Abstract:
BACKGROUND:The association of pollinosis with allergy to plant foods occurs in up to 70% of tree pollen-allergic patients. In recent years, some of the relevant cross-reacting proteins have been characterized at the molecular and immunological level. Api g 1 has been identified as the celery homologue of the major birch pollen allergen, Bet v 1. Although a number of Bet v 1 isoforms have been characterized from birch pollen, little is known about isoforms of food allergens and their allergenic features. METHODS:Api g 1.0201, an isoform of Api g 1, was isolated from a cDNA library, cloned and sequenced. The cDNA was expressed in Escherichia coli and the purified recombinant protein was tested in immunoblots. RESULTS:Api g 1.0201 displays 72% sequence similarity to the previously identified Api g 1.0101 and consists of 159 amino acid residues. The sequence of Api g 1.0201 has five additional amino acid residues at the carboxy-terminus as compared to Api g 1.0101. Purified recombinant Api g 1.0201 is recognized by IgE from the sera of celery-allergic patients, as well as by the murine monoclonal anti-Bet v 1 antibody. In general, this isoform displays a weaker IgE-binding capacity than Api g 1.0101, as concluded from immunoblotting experiments. Results from inhibition assays revealed that IgE-binding to Api g 1.0201 is only slightly reduced by preincubation with either purified recombinant Api g 1.0101 or purified recombinant Bet v 1a. Total inhibition was only achieved when using purified natural Bet v 1. CONCLUSIONS:At present, little is known about the IgE-binding capacity of isoforms of Bet v 1 homologues of food allergens. Identification and characterization of such isoforms may help to contribute to a better understanding of food allergy and the observed cross-reactivity to pollen allergy.
journal_name
Int Arch Allergy Immunoljournal_title
International archives of allergy and immunologyauthors
Hoffmann-Sommergruber K,Ferris R,Pec M,Radauer C,O'Riordain G,Laimer Da Camara Machado M,Scheiner O,Breiteneder Hdoi
10.1159/000024367keywords:
subject
Has Abstractpub_date
2000-06-01 00:00:00pages
115-23issue
2eissn
1018-2438issn
1423-0097pii
24367journal_volume
122pub_type
杂志文章abstract::Bronchial asthma, characterized by eosinophilic inflammation in airways, may involve Th2-type cytokines such as interleukin-5 (IL-5). IL-12, a newly established cytokine, induces IFN-gamma production, which may have a regulatory effect on the production of Th2-type cytokines. We examined the effects of IL-12 on the pr...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000023834
更新日期:1998-01-01 00:00:00
abstract:BACKGROUND:Cow's milk (CM) allergy is the second most common food allergy developed during infancy in Japan. To identify predictors of persistent CM allergy, we investigated the tolerance acquisition rate based on an oral food challenge in children under 6 years of age, diagnosed with immediate-type CM allergy. METHOD...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000486311
更新日期:2018-01-01 00:00:00
abstract:BACKGROUND:15-Deoxy-Delta(12,14)-prostaglandin J2 (15d-PGJ2), a major prostanoid metabolized from prostaglandin D2 (PGD2), plays an important role in various biological processes including inflammatory responses. 15d-PGJ2 exerts its effects through two major receptors, chemoattractant receptor- homologous molecule expr...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000211377
更新日期:2009-01-01 00:00:00
abstract:BACKGROUND:Helicobacter pylori, the main cause of gastritis and peptic ulcer, has been associated with idiopathic chronic urticaria (ICU), an immunological skin disorder of unknown origin. Eosinophilic cationic protein (ECP) is a cytotoxic molecule secreted by the activated eosinophils involved in the pathogenesis of I...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000053798
更新日期:2001-05-01 00:00:00
abstract:BACKGROUND:It has been reported that protein tyrosine phosphorylation is essential for cytokine production in mouse Th1 cells but not in Th2 cells. However, little is known about the difference of signal transduction between human antigen-specific Th1 and Th2 cell clones. METHODS:Purified protein derivative-specific T...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000024028
更新日期:1999-01-01 00:00:00
abstract::Volumetric air sampling was performed at Corpus Christi, Tex., September 1987 to August 1989. Grass aeropollen during all of 1988 accounted for 15.3% of total pollen captured during two major peaks, one in May and another during September and October. The remaining grass pollen, about one-quarter of the total, was fou...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000236168
