Abstract:
BACKGROUND:Parasite-specific IgE levels correlate with human resistance to reinfection with Schistosoma spp. after chemotherapy. Although the role of eosinophils in schistosomiasis has been the focus of a great deal of important research, the involvement of other Fcepsilon receptor-bearing cells, such as mast cells and basophils, has not been investigated in relation to human immunity to schistosomes. Chemotherapy with praziquantel (PZQ) kills schistosomes living in an in vivo blood environment rich in IgE, eosinophils and basophils. This releases parasite Ags that have the potential to cross-link cell-bound IgE. However, systemic hypersensitivity reactions are not induced by treatment. Here, we describe the effects of schistosomiasis, and its treatment, on human basophil function by following changes in total cellular histamine and in vitro histamine-release induced by schistosome Ags or anti-IgE, in blood samples from infected Ugandan fishermen, who are continuously exposed to S. mansoni infection, before and 1-day and 21-days after PZQ treatment. RESULTS:There was a significant increase in the total cellular histamine in blood samples at 1-day post-treatment, followed by a very significant further increase by 21-days post-treatment. In vitro histamine-release induced by S. mansoni egg (SEA) or worm (SWA) Ags or anti-IgE antibody, was significantly reduced 1-day post-treatment. The degree of this reduction correlated with pre-treatment infection intensity. Twenty-1-days post-treatment, SEA-induced histamine-release was still significantly lower than at pretreatment. Histamine-release was not correlated to plasma concentrations of total or parasite-specific IgE, nor to specific IgG4 plasma concentrations. CONCLUSION:The biology of human blood basophils is modulated by S. mansoni infection and praziquantel treatment. Infection intensity-dependent suppression of basophil histamine-release, histamine-dependent resistance to infection, and similarities with allergen desensitisation are discussed as possible explanations of these observations.
journal_name
BMC Immunoljournal_title
BMC immunologyauthors
Satti MZ,Cahen P,Skov PS,Joseph S,Jones FM,Fitzsimmons C,Hoffmann KF,Reimert C,Kariuki HC,Kazibwe F,Mwatha JK,Kimani G,Vennervald BJ,Ouma JH,Kabatereine NB,Dunne DWdoi
10.1186/1471-2172-5-6keywords:
subject
Has Abstractpub_date
2004-04-21 00:00:00pages
6issn
1471-2172pii
1471-2172-5-6journal_volume
5pub_type
杂志文章相关文献
BMC IMMUNOLOGY文献大全abstract:BACKGROUND:Gene transfer studies in primary T cells have suffered from the limitations of conventional viral transduction or transfection techniques. Replication-defective adenoviral vectors are an attractive alternative for gene delivery. However, naive lymphocytes are not readily susceptible to infection with adenovi...
journal_title:BMC immunology
pub_type: 杂志文章
doi:10.1186/1471-2172-3-4
更新日期:2002-05-02 00:00:00
abstract:BACKGROUND:Myeloid cells, especially mononuclear phagocytes, which include monocytes, macrophages and dendritic cells (DC), play vital roles in innate immunity, and in the initiation and maintenance of adaptive immunity. While T cell-associated activation pathways and cytokines have been identified and evaluated in inf...
journal_title:BMC immunology
pub_type: 杂志文章
doi:10.1186/s12865-019-0322-z
更新日期:2019-11-12 00:00:00
abstract:BACKGROUND:Cryopreservation of peripheral blood mononuclear cells has been used to preserve and standardize immunologic measurements for multicenter studies, however, effects of cryopreservation on cytokine responses are incompletely understood. In designing immunologic studies for a new multicenter birth cohort study ...
journal_title:BMC immunology
pub_type: 杂志文章,多中心研究
doi:10.1186/1471-2172-7-29
更新日期:2006-12-12 00:00:00
abstract:BACKGROUND:Pro-inflammatory cytokines can affect intracellular lipid metabolism. A variety of effects have been described for different cell types; hepatocyte lipid turnover pathways are inhibited during inflammation, whereas interleukin-1beta (IL-1beta) reduces intracellular cholesterol levels in fibroblasts. Levels o...
