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Efficient rescue of foot-and-mouth disease virus in cultured cells transfected with RNA extracted from clinical samples

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Title Efficient rescue of foot-and-mouth disease virus in cultured cells transfected with RNA extracted from clinical samples
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Creator Punam Bisht
Jajati K Mohapatra
Saravanan Subramaniam
Biswajit Das
Veena Pande
Jitendra K Biswal
Gaurav K Sharma
Manoranjan Rout
Rajeev Ranjan
Bana B Dash
Aniket Sanyal
Bramhadev Pattnaik
 
Subject Foot-and-mouth diseaseRNA transfectionChemical methodRescue of virus
 
Description Not Available
In this study, an RNA transfection was used to rescue infectious foot-and-mouth disease (FMD) virus from clinical samples in BHK-21 cell line for diagnosis of FMD. Tissue samples (n = 190) were subjected to FMD virus isolation by conventional cell culture and also by RNA transfection. FMD virus was isolated from 62% of the clinical samples by RNA transfection, whereas virus was isolated only from 16% of the clinical samples in conventional cell culture method, suggesting better performance of the RNA transfection. Virus was rescued from 67% and 10% of ELISA negative but multiplex PCR positive samples by RNA transfection and conventional cell culture, respectively. The efficiency of transfection was studied on clinical samples subjected to temperature as high as 37 °C and varying pH (pH 4–9). Except up to 1 week of storage at 4 °C at pH 7.5, virus isolation was not possible by cell culture. Virus was rescued by transfection from samples stored at 4 °C for any of the applied pH up to 4 weeks, and when stored at 37 °C virus could be rescued up to 4 weeks at pH 7.5 suggesting the fitness of transfection to isolate virus from clinical samples stored under inappropriate conditions. The sequence data and antigenic relationships with the vaccine strains, between virus rescued by transfection and conventional cell culture, were comparable. The RNA transfection will help to increase the efficiency of virus isolation, diagnosis and molecular epidemiological studies.
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Date 2021-07-30T05:54:26Z
2021-07-30T05:54:26Z
2013-11-13
 
Type Research Paper
 
Identifier Not Available
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http://krishi.icar.gov.in/jspui/handle/123456789/51423
 
Language English
 
Relation Not Available;
 
Publisher Elsevier