Abstract:
:The forkhead-family transcription factor FoxP3 is important for the development and function of CD4+CD25+ regulatory T cells. While the overall phenotypic effects of FoxP3 expression are evident, the mechanism by which FoxP3 regulates T cell activation is not well understood. CD4+ T cells from mice that express a FoxP3 Tg are refractory to TCR-mediated stimulation, failing to proliferate or produce cytokines, but possess suppressive activity towards normal T cells. In this report we show that these T cells express elevated levels of mRNA for pro-apoptotic genes and undergo rapid apoptosis following stimulation. These T cells also display slower cell cycle transit following activation, suggesting that FoxP3 is capable of regulating the ability of T cells to respond to TCR-mediated activation. Lastly, we show that contrary to expected results, under Th1 or Th2 driving conditions, CD4+ T cells from FoxP3 Tg mice differentiate into effector cells. Concomitant with differentiation is a loss of FoxP3 mRNA and protein. These data demonstrate that FoxP3 levels regulate T cell function, and that FoxP3 itself is dynamically regulated during effector T cell differentiation.
journal_name
Eur J Immunoljournal_title
European journal of immunologyauthors
Kasprowicz DJ,Droin N,Soper DM,Ramsdell F,Green DR,Ziegler SFdoi
10.1002/eji.200526339keywords:
subject
Has Abstractpub_date
2005-12-01 00:00:00pages
3424-32issue
12eissn
0014-2980issn
1521-4141journal_volume
35pub_type
杂志文章abstract::The fate of the T cell receptor (TcR)/CD3 complex was examined on a cytotoxic T lymphocyte (CTL) clone (KB5.C20) activated either via binding of an anti-TcR monoclonal antibody (mAb) or by a Ca2+ ionophore and phorbol 12-myristate 13-acetate (PMA). After binding of the anti-TcR mAb, electron microscopy revealed intern...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830210707
更新日期:1991-07-01 00:00:00
abstract::Several studies in human patients and in laboratory animals have revealed a correlation between serum interleukin (IL)-6 levels and outcome in clinical sepsis and in related animal models, respectively. In the present study, two monoclonal antibodies were used to investigate the contribution of IL-6 in the lethal acti...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830221023
更新日期:1992-10-01 00:00:00
abstract::Antibodies to framework determinants of the VH and V lambda fragments of MOPC 315 and antisera to the VH idiotype determinants of the A 5 A antibody were used to analyze the antigen receptors of mouse T (and B) cells. This was done by using the antibodies as inhibitors in (a) an assay in which the binding of radiolabe...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830100207
更新日期:1980-02-01 00:00:00
abstract::The anti-PC antibodies of BALB/c origin bear predominantly the idiotype characteristic of the phosphorylcholine (PC)-binding T15 idiotype than sera from adult mice, and, unlike the latter, they also contain detectable amounts of anti-T15 antibodies. By 2 weeks of age the anti-T15 antibodies are no longer detectable wh...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830060710
更新日期:1976-07-01 00:00:00
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 ...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830241039
更新日期:1994-10-01 00:00:00
abstract::Mercuric chloride (HgCl2) has contrasting effects on different rat strains: susceptible strains, e.g. Brown Norway (BN) develop polyclonal B cell activation, multiple autoantibodies and widespread tissue injury. Lewis (LEW) rats are resistant: no autoimmune response occurs after HgCl2; instead, there is immunosuppress...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830261018
更新日期:1996-10-01 00:00:00
abstract::The capacity of bone marrow-derived surface immunoglobulin-positive (sIg+) human and mouse immature B cells, generated either in vitro or in vivo, to change their light (L) chain expression, has been assayed by the number of cells which change in vitro from one type of L chain to the other type, or to no sIg at all. I...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830251118
更新日期:1995-11-01 00:00:00
