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Published on: September 13, 2018
Tracking Mechanisms of Viral Dissemination In Vivo
Raphael Gaudin1, Jacky G Goetz2
1Institut de Recherche en Infectiologie de Montpellier (IRIM), CNRS, 34293 Montpellier, France; Université de Montpellier, 34090 Montpellier, France.
Abstract:
Dissemination and replication of viruses into hosts is a multistep process where viral particles infect, navigate, and indoctrinate various cell types. Viruses can reach tissues that are distant from their infection site by subverting subcellular mechanisms in ways that are, sometimes, disruptive. Modeling these steps, at appropriate resolution and within animal models, is cumbersome. Yet, mimicking these strategies in vitro fails to recapitulate the complexity of the cellular ecosystem. Here, we will discuss relevant in vivo platforms to dissect the cellular and molecular programs governing viral dissemination and briefly discuss organoid and ex vivo alternatives. We will focus on the zebrafish model and will describe how it provides a transparent window to unravel new cellular mechanisms of viral dissemination in vivo.
Insights
Studying viral dissemination in vivo is challenging, but the zebrafish model offers a transparent platform to investigate cellular mechanisms of viral spread and replication within a complex ecosystem.
Area of Science:
- Virology
- Cell Biology
- Animal Models
Background:
- Viral dissemination involves complex, multi-step processes of infection, navigation, and cellular indoctrination.
- Modeling viral spread in vitro often fails to capture the intricate cellular ecosystem dynamics.
- In vivo animal models are crucial but can be cumbersome to study viral dissemination at high resolution.
Purpose of the Study:
- To discuss in vivo platforms for dissecting viral dissemination.
- To explore cellular and molecular programs governing viral spread.
- To highlight the advantages of the zebrafish model for studying viral dissemination.
Main Methods:
- Review of in vivo platforms for studying viral dissemination.
- Discussion of organoid and ex vivo alternatives.
- Focus on the zebrafish model as a transparent in vivo system.
Main Results:
- The zebrafish model provides a transparent window for in vivo observation.
- It enables the unraveling of novel cellular mechanisms of viral dissemination.
- It aids in understanding viral spread within a complex biological system.
Conclusions:
- In vivo models, particularly zebrafish, are essential for understanding viral dissemination.
- The zebrafish model facilitates the discovery of new cellular strategies used by viruses.
- This approach overcomes limitations of in vitro and less transparent in vivo models.
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