Abstract:
:Fc gamma receptor I-positive (CD64+) and Fc gamma receptor I-negative (CD64-) monocytes were prepared from highly purified (elutriation-derived) human monocytes by cytofluorograph cell sorting, and a phenotypical and functional dissociation of the isolated CD64+ and CD64- monocyte subsets is demonstrated. Surface analyses revealed that the surface antigen pattern of CD64+ monocytes corresponds to the phenotype of typical unseparated monocytes. In contrast, CD64- monocytes are characterized by high expression of major histocompatibility complex (MHC) class I antigens (HLA-A, -B, -C) and MHC class II antigens (HLA-DR, -DP, -DQ), and low expression of the monocyte-specific marker CD14 which is found on nearly all CD64+ monocytes. However, 75% of the CD64- cells were found to be esterase-positive, and 85% were positive for the the CD64- cells were found to be esterase-positive, and 85% were positive for the monocyte/macrophage-specific intracellular antigen CD68. Furthermore, CD64- monocytes show significantly higher expression of CD45RA and Fc gamma receptor III (CD16) than CD64+ monocytes, but lack the natural killer cell markers CD56 and CD57. Functional studies showed that cells of the minor CD64- monocyte subset have a higher accessory cell capacity in antigen-driven T cell activation than CD64+ monocytes. CD64- monocytes pretreated with PPD (purified protein derivative of tuberculin) induced up to tentimes more interferon-gamma and also higher proliferation in responding autologous T cells than PPD-pretreated CD64+ monocytes. Similar results were obtained for T cells in mixed leukocyte reaction. Interferon-gamma release and proliferation of allogeneic lymphocytes were consistently higher in the presence of irradiated CD64- monocytes than of irradiated CD64+ monocytes. Furthermore, when CD64- and CD64+ monocytes were stimulated with Newcastle disease virus, we measured an up to 67-fold higher interferon-alpha release from CD64- than from CD64+ monocytes, indicating a higher anti-viral capacity of this subset. CD64- monocytes showed lower activity in the phagocytosis of unopsonized particles and also lower zymosan- or latex-induced chemiluminescence than CD64+ monocytes. These findings indicate that CD64- monocytes, although comprising only less than 10% of all peripheral blood monocytes, represent a monocyte subpopulation efficiently interacting in vitro with T cells and, additionally, are the major source of interferon-alpha.
journal_name
Eur J Immunoljournal_title
European journal of immunologyauthors
Grage-Griebenow E,Lorenzen D,Fetting R,Flad HD,Ernst Mdoi
10.1002/eji.1830231213subject
Has Abstractpub_date
1993-12-01 00:00:00pages
3126-35issue
12eissn
0014-2980issn
1521-4141journal_volume
23pub_type
杂志文章abstract::We previously demonstrated that cholera toxin (CT) is highly efficient as a combined carrier and adjuvant for dendritic cell (DC) vaccination, inducing strong Th1-dominated B cell and CD4(+) T cell responses. In this study we show that vaccination with DC pre-pulsed ex vivo with CT-conjugated OVA (OVA-CT) gives rise t...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200324368
更新日期:2004-05-01 00:00:00
abstract::Here we demonstrate that components of the entire complement cascade are fixed on the surface of erythrocytes infected with the human malarial parasite Plasmodium falciparum. Despite the activation of lytic complement factors, no complement-mediated lysis of P. falciparum-infected erythrocytes occurred only in the abs...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830271034
更新日期:1997-10-01 00:00:00
abstract::The recognition of lipid antigens by T cells is a complex and fascinating phenomenon. The MHC-like molecules of the CD1 family have evolved to present a wide variety of both self and foreign lipids for recognition by T-cell receptors. While much progress has been made in our understanding of the NKT cells that recogni...
journal_title:European journal of immunology
pub_type: 评论,杂志文章
doi:10.1002/eji.201141408
更新日期:2011-03-01 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::Major histocompatibility complex (MHC) class I molecules present peptides from endogenous proteins. However, in some cases class I-restricted peptides can also derive from exogenous antigens. This MHC class I exogenous presentation could be involved in minor histocompatibility antigen (mHAg)-disparate allograft reject...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830271251
更新日期:1997-12-01 00:00:00
abstract::Surviving an infection requires the generation of an immune response that controls the invading pathogen while limiting collateral damage to self tissues that may result from an exuberant immune response. Various populations of regulatory cells, including Foxp3+ Treg, have been shown to play a central role in the esta...
