Abstract:
:Staphylococcus aureus is a major pathogen that can cause a broad spectrum of serious infections including skin infections, pneumonia and sepsis. Peritoneal mast cells have been implicated in the host response towards various bacterial insults and to provide mechanistic insight into the role of mast cells in intraperitoneal bacterial infection we here studied the global effects of S. aureus on mast cell gene expression. After co-culture of peritoneal mast cells with live S. aureus we found by gene array analysis that they up-regulate a number of genes. Many of these corresponded to pro-inflammatory cytokines, including interleukin-3, interleukin-13 and tumour necrosis factor-α. The cytokine induction in response to S. aureus was confirmed by ELISA. To study the role of peritoneal mast cells during in vivo infection with S. aureus we used newly developed Mcpt5-Cre(+) × R-DTA mice in which mast cell deficiency is independent of c-Kit. This is in contrast to previous studies in which an impact of mast cells on bacterial infection has been proposed based on the use of mice whose mast cell deficiency is a consequence of defective c-Kit signalling. Staphylococcus aureus was injected intraperitoneally into mast-cell-deficient Mcpt5-Cre(+) × R-DTA mice using littermate mast-cell-sufficient mice as controls. We did not observe any difference between mast-cell-deficient and control mice with regard to weight loss, bacterial clearance, inflammation or cytokine production. We conclude that, despite peritoneal mast cells being activated by S. aureus in vitro, they do not influence the in vivo manifestations of intraperitoneal S. aureus infection.
journal_name
Immunologyjournal_title
Immunologyauthors
Rönnberg E,Johnzon CF,Calounova G,Garcia Faroldi G,Grujic M,Hartmann K,Roers A,Guss B,Lundequist A,Pejler Gdoi
10.1111/imm.12297subject
Has Abstractpub_date
2014-10-01 00:00:00pages
155-63issue
2eissn
0019-2805issn
1365-2567journal_volume
143pub_type
杂志文章相关文献
IMMUNOLOGY文献大全abstract::Secretory proteins of Mycobacterium tuberculosis are the major immunomodulators of the host immune response. Open reading frame (ORF) Rv2626c, encoding a conserved hypothetical protein eliciting a strong humoral immune response in patients with tuberculosis (TB), was shown to be up-regulated upon infection in mice und...
journal_title:Immunology
pub_type: 杂志文章
doi:10.1111/j.1365-2567.2009.03196.x
更新日期:2010-05-01 00:00:00
abstract::Exposure of thioglycollate-elicited murine peritoneal macrophages to wheat germ agglutinin (WGA) increased markedly the uptake of six different bacteria, which have surface receptors for the lectin. Uptake of Staphylococcus aureus H was higher by 3-5-fold, of S. aureus 52A2 by 1.8-fold, of S. aureus 52A5 by 1.7-fold, ...
journal_title:Immunology
pub_type: 杂志文章
doi:
更新日期:1984-08-01 00:00:00
abstract::Neutrophils make up an essential part of the innate immune system, and are involved both in the initial responses to pathogens, and in orchestrating later immune responses. Neutrophils recognize pathogens through pattern-recognition receptors (PRRs), which are activated by microbial motifs. The Nod-like receptors (nuc...
journal_title:Immunology
pub_type: 杂志文章
doi:10.1111/j.1365-2567.2009.03212.x
更新日期:2010-05-01 00:00:00
abstract::The functional avidity of a cytotoxic T lymphocyte (CTL) is known to be a critical determinant of the efficacy with which it clears pathogens. High avidity cells, which are by definition highly sensitive to peptide antigen, are superior for elimination of viruses and tumours. Our studies have established the ability o...
journal_title:Immunology
pub_type: 杂志文章
doi:10.1111/j.1365-2567.2011.03440.x
更新日期:2011-07-01 00:00:00
abstract::Interleukin 27 (IL-27) has been identified as a potent cytokine in the differentiation of type 1 regulatory T (Tr1) cells through interactions with several key elements, including transcription factors such as aryl hydrocarbon receptor and IL-21. Autocrine production of IL-21 is known to be important for maintaining I...
journal_title:Immunology
pub_type: 杂志文章
doi:10.1111/imm.12789
更新日期:2017-11-01 00:00:00
abstract::Mice injected in the footpad with carrageenin developed local inflammation which peaked at 48 hr. This delayed-type footpad swelling was significantly reduced in mice injected intraperitoneally (i.p.) with a specific nitric oxide (NO) synthase inhibitor, L-NGmonomethyl-arginine (L-NMMA). The draining lymph node (DLN) ...
journal_title:Immunology
pub_type: 杂志文章
doi:
更新日期:1994-07-01 00:00:00
abstract::The delayed-type-hypersensitivity (DTH) reaction observed in mice primed i.v. with low doses of sheep red blood cells is not detectable after priming with large doses. Estimation of the number of DTH mediating cells (DTH-C) was performed by titration (D50 determination) using local adoptive transfer of these cells mix...
