Abstract:
:Dendritic cells (DC) play an essential role in the induction of primary immune responses; however, very little information is available on cytokine production by DC. Here we determined the cytokine gene expression profile of two immortalized DC clones, CB1 and D2SC/1, both generated from mouse spleen but differing in their activation requirements. Among the cytokines tested, only transforming growth factor-beta 1 was transcribed constitutively, but its production was detected only in D2SC/1 cells after treatment with granulocyte/macrophage colony-stimulating factor (GM-CSF). GM-CSF also promoted transcription and synthesis of interleukin (IL)-1 beta in CB1 cells that need pretreatment with GM-CSF to present major histocompatibility complex class II-restricted antigens efficiently in vitro. Lipopolysaccharide (LPS) up-regulated gene expression and induced release of tumor necrosis factor-alpha in both DC clones. In addition, LPS induced transcription of IL-1 alpha and both gene expression and synthesis of IL-1 beta in D2SC/1 cells. Interferon-gamma was ineffective in inducing cytokine gene expression, although it augmented the antigen-presentation capacity of DC, IL-4, IL-10 and IL-12 mRNA were not induced by any of the tested stimuli. The results suggest that DC have a limited cytokine gene expression pattern compared to macrophages and are heterogenous in some functional properties.
journal_name
Eur J Immunoljournal_title
European journal of immunologyauthors
Granucci F,Girolomoni G,Lutz MB,Foti M,Marconi G,Gnocchi P,Nolli L,Ricciardi-Castagnoli Pdoi
10.1002/eji.1830241039subject
Has Abstractpub_date
1994-10-01 00:00:00pages
2522-6issue
10eissn
0014-2980issn
1521-4141journal_volume
24pub_type
杂志文章abstract::Transgenic mice in which mouse interleukin (IL)-7 cDNA is expressed under the control of the mouse major histocompatibility complex (MHC) class II (E alpha) promoter develop a lymphoproliferative disease characterized by the early polyclonal expansion of T cells followed in many cases by the development of lymphomas o...
journal_title:European journal of immunology
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journal_title:European journal of immunology
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journal_title:European journal of immunology
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更新日期:1994-12-01 00:00:00
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journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/(SICI)1521-4141(200005)30:5<1425::AID-IMMU
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abstract::Naive and memory CD4 T cells differ in cell surface phenotype, function, activation requirements, and modes of regulation. To investigate the molecular bases for the dichotomies between naive and memory CD4 T cells and to understand how the T cell receptor (TCR) directs diverse functional outcomes, we investigated pro...
journal_title:European journal of immunology
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journal_title:European journal of immunology
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journal_title:European journal of immunology
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journal_title:European journal of immunology
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journal_title:European journal of immunology
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journal_title:European journal of immunology
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abstract::The expression of HLA class II genes is under the control of a transcriptional activator, CIITA, encoded by the AIR-1 locus. Here we show that CIITA inhibits HIV-1 LTR transactivation mediated by Tat. The inhibition occurred when CIITA and Tat were transiently expressed in cells after transfection and, most importantl...
journal_title:European journal of immunology
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journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830111020
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journal_title:European journal of immunology
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journal_title:European journal of immunology
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journal_title:European journal of immunology
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更新日期:2015-05-01 00:00:00
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journal_title:European journal of immunology
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journal_title:European journal of immunology
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journal_title:European journal of immunology
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journal_title:European journal of immunology
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journal_title:European journal of immunology
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journal_title:European journal of immunology
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journal_title:European journal of immunology
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journal_title:European journal of immunology
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abstract::Growing evidence suggests that some immune responses are mediated not only by conventional and distinct NK cells and CTL, but also by T cell subsets expressing NK receptors and NK cell-associated molecules. Consistent with our previously published finding that the mAb 1F8 identifies non-T/non-B cells in Xenopus that e...
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