Zika virus non-structural protein NS4A restricts eye growth in Drosophila through regulation of JAK/STAT signaling.

Disease Models & Mechanisms
Sneh HarshIoannis Eleftherianos

Abstract

To gain a comprehensive view of the changes in host gene expression underlying Zika virus (ZIKV) pathogenesis, we performed whole-genome RNA sequencing (RNA-seq) of ZIKV-infected Drosophila adult flies. RNA-seq analysis revealed that ZIKV infection alters several and diverse biological processes, including stress, locomotion, lipid metabolism, imaginal disc morphogenesis and regulation of JAK/STAT signaling. To explore the interaction between ZIKV infection and JAK/STAT signaling regulation, we generated genetic constructs overexpressing ZIKV-specific non-structural proteins NS2A, NS2B, NS4A and NS4B. We found that ectopic expression of non-structural proteins in the developing Drosophila eye significantly restricts growth of the larval and adult eye and correlates with considerable repression of the in vivo JAK/STAT reporter, 10XStat92E-GFP At the cellular level, eye growth defects are associated with reduced rate of proliferation without affecting the overall rate of apoptosis. In addition, ZIKV NS4A genetically interacts with the JAK/STAT signaling components; co-expression of NS4A along with the dominant-negative form of domeless or StatRNAi results in aggravated reduction in eye size, while co-expression of NS4A in HopTuml...Continue Reading

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Citations

Jul 8, 2020·Biomolecules·Jose L SalazarShinya Yamamoto
Dec 18, 2020·Frontiers in Immunology·Sneh Harsh, Ioannis Eleftherianos
Apr 4, 2021·International Journal of Molecular Sciences·J Michael HarnishShinya Yamamoto
Jun 15, 2021·Molecular and Cellular Biology·Joyce van de Leemput, Zhe Han

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Datasets Mentioned

BETA
GSE130108

Methods Mentioned

BETA
RNA-seq
PCR
transgenic
dissections

Software Mentioned

R
Prism
DAVID
ImageJ
RSeQC
GraphPad
Database for Annotation , Visualization and Integrated Discove...
Adobe Photoshop
Bioconductor package EdgeR
STAR

Related Concepts

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Apoptosis

Apoptosis is a specific process that leads to programmed cell death through the activation of an evolutionary conserved intracellular pathway leading to pathognomic cellular changes distinct from cellular necrosis