journal_title:BMC immunology
pub_type: 杂志文章
doi:10.1186/1471-2172-9-70
更新日期:2008-11-25 00:00:00
abstract:BACKGROUND:Interleukin 7 (IL-7) signals via the IL-7 receptor (IL-7R) and drives homeostatic T-cell proliferation in patients after allogeneic hematopoietic stem cell transplantation (aHSCT). PURPOSE:We performed a prospective study in adults (n = 33) and children (n = 29) undergoing aHSCT measuring plasma IL-7 and so...
journal_title:BMC immunology
pub_type: 杂志文章
doi:10.1186/1471-2172-15-25
更新日期:2014-06-19 00:00:00
abstract:BACKGROUND:Understanding immune mechanisms, particularly the role of innate immune markers during latent TB infection remains elusive. The main objective of this study was to evaluate mRNA gene expression patterns of toll-like receptors (TLRs) as correlates of immunity during latent TB infection and further infer their...
journal_title:BMC immunology
pub_type: 杂志文章
doi:10.1186/s12865-021-00400-4
更新日期:2021-01-28 00:00:00
abstract:BACKGROUND:While vaccination remains the most effective method to control hepatitis B virus (HBV) infection, 5-10% of recipients exhibit non-responsiveness to the HB vaccine. Immunological analysis of strong, weak or absent protective antibody responses to the HB vaccine should provide insights into the mechanisms that...
journal_title:BMC immunology
pub_type: 杂志文章
doi:10.1186/s12865-018-0263-y
更新日期:2018-07-28 00:00:00
abstract:BACKGROUND:The adaptive immune system maintains a diversity of T cells capable of recognizing a broad array of antigens. Each T cell's specificity for antigens is determined by its T cell receptors (TCRs), which together across all T cells form a repertoire of millions of unique receptors in each individual. Although m...
journal_title:BMC immunology
pub_type: 杂志文章
doi:10.1186/s12865-019-0300-5
更新日期:2019-06-21 00:00:00
abstract:BACKGROUND:Dysregulation of the immune system has been shown to occur during spaceflight, although the detailed nature of the phenomenon and the clinical risks for exploration class missions have yet to be established. Also, the growing clinical significance of immune system evaluation combined with epidemic infectious...
journal_title:BMC immunology
pub_type: 杂志文章
doi:10.1186/1471-2172-8-7
更新日期:2007-05-23 00:00:00
abstract:BACKGROUND:Tuberculous pleural effusion (TPE) is one of the most common forms of extrapulmonary tuberculosis. Because most studies of TPE focused on the pleural space, little information regarding lung parenchyma is available. We therefore aimed to investigate immune responses in the lung parenchyma of TPE patients wit...
journal_title:BMC immunology
pub_type: 杂志文章
doi:10.1186/1471-2172-13-45
更新日期:2012-08-13 00:00:00
abstract:BACKGROUND:Recent studies have shown that early growth response 2 (EGR2) is highly induced in activated T cells and regulates T cell functions. In normal C57BL/6 (B6) mice, deletion of EGR2 in lymphocytes results in the development of lupus-like systemic autoimmune disease, which implies indirectly an autoimmune protec...
journal_title:BMC immunology
pub_type: 杂志文章
doi:10.1186/s12865-020-00370-z
更新日期:2020-07-09 00:00:00
abstract:BACKGROUND:Toll-like receptor 2 (TLR2) plays a critical role in mediating inflammatory/immune responses against bacterial pathogens in lung. Streptococcus pneumoniae (S. pneumoniae) and nontypeable Haemophilus influenzae (NTHi) were previously reported to synergize with each other to induce inflammatory responses. Desp...
journal_title:BMC immunology
pub_type: 杂志文章
doi:10.1186/1471-2172-9-40
更新日期:2008-07-29 00:00:00
abstract:BACKGROUND:Human intestinal epithelial cells (IECs) secrete the chemokine CCL20 in response to infection by various enteropathogenic bacteria or exposure to bacterial flagellin. CCL20 recruits immature dendritic cells and lymphocytes to target sites. Here we investigated IEC responses to various pathogenic and commensa...
