Abstract:
:The effect of phorbol 12-myristate 13-acetate (PMA) on the synthesis, assembly and processing of the components of the T cell receptor (TcR) was studied with special focus on the CD3 omega chain. Treatment of the human leukemic T cell line Jurkat with PMA increased the synthesis of the Ti alpha, CD3 gamma and CG3 zeta chains two- to threefold and the synthesis of Ti beta and CD3 delta epsilon omega complexes five- to sevenfold as assessed by metabolic labeling, immunoprecipitation and sodium dodecyl sulfate-polyacrylamide gel electrophoresis followed by scanning densitometry. The amount of total assembled TcR complexes increased approximately threefold and the maturation of the TcR was not affected as determined by analysis of oligosaccharide side chain processing in the Golgi apparatus. Activation of Jurkat cells with anti-CD3 monoclonal antibody, calcium ionophore, or mitogenic lectins did not affect the synthesis of the TcR components. In other cells studied (the human leukemic T cell line CEM, a panel of variants of the Jurkat T cell line and peripheral blood mononuclear cells) PMA also increased the synthesis of the TcR components. However, for all cell lines studied the amount of TcR complexes expressed on the cell surface was decreased after 16 h of PMA treatment. Based on these results we propose a role of CD3 omega in retention of TcR complexes. From PMA-treated CEM cells more than 50-fold the amount of CD3 delta epsilon omega complexes was immunoprecipitated as compared to the amount obtained from untreated Jurkat cells, and these observations indicate that the CEM cell line may be a qualified candidate for purification of CD3 omega.
journal_name
Eur J Immunoljournal_title
European journal of immunologyauthors
Vangsted A,Neisig A,Wallin H,Zeuthen J,Geisler Cdoi
10.1002/eji.1830230625subject
Has Abstractpub_date
1993-06-01 00:00:00pages
1351-7issue
6eissn
0014-2980issn
1521-4141journal_volume
23pub_type
杂志文章abstract::Double-negative (DN) thymocyte subsets were examined in mice deficient in the CD3 zeta chain (zeta-/-). The HSA+CD44-CD25- subset was found to be missing, and DN thymocytes seemed to differentiate directly from HSA+CD25+CD44- cells to double-positive (DP) cells. When fetal thymic ontogeny was examined, we found a mark...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830240828
更新日期:1994-08-01 00:00:00
abstract::Adult, male Lewis rats received a single injection of 5-bromo-2'-deoxyuridine (BrdUrd) i.v. to label proliferating cells in the S phase of the cell cycle. After 1 and 24 h the thymus, bone marrow, blood, spleen, peripheral, cervical and mesenteric lymph nodes as well as Peyer's patches were removed. In cell suspension...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830190619
更新日期:1989-06-01 00:00:00
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journal_title:European journal of immunology
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更新日期:1987-09-01 00:00:00
abstract::Mice lacking the tumor suppressor gene p53 spontaneously develop T-cell lymphomas at a high rate, suggesting that in these mice lymphomas arise due to defective apoptosis mechanisms in T cells mediated by p53. However, a role of p53 in regulation of T-cell responses or apoptosis has been poorly defined. TCR-mediated s...
journal_title:European journal of immunology
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abstract::Among 15 anti-DNA antibody-producing hybridomas derived from a single NZB X NZW F1 mouse, an IgM and an IgG were shown to use the same VH gene of the Q52 family. Using a combination of two primers both consisting of a mixture of oligonucleotides (one complementary to the 5' end of VH segment and one to the 3' end of V...
journal_title:European journal of immunology
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journal_title:European journal of immunology
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doi:10.1002/eji.1830171228
更新日期:1987-12-01 00:00:00
abstract::Antimicrobial peptides human beta-defensins (hBD) are mainly produced by epithelia of several organs including skin, and participate in innate immunity by killing invading pathogens. Besides their microbicidal activities, hBD activate several inflammatory and immune cells. Since hBD are generated by tissues where mast...
journal_title:European journal of immunology
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abstract::IL-33 is a novel multi-functional IL-1 family member that, in contrast to other family members, is associated with Th2 responses. IL-33 signals via a heterodimer composed of its receptor, IL-1 receptor-like-1 (IL-1RL1), more commonly known as ST2L, and the IL-1R accessory protein. ST2L is expressed by endothelial cell...
journal_title:European journal of immunology
pub_type: 评论,杂志文章
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更新日期:2009-12-01 00:00:00
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journal_title:European journal of immunology
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更新日期:1989-03-01 00:00:00
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journal_title:European journal of immunology
pub_type: 临床试验,杂志文章
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更新日期:2012-04-01 00:00:00
abstract::In viral meningitis the inflammatory response involves activated T cells and monocytes which are recruited into the subarachnoid space. To identify the chemotactic signals attracting the cells to the site of infection in the meninges, we measured the levels of two CXC chemokines, interferon-gamma (IFN-gamma) inducible...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830271004
更新日期:1997-10-01 00:00:00
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journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830230835
更新日期:1993-08-01 00:00:00
abstract::Btk is a member of the Tec family of protein tyrosine kinases expressed in B cells. It is stimulated following cross-linking of the B cell receptor which leads to the autophosphorylation of a specific residue in the SH3 domain, Y223. Previous work using Btk-derived fusion proteins has shown that the Btk SH3 domain bin...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/(SICI)1521-4141(199907)29:07<2269::AID-IMM
更新日期:1999-07-01 00:00:00
abstract::The transferrin receptor (TfR) was recently proposed as putative natural killer (NK) cell target structure. Here data are presented against this hypothesis and it is shown that low TfR expression and high NK sensitivity can occur concommitantly . K562 cells were studied at various stages of cell proliferation. No chan...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830140412
更新日期:1984-04-01 00:00:00
abstract::Mucosal boosting of BCG-immunised individuals with a subunit tuberculosis (TB) vaccine would be highly desirable, considering that the lungs are the principal port of entry for Mycobacterium tuberculosis (MTB) and the site of the primary infection and reactivation. However, the main roadblock for subunit TB vaccine de...
