Abstract:
:The scavenger receptor-A I/II (SR-A) and macrophage receptor with collagenous domain (MARCO) share a common domain organisation and ligand repertoire, including selected polyanions and gram-positive and -negative organisms, but differ in fine specificity of ligand binding, tissue distribution and regulation. Neisseria meningitidis (NM) is a selective ligand for SR-A, but there is evidence for an additional SR-A-independent, polyanion-sensitive component for NM recognition. We therefore studied the relative contribution of MARCO and SR-A to binding of NM by resident and elicited peritoneal macrophages obtained from MARCO-/-, SR-A-/- and SR-A-MARCO-/- mice. Results confirmed that both mouse and human MARCO are able to bind NM independently of NM LPS. MARCO and SR-A contributed independently to NM binding, correlating with their expression levels in different cell populations, but neither of these two molecules was required for release of TNF-alpha and nitric oxide. We propose that the TLR-dependent induction of MARCO by innate immune stimulation enhances recognition and uptake of pathogenic organisms such as NM, thus contributing to host defence against infection.
journal_name
Eur J Immunoljournal_title
European journal of immunologyauthors
Mukhopadhyay S,Chen Y,Sankala M,Peiser L,Pikkarainen T,Kraal G,Tryggvason K,Gordon Sdoi
10.1002/eji.200535389keywords:
subject
Has Abstractpub_date
2006-04-01 00:00:00pages
940-9issue
4eissn
0014-2980issn
1521-4141journal_volume
36pub_type
杂志文章abstract::The magnitude and quality of T cell responses generated when Ag is targeted to receptors on DC is influenced by both the specific receptor targeted and its distribution among DC subsets. Here we examine the targeting of the model Ag OVA to potential DC targets, including CD11c, CD205, MHC class II, CD40, TLR2 and Fcga...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200838302
更新日期:2008-08-01 00:00:00
abstract::A reverse hemolytic plaque assay has been developed which specifically detects secretion of human immune interferon (Hu IFN-gamma) at the single cell level. Unstimulated peripheral blood lymphocytes from healthy adult volunteers spontaneously secreted IFN-gamma. Stimulation of these cells with concanavalin A, phytohem...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830130308
更新日期:1983-03-01 00:00:00
abstract::The proliferative state of functionally defined populations of size-separated pre-B cells was investigated. The results presented here support the hypothesis that pre-B cells are in the G2 phase when stable membrane IgM is first expressed. Small resting precursor cells significantly adhere to nylon wool columns, unlik...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830120406
更新日期:1982-04-01 00:00:00
abstract::The requirement for cell interactions in T cell activation has been studied with two continuously in vitro growing T cell clones. These clones are specific for minor histocompatibility antigens, are H-2K restricted, and one clone is functionally a cytolytic T lymphocyte. Both can proliferate when interleukin 2 is adde...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830141011
更新日期:1984-10-01 00:00:00
abstract::Monoclonal antibodies MRC-OX6 and MRC-OX3 were used to define biosynthetically inter-related subsets of I-A-equivalent class II molecules from Lewis rat spleen cells. MRC-OX6 was shown to recognize specifically multiple forms of the class II molecule arising along its maturation pathway from the origin of polypeptide ...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830151216
更新日期:1985-12-01 00:00:00
abstract::A fraction of activated CD8+ T cells expresses CD40 ligand (CD40L), a molecule that plays a key role in T cell-dependent B cell stimulation. CD8+ T cell clones were examined for CD40L expression and for their capacity to allow the growth and differentiation of B cells, upon activation with immobilized anti-CD3. Accord...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830251039
更新日期:1995-10-01 00:00:00
abstract::Acute P. falciparum malaria is associated with loss of in vitro T cell responsiveness to antigenic stimulation, and with high plasma levels of soluble interleukin 2 receptor (IL 2R). In the present study peripheral T cells from acute P. falciparum malaria patients from a malaria-endemic area of Sudan were analyzed for...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830210523
更新日期:1991-05-01 00:00:00
