Abstract:
:Using a model of 2,4-dinitro-1-fluorobenzene-induced contact hypersensitivity (CHS) we found that, as compared with wild-type mice, IL-15 receptor alpha chain (IL-15Ralpha)-deficient mice showed significantly less ear swelling. This decreased response was associated with diminished expression of CCL5/RANTES and CXCL10/IP-10, chemokines critical for effector cell recruitment, in the inflamed tissue. We determined that both the number of CD8(+) T cells infiltrating the affected skin and the production of CCL5/RANTES by antigen-stimulated CD8(+) T cells were decreased in IL-15Ralpha(-/-) mice. The lower levels of CXCL10/IP-10 suggested that the IL-15Ralpha(-/-) mice had reduced production of IFN-gamma, the primary inducer of CXCL10/IP-10, which was in fact the case. However, by contrast with CCL5/RANTES, the diminished levels of IFN-gamma were likely due to the decreased number of skin-infiltrating CD8(+) T cells, since IFN-gamma production by antigen-stimulated CD8(+) T cells was comparable between wild-type and IL-15Ralpha(-/-) mice. Our data suggest a positive, pro-inflammatory feedback loop involving CCL5/RANTES, IFN-gamma and CXCL10/IP-10 that underlies the CHS reaction and that is disrupted, likely primarily by a defect in CCL5/RANTES production, in mice lacking IL-15Ralpha, resulting in impaired leukocyte recruitment and inflammation. Moreover, it is particularly noteworthy that the defect in CCL5/RANTES expression in CD8(+) T cells is intrinsic to the absence of IL-15Ralpha, indicating that IL-15Ralpha is critical for CCL5/RANTES expression in CD8(+) T cells.
journal_name
Eur J Immunoljournal_title
European journal of immunologyauthors
Chen JP,Liao NS,Lai SL,Hsu L,Mao WY,Ku MC,Liao Fdoi
10.1002/eji.200425577keywords:
subject
Has Abstractpub_date
2005-03-01 00:00:00pages
690-8issue
3eissn
0014-2980issn
1521-4141journal_volume
35pub_type
杂志文章abstract::Dendritic cells (DC) are extremely proficient inducers of naïve CD4+ T cell activation due to their high expression level of peptide-MHC and an array of accessory molecules involved in cell migration, adhesion and co-signaling, including PD-1 ligand 1 (PD-L1) and PD-1 ligand 2 (PD-L2). Whether PD-L1 and PD-L2 have a s...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200635978
更新日期:2006-09-01 00:00:00
abstract::The third component of complement C3 has been implied in the stimulation of B lymphocytes to proliferation and maturation for Ig secretion. We have reinvestigated the extent of this activation with either activated or resting murine splenic lymphocytes in serum-substituted cultures. Human C3 was used in either soluble...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830150214
更新日期:1985-02-01 00:00:00
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journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830250314
更新日期:1995-03-01 00:00:00
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journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200838668
更新日期:2008-12-01 00:00:00
abstract::Only activated and effector memory T cells are thought to access non-lymphoid tissues. In contrast, naive T cells are thought to circulate only between the blood, lymph and secondary lymphoid organs. We examined the phenotype of endogenous T cells in various non-lymphoid organs and showed that a subset of cells exhibi...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200535539
更新日期:2006-06-01 00:00:00
abstract::Peptides associated with HLA-B35 commonly have a proline or occasionally a serine residue in the P2 anchor position of the peptide, with a tyrosine at the C terminus. Based on this motif, we identified an octamer epitope from influenza A matrix protein which is presented by HLA-B35. The requirements for MHC binding an...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830260210
更新日期:1996-02-01 00:00:00
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journal_title:European journal of immunology
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更新日期:2011-12-01 00:00:00
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journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200636759
更新日期:2007-10-01 00:00:00
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journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830060813
更新日期:1976-08-01 00:00:00
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journal_title:European journal of immunology
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doi:10.1002/eji.201847491
更新日期:2018-09-01 00:00:00
abstract::The human T lymphocyte-specific CD2 (T11) molecule, that regulates T cell activation, is capable of mediating increases of intracellular cAMP. Monoclonal antibodies directed to different epitopes of the CD2 molecule which either induce or inhibit T cell proliferation are capable of triggering an increase of cAMP compa...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830180620
更新日期:1988-06-01 00:00:00
abstract::MicroRNA (miRNA) are a class of post-transcriptional regulators of gene expression targeting mRNA for translational repression and/or degradation. We analyzed the expression of 365 miRNA in lymphocytes in relapsing-remitting MS patients, and show the first evidence for distinct miRNA expression profiles in CD4(+), CD8...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200940032
更新日期:2010-03-01 00:00:00
abstract::Immunotherapies that augment antitumor T cells have had recent success for treating patients with cancer. Here we examined whether tumor-specific CD4(+) T cells enhance CD8(+) T-cell adoptive immunotherapy in a lymphopenic environment. Our model employed physiological doses of tyrosinase-related protein 1-specific CD4...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.201343718
更新日期:2014-01-01 00:00:00
abstract::ME3738 is a new compound that attenuates liver disease in several models of acute and chronic liver inflammation. We used the concanavalin A (Con A) model to elucidate the molecular mechanisms of ME3738 to block liver cell damage. Pretreatment of BALB/c mice with ME3738 prior to Con A injection resulted in a significa...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200323651
