Characterisation of Zika virus infection in primary human astrocytes

The recent Zika virus (ZIKV) outbreak has linked ZIKV with microcephaly and other central nervous system pathologies in humans. Astrocytes are among the first cells to respond to ZIKV infection in the brain and are also targets for virus infection. In this study, we investigated the interaction betw...

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Bibliographic Details
Published in:BMC neuroscience 2018-02, Vol.19 (1), p.5-5, Article 5
Main Authors: Stefanik, Michal, Formanova, Petra, Bily, Tomas, Vancova, Marie, Eyer, Ludek, Palus, Martin, Salat, Jiri, Braconi, Carla Torres, Zanotto, Paolo M de A, Gould, Ernest A, Ruzek, Daniel
Format: Article
Language:English
Subjects:
Astrocyte
Astrocytes
Astrocytes - virology
Brain - virology
Cells, Cultured
Cytokines - metabolism
Electron tomography
Endoplasmic Reticulum - virology
Flavivirus
Humans
Immune response
Luminex
Physiological aspects
Zika virus
Zika Virus - pathogenicity
Zika Virus Infection - virology
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Summary:The recent Zika virus (ZIKV) outbreak has linked ZIKV with microcephaly and other central nervous system pathologies in humans. Astrocytes are among the first cells to respond to ZIKV infection in the brain and are also targets for virus infection. In this study, we investigated the interaction between ZIKV and primary human brain cortical astrocytes (HBCA). HBCAs were highly sensitive to representatives of both Asian and African ZIKV lineages and produced high viral yields. The infection was associated with limited immune cytokine/chemokine response activation; the highest increase of expression, following infection, was seen in CXCL-10 (IP-10), interleukin-6, 8, 12, and CCL5 (RANTES). Ultrastructural changes in the ZIKV-infected HBCA were characterized by electron tomography (ET). ET reconstructions elucidated high-resolution 3D images of the proliferating and extensively rearranged endoplasmic reticulum (ER) containing viral particles and virus-induced vesicles, tightly juxtaposed to collapsed ER cisternae. The results confirm that human astrocytes are sensitive to ZIKV infection and could be a source of proinflammatory cytokines in the ZIKV-infected brain tissue.
ISSN:1471-2202
1471-2202
DOI:10.1186/s12868-018-0407-2