Exploiting tumor epigenetics to improve oncolytic virotherapy

Oncolytic viruses (OVs) comprise a versatile and multi-mechanistic therapeutic platform in the growing arsenal of anticancer biologics. These replicating therapeutics find favorable conditions in the tumor niche, characterized among others by increased metabolism, reduced anti-tumor/antiviral immuni...

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Main Authors: Nicole E. Forbes, Hesham eAbdelbary, Mathieu eLupien, John C. Bell, Jean-Simon eDiallo
Format: Article
Language:English
Published: Frontiers Media S.A. 2013-09-01
Series:Frontiers in Genetics
Subjects:
Online Access:http://journal.frontiersin.org/Journal/10.3389/fgene.2013.00184/full
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author Nicole E. Forbes
Nicole E. Forbes
Hesham eAbdelbary
Hesham eAbdelbary
Mathieu eLupien
Mathieu eLupien
John C. Bell
John C. Bell
Jean-Simon eDiallo
Jean-Simon eDiallo
author_facet Nicole E. Forbes
Nicole E. Forbes
Hesham eAbdelbary
Hesham eAbdelbary
Mathieu eLupien
Mathieu eLupien
John C. Bell
John C. Bell
Jean-Simon eDiallo
Jean-Simon eDiallo
author_sort Nicole E. Forbes
collection DOAJ
description Oncolytic viruses (OVs) comprise a versatile and multi-mechanistic therapeutic platform in the growing arsenal of anticancer biologics. These replicating therapeutics find favorable conditions in the tumor niche, characterized among others by increased metabolism, reduced anti-tumor/antiviral immunity, and disorganized vasculature. Through a self-amplification that is dependent on multiple cancer-specific defects, these agents exhibit remarkable tumor selectivity. With several OVs completing or entering Phase III clinical evaluation, their therapeutic potential as well as the challenges ahead are increasingly clear. One key hurdle is tumor heterogeneity, which results in variations in the ability of tumors to support productive infection by OVs and to induce adaptive anti-tumor immunity. To this end, mounting evidence suggests tumor epigenetics may play a key role. This review will focus on the epigenetic landscape of tumors and how it relates to OV infection. Therapeutic strategies aiming to exploit the epigenetic identity of tumors in order to improve OV therapy are also discussed.
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spelling doaj.art-b70aa544e2a64ae1aa92ddab1e4193ac2022-12-22T03:10:47ZengFrontiers Media S.A.Frontiers in Genetics1664-80212013-09-01410.3389/fgene.2013.0018455401Exploiting tumor epigenetics to improve oncolytic virotherapyNicole E. Forbes0Nicole E. Forbes1Hesham eAbdelbary2Hesham eAbdelbary3Mathieu eLupien4Mathieu eLupien5John C. Bell6John C. Bell7Jean-Simon eDiallo8Jean-Simon eDiallo9Ottawa Hospital Research InstituteUniversity of OttawaOttawa Hospital Research InstituteUniversity of OttawaOntario Cancer Institute, Princess Margaret Cancer Center/University Health NetworkOntario Institute for Cancer ResearchOttawa Hospital Research InstituteUniversity of OttawaOttawa Hospital Research InstituteUniversity of OttawaOncolytic viruses (OVs) comprise a versatile and multi-mechanistic therapeutic platform in the growing arsenal of anticancer biologics. These replicating therapeutics find favorable conditions in the tumor niche, characterized among others by increased metabolism, reduced anti-tumor/antiviral immunity, and disorganized vasculature. Through a self-amplification that is dependent on multiple cancer-specific defects, these agents exhibit remarkable tumor selectivity. With several OVs completing or entering Phase III clinical evaluation, their therapeutic potential as well as the challenges ahead are increasingly clear. One key hurdle is tumor heterogeneity, which results in variations in the ability of tumors to support productive infection by OVs and to induce adaptive anti-tumor immunity. To this end, mounting evidence suggests tumor epigenetics may play a key role. This review will focus on the epigenetic landscape of tumors and how it relates to OV infection. Therapeutic strategies aiming to exploit the epigenetic identity of tumors in order to improve OV therapy are also discussed.http://journal.frontiersin.org/Journal/10.3389/fgene.2013.00184/fullAntigen PresentationOncolytic VirotherapyCancertumor heterogeneityEpigenetic ModulationAnti-Viral Response
spellingShingle Nicole E. Forbes
Nicole E. Forbes
Hesham eAbdelbary
Hesham eAbdelbary
Mathieu eLupien
Mathieu eLupien
John C. Bell
John C. Bell
Jean-Simon eDiallo
Jean-Simon eDiallo
Exploiting tumor epigenetics to improve oncolytic virotherapy
Frontiers in Genetics
Antigen Presentation
Oncolytic Virotherapy
Cancer
tumor heterogeneity
Epigenetic Modulation
Anti-Viral Response
title Exploiting tumor epigenetics to improve oncolytic virotherapy
title_full Exploiting tumor epigenetics to improve oncolytic virotherapy
title_fullStr Exploiting tumor epigenetics to improve oncolytic virotherapy
title_full_unstemmed Exploiting tumor epigenetics to improve oncolytic virotherapy
title_short Exploiting tumor epigenetics to improve oncolytic virotherapy
title_sort exploiting tumor epigenetics to improve oncolytic virotherapy
topic Antigen Presentation
Oncolytic Virotherapy
Cancer
tumor heterogeneity
Epigenetic Modulation
Anti-Viral Response
url http://journal.frontiersin.org/Journal/10.3389/fgene.2013.00184/full
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