Evaluation of Different DNA Vaccines against Porcine Reproductive and Respiratory Syndrome (PRRS) in Pigs
In veterinary medicine, there have been different experiences with the plasmid DNA vaccination. In this area and with the hypothesis to demonstrate the effectiveness of different plasmids encoding porcine respiratory and reproductive syndrome (PRRS), five DNA vaccines against PRRS were evaluated for...
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2013-10-01
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doaj-60b897fb162e46cc9e21b9d148cc8c682020-11-24T20:48:06ZengMDPI AGVaccines2076-393X2013-10-011446348010.3390/vaccines1040463Evaluation of Different DNA Vaccines against Porcine Reproductive and Respiratory Syndrome (PRRS) in PigsMaura FerrariAugusto AmiciAttilio CorradiAnna Maria CantoniElena de AngelisStefano PetriniRiccardo VillaPaolo BorghettiGiorgio RamadoriIn veterinary medicine, there have been different experiences with the plasmid DNA vaccination. In this area and with the hypothesis to demonstrate the effectiveness of different plasmids encoding porcine respiratory and reproductive syndrome (PRRS), five DNA vaccines against PRRS were evaluated for their innocuity and efficacy in pigs. Eighteen animals were divided into five groups which were injected with five (A, B, C, D, E) different DNA vaccines. Albeit, none of the proposed vaccines were able to protect the animals against PRRS virus. Only vaccines A and B were able to reduce the clinical signs of the infection. ELISA IgM were detected 30 days after the first vaccination in the pigs injected by Vaccine A or B. ELISA IgG were detected 90 days after the first vaccination in the pigs injected by Vaccine B or C. Neutralizing antibody were detected Post Challenge Days 61 (PCD) in all groups. In the pigs inoculated with Vaccine C, IFN-g were detected 90 days after first vaccination, and after challenge exposure they increased. In the other groups, the IFN-g were detected after challenge infection. Pigs injected with each of the vaccines A, B, C, D and E showed a significantly higher level of CD4−CD8+ lymphocytes (p < 0.001) after infection in comparison with their controls.http://www.mdpi.com/2076-393X/1/4/463pigsDNA vaccinesPRRSORF4ORF5CpGUbilacINeuL |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Maura Ferrari Augusto Amici Attilio Corradi Anna Maria Cantoni Elena de Angelis Stefano Petrini Riccardo Villa Paolo Borghetti Giorgio Ramadori |
spellingShingle |
Maura Ferrari Augusto Amici Attilio Corradi Anna Maria Cantoni Elena de Angelis Stefano Petrini Riccardo Villa Paolo Borghetti Giorgio Ramadori Evaluation of Different DNA Vaccines against Porcine Reproductive and Respiratory Syndrome (PRRS) in Pigs Vaccines pigs DNA vaccines PRRS ORF4 ORF5 CpG UbilacI NeuL |
author_facet |
Maura Ferrari Augusto Amici Attilio Corradi Anna Maria Cantoni Elena de Angelis Stefano Petrini Riccardo Villa Paolo Borghetti Giorgio Ramadori |
author_sort |
Maura Ferrari |
title |
Evaluation of Different DNA Vaccines against Porcine Reproductive and Respiratory Syndrome (PRRS) in Pigs |
title_short |
Evaluation of Different DNA Vaccines against Porcine Reproductive and Respiratory Syndrome (PRRS) in Pigs |
title_full |
Evaluation of Different DNA Vaccines against Porcine Reproductive and Respiratory Syndrome (PRRS) in Pigs |
title_fullStr |
Evaluation of Different DNA Vaccines against Porcine Reproductive and Respiratory Syndrome (PRRS) in Pigs |
title_full_unstemmed |
Evaluation of Different DNA Vaccines against Porcine Reproductive and Respiratory Syndrome (PRRS) in Pigs |
title_sort |
evaluation of different dna vaccines against porcine reproductive and respiratory syndrome (prrs) in pigs |
publisher |
MDPI AG |
series |
Vaccines |
issn |
2076-393X |
publishDate |
2013-10-01 |
description |
In veterinary medicine, there have been different experiences with the plasmid DNA vaccination. In this area and with the hypothesis to demonstrate the effectiveness of different plasmids encoding porcine respiratory and reproductive syndrome (PRRS), five DNA vaccines against PRRS were evaluated for their innocuity and efficacy in pigs. Eighteen animals were divided into five groups which were injected with five (A, B, C, D, E) different DNA vaccines. Albeit, none of the proposed vaccines were able to protect the animals against PRRS virus. Only vaccines A and B were able to reduce the clinical signs of the infection. ELISA IgM were detected 30 days after the first vaccination in the pigs injected by Vaccine A or B. ELISA IgG were detected 90 days after the first vaccination in the pigs injected by Vaccine B or C. Neutralizing antibody were detected Post Challenge Days 61 (PCD) in all groups. In the pigs inoculated with Vaccine C, IFN-g were detected 90 days after first vaccination, and after challenge exposure they increased. In the other groups, the IFN-g were detected after challenge infection. Pigs injected with each of the vaccines A, B, C, D and E showed a significantly higher level of CD4−CD8+ lymphocytes (p < 0.001) after infection in comparison with their controls. |
topic |
pigs DNA vaccines PRRS ORF4 ORF5 CpG UbilacI NeuL |
url |
http://www.mdpi.com/2076-393X/1/4/463 |
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