更新日期:1992-01-01 00:00:00
abstract:BACKGROUND:Mouse models have been established mirroring key features of human bronchial asthma including airway hyperresponsiveness (AHR). Acute airway obstruction in response to an allergen challenge, however, remains to be demonstrated in these models. OBJECTIVE:A mouse model of allergic lung inflammation was employ...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000024298
更新日期:2000-01-01 00:00:00
abstract::The antigenic and allergenic characteristics of three bovine epithelial extracts, dander, skin scrapings and whole skin, were compared using IgE-ELISA inhibition and SDS-PAGE with immunoblotting. Cow dander extract was shown to contain more allergenic activity than skin scrapings or whole skin extracts which were need...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000236343
更新日期:1992-01-01 00:00:00
abstract:BACKGROUND:Respiratory syncytial virus (RSV) infection in infants with Th2 predisposition is thought to increase the risk of allergic sensitization, recurrent wheezing, and bronchial asthma during childhood. We attempted to clarify the molecular mechanisms by which Th1/Th2 predisposition in the host alters RSV infectio...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000321105
更新日期:2011-01-01 00:00:00
abstract::Aerosolized monoclonal antibodies (mAbs) specific for T-cell receptors (TCR) were used to manipulate T-cell function in airways of ovalbumin (OVA)-sensitized and -challenged mice with airway hyperresponsiveness (AHR). The inhaled mAbs were found to be effective at low doses, had little or no systemic effect and specif...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000077533
更新日期:2004-05-01 00:00:00
abstract:BACKGROUND:The production of house dust mite (HDM) allergen products for allergy immunotherapy has traditionally been based on purified mite bodies or whole-mite culture, which are quite different source materials with a limited possibility for adjusting the chemical composition. The SQ HDM SLIT-tablet is a fast-dissol...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000444016
更新日期:2016-01-01 00:00:00
abstract::Many different mediators have been implicated in allergic responses and allergic diseases of the respiratory tract. The influence of several allergic inflammatory mediators on the ciliary activity has been well studied. However, ciliary responsiveness to platelet-activating factor (PAF) is yet to be established conclu...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000236681
更新日期:1994-07-01 00:00:00
abstract:BACKGROUND:T cells are key regulators of immunologic disease parameters. However, their contribution to the process of tissue remodeling is ill defined. In the present study, we investigated gene expression of allergy-characteristic, IL-4-rich T cell cDNAs to monitor expression of genes that might participate in the pa...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000072139
更新日期:2003-08-01 00:00:00
abstract:BACKGROUND:Diagnosis and immunotherapy of house-dust mite (HDM) allergy is still based on natural allergen extracts. The aim of this study was to analyze commercially available Dermatophagoides pteronyssinus extracts from different manufacturers regarding allergen composition and content and whether variations may affe...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000337654
更新日期:2012-01-01 00:00:00
abstract::It has been well documented that environmental factors such as antigen-presenting cells and related cytokines can affect the development of T-helper cells. The purpose of this study was to investigate the role of different antigen-presenting cells on T-cell development. Ovalbumin (OVA) combined with complete Freud's a...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000237394
更新日期:1996-12-01 00:00:00
abstract:BACKGROUND:Cat allergens are ubiquitous because the clothing of cat owners constitutes an important source of distribution of Fel d 1 in cat-free environments. Since Fel d 1 can adhere to a variety of surfaces, we sought to verify if human hair belonging to individuals with or without a cat at home might represent a re...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000085793
更新日期:2005-06-01 00:00:00
abstract:BACKGROUND:Interleukin (IL)-33, a new member of the IL-1 cytokine family, has been recognized as a key cytokine that enhances T helper 2-balanced immune regulation through its receptor ST2; however, the function and relationship of the IL-33 and ST2 pathways in bronchial asthma are still unclear. We investigated the ce...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000327259
更新日期:2011-01-01 00:00:00
