Antiviral Molecular Mechanisms - Second Edition

A special issue of Viruses (ISSN 1999-4915). This special issue belongs to the section "Viral Immunology, Vaccines, and Antivirals".

Deadline for manuscript submissions: 30 September 2024 | Viewed by 379

Special Issue Editor


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Guest Editor
Department of Microbiology, Immunology & Transplantation, Rega Institute for Medical Research, LU Leuven, Leuven, Belgium
Interests: herpesviruses; poxviruses; DNA tumor viruses; antiviral agents; drug-resistance; 3D culture models
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Special Issue Information

Dear Colleagues,

The development of antivirals to combat viral infections is a long process requiring multidisciplinary approaches. Antiviral drug discovery is mainly focused on two different strategies: targeting the viral cycle or targeting host cell factors. A critical step in antiviral drug discovery includes basic virological research identifying potential viral or host targets. Analysis of the molecular mechanism of action of antivirals is fundamental for predicting and understanding side effects, drug interactions, and the emergence of resistance, for increasing the spectrum of activity, and for improving efficacy.

In the past few decades, the world has been confronted with several outbreaks caused by zoonotic viruses, including Ebola, Influenza A (H1N1), SARS, MERS, Zika virus, and SARS-CoV-2 (the cause of the ongoing COVID-19 pandemic), with a tremendous global impact on public health, society, and economy. Thousands of compounds, including newly synthesized molecules and repurposed drugs, are being investigated to fight against (re)emerging viral infections. Although computer simulation is an essential tool with which to elucidate conformational changes at the molecular level, it needs to be complemented by biological assays. Cell culture-based assays are commonly employed for hit identification and studies of the molecular mechanism of action. The use of extensive and appropriate molecular biological assays is fundamental for investigating in detail the viral replicative cycle, the molecular mechanisms of inhibition of antivirals, and the key molecular determinants of antiviral drug resistance, which will help in selecting the most promising antivirals for clinical use.

In this Special Issue, we welcome manuscripts that focus on an in-depth understanding of the molecular details of direct-acting antivirals as well as host-targeting inhibitors in relation to the virus cycle. This will assist the development of broad-spectrum antivirals (BSAAs), which can inhibit a range of viruses by targeting conserved viral replication processes and/or viral proteins, or alternatively by affecting commonly used host factors that are necessary for viral multiplication. BSAAs are important not only for the control of emerging and re-emerging diseases but also endemic viral pathogens (e.g., HBV and herpesviruses) that have been infecting and co-evolving with humans for centuries.

Prof. Dr. Graciela Andrei
Guest Editor

Manuscript Submission Information

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Keywords

  • direct-acting antiviral agents
  • host cell targets
  • broad-spectrum antiviral agents
  • (re)emerging viral infections
  • molecular mechanisms of antivirals
  • molecular mechanisms of drug resistance

Published Papers (1 paper)

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Research

16 pages, 3609 KiB  
Article
Evaluation of Bispecific T-Cell Engagers Targeting Murine Cytomegalovirus
by Hanna Menschikowski, Christopher Bednar, Sabrina Kübel, Manuel Hermann, Larissa Bauer, Marco Thomas, Arne Cordsmeier and Armin Ensser
Viruses 2024, 16(6), 869; https://doi.org/10.3390/v16060869 - 29 May 2024
Viewed by 217
Abstract
Human cytomegalovirus is a ubiquitous herpesvirus that, while latent in most individuals, poses a great risk to immunocompromised patients. In contrast to directly acting traditional antiviral drugs, such as ganciclovir, we aim to emulate a physiological infection control using T cells. For this, [...] Read more.
Human cytomegalovirus is a ubiquitous herpesvirus that, while latent in most individuals, poses a great risk to immunocompromised patients. In contrast to directly acting traditional antiviral drugs, such as ganciclovir, we aim to emulate a physiological infection control using T cells. For this, we constructed several bispecific T-cell engager (BiTE) constructs targeting different viral glycoproteins of the murine cytomegalovirus and evaluated them in vitro for their efficacy. To isolate the target specific effect without viral immune evasion, we established stable reporter cell lines expressing the viral target glycoprotein B, and the glycoprotein complexes gN-gM and gH-gL, as well as nano-luciferase (nLuc). First, we evaluated binding capacities using flow cytometry and established killing assays, measuring nLuc-release upon cell lysis. All BiTE constructs proved to be functional mediators for T-cell recruitment and will allow a proof of concept for this treatment option. This might pave the way for strikingly safer immunosuppression in vulnerable patient groups. Full article
(This article belongs to the Special Issue Antiviral Molecular Mechanisms - Second Edition)
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