Immunogenicity of a recombinant hemagglutinin neuraminidase-Porcine rubulavirus produced by Escherichia coli of Porcine rubulavirus gives protective immunity of litter after challenge

Porcine rubulavirus (PRV) is a contagious virus that affects the Mexican swine industry. This work aimed to evaluate the immunogenicity of an recombinant hemagglutinin neuraminidase-Porcine rubulavirus (rHN-PorPV) candidate vaccine on pregnant sows, and the protective efficacy afforded to their 7-da...

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Veröffentlicht in:Journal of Veterinary Medical Science 2022, Vol.84(12), pp.1595-1604
Hauptverfasser: CUEVAS-ROMERO, Julieta Sandra, CERRITEÑO-SÁNCHEZ, José Luis, LARA-ROMERO, Rocío, VEGA-LÓPEZ, Marco Antonio, RAMÍREZ-ESTUDILLO, Carmen, RAMÍREZ-MENDOZA, Humberto, BERG, Mikael, LÖVGREN-BENGTSSON, Karin
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container_issue 12
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container_title Journal of Veterinary Medical Science
container_volume 84
creator CUEVAS-ROMERO, Julieta Sandra
CERRITEÑO-SÁNCHEZ, José Luis
LARA-ROMERO, Rocío
VEGA-LÓPEZ, Marco Antonio
RAMÍREZ-ESTUDILLO, Carmen
RAMÍREZ-MENDOZA, Humberto
BERG, Mikael
LÖVGREN-BENGTSSON, Karin
description Porcine rubulavirus (PRV) is a contagious virus that affects the Mexican swine industry. This work aimed to evaluate the immunogenicity of an recombinant hemagglutinin neuraminidase-Porcine rubulavirus (rHN-PorPV) candidate vaccine on pregnant sows, and the protective efficacy afforded to their 7-day-old suckling piglets against PRV lethal challenge. Three sows were immunized with rHN-PorPV formulated with immune-stimulating complex (ISCOMs) and two sows with rHN-PorPV protein alone as well as a mock-immunized pregnant sow (negative control). Quantitative ELISA detected a high concentration of anti-rHN-PorPV Immunoglobulin G (IgG) antibodies in sow sera after the second dose of vaccine administered on day 14 until farrowing, showing viral-neutralizing and cross-neutralization activity against different variants of PRV. Sera samples from piglets of immunized sows (with or without adjuvant), showed high concentrations of IgG antibodies. As expected, piglets from the negative control sow (n=5), exhibited severe signs of disease and 100% of mortality after PRV challenge study. Conversely, 75% and 87.5% of the piglets born from the rHN-PorPV and the rHN-PorPV-ISCOMs-immunized sows (n=8), survived, respectively, showing milder PRV clinical signs. Our data indicate that rHN-PorPV candidate vaccine produced in Escherichia coli induces efficient humoral response in pregnant sows and that the maternally derived immunity provides high protection to suckling piglets against PRV lethal challenge.
doi_str_mv 10.1292/jvms.22-0207
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This work aimed to evaluate the immunogenicity of an recombinant hemagglutinin neuraminidase-Porcine rubulavirus (rHN-PorPV) candidate vaccine on pregnant sows, and the protective efficacy afforded to their 7-day-old suckling piglets against PRV lethal challenge. Three sows were immunized with rHN-PorPV formulated with immune-stimulating complex (ISCOMs) and two sows with rHN-PorPV protein alone as well as a mock-immunized pregnant sow (negative control). Quantitative ELISA detected a high concentration of anti-rHN-PorPV Immunoglobulin G (IgG) antibodies in sow sera after the second dose of vaccine administered on day 14 until farrowing, showing viral-neutralizing and cross-neutralization activity against different variants of PRV. Sera samples from piglets of immunized sows (with or without adjuvant), showed high concentrations of IgG antibodies. As expected, piglets from the negative control sow (n=5), exhibited severe signs of disease and 100% of mortality after PRV challenge study. Conversely, 75% and 87.5% of the piglets born from the rHN-PorPV and the rHN-PorPV-ISCOMs-immunized sows (n=8), survived, respectively, showing milder PRV clinical signs. 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Vet. Med. Sci.</addtitle><date>2022</date><risdate>2022</risdate><volume>84</volume><issue>12</issue><spage>1595</spage><epage>1604</epage><pages>1595-1604</pages><artnum>22-0207</artnum><issn>0916-7250</issn><issn>1347-7439</issn><eissn>1347-7439</eissn><abstract>Porcine rubulavirus (PRV) is a contagious virus that affects the Mexican swine industry. This work aimed to evaluate the immunogenicity of an recombinant hemagglutinin neuraminidase-Porcine rubulavirus (rHN-PorPV) candidate vaccine on pregnant sows, and the protective efficacy afforded to their 7-day-old suckling piglets against PRV lethal challenge. Three sows were immunized with rHN-PorPV formulated with immune-stimulating complex (ISCOMs) and two sows with rHN-PorPV protein alone as well as a mock-immunized pregnant sow (negative control). 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subjects Animal and Dairy Science
Animals
Antibodies, Viral
Clinical Science
Colostrum
E coli
Enzyme-linked immunosorbent assay
Escherichia coli
Escherichia coli - genetics
Escherichia coli Infections - veterinary
Exo-a-sialidase
Female
hemagglutinin-neuraminidase
Hemagglutinins
Hogs
Husdjursvetenskap
Immune response (humoral)
immune-stimulating complex
Immunogenicity
Immunoglobulin G
ISCOMS
Klinisk vetenskap
Neuraminidase - genetics
Porcine rubulavirus
Pregnancy
recombinant vaccine
Suckling behavior
Swine
Swine Diseases
Vaccines
Viral Proteins
Virology
title Immunogenicity of a recombinant hemagglutinin neuraminidase-Porcine rubulavirus produced by Escherichia coli of Porcine rubulavirus gives protective immunity of litter after challenge
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