abstract::Acute and chronic airway inflammations caused by environmental agents including endotoxin represent an increasing health problem. Local TNF production may contribute to lung dysfunction and inflammation, although pulmonary neutrophil recruitment occurs in the absence of TNF. First, we demonstrate that membrane-bound T...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200636371
更新日期:2007-03-01 00:00:00
abstract::Animal models for HIV research have been indispensible in fulfilling Koch's postulate and in exploring issues of viral infectivity and pathogenesis, sequence divergence, route(s) of acquisition, tissue distribution and tropism, immunogenicity and protection capacity of vaccine candidates, escape from adaptive immunity...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200939576
更新日期:2009-08-01 00:00:00
abstract::The CD4 and CD8 coreceptor molecules on immature thymocytes participate in T cell repertoire selection. To examine more definitively the role of CD4 and CD8 in the negative and positive selection of immature thymocytes, we generated transgenic mice with elevated surface CD4 expression and mated them with mice expressi...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830220317
更新日期:1992-03-01 00:00:00
abstract::CD4+ CD25+ Foxp3+ regulatory T cells (Treg) are natural suppressors of autoimmunity but they can also dampen the effective clearance of infectious organisms. These cells have the potential to be exploited to prevent transplant rejection and to treat autoimmune disease. A paper in this issue of the European Journal of ...
journal_title:European journal of immunology
pub_type: 评论,杂志文章,评审
doi:10.1002/eji.200635967
更新日期:2006-04-01 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::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...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830230625
更新日期:1993-06-01 00:00:00
abstract::All leukocytes express the cell surface glycoprotein CD45, which has intrinsic intracellular protein tyrosine phosphatase activity. CD45 is known to play a regulatory role in activation-induced signaling in lymphocytes; however, little is known of its role in non-lymphoid leukocytes. Therefore, we examined the potenti...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/(SICI)1521-4141(199905)29:05<1467::AID-IMM
更新日期:1999-05-01 00:00:00
abstract::To investigate the role of TCR-pMHC interaction in regulating lung CD8 tissue-resident T cell (TR ) differentiation, polyclonal responses were compared against NP366-374 /Db and PA224-233 /Db , two immunodominant epitopes that arise during influenza A infection in mice. Memory niches distinct from iBALTs develop withi...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.201747174
更新日期:2018-01-01 00:00:00
abstract::Following immunization with a complex antigen, a B cell internalizes this antigen through an interaction between its surface immunoglobulins and an epitope of the antigen. Enzymatic processing of the antigen frees one or more short peptide determinants (TD) which bind to class II molecules of the B cell. If the comple...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830210633
更新日期:1991-06-01 00:00:00
abstract::The purpose of this work was to study the interrelationship of proliferation and secretion of plasminogen activator (PA) and interferon (IFN) by murine macrophages. For induction of macrophage proliferation and secretion of PA, concanavalin A (Con A) was used. Secretion of IFN was induced by polyinosinic polycytidylic...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830130210
更新日期:1983-02-01 00:00:00
abstract::Heavy chain diseases (HCD) are neoplastic proliferations of B cells which secrete truncated immunoglobulin heavy chains without associated light chains. These proteins are encoded by mutated genes which may also give rise to truncated membrane immunoglobulins. The neoplastic cells proliferate in vivo although they can...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830211110
更新日期:1991-11-01 00:00:00
abstract::Four cell lines derived from spontaneous BALB/c lymphoma tumors were analyzed with regard to the type of their membrane immunoglobulins (Ig). Using lactoperoxidase iodination of membrane proteins combined with immunoprecipitation and electrophoresis on polyacrylamide gel, three of these cell lines (X16c, L10A and K46)...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830110605
更新日期:1981-06-01 00:00:00