abstract::Hypersensitivity to nickel (Ni) represents the most common manifestation of contact allergy in humans. The role of metal-specific T cells in this disease is well established, but the molecular interactions involved in their activation are poorly understood. We examined the T cell receptor (TCR) repertoire in T cells a...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830270808
更新日期:1997-08-01 00:00:00
abstract::The squirrel monkey Saimiri sciureus is one of the World Health Organization recommended experimental models of Plasmodium falciparum blood stage infection. Anti-malaria antibodies developed by this host after a drug-controlled infection play an important part in the acquired protection against the P. falciparum blood...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830201022
更新日期:1990-10-01 00:00:00
abstract::Antigen-specific CD4(+) T cells are central to natural and vaccine-induced immunity. An ongoing antigen-specific T-cell response can, however, influence surrounding T cells with unrelated antigen specificities. We previously observed this bystander effect in healthy human subjects following recall vaccination with tet...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200940017
更新日期:2010-04-01 00:00:00
abstract::Lymphocyte proliferation in response to monocytes pulsed with an antigenic extract of Candida albicans was measured in vitro and the effects of modifying major histocompatibility complex (MHC) class II antigen expression at the surface of the antigen-presenting cells was investigated. The study shows that no simple co...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830160410
更新日期:1986-04-01 00:00:00
abstract::In human T lymphocytes a functional complex is formed between the protein tyrosine phosphatase CD45, the protein tyrosine kinase p56lck and a phosphoprotein, pp32, a possible common substrate. Here we demonstrate that the previously described pp32 protein is composed of two distinct molecules (pp29 and pp32) in both r...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830220727
更新日期:1992-07-01 00:00:00
abstract::Mismatch repair contributes to hypermutation in B lymphocytes, both by increasing the frequency of mutations and by changing the mutational patterns. In this paper, we investigated whether or not mismatch repair influences activation-induced cytidine deaminase (AID)-mediated hypermutation in a non-B lymphocyte line. W...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200526221
更新日期:2005-07-01 00:00:00
abstract::The infiltration and activation of monocytes is a hallmark of chronic inflammation, including that associated with a variety of disease states such as rheumatoid arthritis, atherosclerosis, and various autoimmune conditions. Recently, a family of small molecular mass proteins has been described which appear to have in...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830220621
更新日期:1992-06-01 00:00:00
abstract::We analyzed the functional outcome of the interaction between tumor-associated macrophages (TAMs) and natural killer (NK) cells. TAMs from ascites of ovarian cancer patients displayed an alternatively activated functional phenotype (M2) characterized by a remarkably high frequency and surface density of membrane-bound...
journal_title:European journal of immunology
pub_type: 临床试验,杂志文章
doi:10.1002/eji.201344130
更新日期:2014-06-01 00:00:00
abstract::This study describes a general strategy to produce hybrid monoclonal antibodies that are capable of targeting human cytotoxic T lymphocytes (CTL) against any cell carrying the appropriate target antigen. This is done by fusing a HAT-sensitive, G418-resistant anti-T3 hybridoma with immune spleen cells (or with other hy...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830170118
更新日期:1987-01-01 00:00:00
abstract::In the thymus, in order to become MHC-restricted self-tolerant T cells, developing thymocytes need to interact with cortical and medullary thymic epithelial cells (TECs). Although the presence of a common bipotent progenitor for these functionally and structurally distinct epithelial subsets has been clearly establish...
