A full-length infectious cDNA clone of Zika virus from the 2015 epidemic in Brazil as a genetic platform for studies of virus-host interactions and vaccine development

Konstantin A. Tsetsarkin, Heather Kenney, Rubing Chen, Guangping Liu, Hasmik Manukyan, Stephen S. Whitehead, Majid Laassri, Konstantin Chumakov, Alexander G. Pletnev

Research output: Contribution to journalArticle

62 Citations (Scopus)

Abstract

An arthropod-borne virus, Zika virus (ZIKV), has recently emerged as a major human pathogen. Associated with complications during perinatal development and Guillain-Barré syndrome in adults, ZIKV raises new challenges for understanding the molecular determinants of flavivirus pathogenesis. This underscores the necessity for the development of a reverse genetic system based on an epidemic ZIKV strain. Here, we describe the generation and characterization in cell cultures of an infectious cDNA clone of ZIKV isolated from the 2015 epidemic in Brazil. The cDNA-derived ZIKV replicated efficiently in a variety of cell lines, including those of both neuronal and placental origin. We observed that the growth of cDNA-derived virus was attenuated compared to the growth of the parental isolate in most cell lines, which correlates with substantial differences in sequence heterogeneity between these viruses that were determined by deep-sequencing analysis. Our findings support the role of genetic diversity in maintaining the replicative fitness of viral populations under changing conditions. Moreover, these results indicate that caution should be exercised when interpreting the results of reverse-genetics experiments in attempts to accurately predict the biology of natural viruses. Finally, a Vero cell-adapted cDNA clone of ZIKV was generated that can be used as a convenient platform for studies aimed at the development of ZIKV vaccines and therapeutics. IMPORTANCE The availability of genetic tools and laboratory models determines the progress in understanding mechanisms of virus emergence and pathogenesis. Recent large-scale outbreaks of Zika virus (ZIKV) that were linked to complications during perinatal development and Guillain-Barré syndrome in adults emphasize the urgency for the development of a reverse-genetics system based on an epidemic ZIKV strain. Here, we report a stable infectious cDNA clone for ZIKV isolated during the 2015 epidemic in Brazil, as well as a Vero cell-adapted version of it, which will be used for virus-host interaction studies and vaccine development.

Original languageEnglish (US)
Article numbere01114-16
JournalmBio
Volume7
Issue number4
DOIs
StatePublished - Jul 1 2016

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Brazil
Vaccines
Complementary DNA
Clone Cells
Viruses
Reverse Genetics
Vero Cells
Zika Virus
Arboviruses
Flavivirus
High-Throughput Nucleotide Sequencing
Cell Line
Growth
Disease Outbreaks
Cell Culture Techniques
Population

ASJC Scopus subject areas

  • Microbiology
  • Virology

Cite this

A full-length infectious cDNA clone of Zika virus from the 2015 epidemic in Brazil as a genetic platform for studies of virus-host interactions and vaccine development. / Tsetsarkin, Konstantin A.; Kenney, Heather; Chen, Rubing; Liu, Guangping; Manukyan, Hasmik; Whitehead, Stephen S.; Laassri, Majid; Chumakov, Konstantin; Pletnev, Alexander G.

In: mBio, Vol. 7, No. 4, e01114-16, 01.07.2016.

Research output: Contribution to journalArticle

Tsetsarkin, KA, Kenney, H, Chen, R, Liu, G, Manukyan, H, Whitehead, SS, Laassri, M, Chumakov, K & Pletnev, AG 2016, 'A full-length infectious cDNA clone of Zika virus from the 2015 epidemic in Brazil as a genetic platform for studies of virus-host interactions and vaccine development', mBio, vol. 7, no. 4, e01114-16. https://doi.org/10.1128/mBio.01114-16
Tsetsarkin, Konstantin A. ; Kenney, Heather ; Chen, Rubing ; Liu, Guangping ; Manukyan, Hasmik ; Whitehead, Stephen S. ; Laassri, Majid ; Chumakov, Konstantin ; Pletnev, Alexander G. / A full-length infectious cDNA clone of Zika virus from the 2015 epidemic in Brazil as a genetic platform for studies of virus-host interactions and vaccine development. In: mBio. 2016 ; Vol. 7, No. 4.
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