abstract::Fc gamma receptor-bearing U937 cells, when incubated in serum-free buffer, were found to release spontaneously a suppressor material for pokeweed mitogen-drigen IgG synthesis which could be retained on Sepharose 4B-IgG immunosorbents. Immunosorbents coupled with IgM or F (ab')2 fragments of IgG were unable to retain t...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830160106
更新日期:1986-01-01 00:00:00
abstract::Cyclopentenone prostaglandins (CP-PG), such as prostaglandin A1 (PGA1) or 15-deoxy-Delta(12,14)-prostaglandin J2 (PGJ2), induce apoptosis in different cell types. PGJ2 is also a potent activator of the peroxisome proliferator-activated receptor-gamma (PPARgamma). We investigated whether PPARgamma regulates CP-PG-induc...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200324053
更新日期:2004-01-01 00:00:00
abstract::Local graft-vs.-host reaction (GVHR) was induced in rats by injecting parental cells into young F1 recipients. As a consequence of antigenic stimulation in the course of developing GVHR in the responding lymph nodes, the number of interleukin 2-receptor (IL 2R)-bearing T cells increased from less than 1% up to 10% of ...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830161020
更新日期:1986-10-01 00:00:00
abstract::The expression of human leukocyte function-associated antigens (HLFA, equivalents of murine LFA-1) was studied on early lympho-hemopoietic cells in infant thymus and normal bone marrow by double immunofluorescence methods, cell sorting and colony-forming assays. Monoclonal antibodies MHM-24 recognizing the alpha chain...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830160513
更新日期:1986-05-01 00:00:00
abstract::In humans infected with lymphatic filariasis, microfilaraemia [the presence of microfilariae (Mf) in the blood] is generally associated with both poor antigen (Ag)-specific proliferative responses and with protection from severe disease. Clonal deletion has been suggested as one possible mechanism by which parasite-re...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/1521-4141(200203)32:3<858::AID-IMMU858>3.0
更新日期:2002-03-01 00:00:00
abstract::Interferon-gamma inducing factor (IGIF) is a recently identified cytokine which stimulates the production of interferon-gamma (IFN-gamma) by T cells and enhances natural killer (NK) cell cytolytic activity. Protein fold recognition, structure prediction and comparative modeling have revealed that IGIF is a member of t...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830271107
更新日期:1997-11-01 00:00:00
abstract::We have produced a chimeric single-chain T cell receptor (TcR) that combines the specific antibody recognition function and TcR/CD3 signaling properties within the same polypeptide chain. This hybrid molecule consisted of a single-chain antibody combining site that was connected over a short spacer to the transmembran...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830230705
更新日期:1993-07-01 00:00:00
abstract::A method for infection of lymphocytes with Moloney(Abelson) murine leukemia virus [M(A)-MuLV] is described. Only lymphoblasts obtained after stimulation of normal spleen cells by the B cell mitogen lipopolysaccharide (LPS) were satisfactory targets for virus-specific, secondary cytotoxic T lymphocytes (CTL), whereas s...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830110316
更新日期:1981-03-01 00:00:00
abstract::Priming mice with a chicken gamma globulin (CGG) carrier protein significantly accelerated the onset of somatic mutation in the V chi Ox1 gene when the mice were subsequently immunized with 2-phenyl-5-oxazolone (phOx) coupled to CGG. The first mutations were already detected 7 days after immunization, while in the tru...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830250834
更新日期:1995-08-01 00:00:00
abstract::The major role of cells of the dendritic family in immunity and tolerance has been amply documented. Since their discovery in 1973, these cells have gained increasing interest from immunologists, as they are able to detect infectious agents, migrate to secondary lymphoid tissue, and prime naive T lymphocytes, thereby ...
journal_title:European journal of immunology
pub_type: 杂志文章,评审
doi:10.1002/eji.201242480
更新日期:2012-10-01 00:00:00
abstract::The migration of immunocytes within the extracellular matrix (ECM) is influenced by the activation state of the incoming cell and its responses to the presence of chemokines and cytokines. We studied the regulatory role of TGF-beta1 on T cell homing to secondary lymphatic organs, such as the spleen, and chemotaxis wit...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/1521-4141(200201)32:1<193::AID-IMMU193>3.0
更新日期:2002-01-01 00:00:00