Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1999-7-30
pubmed:abstractText
Attenuated Salmonella typhi strain CVD 915, harboring a deletion in guaBA that interrupts the biosynthesis of guanine nucleotides, was evaluated as a live vector vaccine for delivering foreign antigens utilizing prokaryotic or eukaryotic expression systems. Plasmids pTETnir15 and pcDNA3tetC encoding fragment C (Frag C) of tetanus toxin under the control of prokaryotic or eukaryotic promoters, respectively, were introduced into CVD 915 and administered intranasally to mice. Purified pcDNA3tetC and Frag C were given intramuscularly. High titers of serum IgG1, IgG2a, and IgG2b antibodies against Frag C were elicited by CVD 915(pTETnir15) and CVD 915(pcDNA3tetC). These responses were significantly higher than those induced by pcDNA3tetC. Proliferative responses and IL-2 and IFN-gamma production were observed in splenocytes exposed to S. typhi antigens and Frag C. We conclude that CVD 915 is a highly efficient live vector to carry foreign genes under eukaryotic or prokaryotic control and elicit potent immune responses.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
1521-6616
pubmed:author
pubmed:copyrightInfo
Copyright 1999 Academic Press.
pubmed:issnType
Print
pubmed:volume
92
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
76-89
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1999
pubmed:articleTitle
Attenuated deltaguaBA Salmonella typhi vaccine strain CVD 915 as a live vector utilizing prokaryotic or eukaryotic expression systems to deliver foreign antigens and elicit immune responses.
pubmed:affiliation
Department of Pediatrics, University of Maryland, School of Medicine, Baltimore, Maryland 21201, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't