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Alphavirus-Induced Membrane Rearrangements During Replication, Assembly, and Budding

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Journal Pathogens
Date 2021 Aug 28
PMID 34451448
Citations 6
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Abstract

Alphaviruses are arthropod-borne viruses mainly transmitted by hematophagous insects that cause moderate to fatal disease in humans and other animals. Currently, there are no approved vaccines or antivirals to mitigate alphavirus infections. In this review, we summarize the current knowledge of alphavirus-induced structures and their functions in infected cells. Throughout their lifecycle, alphaviruses induce several structural modifications, including replication spherules, type I and type II cytopathic vacuoles, and filopodial extensions. Type I cytopathic vacuoles are replication-induced structures containing replication spherules that are sites of RNA replication on the endosomal and lysosomal limiting membrane. Type II cytopathic vacuoles are assembly induced structures that originate from the Golgi apparatus. Filopodial extensions are induced at the plasma membrane and are involved in budding and cell-to-cell transport of virions. This review provides an overview of the viral and host factors involved in the biogenesis and function of these virus-induced structures. Understanding virus-host interactions in infected cells will lead to the identification of new targets for antiviral discovery.

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References
1.
Nicola A, Chen W, Helenius A . Co-translational folding of an alphavirus capsid protein in the cytosol of living cells. Nat Cell Biol. 1999; 1(6):341-5. DOI: 10.1038/14032. View

2.
Martinez M, Kielian M . Intercellular Extensions Are Induced by the Alphavirus Structural Proteins and Mediate Virus Transmission. PLoS Pathog. 2016; 12(12):e1006061. PMC: 5158078. DOI: 10.1371/journal.ppat.1006061. View

3.
Dodonova S, Aderhold P, Kopp J, Ganeva I, Rohling S, Hagen W . 9Å structure of the COPI coat reveals that the Arf1 GTPase occupies two contrasting molecular environments. Elife. 2017; 6. PMC: 5482573. DOI: 10.7554/eLife.26691. View

4.
Tesh R, Watts D, Russell K, Damodaran C, Calampa C, Cabezas C . Mayaro virus disease: an emerging mosquito-borne zoonosis in tropical South America. Clin Infect Dis. 1999; 28(1):67-73. DOI: 10.1086/515070. View

5.
Jose J, Tang J, Taylor A, Baker T, Kuhn R . Fluorescent Protein-Tagged Sindbis Virus E2 Glycoprotein Allows Single Particle Analysis of Virus Budding from Live Cells. Viruses. 2015; 7(12):6182-99. PMC: 4690852. DOI: 10.3390/v7122926. View