journal_title:Immunology
pub_type: 杂志文章
doi:
更新日期:1978-12-01 00:00:00
abstract::Among peripheral T cells, the expression of CD4 and CD8 is almost mutually exclusive. However, here we show, using flow cytometric analysis, that ex vivo approximately 6% of rat T cells stained for both CD4 and CD8. These double positive cells were also detected by confocal microscopy. Only around 50% of double positi...
journal_title:Immunology
pub_type: 杂志文章
doi:10.1046/j.1365-2567.2000.00071.x
更新日期:2000-10-01 00:00:00
abstract::Immunoglobulin E (IgE)-dependent mechanisms play a pivotal role in mediating allergic disease. Previously, VH-Cepsilon transcripts from blood or spleen of atopic asthmatics have been analysed for VH gene usage and patterns of somatic mutation. An over-representation of the minor VH5 family has been observed, consisten...
journal_title:Immunology
pub_type: 杂志文章
doi:10.1046/j.1365-2567.1999.00910.x
更新日期:1999-12-01 00:00:00
abstract::Electron microscopic findings made on microsomal fractions of rat liver after treatment with microsomal antibodies obtained from the blood of patients diagnosed as having chronic aggressive hepatitis and liver cirrhosis and after incubation with peroxidase-labelled antihuman IgG are described and presented in this pap...
journal_title:Immunology
pub_type: 杂志文章
doi:
更新日期:1977-06-01 00:00:00
abstract::Down-regulated chemerin expression has been reported to correlate with poor prognosis of several types of cancer including melanoma. All-trans retinoic acid (atRA) is a potent inducer of chemerin, and we previously reported that atRA inhibited murine melanoma growth through enhancement of anti-tumor T-cell immunity. H...
journal_title:Immunology
pub_type: 杂志文章
doi:10.1111/imm.13065
更新日期:2019-07-01 00:00:00
abstract::BALB/c mice develop myasthenic symptoms after immunization with rodent acetylcholine receptor (AChR). After immunization with Torpedo AChR (TAChR), their CD4+ cells become strongly sensitized against a conserved region of the TAChR alpha subunit sequence (residues alpha 304-322), and cross-react vigorously with the ho...
journal_title:Immunology
pub_type: 杂志文章
doi:
更新日期:1994-05-01 00:00:00
abstract::The third component of complement (C3) is synthesized and released by cultured human capillary endothelial cells. After the incubation of cells in a methionine-free medium containing 35S-methionine for 48 hr, culture supernatants were immunoprecipitated with anti-human C3 serum. SDS solubilization and 2-ME reduction o...
journal_title:Immunology
pub_type: 杂志文章
doi:
更新日期:1987-05-01 00:00:00
abstract::The natural response of immunocompetent adult animals to antigen inhalation is the development of T-lymphocyte mediated tolerance, particularly in the IgE-antibody class (Holt & Sedgwick, 1987). It has been suggested that this process functions as a protective mechanism to limit sensitization to aeroallergens. In the ...
journal_title:Immunology
pub_type: 杂志文章
doi:
更新日期:1988-04-01 00:00:00
abstract::Various strains of the murine mycoplasma M. neurolyticum have been shown to induce extensive blast transformation of mouse lymphocytes, comparable in strength to mitogenicity exerted by these mycoplasma species on rat lymphocytes. The data summarized in this report demonstrate that this mitogenic effect is non-specifi...
journal_title:Immunology
pub_type: 杂志文章
doi:
更新日期:1978-04-01 00:00:00
abstract::Osteopontin (OPN) is a secreted phosphoprotein found in body fluids (e.g. plasma, urine, milk) and in mineralized tissues. Its expression is increased in many transformed cells and in normal cells exposed to various cytokines. When stimulated with the inflammatory mediators lipopolysaccharide and interferon-gamma, mou...
journal_title:Immunology
pub_type: 杂志文章
doi:10.1046/j.1365-2567.1996.d01-691.x
更新日期:1996-08-01 00:00:00
abstract::We have shown that human endothelial cells (EC) are protected against complement-mediated injury by the inducible expression of decay-accelerating factor (DAF). To understand further the importance of DAF regulation, we characterized EC DAF expression on murine EC in vitro and in vivo using a model of glomerulonephrit...
journal_title:Immunology
pub_type: 杂志文章
doi:10.1046/j.1365-2567.2003.01733.x
更新日期:2003-10-01 00:00:00
abstract::The effects of a variety of agents on the mouse antibody response to sheep red cells (SRC) and Escherichia coli lipopolysaccharide (LPS) were investigated. Agents formed two broad groups according to the time-dependence of their effects. Class I agents inhibited responses if given at any time over a broad period from ...
journal_title:Immunology
pub_type: 杂志文章
doi:
更新日期:1979-02-01 00:00:00
abstract::Human papillomaviruses (HPVs) are obligate epithelial pathogens and typically cause localized mucosal infections. We therefore hypothesized that T-cell responses to HPV antigens would be greater at sites of pathology than in the blood. Focusing on HPV-16 because of its association with cervical cancer, the magnitude o...