journal_title:BMC immunology
pub_type: 杂志文章
doi:10.1186/1471-2172-10-54
更新日期:2009-10-08 00:00:00
abstract:BACKGROUND:Some chemicals, including some phthalate plasticizers, have been shown to have an adjuvant effect in mice. However, an adjuvant effect, defined as an inherent ability to stimulate the humoral immune response, was only observed after exposure to a limited number of the phthalates. An adjuvant effect may be du...
journal_title:BMC immunology
pub_type: 杂志文章
doi:10.1186/1471-2172-9-61
更新日期:2008-10-31 00:00:00
abstract:BACKGROUND:Neutrophils are critical in the defense against potentially harmful microorganisms, but their excessive and inappropriate activation can contribute significantly to tissue damage and a worsening pathology. Through the release of endocrine factors submandibular glands contribute to achieving a balance in neut...
journal_title:BMC immunology
pub_type: 杂志文章
doi:10.1186/1471-2172-4-3
更新日期:2003-03-04 00:00:00
abstract:BACKGROUND:It has been recognized that phospholipase A2 (PLA2) is a crucial component of snake venom, which contributes greatly to snake venom induced inflammation in man. However, the mechanisms through which N49 PLA2 provoke inflammation remain unclear. Recently, a N49 PLA2, TM-N49 from Protobothrops mucrosquamatus c...
journal_title:BMC immunology
pub_type: 杂志文章
doi:10.1186/1471-2172-10-21
更新日期:2009-04-28 00:00:00
abstract:BACKGROUND:Extracellular vesicles (EVs) are nano-sized particles secreted by most cells. EVs carry nucleic acids that hold promise as potential biomarkers in various diseases. Human immunodeficiency virus type 1 (HIV) infects CD4+ T cells and induces immune dysfunction, inflammation, and EV secretion, but little is kno...
journal_title:BMC immunology
pub_type: 杂志文章
doi:10.1186/s12865-020-00386-5
更新日期:2020-11-11 00:00:00
abstract:BACKGROUND:An ideal tumor vaccine should activate both effector and memory immune response against tumor-specific antigens. Beside the CD8+ T cells that play a central role in the generation of a protective immune response and of long-term memory, dendritic cells (DCs) are important for the induction, coordination and ...
journal_title:BMC immunology
pub_type: 杂志文章
doi:10.1186/1471-2172-11-45
更新日期:2010-09-13 00:00:00
abstract:BACKGROUND:Functioning of the immune system requires the coordinated expression and action of many genes and proteins. With the emergence of high-throughput technologies, a great amount of molecular data is available for the genes and proteins of the immune system. However, these data are scattered into several databas...
journal_title:BMC immunology
pub_type: 杂志文章
doi:10.1186/1471-2172-10-3
更新日期:2009-01-09 00:00:00
abstract:BACKGROUND:The new JAK3 inhibitor, CP690,550, has shown efficacy in the treatment of rheumatoid arthritis. The present study was undertaken to assess the effects of CP690,550 on cytokine production and cellular signaling in human CD4(+) T cells. RESULTS:CD4(+) T cells produced IL-2, IL-4, IL-17, IL-22 and IFN-γ in fol...
journal_title:BMC immunology
pub_type: 杂志文章
doi:10.1186/1471-2172-12-51
更新日期:2011-08-31 00:00:00
abstract::The immunological roles of B-cells are being revealed as increasingly complex by functions that are largely beyond their commitment to differentiate into plasma cells and produce antibodies, the key molecular protagonists of innate immunity, and also by their compartmentalisation, a more recently acknowledged property...
journal_title:BMC immunology
pub_type: 杂志文章,评审
doi:10.1186/1471-2172-13-63
更新日期:2012-11-29 00:00:00
abstract:BACKGROUND:Although plasmid DNA encoding an antigen from pathogens or tumor cells has been widely studied as vaccine, the use of plasmid vector (without insert) as therapeutic agent requires further investigation. RESULTS:Here, we showed that plasmid DNA (pcDNA3) at low doses inhibits the production of IL-6 and TNF-α ...
