Abstract:
:Mature T cells may be produced in the thymus, or by expansion in the periphery. While thymus output of virgin cells ensures repertoire diversity, peripheral expansion increases the size of rare clones, and thus the efficiency of immune responses. We studied the role of both phenomena in the generation of the CD8+ T cell pool using RAG-/- female mice expressing a transgenic T cell receptor specific for the male antigen; nude mice injected with peripheral T cells; and euthymic irradiated chimeras injected with bone marrow and mature T cells. Our results show that the total number of virgin and activated T cells, each constituting about half of the peripheral T cell pool, was regulated independently, revealing an efficient mechanism to maintain repertoire diversity while optimizing the immune response.
journal_name
Eur J Immunoljournal_title
European journal of immunologyauthors
Tanchot C,Rocha Bdoi
10.1002/eji.1830250802subject
Has Abstractpub_date
1995-08-01 00:00:00pages
2127-36issue
8eissn
0014-2980issn
1521-4141journal_volume
25pub_type
杂志文章abstract::We have utilized the sensitive polymerase chain reaction (PCR) to determine whether cytotoxic T lymphocyte (CTL) hybridomas generated from peritoneal exudate lymphocytes (PEL) and mixed lymphocyte cultures (MLC) express transcripts for perforin and the cytotoxic cell proteinases CCP1 to CCP5. We could readily detect l...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830221225
更新日期:1992-12-01 00:00:00
abstract::The role of TGF-beta1 in the regulation of T cell responses has been perplexing, possibly because it is dependent on the type of T cell being regulated and its cytokine microenvironment. In the present study, we demonstrate that TGF-beta1 has a profound inhibitory effect on naive CD4+ T cell undergoing differentiation...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/1521-4141(200007)30:7<2101::AID-IMMU2101>3
更新日期:2000-07-01 00:00:00
abstract::Tumor-associated macrophages play an important role in tumorigenesis and metastasis. Trafficking of macrophages to the proximity of tumors is mediated by CSF-1, a growth factor. In this study, we investigated the role of PKB/Akt in CSF-1-induced macrophage migration. Disruption of Akt2 expression by small interference...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200838809
更新日期:2009-03-01 00:00:00
abstract::As discussed in this review, human cytomegalovirus (HCMV) infection in healthy individuals is associated with a variable and persistent increase of NK cells expressing the CD94/NKG2C activating receptor. The expansion of NKG2C(+) NK cells reported in other infectious diseases is systematically associated with HCMV co-...
journal_title:European journal of immunology
pub_type: 杂志文章,评审
doi:10.1002/eji.201243117
更新日期:2013-05-01 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
abstract::To define activation-specific sequences in human T lymphocytes, a cDNA library was constructed by subtractive hybridization using resting and stimulated peripheral blood lymphocyte pairs. Stimulation of peripheral blood lymphocytes was achieved by triggering with mitogenic anti-CD2 (T11) monoclonal antibodies. Differe...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830190614
更新日期:1989-06-01 00:00:00
abstract::PKCε is implicated in T cell activation and proliferation and is overexpressed in CD4+ -T cells from patients with autoimmune Hashimoto's thyroiditis. Although this might induce the suspicion that PKCε takes part in autoimmunity, its role in the molecular pathophysiology of immune-mediated disorders is still largely u...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.201747102
更新日期:2018-04-01 00:00:00
abstract::To study the question when and where self peptides become associated with major histocompatibility complex class II molecules for tolerance induction, we recently developed a system in which the intracellular site(s) of antigen expression could be manipulated using gene cloning techniques. We previously constructed a ...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830210613
更新日期:1991-06-01 00:00:00
abstract::In this report we investigated the production and role of interleukin (IL)2 and IL4 in the generation of antigen-specific cytotoxic T cells (CTL). We used as our model the ultraviolet-light-induced epithelial tumor 1591, a highly immunogenic regressor tumor which evokes a strong cell-mediated immune response leading t...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830210813
更新日期:1991-08-01 00:00:00
