Poxvirus-encoded DNA replication proteins : potential targets for antivirals
In the spring of 2022, an epidemic due to human monkeypox virus (MPXV) of unprecedented magnitude spread across all continents. Although this event was surprising in its suddenness, the resurgence of a virus from the Poxviridae family is not surprising in a world population that has been largely naïve to these viruses since the eradication of the smallpox virus in 1980 and the concomitant cessation of vaccination. Since then, a vaccine and two antiviral compounds have been developed to combat a possible return of smallpox. However, the use of these treatments during the 2022 MPXV epidemic showed certain limitations, indicating the importance of continuing to develop the therapeutic arsenal against these viruses. For several decades, efforts to understand the molecular mechanisms involved in the synthesis of the DNA genome of these viruses have been ongoing. Although many questions remain unanswered up to now, the three-dimensional structures of essential proteins, and in particular of the DNA polymerase holoenzyme in complex with DNA, make it possible to consider the development of a model for poxvirus DNA replication. In addition, these structures are valuable tools for the development of new antivirals targeting viral genome synthesis. This review will first present the molecules approved for the treatment of poxvirus infections, followed by a review of our knowledge of the replication machinery of these viruses. Finally, we will describe how these proteins could be the target of new antiviral compounds.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:28 |
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| Enthalten in: |
Virologie (Montrouge, France) - 28(2024), 1 vom: 01. Feb., Seite 23-35 |
| Sprache: |
Französisch |
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| Weiterer Titel: |
Le complexe de réplication des poxvirus : cible potentielle de molécules antivirales |
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| Beteiligte Personen: |
Tarbouriech, Nicolas [VerfasserIn] |
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| Links: |
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| Themen: |
9007-49-2 |
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| Anmerkungen: |
Date Completed 08.03.2024 Date Revised 08.03.2024 published: Print Citation Status MEDLINE |
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| doi: |
10.1684/vir.2024.1033 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 520 | |a In the spring of 2022, an epidemic due to human monkeypox virus (MPXV) of unprecedented magnitude spread across all continents. Although this event was surprising in its suddenness, the resurgence of a virus from the Poxviridae family is not surprising in a world population that has been largely naïve to these viruses since the eradication of the smallpox virus in 1980 and the concomitant cessation of vaccination. Since then, a vaccine and two antiviral compounds have been developed to combat a possible return of smallpox. However, the use of these treatments during the 2022 MPXV epidemic showed certain limitations, indicating the importance of continuing to develop the therapeutic arsenal against these viruses. For several decades, efforts to understand the molecular mechanisms involved in the synthesis of the DNA genome of these viruses have been ongoing. Although many questions remain unanswered up to now, the three-dimensional structures of essential proteins, and in particular of the DNA polymerase holoenzyme in complex with DNA, make it possible to consider the development of a model for poxvirus DNA replication. In addition, these structures are valuable tools for the development of new antivirals targeting viral genome synthesis. This review will first present the molecules approved for the treatment of poxvirus infections, followed by a review of our knowledge of the replication machinery of these viruses. Finally, we will describe how these proteins could be the target of new antiviral compounds | ||
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