journal_title:BMC immunology
pub_type: 杂志文章
doi:10.1186/1471-2172-13-59
更新日期:2012-11-08 00:00:00
abstract:BACKGROUND:The initiation of highly active antiretroviral therapy (HAART) plays a significant role in the clinical management of HIV infected people by preventing morbidity and mortality. This benefit becomes, the most terrible when treatment failure develops. Thus, this research aims to assess the prevalence and assoc...
journal_title:BMC immunology
pub_type: 杂志文章
doi:10.1186/s12865-018-0278-4
更新日期:2018-12-17 00:00:00
abstract:BACKGROUND:Besides their prominent role in the elimination of infected or malignantly transformed cells, natural killer (NK) cells serve as modulators of adaptive immune responses. Enhancing bidirectional crosstalk between NK cells and dendritic cells (DC) is considered a promising tool to potentiate cancer vaccines. W...
journal_title:BMC immunology
pub_type: 杂志文章
doi:10.1186/s12865-018-0247-y
更新日期:2018-02-13 00:00:00
abstract:BACKGROUND:The CXCR3 receptor and its three interferon-inducible ligands (CXCL9, CXCL10 and CXCL11) have been implicated as playing a central role in directing a Th1 inflammatory response. Recent studies strongly support that the CXCR3 receptor is a very attractive therapeutic target for treating autoimmune diseases, s...
journal_title:BMC immunology
pub_type: 杂志文章
doi:10.1186/1471-2172-13-2
更新日期:2012-01-10 00:00:00
abstract:BACKGROUND:We have recently demonstrated that all-trans-retinoic acid (ATRA) and 9-cis-retinoic acid (9-cis RA) promote IL-4, IL-5 and IL-13 synthesis, while decreasing IFN-gamma and TNF-alpha expression by activated human T cells and reduces the synthesis of IL-12p70 from accessory cells. Here, we have demonstrated th...
journal_title:BMC immunology
pub_type: 杂志文章
doi:10.1186/1471-2172-9-16
更新日期:2008-04-16 00:00:00
abstract:BACKGROUND:The gram-negative bacterium Bordetella pertussis is an important causative agent of pertussis, an infectious disease of the respiratory tract. After introduction of whole-cell vaccines (wP) in the 1950's, pertussis incidence has decreased significantly. Because wP were found to be reactogenic, in most develo...
journal_title:BMC immunology
pub_type: 杂志文章
doi:10.1186/1471-2172-9-21
更新日期:2008-05-22 00:00:00
abstract:BACKGROUND:Expressed in embryonic development, matrix metalloprotein-9 (MMP-9) is absent in most of developed adult tissues, but recurs in inflammation during tissue injury, wound healing, tumor formation and metastasis. Expression of MMP-9 is tightly controlled by extracellular cues including pro-inflammatory cytokine...
journal_title:BMC immunology
pub_type: 杂志文章
doi:10.1186/1471-2172-10-15
更新日期:2009-03-19 00:00:00
abstract:BACKGROUND:Streptococcus sanguinis (S.sanguinis), a predominant bacterium in the human oral cavity, has been widely associated with the development of infective endocarditis. Platelets play both a haemostatic function and can influence both innate and adaptive immune responses. Previous studies have shown that S.sangui...
journal_title:BMC immunology
pub_type: 杂志文章
doi:10.1186/1471-2172-15-15
更新日期:2014-04-22 00:00:00
abstract:AIM:Brucellar spondylitis (BS) is one of the most serious complications of brucellosis. CXCR3 is closely related to the severity of disease infection. This research aimed to study the degree of BS inflammatory damage through analyzing the expression levels of CXCR3 and its ligands (CXCL9 and CXCL10) in patients with BS...
journal_title:BMC immunology
pub_type: 杂志文章
doi:10.1186/s12865-020-00390-9
更新日期:2020-11-18 00:00:00