Isolation and bioinformatics analysis of the NADC30_Like CJS01 strain of the porcine reproductive and respiratory syndrome virus

In this study, lung tissue was collected from nursery piglets suspected of being infected with porcine reproductive and respiratory syndrome virus (PRRSV) in a large‑scale pig farm in Sichuan, China. Polymerase chain reaction (PCR) and reverse transcription quantitative‑polymerase chain reaction (R...

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Main Authors: TENG TU, YIN WANG, CHANG YU LIAO, PENG FEI ZHANG, MING YUAN XIANG, ZE XIAO YANG, XUE PING YAO, YAN LUO
Format: Article
Language:English
Published: Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise G. Caporale 2022-11-01
Series:Veterinaria Italiana
Subjects:
Online Access:https://www.veterinariaitaliana.izs.it/index.php/VetIt/article/view/2182
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author TENG TU
YIN WANG
CHANG YU LIAO
PENG FEI ZHANG
MING YUAN XIANG
ZE XIAO YANG
XUE PING YAO
YAN LUO
author_facet TENG TU
YIN WANG
CHANG YU LIAO
PENG FEI ZHANG
MING YUAN XIANG
ZE XIAO YANG
XUE PING YAO
YAN LUO
author_sort TENG TU
collection DOAJ
description In this study, lung tissue was collected from nursery piglets suspected of being infected with porcine reproductive and respiratory syndrome virus (PRRSV) in a large‑scale pig farm in Sichuan, China. Polymerase chain reaction (PCR) and reverse transcription quantitative‑polymerase chain reaction (RT‑qPCR) methods were used to ensure that no other pathogens were present. Virus isolation was also carried out where the presence of PRRSV was determined by indirect immunoinfluscent assay (IFA). Compared with the common PRRSV strain, the isolate did not produce evident Cytopathic effect (CPE) in the early stage of isolation. CPE was found in the late stage, and the titer was 104.17 TCID50/0.1 mL. The strain was named CJS01. Bioinformatics analysis showed that it was a NADC30‑Like strain. The virus load was determined by measuring the nucleic acid load during the proliferation of the strain on Marc‑145 cells. The strain showed good adaptability on cells, and the virus proliferated on cells for 84 hr when the highest nucleic acid load was achieved. By recombinant analysis of ORF3~7 genes and prediction of its epitope, it was found that CJS01 strain might interfere with the immunesystem of the infected animals.
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spelling doaj.art-d6f9f1798521412ebd40c28397bb25792022-12-22T04:20:46ZengIstituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise G. CaporaleVeterinaria Italiana0505-401X1828-14272022-11-0158110.12834/VetIt.2182.14564.1Isolation and bioinformatics analysis of the NADC30_Like CJS01 strain of the porcine reproductive and respiratory syndrome virusTENG TUYIN WANGCHANG YU LIAOPENG FEI ZHANGMING YUAN XIANGZE XIAO YANGXUE PING YAOYAN LUO In this study, lung tissue was collected from nursery piglets suspected of being infected with porcine reproductive and respiratory syndrome virus (PRRSV) in a large‑scale pig farm in Sichuan, China. Polymerase chain reaction (PCR) and reverse transcription quantitative‑polymerase chain reaction (RT‑qPCR) methods were used to ensure that no other pathogens were present. Virus isolation was also carried out where the presence of PRRSV was determined by indirect immunoinfluscent assay (IFA). Compared with the common PRRSV strain, the isolate did not produce evident Cytopathic effect (CPE) in the early stage of isolation. CPE was found in the late stage, and the titer was 104.17 TCID50/0.1 mL. The strain was named CJS01. Bioinformatics analysis showed that it was a NADC30‑Like strain. The virus load was determined by measuring the nucleic acid load during the proliferation of the strain on Marc‑145 cells. The strain showed good adaptability on cells, and the virus proliferated on cells for 84 hr when the highest nucleic acid load was achieved. By recombinant analysis of ORF3~7 genes and prediction of its epitope, it was found that CJS01 strain might interfere with the immunesystem of the infected animals. https://www.veterinariaitaliana.izs.it/index.php/VetIt/article/view/2182Bioinformatics analysisIsolationPRRSV NADC30‑Like
spellingShingle TENG TU
YIN WANG
CHANG YU LIAO
PENG FEI ZHANG
MING YUAN XIANG
ZE XIAO YANG
XUE PING YAO
YAN LUO
Isolation and bioinformatics analysis of the NADC30_Like CJS01 strain of the porcine reproductive and respiratory syndrome virus
Veterinaria Italiana
Bioinformatics analysis
Isolation
PRRSV NADC30‑Like
title Isolation and bioinformatics analysis of the NADC30_Like CJS01 strain of the porcine reproductive and respiratory syndrome virus
title_full Isolation and bioinformatics analysis of the NADC30_Like CJS01 strain of the porcine reproductive and respiratory syndrome virus
title_fullStr Isolation and bioinformatics analysis of the NADC30_Like CJS01 strain of the porcine reproductive and respiratory syndrome virus
title_full_unstemmed Isolation and bioinformatics analysis of the NADC30_Like CJS01 strain of the porcine reproductive and respiratory syndrome virus
title_short Isolation and bioinformatics analysis of the NADC30_Like CJS01 strain of the porcine reproductive and respiratory syndrome virus
title_sort isolation and bioinformatics analysis of the nadc30 like cjs01 strain of the porcine reproductive and respiratory syndrome virus
topic Bioinformatics analysis
Isolation
PRRSV NADC30‑Like
url https://www.veterinariaitaliana.izs.it/index.php/VetIt/article/view/2182
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