abstract::Patients with atopic dermatitis (AD) are frequently colonized with Staphylococcus aureus strains secreting exotoxins such as the staphylococcal enterotoxin B (SEB) and A (SEA). Nonetheless the role of SEB and SEA in AD is yet unknown. We analyzed the responsiveness of peripheral blood mononuclear cells (PBMCs) and iso...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000236832
更新日期:1995-02-01 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::CD40 is a surface antigen expressed on B cells. The CD40 ligand (CD40L) is expressed on activated T cells. Interaction between CD40 and CD40L is critical for proliferation and isotype switching in the context of a response to a T-cell-dependent antigen. Patients with X-linked hyper-IgM syndrome (HIGMX-1) in their CD40...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章,评审
doi:10.1159/000236923
更新日期:1995-05-01 00:00:00
abstract::Ovalbumin (OVA)-pullulan conjugates were made using four different conjugation methods and eight different molecular weights of pullulan ranging from 4,200 to 600,000. Pretreatment of mice by the administration of conjugates made by using cyanulic chloride or cyanogen bromide and pullulan of molecular weight 40,000 or...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000236536
更新日期:1993-01-01 00:00:00
abstract::Transforming growth factor-beta 1 (TGF-beta(1)) is a key regulator of immune tolerance. TGF-beta(1) controls T lymphocyte activation and is involved in the immunosuppressive function and generation of regulatory T lymphocytes. Connective tissue growth factor (CTGF) has an essential role in the formation of connective ...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000137284
更新日期:2008-01-01 00:00:00
abstract::In the present study, we investigated the role of resident peritoneal cells as well as the mediators involved in the eosinophil migration induced by large volumes of physiological saline. Two consecutive intraperitoneal injections of saline given 48 h apart, induced a selective recruitment of eosinophils into the cavi...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000236687
更新日期:1994-08-01 00:00:00
abstract:BACKGROUND:Previous studies suggest that administration of probiotics in vitro can stimulate regulatory and Th1 immune responses. We studied both the in vitro immunological effects of probiotics and the ex vivo immunological effects after oral administration of probiotics in children with food allergy, a Th2-mediated d...
journal_title:International archives of allergy and immunology
pub_type: 临床试验,杂志文章
doi:10.1159/000099467
更新日期:2007-01-01 00:00:00
abstract::IgE responsiveness to Dermatophagoides farinae body extract was compared by immunoblotting among four groups of mite-sensitive asthmatic children: group I aged 0-3, group II aged 4-7, group III aged 8-11 and group IV aged 12-15. In the group I subjects, the 15-kD component was bound by 88% of sera and strongly by 56% ...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000236605
更新日期:1994-01-01 00:00:00
abstract::A prospective study was conducted on 73 allergic patients and 14 normal volunteers in order to measure the IgE concentration in both serum and saliva, and analyze salivary IgE according to the characteristics of the allergic disease. IgE was more frequently detected in saliva from allergic patients than from normal su...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000236715
更新日期:1994-05-01 00:00:00
abstract:BACKGROUND:Dietary intake of wheat causes hypersensitivity reactions in patients suffering from IgE-mediated food allergy and coeliac disease. AIM:To study the expression of IgE- and IgA-reactive antigens during wheat seed maturation and in different wheat cultivars. METHODS:Summer wheat was grown in a glasshouse and...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000199713
更新日期:2009-01-01 00:00:00
abstract:BACKGROUND:Hypersensitivity to contrast media (CMs) may be common and serious. AIM:To evaluate the prevalence of CM hypersensitivity, risk factors associated with it and the role of skin testing in its diagnosis. METHODS:A structured questionnaire was administered to patients who underwent computed tomography during ...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000320760
更新日期:2011-01-01 00:00:00
abstract::Factors are discussed as potential diagnostic parameters of atopic disorders. The amounts of sCD23 in sera from newborn children (n = 4,329) were determined by radioimmunoassay with monoclonal antibodies specific for CD23. The sCD23 levels ranged between 0 and 81.5 ng/ml of CD23-specific mAb. Furthermore, the sera of ...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000236346
更新日期:1992-01-01 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