journal_title:European journal of immunology
pub_type: 杂志文章,评审
doi:10.1002/eji.200738120
更新日期:2008-04-01 00:00:00
abstract::It has been shown previously that three different H-2-associated genes control the resistance to viremia and leukemia in Moloney virus-infected mice: Rmv. 1, mapping to the I-A or less probably K regions; Rmv. 2, mapping to the I-C, S or G regions and Rmv. 3, mapping to the D or T regions. Experiments have been perfo...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830101205
更新日期:1980-12-01 00:00:00
abstract::We have determined the cell cycle position of individual mouse leukemia L 1210 cells by cytophotometric and autoradiographic techniques and simultaneously determined the amount of histocompatibility antigens expressed on the surface of individual cells by quantitative immunofluorescence. Interferon treatment of L 1210...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830060112
更新日期:1976-01-01 00:00:00
abstract::The delivery of T-cell help to B cells is antigen-specific, MHC-restricted, and CD40L (CD154) dependent. It has been thought that when a T cell recognizes an antigen-presenting B cell, CD40L expressed on the T-cell surface engages with CD40 on the surface of B cells as long as the cells remain conjugated. By adding fl...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.201646504
更新日期:2017-01-01 00:00:00
abstract::IL-23, a proximal regulator of IL-17, may be a major driving force in the induction of autoimmune inflammation. We have used a model of subdiabetogenic treatment with multiple low doses of streptozotocin (MLD-STZ; 4 x 40 mg/kg body weight) in male C57BL/6 mice to study the effect of IL-23 on immune-mediated beta cell ...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200535325
更新日期:2006-01-01 00:00:00
abstract::In rheumatoid arthritis (RA), T cells in the inflamed joint are considered to play a crucial role in the pathogenesis. However, despite the fact that synovial T cells have an activated memory phenotype, they are functionally suppressed upon combined CD3 and CD28 stimulation. Here, we analyzed the contribution of both ...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/(SICI)1521-4141(199805)28:05<1554::AID-IMM
更新日期:1998-05-01 00:00:00
abstract::The problem of the structural relationship between suppressive IgG-binding factor and low-affinity receptors for the Fc portion of IgG (Fc gamma RII) has not yet been solved. In the present work we have isolated a recombinant soluble Fc gamma RII containing only the two external domains of Fc gamma RII, and analyzed i...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830191213
更新日期:1989-12-01 00:00:00
abstract::The genetic control of in vitro primary syngeneic sensitization on monolayers of thyroid epithelial cells was investigated both at the level of the responder lymphocytes and that of stimulator thyroid epithelial cells using congenic resistant strains of mice. It clearly appears that similar to the in vivo model of exp...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830131115
更新日期:1983-11-01 00:00:00
abstract::Recent studies have shown that in humans the germinal center reactions produce three types of V(D)J mutated B cells in similar proportions, i.e. Ig-switched, IgD-IgM+ (IgM-only) and IgD+IgM+ cells, and that together they form the CD27+ compartment of recirculating B cells. We investigated the Ig isotype switch capacit...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/1521-4141(200101)31:1<243::AID-IMMU243>3.0
更新日期:2001-01-01 00:00:00
abstract::Several drugs targeting members of the TNF superfamily or TNF receptor superfamily (TNFRSF) are widely used in medicine or are currently being tested in therapeutic trials. However, their mechanism of action remains poorly understood. Here, we explored the effects of TNFRSF co-stimulation on murine Foxp3+ regulatory T...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.201948393
更新日期:2020-07-01 00:00:00
abstract::Listeria monocytogenes induces the formation of inflammasomes and subsequent caspase-1 activation, and the adaptor apoptosis-associated speck-like protein containing a CARD (ASC) is crucial for this response. However, the role of ASC in L. monocytogenes infection in vivo is unclear. In this study, we demonstrate that ...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.201444673
更新日期:2014-12-01 00:00:00
abstract::The number of patients with severe atopic dermatitis (AD) has been on the rise recently. We are therefore urgently in need of a treatment that can suppress Th2 cell-mediated responses in an Ag-specific fashion. Oligodeoxynucleotides (ODN)containing CpG motifs (CpG ODN) have been highlighted as immunomodulators that re...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200526274
更新日期:2005-11-01 00:00:00
abstract::The influence of muramyl dipeptide (N-acetylmuramyl-L-alanyl-D-isoglutamine) on the rejection of mouse skin allografts was investigated. While the 0.1-mg dose administered on days 7, 6, 5 prior to transplantation caused significant prolongation of the graft survival, the 0.5-mg dose administered on days 3, 2, 1 prior ...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830131015
