Abstract:
BACKGROUND:A role of bacterial superantigens in several chronic inflammatory diseases has previously been proposed. Many of these diseases are associated with an imbalance of the T helper cell subsets and their cytokine production. METHODS:Peripheral blood mononuclear cells from healthy donors were incubated with various concentrations of staphylococcal enterotoxin B (SEB) with or without IL-4 or IFN-gamma. After different time points cell activation, proliferation, Fas expression, cytokine release and cell death via apoptosis were detected. RESULTS:SEB treatment resulted in sequential T cell activation, proliferation, Fas expression, cytokine release, subsequently followed by cell death via apoptosis in a dose- and time-dependent manner. This biphasic effect occurred preferentially in SEB-responsive cells represented by the expression of Vbeta3 and Vbeta12 on T cells. A strong relationship between T cell activation and apoptosis was observed. The amplitude between these events increased with the dose of SEB. The highest rate of apoptotic T cells was observed at a dose of 1,000 ng/ml SEB. Addition of IFN-gamma to SEB-treated cells significantly reduced the rate of apoptotic cells, whereas IL-4 prevented apoptosis only in SEB-untreated cells. CONCLUSION:These results support the concept that the dose of superantigen exposure determines the rate of T cell proliferation and subsequent cell death. This T cell immune response is modulated by the presence and the type of cytokines.
journal_name
Int Arch Allergy Immunoljournal_title
International archives of allergy and immunologyauthors
Weber AK,Wahn U,Renz Hdoi
10.1159/000024320keywords:
subject
Has Abstractpub_date
2000-03-01 00:00:00pages
215-23issue
3eissn
1018-2438issn
1423-0097pii
24320journal_volume
121pub_type
杂志文章abstract:BACKGROUND:Japanese cedar pollinosis (JCPsis) is an immunoglobulin E-mediated type I allergy caused by exposure to Japanese cedar pollen (JCP). Blood thymus and activation-regulated chemokine (TARC) levels are well known as an objective parameter for disease severity for several allergic disorders. The present study ai...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000103223
更新日期:2007-01-01 00:00:00
abstract::Mast cells are recognized not only as the major effector cells of type I hypersensitivity reactions but also as an important player of innate immune response against bacterial infection. Type I IFNs are also involved in the response against bacterial infection. However, the role of type I IFNs and their associated Jan...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000077789
更新日期:2004-06-01 00:00:00
abstract:BACKGROUND:Dendritic cells (DC) play a decisive role in the induction of allergen-induced Th1 and Th2 responses. Since the induction of allergen-specific Th1 responses has shown to inhibit allergen-induced Th2-type inflammation, in this study we investigated whether manipulated myeloid-derived DC pulsed with the specif...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000086334
更新日期:2005-07-01 00:00:00
abstract::Partially purified commercial phospholipase D (PLD) was fractionated by dye-ligand affinity chromatography and nondenaturing polyacrylamide gel electrophoresis (PAGE). Active material migrated as three bands on SDS-PAGE. The two higher-abundance species were shown to have identical N-terminal sequences, while the thir...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000236934
更新日期:1995-05-01 00:00:00
abstract:BACKGROUND:Severe refractory atopic dermatitis (AD) is a chronic, debilitating condition that is associated with elevated serum immunoglobulin E (IgE) levels. Thymic stromal lymphopoietin (TSLP), thymus and activation-regulated chemokine (TARC) and OX40 ligand (OX40L) are important immunologic factors involved in the p...
