Cellular resistance to an oncolytic virus is driven by chronic activation of innate immunity

Summary: The emergence of cellular resistances to oncolytic viruses is an underexplored process that could compromise the efficacy of cancer virotherapy. Here, we isolated and characterized B16 mouse melanoma cells that evolved resistance to an oncolytic vesicular stomatitis virus (VSV-D51). RNA-seq...

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Main Authors: Alejandra Larrieux, Rafael Sanjuán
Format: Article
Language:English
Published: Elsevier 2023-01-01
Series:iScience
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2589004222020223
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author Alejandra Larrieux
Rafael Sanjuán
author_facet Alejandra Larrieux
Rafael Sanjuán
author_sort Alejandra Larrieux
collection DOAJ
description Summary: The emergence of cellular resistances to oncolytic viruses is an underexplored process that could compromise the efficacy of cancer virotherapy. Here, we isolated and characterized B16 mouse melanoma cells that evolved resistance to an oncolytic vesicular stomatitis virus (VSV-D51). RNA-seq revealed that resistance was associated to broad changes in gene expression, which typically involved chronic upregulation of interferon-stimulated genes. Innate immunity activation was maintained in the absence of the virus or other infection signals, and conferred cross-resistance to wild-type VSV and the unrelated Sindbis virus. Furthermore, we identified differentially expressed genes with no obvious role in antiviral immunity, such as Mnda, Psmb8 and Btn2a2, suggesting novel functions for these genes. Transcriptomic changes associated to VSV resistance were similar among B16 clones and in some clones derived from the mouse colon carcinoma cell line CT26, suggesting that oncolytic virus resistance involves certain conserved mechanisms and is therefore a potentially predictable process.
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spelling doaj.art-8765603c9a8646f187c79bdb371b89352023-01-22T04:40:43ZengElsevieriScience2589-00422023-01-01261105749Cellular resistance to an oncolytic virus is driven by chronic activation of innate immunityAlejandra Larrieux0Rafael Sanjuán1Institute for Integrative Systems Biology (I2SysBio), Universitat de València-CSIC, Paterna, València 46980, SpainInstitute for Integrative Systems Biology (I2SysBio), Universitat de València-CSIC, Paterna, València 46980, Spain; Corresponding authorSummary: The emergence of cellular resistances to oncolytic viruses is an underexplored process that could compromise the efficacy of cancer virotherapy. Here, we isolated and characterized B16 mouse melanoma cells that evolved resistance to an oncolytic vesicular stomatitis virus (VSV-D51). RNA-seq revealed that resistance was associated to broad changes in gene expression, which typically involved chronic upregulation of interferon-stimulated genes. Innate immunity activation was maintained in the absence of the virus or other infection signals, and conferred cross-resistance to wild-type VSV and the unrelated Sindbis virus. Furthermore, we identified differentially expressed genes with no obvious role in antiviral immunity, such as Mnda, Psmb8 and Btn2a2, suggesting novel functions for these genes. Transcriptomic changes associated to VSV resistance were similar among B16 clones and in some clones derived from the mouse colon carcinoma cell line CT26, suggesting that oncolytic virus resistance involves certain conserved mechanisms and is therefore a potentially predictable process.http://www.sciencedirect.com/science/article/pii/S2589004222020223Molecular physiologyImmunologyVirology
spellingShingle Alejandra Larrieux
Rafael Sanjuán
Cellular resistance to an oncolytic virus is driven by chronic activation of innate immunity
iScience
Molecular physiology
Immunology
Virology
title Cellular resistance to an oncolytic virus is driven by chronic activation of innate immunity
title_full Cellular resistance to an oncolytic virus is driven by chronic activation of innate immunity
title_fullStr Cellular resistance to an oncolytic virus is driven by chronic activation of innate immunity
title_full_unstemmed Cellular resistance to an oncolytic virus is driven by chronic activation of innate immunity
title_short Cellular resistance to an oncolytic virus is driven by chronic activation of innate immunity
title_sort cellular resistance to an oncolytic virus is driven by chronic activation of innate immunity
topic Molecular physiology
Immunology
Virology
url http://www.sciencedirect.com/science/article/pii/S2589004222020223
work_keys_str_mv AT alejandralarrieux cellularresistancetoanoncolyticvirusisdrivenbychronicactivationofinnateimmunity
AT rafaelsanjuan cellularresistancetoanoncolyticvirusisdrivenbychronicactivationofinnateimmunity