Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
12
pubmed:dateCreated
2003-12-9
pubmed:abstractText
E1-deleted adenoviral recombinants most commonly based on the human serotype 5 (AdHu5) have been shown thus far to induce unsurpassed transgene product-specific CD8(+) T cell responses. A large percentage of the adult human population carries neutralizing Abs due to natural exposures to AdHu5 virus. To circumvent reduction of the efficacy of adenovirus (Ad) vector-based vaccines by neutralizing Abs to the vaccine carrier, we developed E1-deleted adenoviral vaccine carriers based on simian serotypes. One of these carriers, termed AdC68, expressing a codon-optimized truncated form of gag of HIV-1 was shown previously to induce a potent transgene product-specific CD8(+) T cell response in mice. We constructed a second chimpanzee adenovirus vaccine vector, termed AdC6, also expressing the truncated gag of HIV-1. This vector, which belongs to a different serotype than the AdC68 virus, induces high frequencies of gag-specific CD8(+) T cells in mice including those pre-exposed to AdHu5 virus. Generation of an additional E1-deleted adenoviral vector of chimpanzee origin allows for sequential booster immunizations with heterologous vaccine carriers. In this study, we show that such heterologous prime boost regimens based on E1-deleted adenoviral vectors of different serotypes expressing the same transgene product are highly efficient in increasing the transgene product-specific CD8(+) T cell response. They are equivalent to sequential vaccinations with an E1-deleted Ad vector followed by booster immunization with a poxvirus vector and they surpass regimens based on DNA vaccine prime followed by a recombinant adenoviral vector boost.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0022-1767
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
171
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
6774-9
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed-meshheading:14662882-AIDS Vaccines, pubmed-meshheading:14662882-Adenovirus E1 Proteins, pubmed-meshheading:14662882-Adenoviruses, Human, pubmed-meshheading:14662882-Animals, pubmed-meshheading:14662882-CD8-Positive T-Lymphocytes, pubmed-meshheading:14662882-Cell Line, pubmed-meshheading:14662882-Epitopes, T-Lymphocyte, pubmed-meshheading:14662882-Female, pubmed-meshheading:14662882-Gene Products, gag, pubmed-meshheading:14662882-Genetic Vectors, pubmed-meshheading:14662882-HIV Antigens, pubmed-meshheading:14662882-HeLa Cells, pubmed-meshheading:14662882-Humans, pubmed-meshheading:14662882-Immunization, Secondary, pubmed-meshheading:14662882-Immunization Schedule, pubmed-meshheading:14662882-Injections, Intramuscular, pubmed-meshheading:14662882-Lymphocyte Activation, pubmed-meshheading:14662882-Mice, pubmed-meshheading:14662882-Pan troglodytes, pubmed-meshheading:14662882-Vaccines, DNA, pubmed-meshheading:14662882-Vaccinia virus
pubmed:year
2003
pubmed:articleTitle
Induction of CD8+ T cells to an HIV-1 antigen through a prime boost regimen with heterologous E1-deleted adenoviral vaccine carriers.
pubmed:affiliation
The Wistar Institute, University of Pennsylvania, Philadelphia, PA 19104, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't