journal_title:International archives of allergy and immunology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1159/000350486
更新日期:2013-01-01 00:00:00
abstract::Kimura disease is a rare disorder of unknown etiology, characterized by the presence of benign subcutaneous granuloma, marked peripheral blood eosinophilia and elevation of the immunglobulin E (IgE) serum level. Here, we present a case of a 12-year-old boy with Kimura disease who had a history of repeated severe influ...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000337777
更新日期:2012-01-01 00:00:00
abstract::In murines, interleukins (IL) 3, 4, 9, and 10, nerve growth factor, and stem cell factor induce or promote growth and differentiation of mast cells (MC). Increased stimulation and synergy was observed when combinations of cytokines were used. In man, no growth factor for human MCs had been identified until recently, w...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000236767
更新日期:1994-11-01 00:00:00
abstract::We aimed to evaluate the therapeutic effect of nebulized beclomethasone dipropionate (nBDP) on both allergic asthma and rhinitis. In a randomized, double-blind, placebo-controlled study, 40 children (mean age 10.7 ± 2.1 years) with allergic asthma and rhinitis received either nBDP (daily dose of 800 µg, administered t...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章,随机对照试验
doi:10.1159/000343137
更新日期:2013-01-01 00:00:00
abstract::Antibodies to specific autoantigens are serological hallmarks of systemic autoimmune diseases. These autoantibodies are thought to represent a consequence of immune dysregulation in these conditions, and, in part, have been shown to be involved in their pathologic consequences. However, the mechanisms that lead to the...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章,评审
doi:10.1159/000024422
更新日期:2000-09-01 00:00:00
abstract:BACKGROUND:IgE-mediated hypersensitivity to latex has been recognized as an increasing health problem with far-reaching consequences for patients, regarding both their occupational situation and safety in medical care. Therefore, a correct diagnosis of natural rubber latex (NRL) allergy is essential. The purpose of the...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000049518
更新日期:2001-11-01 00:00:00
abstract:BACKGROUND:Allergic conjunctivitis is characterized by itchy, watery and swollen eyes which occur in response to exposure to seasonal or environmental allergens. The early phase reaction of allergic conjunctivitis is primarily mediated by mast cell degranulation while the late phase reaction is driven by Th2 cells and ...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000328769
更新日期:2012-01-01 00:00:00
abstract::Oral immunotherapy (OIT) is a significant focus of treatment of food allergy. OIT appears to be effective in inducing desensitization, however, patients receiving OIT frequently developmild/moderate symptoms during the therapy. It has not been clearly established whether the clinical tolerance induced by OIT resembles...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章,评审
doi:10.1159/000361025
更新日期:2014-01-01 00:00:00
abstract::Platelet-activating factor (PAF)-induced augmentation of spontaneous differentiation into eosinophil-lineage cells from hematopoietic precursor cells was found among human umbilical cord blood mononuclear cells (CBMCs). This ability of PAF to augment eosinophil production was significantly (p < 0.01) inhibited by the ...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000236586
更新日期:1993-01-01 00:00:00
abstract:BACKGROUND:Systemic anaphylaxis is the most severe form of immediate hypersensitivity reaction. The activation of the complement system occurs during anaphylactic shock. The purpose of this study was to determine in a mouse model whether the lectin pathway of complement activation is involved in anaphylaxis. METHODS:T...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000094177
更新日期:2006-01-01 00:00:00
abstract:BACKGROUND:Air pollution is frequently proposed as a potential cause of the increased incidence of allergy in industrialised countries. Our objective was to investigate the impact of the major gaseous air pollutants on grass pollen allergens. METHODS:Timothy grass pollen was exposed to ozone (O(3)), nitrogen dioxide (...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000099079
更新日期:2007-01-01 00:00:00
abstract:BACKGROUND:It is important to understand that allergic rhinitis, whether seasonal or perennial, may be difficult to distinguish clinically from the nonallergic forms of rhinitis. OBJECTIVE:This study aimed to investigate the presence of local allergic rhinitis (LAR) in children who have allergic rhinitis symptoms in t...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000447635
更新日期:2016-01-01 00:00:00
abstract:BACKGROUND:Airway closure is frequently observed in human asthma. However, limited information exists on the factors that cause this condition. In this study, an allergic cynomolgus monkey model was used to characterize the condition of airway closure and assess the contribution of histamine H1 receptors to this respon...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000084611
更新日期:2005-05-01 00:00:00