journal_title:European journal of immunology
pub_type: 评论,杂志文章
doi:10.1002/eji.201343323
更新日期:2013-03-01 00:00:00
abstract::Interferon regulatory factor-1 (IRF-1) is a transcription factor regulating the expression of several cytokines. Using IRF-1 knockout (KO) mice, the role of IRF-1 in the production and activity of IL-18 was evaluated. Administration of IL-12 or concanavalin A significantly increased levels of circulating IL-18 in wild...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/1521-4141(200102)31:2<369::aid-immu369
更新日期:2001-02-01 00:00:00
abstract::A generalized Shwartzman reaction was found to occur in non-SPF-NMRI mice given a local injection of S. marcescens lipopolysaccharide (LPS) in the footpad, followed, with an interval of 24 h, by an i.v. injection. The reaction occurred several hours after the second injection. It was characterized by disseminated subc...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830171228
更新日期:1987-12-01 00:00:00
abstract::The approximately 20-kDa heat-labile toxin produced by enterotoxigenic Bacteroides fragilis is known to be associated with the development of enteritis. However, the molecular mechanism involved is not yet fully understood. In this study, we assessed whether B. fragilis enterotoxin (BFT)-induced enteritis is related t...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200526321
更新日期:2005-09-01 00:00:00
abstract::The lymphoid cell composition of milky spots was analyzed in unprimed mice before and after i.p. immunization with sheep red blood cells. Milky spots contained surface immunoglobulin-positive B lymphocytes, and T cells of the helper and cytotoxic phenotype. After secondary antigen challenge the number of lymphocytes i...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830160828
更新日期:1986-08-01 00:00:00
abstract::The effect of high antigen dose on the activation of cytochrome c peptide-primed lymph node cells was determined in several strains of mice by a limiting dilution analysis. It was found that proliferation of cytochrome c peptide-specific T cells was completely inhibited at high antigen concentration in C57BL/6 but onl...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830160107
更新日期:1986-01-01 00:00:00
abstract::Vaccination of mice with irradiated Schistosoma mansoni larvae confers high levels of immunity which is mediated by Th1-type lymphocytes. To investigate a possible role for IL-12 in the induction of protection, we have compared the immune response of IL-12 p40-deficient (KO) mice and their C57BL/6 (WT) counterparts fo...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/(SICI)1521-4141(199809)28:09<2827::AID-IMM
更新日期:1998-09-01 00:00:00
abstract::Plasma cells secreting IgG, M, and A abound in the synovium of patients with rheumatoid arthritis, yet their immunoglobulin repertoire and clonal relationship remain to be elucidated. Locally synthesized immunoglobulins probably contribute to the chronic joint inflammatory processes which are characteristic of these p...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830270219
更新日期:1997-02-01 00:00:00
abstract::Aging is accompanied by altered immunity, resulting in a variable state of poorly understood immunodeficiency. While both the numbers and the functionality of naïve T cells are decreased by aging, the impact of these changes upon immune defense against bacterial pathogens in vivo remains understudied. Using a model of...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.201041141
更新日期:2011-05-01 00:00:00
abstract::In asymptomatic human immunodeficiency virus-1 infection T cells respond normally to allogeneic dendritic cells (DC), but DC show reduced stimulatory capacity. By contrast in HTLV-1 infection no significant changes in allogeneic stimulation were seen but DC-stimulated activity of autologous T cells. In seeking animal ...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830231131
更新日期:1993-11-01 00:00:00
abstract::Six different cell-mediated lympholysis (CML) combinations were established, four of which generated effector cells against the I-E, and two against the I-A molecule. The cell surface phenotype of effector cells was then determined by depletion of cytotoxic T lymphocyte (CTL) activity with antisera and rabbit compleme...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830110611
更新日期:1981-06-01 00:00:00
abstract::C57BL/10ScCr (Cr) mice carry a deletion of the Toll-like receptor 4 (tlr4) gene (i.e. they are tlr4(0/0)) and are thus refractory to LPS effects. Insertion of wild-type tlr4 transgene into the tlr4(0/0) Cr germ line endowed LPS susceptibility in the two transgenic lines created, indicating that TLR4 is the only limiti...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200323431
更新日期:2003-03-01 00:00:00
abstract::Germinal centers support the differentiation of memory B cells and long-lived antibody-secreting cells during infection or upon vaccination. Here, we constructed mice with T cells that selectively lack the chemokine receptor CXCR5 to determine if expression of this receptor by T cells is mandatory for germinal center ...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200636486
更新日期:2007-01-01 00:00:00
abstract::Gradual depletion of CD4+ T cells is a typical characteristic of pathogenic SIV infection. Intriguingly, we find a spontaneous CD4+ T-cell homeostasis in northern pig-tailed macaques (Macaca leonina) during SIVmac239 infection. ...
journal_title:European journal of immunology
pub_type: 信件
doi:10.1002/eji.201747284
更新日期:2018-02-01 00:00:00