Abstract:
:Enterotoxin produced by enterotoxigenic Bacteroides fragilis (BFT) has been associated with mucosal inflammation and diarrhoeal diseases. In this study, the anti-inflammatory molecular mechanism of 5,7-dihydroxy-3,4,6-trimethoxyflavone (eupatilin) was characterized in an HT-29 intestinal epithelial cell line stimulated with BFT. Pre-treatment of HT-29 cells with eupatilin decreased the production significantly of both interleukin (IL)-8 and prostaglandin E(2) induced by BFT in a dose-dependent manner. BFT-activated nuclear factor-kappaB (NF-kappaB) signals in HT-29 cells and pretreatment with eupatilin suppressed NF-kappaB activation that resulted in the significant inhibition of IL-8 and cyclo-oxygenase-2 expression. BFT-induced phosphorylation of both I kappaB alpha and I kappaB kinase (IKK) signals was prevented in eupatilin-pretreated HT-29 cells. Transfection of siRNA for IKK-alpha and IKK-beta decreased the production of IL-8 and prostaglandin E(2); however, the transfection of IKK-beta siRNA showed a more significant reduction of BFT-induced I kappaB alpha phosphorylation compared with that of IKK-alpha siRNA. In addition, herbimycin A, a specific inhibitor of heat shock protein 90 (Hsp90), decreased the BFT-induced activation of IKK and NF-kappaB, suggesting that Hsp90 is associated with a pathway of IKK-NF-kappaB-IL-8/cyclo-oxygenase-2 gene signalling. Furthermore, eupatilin dissociated the complex between Hsp90 and IKK-gamma in BFT-stimulated HT-29 cells. These results suggest that eupatilin can suppress the NF-kappaB signalling pathway by targeting the Hsp90-IKK-gamma complex in intestinal epithelial cells and may attenuate BFT-induced inflammatory responses.
journal_name
Clin Exp Immunoljournal_title
Clinical and experimental immunologyauthors
Kim JM,Lee DH,Kim JS,Lee JY,Park HG,Kim YJ,Oh YK,Jung HC,Kim SIdoi
10.1111/j.1365-2249.2008.03849.xsubject
Has Abstractpub_date
2009-03-01 00:00:00pages
541-51issue
3eissn
0009-9104issn
1365-2249pii
CEI3849journal_volume
155pub_type
杂志文章abstract::T helper (Th) responses are mediated in part by immunoregulatory cytokines and the signals delivered by the costimulatory CD28-B7 pathway. In this study, we have investigated the relationship between the regulation of B7 isoform expression on antigen-presenting cells from HIV+ individuals and the production of Th cyto...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:10.1046/j.1365-2249.1999.00937.x
更新日期:1999-07-01 00:00:00
abstract::We examined the effect of IL-6 on the development of autoimmune diseases (primary biliary cirrhosis, Sjögren's syndrome) employing murine graft-versus-host reaction (GVHR) model with MHC class II disparity. For this purpose, we used IL-6 transgenic (B6.6) mice in which a high level of IL-6 was detected. C57Bl/6 (B6) s...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:10.1111/j.1365-2249.1994.tb07030.x
更新日期:1994-03-01 00:00:00
abstract::Kawasaki disease (KD) is an immune-mediated vasculitis with symptoms that mimic febrile illness; the immune origin has been suggested but never proved. First, cell chip technology was used to screen immune targets cells. With the indirect immunofluorescence assay we found that the HeLa cell chip could be recognized by...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:10.1111/cei.13204
更新日期:2018-12-01 00:00:00
abstract::Autoimmunity may contribute to the pathogenesis of chronic obstructive pulmonary disease (COPD). Studies have identified disease-specific autoantibodies (DSAAbs) in COPD patients, but natural autoantibodies (NAAbs) may also play a role. Previous studies have concentrated on circulating autoantibodies, but lung-associa...
journal_title:Clinical and experimental immunology
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1111/cei.12565
更新日期:2015-04-01 00:00:00
abstract::After 3-4 weeks culture of human bone marrow cells in medium supplemented with IL-3, macrophage- (M-CSF), and granulocyte-macrophage colony-stimulating factor (GM-CSF), the firmly adherent cells exhibited the morphologic features of mononuclear phagocytes and were strongly esterase-positive. Flow cytometric analysis r...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:10.1111/j.1365-2249.1993.tb03375.x
更新日期:1993-01-01 00:00:00
abstract::Here we describe the presence of IgG antibodies, in the sera of patients presenting with insulin-dependent diabetes mellitus (IDDM), that react in Western blots with a 60-kD protein (Mr 60K) from rat hepatic microsomal extracts. Sera from 60 IDDM patients were screened and 31.6% were positive for the Mr 60K band. This...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:10.1046/j.1365-2249.2000.01366.x
更新日期:2000-11-01 00:00:00
abstract::Nephrosis is characterized by glomerular epithelial cell injury and a decrease in the glomerular basement membrane (GBM) proteoglycan content. Although CsA is a useful treatment for a group of patients with this disease, its mechanism of action is unclear. We have previously shown that in experimental nephrosis there ...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:10.1111/j.1365-2249.1995.tb03860.x
更新日期:1995-12-01 00:00:00
abstract::The number of thymic epithelial cells containing the serum thymic factor (FTS or thymulin), assessed by indirect immunofluorescence using an anti-FTS monoclonal antibody, was studied in the thymus of normal and autoimmune mice as a function of age. In normal mice the number of FTS+ cells was constant until the age of ...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:
更新日期:1983-04-01 00:00:00
abstract::Recently we reported that monocyte phagocytosis and chemotaxis are impaired in X-linked agammaglobulinaemia (XLA) and common variable immunodeficiency (CVI) patients. Few data exist on the in vivo expression of receptors for the constant region of immunoglobulin (IgG) (Fc gammaR) and complement receptors (CR) in these...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:10.1111/j.1365-2249.2007.03512.x