更新日期:1983-10-01 00:00:00
abstract::Transporter associated with antigen processing (TAP)-competent and TAP-deficient cell lines were transfected with expression plasmids encoding either the wild-type (wt) large tumor antigen (T-Ag) of SV40, or a truncated cytoplasmic variant (cT-Ag) of this viral protein. Stable expression of comparable levels of both f...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830270828
更新日期:1997-08-01 00:00:00
abstract::The monoclonal antibody W6/32.1 recognizes a public determinant on the HLA-A, B and C antigens of all tested human haplotypes. Though the antibody does not bind to normal mouse cells of any H-2 haplotype, it does show an unexpected specificity for the T cell leukemia line MBL-2 from a C57BL/6 mouse. It is shown that t...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830130213
更新日期:1983-02-01 00:00:00
abstract::Type I IFN are cytokines which play a central role in host resistance to viral or microbial infections and are important components linking innate and adaptive immunity. We and others have previously demonstrated that the production of IFN-beta by DC following bacterial infections or TLR triggering influences, in an a...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200737566
更新日期:2007-12-01 00:00:00
abstract::The present experiments address functional antibody diversity and clonal distribution in murine available repertoires. IgM-containing supernatants were prepared by unbiased, polyclonal stimulation of resting splenic B cells from C57BL/6 mice, to ensure similar numbers of responding clones/culture and equivalent growth...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/(SICI)1521-4141(199804)28:04<1204::AID-IMM
更新日期:1998-04-01 00:00:00
abstract::We have constructed four different deletion mutants of a chimeric mouse-human IgG3 anti-(4-hydroxy-3-nitrophenyl)acetyl/(5-iodo-4 hydroxy-3 nitrophenyl) acetyl (NP/NIP) antibody lacking one or more of the four exons coding for the hinge region. The mutant variants all retained intact hinge region epitopes since they a...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830190912
更新日期:1989-09-01 00:00:00
abstract::A significant proportion of memory B cells home to bone marrow (BM) which is a major site of anamnestic antibody responses in mice. We hypothesized that memory T cells likewise accumulate in BM perhaps to provide help for antibody production, and that the compartment of CD4+ T cells in BM of unimmunized mice would be ...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/(SICI)1521-4141(199903)29:03<1051::AID-IMM
更新日期:1999-03-01 00:00:00
abstract::X-linked agammaglobulinemia (XLA) is a primary immunodeficiency of the B-cell compartment caused by a defective gene encoding for the tyrosine kinase (btk) essential for B cell differentiation. Affected males undergo recurrent pyogenic infections and deficient immunoglobulin production. Peripheral blood T cells from 6...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/1521-4141(200106)31:6<1927::aid-immu1927>3
更新日期:2001-06-01 00:00:00
abstract::Cytotoxic T lymphocytes (CTL) generally recognize peptides derived from endogenously expressed proteins in association with nascent major histocompatibility complex (MHC) class I molecules. In contrast, peptides derived from exogenous proteins associate with MHC class II following endocytosis to an endosomal compartme...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830240721
更新日期:1994-07-01 00:00:00
abstract::Oxidant stress can initiate or enhance inflammatory responses during tissue injury, possibly through activation of redox-sensitive chemokines. Because the transcription factor Nrf2 (NF-E2-related factor 2) is responsive to oxidative stress, and induces expression of cytoprotective and antioxidant genes that attenuate ...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200526116
更新日期:2005-11-01 00:00:00
abstract::CD23-deficient and anti-CD23 monoclonal antibody-treated mice were used to investigate the role of the low-affinity receptor for IgE (CD23) in allergic airway inflammation and airway hyperresponsiveness (AHR). While there were no significant differences in ovalbumin (OVA)-specific IgE titers and tissue eosinophilia, e...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/(SICI)1521-4141(199909)29:09<2957::AID-IMM
更新日期:1999-09-01 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
更新日期:1979-02-01 00:00:00
abstract::The immaturity of the neonatal immune system in mice is associated with defective IFN-gamma production and Th2-biased immune responses. In this study, infants vaccinated at birth with BCG produced similar concentrations of IFN-gamma in response to PPD and showed similar frequencies of IFN-gamma-producing lymphocytes a...
journal_title:European journal of immunology
pub_type: 临床试验,杂志文章
doi:10.1002/1521-4141(200105)31:5<1531::AID-IMMU1531>3
更新日期:2001-05-01 00:00:00