Immunization of BALB/c mice with DNA encoding equine herpesvirus 1 (EHV-1) glycoprotein D affords partial protection in a model of EHV-1-induced abortion
| Autor: | K. M. Ruitenberg, C Walker, Daria N. Love, J. Millar Whalley |
|---|---|
| Rok vydání: | 2000 |
| Předmět: |
Male
Equine herpesvirus 1 Antibodies Viral medicine.disease_cause Microbiology Herpesviridae Virus BALB/c DNA vaccination Mice Pregnancy Vaccines DNA medicine Animals Vector (molecular biology) Maternal-Fetal Exchange Mice Inbred BALB C General Veterinary biology Herpesviridae Infections General Medicine Abortion Veterinary biology.organism_classification Virology Vaccination Disease Models Animal Immunization DNA Viral Female Herpesvirus 1 Equid |
| Zdroj: | Veterinary Microbiology. 76:211-220 |
| ISSN: | 0378-1135 |
| Popis: | DNA-mediated immunization was assessed in a murine model of equine herpesvirus 1 (EHV-1) abortion. Whilst there are differences between the model and natural infection in the horse, literature suggests that EHV-1 infection of pregnant mice can be used to assess the potential ability of vaccine candidates to protect against abortion. Female BALB/c mice were inoculated twice, 4 weeks apart, with an expression vector encoding EHV-1 glycoprotein D (gD DNA). They were mated 15 days after the second inoculation, challenged at day 15 of pregnancy and killed 3 days later. The gD DNA-inoculated mice had fewer foetuses which were damaged or had died in utero (6% in gD DNA, 21% vector DNA and 28% in nil inoculated groups challenged with EHV-1), a reduction in the stunting effect of EHV-1 infection on foetuses (gD DNA: 0.40g+/-0.06, vector DNA: 0.34g+/-0.10), reduced placental and herpesvirus-specific lung histopathology and a lower titre of virus (TCID(50)+/-SEM/lung) in maternal lung than control groups (gD DNA 4.7+/-0.3, vector 5.3+/-0.2, nil 5.6+/-0.2). Maternal antibody to EHV-1 gD was demonstrated in pups born to a dam inoculated 123 days earlier with gD DNA. Although protection from abortion was incomplete, immunization of mice with gD DNA demonstrated encouragingly the potential of this vaccine strategy. |
| Databáze: | OpenAIRE |
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