Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
9
pubmed:dateCreated
2008-10-1
pubmed:abstractText
By cross-linking B7-DC on dendritic cells (DC) the human IgM antibody (B7-DC XAb) shifts polarized immune responses from Th2 to Th1 in an antigen-specific manner. The molecular determinants governing the ability of DC to reprogram the polarity of T cell recall responses are not yet known. In addition to the expected role of T-bet expressed by T cells in regulating Th1 responses, we find using in vitro assays and an established in vivo model of allergic airway inflammation that T-bet expression by DC is also required for the polarity shift promoted by B7-DC XAb. T-bet expression by both T cells and DC is critically important for B7-DC XAb-induced down-regulation of IL-4, up-regulation of IFN-gamma and suppression of allergic airway inflammation. Moreover, retroviral reconstitution of T-bet expression in T-bet-deficient DC rescued their ability to modulate both naive and memory T-cell responses from Th2 to Th1. Our observations further our understanding of the critical mediators controlling the ability of DC to modify the responses of previously activated T cells and reveal the interesting use of the same transcription factor to regulate the inductive phenotype of DC and the inducible phenotype of T cells.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0014-2980
pubmed:author
pubmed:issnType
Print
pubmed:volume
38
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2464-74
pubmed:dateRevised
2011-11-17
pubmed:meshHeading
pubmed-meshheading:18819071-Adoptive Transfer, pubmed-meshheading:18819071-Animals, pubmed-meshheading:18819071-Antigens, CD80, pubmed-meshheading:18819071-Cell Polarity, pubmed-meshheading:18819071-Cells, Cultured, pubmed-meshheading:18819071-Coculture Techniques, pubmed-meshheading:18819071-Dendritic Cells, pubmed-meshheading:18819071-Down-Regulation, pubmed-meshheading:18819071-Inflammation, pubmed-meshheading:18819071-Interferon-gamma, pubmed-meshheading:18819071-Interleukin-4, pubmed-meshheading:18819071-Lung, pubmed-meshheading:18819071-Mice, pubmed-meshheading:18819071-Mice, Inbred BALB C, pubmed-meshheading:18819071-Mice, Inbred C57BL, pubmed-meshheading:18819071-Mice, Knockout, pubmed-meshheading:18819071-Ovalbumin, pubmed-meshheading:18819071-Programmed Cell Death 1 Ligand 2 Protein, pubmed-meshheading:18819071-Respiratory Hypersensitivity, pubmed-meshheading:18819071-T-Box Domain Proteins, pubmed-meshheading:18819071-Th1 Cells, pubmed-meshheading:18819071-Th2 Cells, pubmed-meshheading:18819071-Up-Regulation
pubmed:year
2008
pubmed:articleTitle
T-bet expression by dendritic cells is required for the repolarization of allergic airway inflammation.
pubmed:affiliation
Department of Immunology, College of Medicine, Mayo Clinic, Rochester, MN 55905, USA.
pubmed:publicationType
Journal Article, Research Support, N.I.H., Extramural