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pub_type: 杂志文章
doi:10.1002/eji.201343887
更新日期:2014-02-01 00:00:00
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journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/(sici)1521-415x(200001)30:1<14::aid-biuz14
更新日期:2000-01-01 00:00:00
abstract::Soluble HLA class I (sHLA-I) molecules can regulate survival of NK cells and their anti-tumor killing activity. Herein, we have analysed whether interaction of sHLA-I with CD8 and/or different isoforms of killer Ig-like receptors (KIR) induced secretion of transforming growth factor (TGF)-beta1. CD8+KIR- NK cell clone...
journal_title:European journal of immunology
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doi:10.1002/eji.200939728
更新日期:2009-12-01 00:00:00
abstract::Postganglionic sympathetic neurons innervate secondary lymphoid organs and secrete norepinephrine (NE) as the primary neurotransmitter. NE binds and signals through five distinct members of the adrenergic receptor family. In this study, we show elevated expression of the β2-adrenergic receptor (ADRB2) on primary human...
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journal_title:European journal of immunology
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更新日期:1984-05-01 00:00:00
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abstract::It was previously observed that MOPC-315EL, a subline of the BALB/c myeloma tumor MOPC-315, varies in its ability to interact with primary anti-H-2d cytotoxic thymus-derived lymphocytes (CTL) while remaining invariant in its expression of cell surface antigens recognized by anti-H-2d sera. This paper demonstrates (a) ...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830080907
更新日期:1978-09-01 00:00:00
abstract::The fine specificity of murine B 10.A/SgSn (B 10.A) T cells reactive with hen egg-white lysozyme (HEL) has been studied through the use of reduced, carboxymethylated HEL, a set of peptides encompassing the entire molecule, and a set of variant lysozymes from other species. Cells were taken from the lymph nodes drainin...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830100705
更新日期:1980-07-01 00:00:00
abstract::Upon treatment with lipopolysaccharide (LPS), primary B cells proliferate and differentiate into plasma cells with concomitant up-regulation of immunoglobulin (Ig) gene expression. Here we examine the role of the Igkappa 3' enhancer in this process using a kappa3'-enhancer-driven beta-globin reporter gene in transgeni...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/(SICI)1521-4141(199903)29:03<872::AID-IMMU
更新日期:1999-03-01 00:00:00
abstract::The role of redox regulation in immune-mediated arthritis has been previously described. However, the relationship between innate immune cells, including innate lymphoid cells (ILCs) and phagocyte-derived ROS, in this process remains unclear. Here, we characterize ILCs and measure the IL-1 family cytokines along with ...
journal_title:European journal of immunology
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更新日期:2019-11-01 00:00:00
abstract::Interleukin-15 (IL-15) is an inflammatory cytokine whose role in autoimmune diseases has not been fully elucidated. Th17 cells have been shown to play critical roles in experimental autoimmune encephalomyelitis (EAE) models. In this study, we demonstrate that blockade of IL-15 signaling by TMβ-1 mAb treatment aggravat...
journal_title:European journal of immunology
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abstract::The immune mechanisms underlying immunization-induced protection of mice from lethal central nervous system (CNS) listeriosis were evaluated by immunohistochemistry, flow cytometry of leukocytes isolated from the brain, reverse transcription-polymerase chain reaction analysis of intracerebral (i.c.) tumor-necrosis fac...
journal_title:European journal of immunology
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更新日期:1995-08-01 00:00:00
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journal_title:European journal of immunology
pub_type: 杂志文章
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更新日期:1986-03-01 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::The stimulatory as well as the inhibitory capacity of alloantisera has been investigated with respect to rat mast cell functions. Alloantibody against alloantigens coded for by the major histocompatibility (H-1) gene region promoted histamine release from purified LEW mast cells. This process was found to be complemen...
journal_title:European journal of immunology
pub_type: 杂志文章
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更新日期:1976-08-01 00:00:00
abstract::Previous reports suggested that lethal toxin (LT)-induced caspase-1 activity and/or IL-1beta accounted for Bacillus anthracis (BA) infection lethality. In contrast, we now report that caspase-1-mediated IL-1beta expression in response to BA spores is required for anti-BA host defenses. Caspase-1(-/-) and IL-1beta(-/-)...
journal_title:European journal of immunology
pub_type: 杂志文章
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更新日期:2008-06-01 00:00:00