abstract:BACKGROUND:In naive rodents, repeated exposure to aerosolized antigen induces suppression of the Th2 response to the antigen. We hypothesized that more prolonged exposure of established asthma model to antigen aerosols may downregulate asthmatic phenotype. METHODS:After establishing an ovalbumin (OVA)-induced asthma m...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000049503
更新日期:2001-10-01 00:00:00
abstract::Antibody response after immunization with surface-coupled ovalbumin (OVA) of liposomes was investigated in mice. OVA was coupled to the surface of liposome via amino groups using glutaraldehyde. OVA-liposome conjugate induced a significant anti-OVA IgG antibody production in mice. However, no IgE antibody production s...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000237241
更新日期:1996-03-01 00:00:00
abstract:BACKGROUND:Recently, the relationship between antigen contact via skin (skin sensitization) and the development of food allergies has gained increasing attention. However, few studies have examined the effects of skin sensitization on healthy skin. OBJECTIVE:To examine the effect of sensitization in healthy skin on Ig...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000511239
更新日期:2020-11-11 00:00:00
abstract:BACKGROUND:Depression and smoking contribute to the prognosis of autoimmune rheumatoid arthritis (RA). Advanced glycation end products (AGEs) are also detected in RA patients. This study correlates RA in patients with various levels of depression and a history of smoking through the detection of antibodies against AGEs...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000489896
更新日期:2018-01-01 00:00:00
abstract:BACKGROUND:Lactobacillus casei is a nonpathogenic gram-positive bacterium widely used in dairy products and has been shown to enhance the cellular immunity of the host. METHODS:To examine the inhibitory effect of L. casei on IgE production, splenocytes obtained from ovalbumin (OVA)-primed BALB/c mice were restimulated...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000069458
更新日期:1998-04-01 00:00:00
abstract::We studied the binding activities of IgE, IgG and IgA antibodies in patients with allergy to hen's egg white against two different ovalbumin (OVA) preparations, which were physically or chemically denatured OVA and enzyme-digested OVA fragments. The binding activities of IgE antibodies to these OVA preparations with t...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000236602
更新日期:1994-01-01 00:00:00
abstract::The causal association between cow's milk allergy (CMA) and constipation is not well established. Some guidelines describe constipation as a possible symptom of CMA, while others do not mention it. We conducted a literature review and found 10 prospective clinical trials. In all of them, an oral food challenge was per...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章,评审
doi:10.1159/000362365
更新日期:2014-01-01 00:00:00
abstract:BACKGROUND:Studies have shown that serum total immunoglobulin E (IgE) levels are higher in asthmatics. However, the role of the serum total IgE level, independently from atopy, in adult asthma is not understood. We studied the associations between serum total IgE, the number of sensitizations and the sum of specific Ig...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000342464
更新日期:2013-01-01 00:00:00
abstract::We isolated a major wheat flour allergen with a molecular weight of 15-kD. The 15-kD allergen was purified from an extract of wheat flour by ammonium sulfate precipitation followed by gel filtration. Using the immunoblot technique, IgE, specifically directed towards the single isolated allergen, was detectable in 50% ...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000236726
更新日期:1994-01-01 00:00:00
abstract:INTRODUCTION:Hereditary angioedema (HAE) with C1 inhibitor (C1-INH) deficiency is a rare autosomal dominant disease. Although the first symptoms can appear in childhood, the diagnosis's delay has a strong impact on the patient's quality of life. We analyzed clinical and laboratory characteristics and the drug therapy o...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000512944
更新日期:2021-01-28 00:00:00
abstract:BACKGROUND:The role of food allergens in the induction of allergic reactions in the airways is not completely understood. The aim of the present study was to evaluate fluorocytometric assays of the peripheral blood during food challenge tests in children with asthma and food allergy. PATIENTS AND METHODS:22 children w...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000226239
更新日期:2009-01-01 00:00:00
abstract:BACKGROUND:It has been shown that antigen presentation by resting B cells can induce tolerance to intravenously administered protein antigens, but the role of resting B cells in the induction of oral tolerance is unclear. METHODS:Mice continuously treated since birth with rabbit anti-mouse IgM serum for 5 weeks were d...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000024394
更新日期:2000-07-01 00:00:00
abstract:BACKGROUND:Protease-activated receptors (PARs) are a unique class of G-protein-coupled receptors, which are activated by proteolytic cleavage of the amino terminus of the receptor itself. Although expression of the PAR1, which is typically activated by thrombin, on human eosinophils has been demonstrated, no effect of ...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000080037
更新日期:2004-09-01 00:00:00