abstract::After incorporation of 14C-labeled amino acids and/or of [3H]fucose during in vitro culture of the Thy-1.1-bearing, Fc receptor-positive T lymphoma, L-5187-Y, attempts were made to purify the Fc binding structure(s). Following solubilization of a crude membrane pellet using sodium deoxycholate, the 110 000 x g superna...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830070916
更新日期:1977-09-01 00:00:00
abstract::Production of indoleamine 2,3-dioxygenase (IDO) by tumor cells, leading to tryptophan depletion and production of immunosuppressive metabolites, may facilitate immune tolerance of cancer. IDO gene is also expressed in dendritic cells (DC) upon maturation induced by lipopolysaccarides or IFN. We investigated IDO gene e...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200535616
更新日期:2006-02-01 00:00:00
abstract::T-cell death is a fundamental process that is intricately regulated at multiple phases during T-cell differentiation, tolerance induction and the decline of the immune response. Caspase 3 is a crucial molecule regulating both mitochondrial and death receptor apoptotic pathways and therefore we were interested in exami...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.201040475
更新日期:2010-12-01 00:00:00
abstract::The regulation of nuclear factor (NF)-kappa B activation by the T cell receptor (TcR)/CD3 complex in primary human T cells has been studied at various times after activation. Only p50 NF-kappa B protein bound the kappa B element of interleukin-2 receptor (IL-2R) alpha chain promoter on resting T cells. However, immedi...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830250130
更新日期:1995-01-01 00:00:00
abstract::A gene-encoding ligand for deletion of T cells bearing TcRV beta 6 and V beta 8.1 cosegregates a new mammary tumor provirus locus, Mtv-50 in NC mice. The sequence of the open reading frame (ORF) in the 3' long terminal repeat (LTR) of Mtv-50 was strikingly similar to those of Mtv-7, Mtv-43 and exogenous mouse mammary ...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830240235
更新日期:1994-02-01 00:00:00
abstract::The responses of a single cloned T cell line to three different class II major histocompatibility complex (MHC) ligands have been compared for avidity, determined by inhibition with anti-T cell receptor Fab fragments directed at two different receptor epitopes, and for ease of inhibition with anti-CD4 antibody. It has...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830190114
更新日期:1989-01-01 00:00:00
abstract::The studies described in this report were designed to investigate factors that could influence the behavior of erythrocytes following their interaction with monoclonal antibodies (mAb) in a fully homologous experimental opsonization system in vivo. The clearance profiles and tissue distribution of target erythrocytes ...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830210413
更新日期:1991-04-01 00:00:00
abstract::Single-positive thymocytes are the immediate precursors of peripheral recent thymic emigrants (RTE) which develop into mature peripheral T cells. The functional ability of RTE is unclear but their state of differentiation may be relevant to the development of tolerance to peripheral "self" antigens. Since RTE are diff...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830240738
更新日期:1994-07-01 00:00:00
abstract::Human CD8(+) T cells are functionally heterogeneous and can be divided into phenotypically and functionally distinct subsets according to CCR7 and CD45RA expression levels. Among these, CCR7(low) CD45RA(low) effector memory CD8(+) T cells (Tem) and CCR7(low) CD45RA(high) CD8(+) T cells, which are designated as Temra a...
journal_title:European journal of immunology
pub_type: 临床试验,杂志文章
doi:10.1002/eji.201445086
更新日期:2015-03-01 00:00:00
abstract::The contribution of the costimulatory molecules B7-1 and B7-2 to the in vivo differentiation of Th cells remains controversial. The infection of resistant and susceptible strains of mice with the parasite Leishmania major provides a well-established model for studying in vivo differentiation of CD4+ T cells. We have i...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/1521-4141(200206)32:6<1764::AID-IMMU1764>3
更新日期:2002-06-01 00:00:00
abstract::The semi-public T-cell response towards the gluten epitope DQ2.5-glia-α2 uses a prototypic TCR encoded by the germline segments TRAV26-1 and TRBV7-2. Through mutagenesis experiments, we show that a TRAV26-1encoded recognition motif contacts the MHC β-chain and the TCR CDR3β loop underpinning this conserved T-cell resp...
