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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2006-3-20
pubmed:abstractText
4-1BB, one of co-stimulatory molecules, is a member of TNF receptor superfamily and expressed on T cells upon TCR ligation. We have shown that 4-1BB is a co-stimulatory molecule enhancing cell cycle progression and inhibiting activation-induced cell death of CD8+ T cells by enhancing TCR signaling pathways. Here, we first report that the cross-linking of 4-1BB increased the expression of IL-13 mRNA and protein, and its secretion apparently via calcineurin, a Ca2+/calmodulin-dependent phosphatase. Ligation of 4-1BB with p815-m-4-1BBL evoked intracellular Ca2+ level in CD8+ T cells. CD8+ T cells express IL-13 receptor alpha1 mRNA. Incubation with anti-IL-13 blocking mAb reduced proliferation of CD8+ T cells enhanced by 4-1BB, and the treatment of CD3/4-1BB-ligated CD8+ T cells with recombinant IL-13 enhances cell proliferation, indicating that 4-1BB-induced IL-13 expression is partially responsible for the CD8+ T cell expansion in an autocrine or paracrine manner.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
1043-4666
pubmed:author
pubmed:issnType
Print
pubmed:day
21
pubmed:volume
33
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
87-94
pubmed:meshHeading
pubmed:year
2006
pubmed:articleTitle
Cross-linking of 4-1BB up-regulates IL-13 expression in CD8(+) T lymphocytes.
pubmed:affiliation
The Immunomodulation Research Center and Graduate Program in Immunology and Biomedicine, University of Ulsan, Ulsan 680-749, South Korea.
pubmed:publicationType
Journal Article