更新日期:2003-08-01 00:00:00
abstract::The BCR plays a central role in B cell development, survival, activation, and differentiation. We have identified the B cell novel protein 1 (BCNP1) as a new regulator of BCR signaling. BCNP1 contains a pleckstrin homology domain, three proline-rich motifs, and a potential SH2 binding site, and is predominantly expres...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.201847985
更新日期:2019-06-01 00:00:00
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journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830260421
更新日期:1996-04-01 00:00:00
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journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830230941
更新日期:1993-09-01 00:00:00
abstract::Three molecular forms of the IL-1 receptor antagonist (IL-1ra) have been identified and cloned. Secreted IL-1ra (sIL-1ra or IL-1ra1) contains a classical leader peptide giving a released mature protein. Two intracellular isoforms, icIL-1ra type I (IL-1ra2) and icIL-1ra type II (IL-1ra3), have no leader sequence, thus ...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/(SICI)1521-4141(199903)29:03<781::AID-IMMU
更新日期:1999-03-01 00:00:00
abstract::This study was performed as a means to examine the effects of environment and stem cell origin on the molding of T cell receptor gene rearrangements during T cell development. Lethally irradiated adult mice were first reconstituted with (C57BL/6 x DBA/2)F1 stem cells, which derived either from a fetal liver or adult b...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830211208
更新日期:1991-12-01 00:00:00
abstract::Strains CBA (M523) (= M523) and CBA differ by a mutation which has been mapped genetically into the K region of the H-2 complex. Similarly, strains B 10.D2 (M504 (= M504) and b 10.D2 differ in a mutation which occurred in the D region. The data presented in this study show that mixed lymphocyte culture in M523 anti-CB...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830090208
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abstract::Collagen type II-induced arthritis (CIA) is an experimental model of arthritis that has been successfully used to dissect the pathogenesis of human rheumatoid arthritis and to identify potential therapeutic targets. We have used this model to evaluate the role of T cell co-stimulation in both disease development and p...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830261008
更新日期:1996-10-01 00:00:00
abstract::The molecular mimicry represented by cross-recognition of determinants shared by unrelated antigens by antibodies or T cells is of broad immunological interest. In this study, we analyzed the cross-recognition by CD4+ T cells of a peptide epitope shared by two mycobacterial proteins of diverse sequence, represented by...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830251128
更新日期:1995-11-01 00:00:00
abstract::We have shown previously that complement factor H (CFH) and complement factor B (CFB) are constitutively expressed by retinal pigment epithelial cells and their production is regulated by inflammatory cytokines, suggesting that the alternative pathway (AP) of complement activation might play a role in retinal inflamma...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.201040323
更新日期:2010-10-01 00:00:00
abstract::Two out of five murine IgG3 anti-trinitrophenyl (TNP) monoclonal antibodies (mAb) obtained either by immunization with TNP-keyhole limpet hemocyanin (KLH) (CB1, CB5, CB6 and 4H10) or with dinitrophenyl-lipopolysaccharide (9A6), exhibited anti-IgG rheumatoid factor (RF) activity (CB6 and 4H10). The anti-IgG activity of...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830191123
更新日期:1989-11-01 00:00:00
abstract::Injection into mice of a free reactive form of the hapten (4-hydroxy-3,5-dinitrophenyl)acetyl (NNP), induces a state of specific unresponsiveness to the hapten, upon its challenge with thymus-cependent and independent carriers. This unresponsiveness is maintained in vitro. Both induction and expression of the unrespon...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830050611
更新日期:1976-06-01 00:00:00
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journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830171122
更新日期:1987-11-01 00:00:00
abstract::We investigated here the potential role of Toll-like receptors (TLR) and the adaptor protein MyD88 in innate immunity responses to Cryptococcus neoformans, a pathogenic encapsulated yeast. Peritoneal macrophages from MyD88(-/-) or TLR2(-/-) mice released significantly less TNF-alpha, compared with wild-type controls, ...
journal_title:European journal of immunology
pub_type: 杂志文章
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更新日期:2005-03-01 00:00:00
abstract::The transcriptional repressor Gfi1 is a nuclear zinc-finger protein that is expressed in T cell precursors in the thymus, but is down-regulated in mature, resting T cells. Gfi1 expression rises transiently to levels seen in thymocytes upon antigenic activation. We show here that lack of Gfi1 causes delayed cell cycle ...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200737130
更新日期:2007-12-01 00:00:00
abstract::Regulatory T cells (Treg) are vital in maintaining the homeostasis of immune reactions. In chronic infections, such as schistosomiasis, it remains unclear whether engagement of the TLR family is required to induce Treg activity. Thus, we performed in vivo studies using TLR2-/- mice infected with Schistosoma mansoni an...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200737063
更新日期:2007-08-01 00:00:00
abstract::In humans and mice, mucosal immune responses are dominated by IgA antibodies and the cytokine TGF-β, suppressing unwanted immune reactions but also targeting Ig class switching to IgA. It had been suggested that eosinophils promote the generation and maintenance of mucosal IgA-expressing plasma cells. Here, we demonst...
journal_title:European journal of immunology
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doi:10.1002/eji.201948474
更新日期:2020-06-01 00:00:00