ArticleFrontiers in immunology2024
Maternal immunization and vitamin A sufficiency impact sow primary adaptive immunity and passive protection to nursing piglets against porcine epidemic diarrhea virus infection.
Article in Frontiers in immunology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed.
- Article
- Overcoming Antigenic Drift in PEDV: Broadly Protective Antigen Design and sIgA-Driven Lactogenic Immunity.Veterinary sciences · 2026Review
- Development of a Mucosal Immune-Enhancing Oral Vaccine Candidate Against Porcine Epidemic Diarrhea Virus UsingAnimals : an open access journal from MDPI · 2026Article
- Natural Products as Potential Resource Library for Control of Major Swine Enteric Viruses.Transboundary and emerging diseases · 2026Review
- A Self-Amplifying RNA Lipid Nanoparticle (saRNA-LNP) Vaccine Provides Effective Protection Against Porcine Epidemic Diarrhea.Transboundary and emerging diseases · 2026Article
- A Systematic Review and Meta-Analysis of Porcine Epidemic Diarrhea Virus Vaccine Efficacy and Its Modifiers.Animals : an open access journal from MDPI · 2025Review
- A novel nanoparticle vaccine, based on S1-CTD, elicits robust protective immune responses against porcine deltacoronavirus.Journal of virology · 2025Article
- Lactoferrin exhibits PEDV antiviral activity by interfering with spike-heparan sulfate proteoglycans binding and activating mucosal immune response.Veterinary research · 2025Article
- The effect of late gestation injectable vitamin A and D supplementation on sow and piglet performance.Translational animal science · 2025Article
- Development of an Indirect ELISA Based on the PEDV S Protein and Evaluation of Its Correlation With Neutralizing Antibody and Immune Protection.Transboundary and emerging diseases · 2025Article
- Role of micronutrition in patients with oral cancer and nutritional intervention strategies.Frontiers in nutrition · 2025Review
- The Effect of Vitamins on the Immune Systems of Pigs.Animals : an open access journal from MDPI · 2024Review
Corrections and comments
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Authors and funding
10 authors.
Funding
Abstract
Porcine epidemic diarrhea virus (PEDV) causes a highly contagious enteric disease with major economic losses to swine production worldwide. Due to the immaturity of the neonatal piglet immune system and given the high virulence of PEDV, improving passive lactogenic immunity is the best approach to protect suckling piglets against the lethal infection. We tested whether oral vitamin A (VA) supplementation and PEDV exposure of gestating and lactating VA-deficient (VAD) sows would enhance their primary immune responses and boost passive lactogenic protection against the PEDV challenge of their piglets. We demonstrated that PEDV inoculation of pregnant VAD sows in the third trimester provided higher levels of lactogenic protection of piglets as demonstrated by >87% survival rates of their litters compared with <10% in mock litters and that VA supplementation to VAD sows further improved the piglets' survival rates to >98%. We observed significantly elevated PEDV IgA and IgG antibody (Ab) titers and Ab-secreting cells (ASCs) in VA-sufficient (VAS)+PEDV and VAD+VA+PEDV sows, with the latter maintaining higher Ab titers in blood prior to parturition and in blood and milk throughout lactation. The litters of VAD+VA+PEDV sows also had the highest serum PEDV-neutralizing Ab titers at piglet post-challenge days (PCD) 0 and 7, coinciding with higher PEDV IgA ASCs and Ab titers in the blood and milk of their sows, suggesting an immunomodulatory role of VA in sows. Thus, sows that delivered sufficient lactogenic immunity to their piglets provided the highest passive protection against the PEDV challenge. Maternal immunization during pregnancy (± VA) and VA sufficiency enhanced the sow primary immune responses, expression of gut-mammary gland trafficking molecules, and passive protection of their offspring. Our findings are relevant to understanding the role of VA in the Ab responses to oral attenuated vaccines that are critical for successful maternal vaccination programs against enteric infections in infants and young animals.
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