flavonoid Compound Deguelin Inhibits HCMV Lytic Replication within Fibroblasts
title_full The Natural Flavonoid Compound Deguelin Inhibits HCMV Lytic Replication within Fibroblasts
title_fullStr The Natural Flavonoid Compound Deguelin Inhibits HCMV Lytic Replication within Fibroblasts
title_full_unstemmed The Natural Flavonoid Compound Deguelin Inhibits HCMV Lytic Replication within Fibroblasts
title_short The Natural Flavonoid Compound Deguelin Inhibits HCMV Lytic Replication within Fibroblasts
title_sort natural flavonoid compound deguelin inhibits hcmv lytic replication within fibroblasts
topic cytomegalovirus
HCMV
deguelin
ganciclovir
url https://www.mdpi.com/1999-4915/10/11/614
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