Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
8
pubmed:dateCreated
1997-5-5
pubmed:abstractText
To enhance and steer immune responses to synthetic peptide vaccines toward selected functional types and to understand the cooperative action of cytokines in fine-tuning the immune response, we attempted to influence the in vivo cytokine environment by delivering cytokines directly to the microenvironment in which the immune response is initiated. Here we study the effects of IL-2, IL-4, IL-7, IL-1beta, IL-12, IFN-gamma, TNF-alpha, and granulocyte-macrophage CSF (GM-CSF) incorporated with peptide in adjuvant on a variety of responses elicited: CTL, T cell proliferation, cytokine production and message, and Ab isotype. We show GM-CSF to be the single most effective cytokine for enhancing both cellular and humoral immunity to two previously characterized HIV-1 MN vaccine constructs. Novel synergies were also detected. GM-CSF synergized with IL-12 for CTL induction in BALB/c mice concomitant with suppression of Th2 cytokines IL-4 and IL-10. TNF-alpha also synergized with IL-12, but by a different mechanism, inducing IFN-gamma production in BALB/c mice and thus shifting the response to a Th1 phenotype. The results presented here suggest that in addition to IL-2, optimum induction of CD8+ CTL in vivo requires a combination of cytokines, including GM-CSF (probably acting to enhance Ag presentation and CD4+ cell help) and IL-12 (steering the Th response toward Th1 cytokines).
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0022-1767
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
158
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
3947-58
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed-meshheading:9103465-AIDS Vaccines, pubmed-meshheading:9103465-Adjuvants, Immunologic, pubmed-meshheading:9103465-Amino Acid Sequence, pubmed-meshheading:9103465-Animals, pubmed-meshheading:9103465-CD4-Positive T-Lymphocytes, pubmed-meshheading:9103465-CD8-Positive T-Lymphocytes, pubmed-meshheading:9103465-Cytokines, pubmed-meshheading:9103465-Drug Synergism, pubmed-meshheading:9103465-Female, pubmed-meshheading:9103465-Granulocyte Colony-Stimulating Factor, pubmed-meshheading:9103465-Humans, pubmed-meshheading:9103465-Immunity, pubmed-meshheading:9103465-Interleukin-12, pubmed-meshheading:9103465-Lymphocyte Activation, pubmed-meshheading:9103465-Mice, pubmed-meshheading:9103465-Mice, Inbred BALB C, pubmed-meshheading:9103465-Molecular Sequence Data, pubmed-meshheading:9103465-Peptides, pubmed-meshheading:9103465-Tumor Necrosis Factor-alpha
pubmed:year
1997
pubmed:articleTitle
Cytokine-in-adjuvant steering of the immune response phenotype to HIV-1 vaccine constructs: granulocyte-macrophage colony-stimulating factor and TNF-alpha synergize with IL-12 to enhance induction of cytotoxic T lymphocytes.
pubmed:affiliation
Molecular Immunogenetics and Vaccine Research Section Metabolism Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA.
pubmed:publicationType
Journal Article