The Establishment of Infectious Clone and Single Round Infectious Particles for Coxsackievirus A10.

Virologica Sinica
Min WangShuye Zhang

Abstract

Coxsackievirus A10 (CVA10) is one of the major etiological agents of hand, foot, and mouth disease. There are no vaccine and antiviral drugs for controlling CVA10 infection. Reverse genetic tools for CVA10 will benefit its mechanistic study and development of vaccines and antivirals. Here, two infectious clones for the prototype and a Myc-tagged CVA10 were constructed. Viable CVA10 viruses were harvested by transfecting the viral mRNA into human rhabdomyosarcoma (RD) cells. Rescued CVA10 was further confirmed by next generation sequencing and characterized experimentally. We also constructed the vectors for CVA10 subgenomic replicon with luciferase reporter and viral capsid with EGFP reporter, respectively. Co-transfection of the viral replicon RNA and capsid expresser in human embryonic kidney 293T (HEK293T) cells led to the production of single round infectious particles (SRIPs). Based on CVA10 replicon RNA, SRIPs with either the enterovirus A71 (EVA71) capsid or the CVA10 capsid were generated. Infection by EVA71 SRIPs required SCARB2, while CVA10 SRIPs did not. Finally, we showed great improvement of the replicon activity and SRIPs production by insertion of a cis-active hammerhead ribozyme (HHRib) before the 5'-untranslate...Continue Reading

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Citations

Aug 9, 2020·The Journal of General Virology·Min WangShuye Zhang
Aug 13, 2021·Expert Opinion on Drug Discovery·Chih-Yeu Fang, Chia-Chyi Liu

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Datasets Mentioned

BETA
AY421767.1

Methods Mentioned

BETA
in
electrophoresis
transfection
Illumina sequencing
electron microscopy
protein assay
in vitro transcription

Software Mentioned

GraphPad Prism

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