journal_title:European journal of immunology
pub_type: 信件
doi:10.1002/eji.201948235
更新日期:2020-01-01 00:00:00
abstract::An effective immune response against the intracellular pathogen Mycobacterium tuberculosis is strictly dependent on T cell activation. Although this protective response mainly depends on local release of pro-inflammatory cytokines by Th1 CD4(+) T cells, contribution of Vgamma9 / Vdelta2 T lymphocytes to immune protect...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/(SICI)1521-4141(200005)30:5<1512::AID-IMMU
更新日期:2000-05-01 00:00:00
abstract::Thymic nurse cells, cortical epithelial cells enclosing 20-200 lymphocytes, were prepared from mouse thymus by enzyme digestion and repetitive sedimentation. Individual nurse cells were then isolated free of any exogenous thymocytes by micromanipulation, and the endogeneous thymocytes released from inside the nurse ce...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830151016
更新日期:1985-10-01 00:00:00
abstract::Changes in the migration pattern of lymphocytes represent a key event in the evolution of an immune response since they enable lymphocytes to gain access to infected tissues. We studied the location of virus-specific CD8 T cells in various splenic compartments in response to infection with lymphocytic choriomeningitis...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/(SICI)1521-4141(199911)29:11<3562::AID-IMM
更新日期:1999-11-01 00:00:00
abstract::The cytokines interleukin (IL)-6, IL-11, ciliary neurotrophic factor (CNTF), leukemia inhibitor factor (LIF), oncostatin M (OSM) and probably the recently cloned cytokine cardiotrophin-1, signal, in combination with their specific receptors, through the common signal transducer gp130. Here, we report that the signalin...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830251240
更新日期:1995-12-01 00:00:00
abstract::In hematopoietic stem cell transplantation (HSCT), when no HLA full-matched donor is available, alternative donors could include one HLA-mismatched donor. Recently, the low expressed HLA-C alleles have been identified as permissive mismatches for the best donor choice. Concerning HLA-A, the degree of variability of ex...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.201545927
更新日期:2015-12-01 00:00:00
abstract::Mucosa-associated lymphoid tissue 1 (Malt1) regulates immune cell function by mediating the activation of nuclear factor κB (NF-κB) signaling through both its adaptor and proteolytic function. Malt1 is also a target of its own protease activity and this self-cleavage further contributes to NF-κB activity. Until now, t...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.201847597
更新日期:2018-10-01 00:00:00
abstract::Rodents are significantly less sensitive to enterotoxin-induced shock, and are thus not valid human disease models. Here, we describe a mouse strain carrying the human CD4 and human major histocompatibility complex (MHC) class II (DQ6) transgenes in an endogenous CD4- and CD8-deficient background. T lymphocytes from t...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830260518
更新日期:1996-05-01 00:00:00
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...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/1521-4141(200206)32:6<1574::AID-IMMU1574>3
更新日期:2002-06-01 00:00:00
abstract::Autoantigenic epitope mapping represents a critical issue in autoimmune diseases. The islet tyrosine phosphatase-like protein IA-2/ICA512bdc is a major autoantigen in type 1 diabetes (IDDM), but the epitopes responsible for autoantibody binding have been only partially defined. The aim of our study was to identify ICA...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/1521-4141(200205)32:5<1420::AID-IMMU1420>3
更新日期:2002-05-01 00:00:00
abstract::Immunotherapy generally fails to induce tumour regression in spontaneously arising tumours. Failure is attributed to both tumour-related factors and an ineffective immune response. As a model of tumour immunotherapy, without the confounding effects of potential tumour-determined mechanisms of immune evasion, we studie...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200737599
更新日期:2008-01-01 00:00:00