Linked Life Data

8383383

Source:http://linkedlifedata.com/resource/pubmed/id/8383383

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1993-4-8
pubmed:abstractText
Virus-neutralizing monoclonal antibodies specific for the hexon of haemorrhagic enteritis virus (HEV), a turkey adenovirus, were examined for their ability to confer passive protection against haemorrhagic enteritis (HE) in turkeys. A high dose of antibody prevented clinical disease and reduced virus replication in experimentally infected birds. This suggests that virus neutralization might be an important mechanism for protection against HE. Subsequently, the use of the hexon protein as a subunit vaccine was investigated by immunizing birds with affinity-purified HEV hexon. The birds were tested for the appearance of hexon-specific antibodies in their sera, for protection from clinical disease, and prevention of virus replication after challenge with virulent HEV (HEV-V). Regardless of whether birds were immunized with native or denatured hexon, high ELISA antibody titres were produced to each immunogen. A virus-neutralizing antibody response was induced by immunization with the native hexon but not by immunization with the denatured protein. All turkeys twice immunized with a dose of at least 1 microgram, and four out of five birds immunized with two doses of 0.3 micrograms of purified native hexon, were protected against virus-induced disease and virus replication. In contrast, birds inoculated with denatured hexon were not protected. These results demonstrate the importance of the native (trimeric) structure of the hexon protein for eliciting a protective immune response. The impact of these results on the development of a vaccine for HE in turkeys produced by recombinant DNA technology is discussed.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0264-410X
pubmed:author
pubmed:issnType
Print
pubmed:volume
11
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
329-35
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1993
pubmed:articleTitle
Protection of turkeys against haemorrhagic enteritis by monoclonal antibody and hexon immunization.
pubmed:affiliation
Veterinary Infectious Disease Organization, Saskatoon, Saskatchewan, Canada.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't