Linked Life Data

10932158

Source:http://linkedlifedata.com/resource/pubmed/id/10932158

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
8
pubmed:dateCreated
2000-9-14
pubmed:abstractText
Although much effort has been expended on evaluating recombinant proteins and synthetic peptides as immunogens, they have generally proved incapable of inducing an efficient cytotoxic T-cell (CTL) response. Filamentous bacteriophage fd can display multiple copies of foreign peptides in the N-terminal region of its major coat protein pVIII, 2,700 copies of which make up the virus capsid. Here we show that fd virions displaying peptide RT2 (ILKEPVHGV), corresponding to residues 309-317 of the reverse transcriptase (RTase) of HIV-1, are able to prime a CTL response specific for this HIV-1 epitope in human cell lines. Successful priming also requires a T-helper epitope, pep23 (KDSWTVNDIQKLVGK), corresponding to residues 249-263 of HIV-1 RTase. Supplying this by displaying it on either the same or a separate bacteriophage virion led to activation of antigen-specific CD4+ T cells. Likewise, HLA-A2 transgenic mice immunized with bacteriophage virions displaying peptide RT2 were shown to mount an effective, specific anti-HIV-RT2 CTL response. This unexpected ability to elicit a designated cytolytic T-cell response, in addition to a B-cell response, has important implications for access to the class I major histocompatibility complex (MHC) loading compartment and the development of recombinant vaccines.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
1087-0156
pubmed:author
pubmed:issnType
Print
pubmed:volume
18
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
873-6
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2000
pubmed:articleTitle
Phage display of peptide epitopes from HIV-1 elicits strong cytolytic responses.
pubmed:affiliation
Institute of Protein Biochemistry Enzymology CNR, Naples, Italy. deberard@ibpe.na.cnr.it
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't