Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1-2
pubmed:dateCreated
2003-11-7
pubmed:abstractText
Both enzyme-linked immunospot (ELISPOT) and cytokine flow cytometry (CFC) methods have been developed for the detection of low-frequency, antigen-specific, cytokine-producing T cells following short-term in vitro stimulation. Peptide-based ELISPOT and CFC assays were compared for the quantitative detection of interferon gamma-positive (IFN-gamma+) antigen-specific T cells in rhesus macaques. Ten normal and nine simian immunodeficiency virus (SIV)-infected monkeys were tested for the detection of IFN-gamma+ memory T cells specific for p27(gag) peptides of SIV with both assays. The CFC assay detected more IFN-gamma+ cells than the ELISPOT assay and this assay was more informative in identifying the phenotype of responding cells. Cryopreserved cells were as functional as fresh cells in heparinized blood samples and compared to EDTA, heparin was the better anticoagulant for yielding IFN-gamma+ cells. Using overlapping peptide pools, 20-mer peptides were more efficient in stimulating CD4+ T cells than 15-mer peptides in the ELISPOT assay, but there was no significant difference between 20- and 15-mer peptides in detecting CD4 or CD8+, IFN-gamma+ T cells in the CFC assay.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0022-1759
pubmed:author
pubmed:issnType
Print
pubmed:volume
282
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
103-15
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
2003
pubmed:articleTitle
Detection of antigen-specific T cell interferon gamma expression by ELISPOT and cytokine flow cytometry assays in rhesus macaques.
pubmed:affiliation
California National Primate Research Center, University of California-Davis, Davis, CA 95616, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.