Targeting Cell Cycle Facilitates E1A-Independent Adenoviral Replication.


Journal

Journal of virology
ISSN: 1098-5514
Titre abrégé: J Virol
Pays: United States
ID NLM: 0113724

Informations de publication

Date de publication:
29 06 2023
Historique:
medline: 3 7 2023
pubmed: 23 5 2023
entrez: 23 5 2023
Statut: ppublish

Résumé

DNA replication of E1-deleted first-generation adenoviruses (AdV) in cultured cancer cells has been reported repeatedly and it was suggested that certain cellular proteins could functionally compensate for E1A, leading to the expression of the early region 2 (E2)-encoded proteins and subsequently virus replication. Referring to this, the observation was named E1A-like activity. In this study, we investigated different cell cycle inhibitors with respect to their ability to increase viral DNA replication of dl70-3, an E1-deleted adenovirus. Our analyses of this issue revealed that in particular inhibition of cyclin-dependent kinases 4/6 (CDK4/6i) increased E1-independent adenovirus E2-expression and viral DNA replication. Detailed analysis of the E2-expression in dl70-3 infected cells by RT-qPCR showed that the increase in E2-expression originated from the E2-early promoter. Mutations of the two E2F-binding sites in the E2-early promoter (pE2early-LucM) caused a significant reduction in E2-early promoter activity in

Identifiants

pubmed: 37219458
doi: 10.1128/jvi.00370-23
pmc: PMC10308897
doi:

Substances chimiques

Adenovirus E1A Proteins 0
DNA, Viral 0
Protein Kinase Inhibitors 0

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

e0037023

Déclaration de conflit d'intérêts

The authors declare a conflict of interest. P.S.H. is co-founder of XVir Therapeutics GmbH. All other authors declare that they have no competing interests.

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Auteurs

Maximilian Ehrenfeld (M)

Department of Urology, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany.

Felicia Segeth (F)

Department of Oral and Maxillofacial Surgery, Medical University of Innsbruck, Innsbruck, Austria.
Department of Molecular Biology, Leopold-Franzens-Universität Innsbruck, Austria.

Klaus Mantwill (K)

Department of Urology, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany.

Corinna Brockhaus (C)

Department of Urology, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany.

Yuling Zhao (Y)

Department of Urology, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany.

Christian Ploner (C)

Department of Plastic, Reconstructive and Aesthetic Surgery, Medical University of Innsbruck, Innsbruck, Austria.

Andreas Kolk (A)

Department of Oral and Maxillofacial Surgery, Medical University of Innsbruck, Innsbruck, Austria.

Jürgen E Gschwend (JE)

Department of Urology, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany.

Roman Nawroth (R)

Department of Urology, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany.

Per Sonne Holm (PS)

Department of Urology, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany.
Department of Oral and Maxillofacial Surgery, Medical University of Innsbruck, Innsbruck, Austria.
XVir Therapeutics GmbH, Munich, Germany.

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