journal_title:Immunology
pub_type: 杂志文章
doi:10.1111/j.1365-2567.2006.02465.x
更新日期:2006-12-01 00:00:00
abstract::The cellular basis of the mechanism of immunological tolerance to human gamma-globulin (H gamma G) induced in foetal and neonatal mice by materno-foetal or materno-neonatal transfer after a single injection of tolerogen (deaggregated H gamma G) into the mothers was investigated using a cell transfer system and assays ...
journal_title:Immunology
pub_type: 杂志文章
doi:
更新日期:1979-05-01 00:00:00
abstract::Monoclonal antibodies were produced following immunization of mice with live infective larvae of Brugia malayi. One of these, 46.08.76, is an antibody that promotes adherence of mouse peritoneal macrophages and human peripheral blood leucocytes to the infective larvae of B. malayi and Wuchereria bancrofti, respectivel...
journal_title:Immunology
pub_type: 杂志文章
doi:
更新日期:1988-05-01 00:00:00
abstract::The interleukin-2 receptor alpha chain (IL-2R alpha) is a T-cell growth factor receptor and is known to be induced in helper T cells by infection with human T-cell leukaemia virus type-1 (HTLV-1). The Rex protein of HTLV-1 has been shown to stabilize IL-2R alpha mRNA. Although the 3' untranslated region of many RNA ha...
journal_title:Immunology
pub_type: 杂志文章
doi:
更新日期:1995-12-01 00:00:00
abstract::This paper uses B-lymphocyte cloning methods to quantify the effects of anti-mu chain antibody on immature and mature B cells. Nude mouse spleen lymphocytes were incubated with various concentrations of sheep anti-mouse mu chain antibody for times varying from 10 min to 24 h. They were then washed and plated in the ag...
journal_title:Immunology
pub_type: 杂志文章
doi:
更新日期:1979-05-01 00:00:00
abstract::The immunomodulatory molecule cyclosporine was found to cause an early acceleration of the capping of mouse B-cell membrane immunoglobulin. This was most marked when the capping process was slightly retarded by keeping the cells at 32 degrees. This is a sign that the drug can cause B-cell membrane alterations. At lowe...
journal_title:Immunology
pub_type: 杂志文章
doi:
更新日期:1986-04-01 00:00:00
abstract::Cellular adhesion molecules play a central role in leucocyte migration through peripheral blood and tissues. A crucial stage in these events in selectin-mediated adhesion involving E-selectin expressed on activated endothelium interacting with a range of carbohydrate ligands expressed by specific subpopulations of leu...
journal_title:Immunology
pub_type: 杂志文章
doi:
更新日期:1994-02-01 00:00:00
abstract::The purpose of this study was to investigate the effect of cyclophosphamide (CY) and 6-mercaptopurine (6-MP) on the production of the two IgG antibody subclasses in guinea-pigs. Following the intradermal application of dinitrophenylated bovine gamma globulin (DNP20-BGG) emulsified in Freund's incomplete adjuvant (FIA)...
journal_title:Immunology
pub_type: 杂志文章
doi:
更新日期:1981-09-01 00:00:00
abstract::Soluble low-affinity receptors for IgG are known to inhibit immune complex (IC)-mediated inflammation, and expression by leukocytes is elevated in several inflammatory diseases. Immunoglobulin M (IgM) rheumatoid factors (RF), anti-Fc autoantibodies, are found in autoimmune diseases, such as rheumatoid arthritis (RA), ...
journal_title:Immunology
pub_type: 杂志文章
doi:10.1046/j.1365-2567.2003.01652.x
更新日期:2003-06-01 00:00:00
abstract::Immunization of male rats and monkeys with gonadotropin-releasing hormone (GnRH) conjugated to a carrier results in a dramatic atrophy of the prostate. GnRH, linked to either diphtheria toxoid or tetanus toxoid as carrier, is now being evaluated for its use in the immunotherapy of hormone-dependent prostate enlargemen...
journal_title:Immunology
pub_type: 杂志文章
doi:
更新日期:1991-10-01 00:00:00
abstract::Myeloperoxidase (MPO) and eosinophil peroxidase (EPO) catalyse the formation of hypochlorite (OCl-) from chloride ions (OCl-) and hydrogen peroxide (H2O2). OCl- proved to be highly toxic for Trichinella spiralis newborn larvae (NBL) in in vitro assays. Using purified human MPO and EPO it was found that even at neutral...
journal_title:Immunology
pub_type: 杂志文章
doi:
更新日期:1984-03-01 00:00:00
abstract::Adoptive transfer of T-cells is a promising therapy for many cancers. To enhance tumour recognition by T-cells, chimeric antigen receptors (CARs) consisting of signalling domains fused to receptors that recognize tumour-associated antigens can be expressed in T-cells. While CAR T-cells have shown clinical success for ...
journal_title:Immunology
pub_type: 杂志文章
doi:10.1111/imm.13187
更新日期:2020-07-01 00:00:00