更新日期:2007-12-01 00:00:00
abstract::In vitro lymphocyte function of 13 patients with selective IgA deficiency was studied. IgG, IgA and IgM secretion by pokeweed mitogen-stimulated peripheral blood lymphocytes from normal donors and IgA deficient patients was measured by an enzyme-linked immunosorbent assay. Addition of concanavalin A or hydrocortisone ...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:
更新日期:1982-08-01 00:00:00
abstract::Serum cytokine levels and peripheral T cell subpopulations of HIV-1-infected patients before, during and after active visceral leishmaniasis (VL) were analysed and compared with appropriate controls. At VL diagnosis, co-infected patients showed higher serum levels of interferon-gamma (IFN-gamma) than matched HIV-1 con...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:10.1046/j.1365-2249.1998.00733.x
更新日期:1998-12-01 00:00:00
abstract::The complement (C)-activating capabilities in human serum of 32 mouse and 10 mouse/human chimeric MoAbs of different isotypes, and their fragments, were tested in vitro. Activation of C via the classical pathway (CP) was performed in 1% factor D-deficient serum in gelatin containing Veronal buffer in the presence of c...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:10.1111/j.1365-2249.1993.tb03446.x
更新日期:1993-11-01 00:00:00
abstract::We analysed the proportions of different microparticles (MPs) in plasma from patients with rheumatoid arthritis (RA), and assessed their relationship with disease activity/therapy and their in-vitro effect on proinflammatory cytokine release. Blood and urine samples were obtained from 55 patients with RA (24 untreated...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:10.1111/cei.12598
更新日期:2015-06-01 00:00:00
abstract::The kinetics of the cellular and humoral responses of 30 recipients of hepatitis B vaccine were studied. All individuals exerted an HBsAg blastogenic response sometime throughout the study period but the maximum response was detected on day 28 and 56. The removal of CD8+ cells enhanced significantly the HBsAg response...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:
更新日期:1988-03-01 00:00:00
abstract::Circulating immune complexes (CIC) have been postulated to contribute to the development of secondary complications in diabetes mellitus. In this study, CIC were measured in control rats and both insulin deficient and insulin treated streptozotocin-induced diabetic rats. CIC were more prevalent in both groups of diabe...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:
更新日期:1984-07-01 00:00:00
abstract::Polyclonal B cell activation has been thought to play the critical role in production of autoantibodies, and possible activation of autoreactive T cells in murine lupus, especially abnormal expansion of CD5+ B cells, is one of the characteristic findings in these mice. The aim of this study was to investigate further ...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:10.1046/j.1365-2249.1996.d01-840.x
更新日期:1996-11-01 00:00:00
abstract::Intravenous injection of t-butyl hydroperoxide rapidly killed Plasmodium vinckei in mice, and caused haemolysis. The same dose seemed harmless to unparasitized mice. Many parasites disintegrated inside circulating erythrocytes, so parasite death was not simply a passive consequence of haemolysis. Injection of desferri...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:
更新日期:1984-06-01 00:00:00
abstract::Immune parameters were compared in four groups of Ugandan subjects: HIV-and HIV+ adult patients with active pulmonary TB (HIV- PTB n = 38; HIV+ PTB n = 28), patients with HIV infection only (n = 26) and PPD+ healthy controls (n = 25). Compared with healthy controls, CD4 and CD8 T cells from patients with HIV and/or PT...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:10.1046/j.1365-2249.2000.01385.x
更新日期:2000-12-01 00:00:00
abstract::In this paper we report studies undertaken to determine the contribution of seminal prostaglandins to some of the known immunosuppressive properties of human seminal plasma. Initial studies revealed that fractions of seminal plasma enriched in E series prostaglandins, obtained by reverse phase chromatography, had a pr...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:
更新日期:1989-03-01 00:00:00
abstract::We set out to examine the effect of gold treatment on the Th2-dependent antibodies IgG4 and IgE in relation to other IgG subclasses in patients with rheumatoid arthritis (RA). Eighty-five gold-treated RA patients and 82 RA controls were studied. Serum IgG subclass concentrations were measured by ELISA, IgE was measure...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:10.1046/j.1365-2249.2000.01207.x
更新日期:2000-05-01 00:00:00
abstract::Nucleotide-binding, oligomerization domain (NOD)-like receptor family, pyrin domain containing 3 (NLRP3) gene polymorphism was reported to be associated with susceptibility, disease activity or anti-tumour necrosis factor (TNF) treatment response in rheumatoid arthritis (RA). However, the roles of NLRP3 inflammasome i...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:10.1111/cei.13167
更新日期:2018-11-01 00:00:00
abstract::An eosinophil stimulating material (ESM) is described in the blister fluids (BF) of six patients with bullous pemphigoid (BP). This ESM is similar in function to a subspecies of human colony stimulating factor (CSF), CSF-alpha, since (i) it stimulated the production from bone marrow cells of day 14 colonies (31 +/- 15...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:
更新日期:1982-12-01 00:00:00
abstract::We have compared features of experimental thyroiditis in the Buffalo strain rat induced by neonatal thymectomy, immunization with rat thyroglobulin (Tg) and complete Freund's adjuvant, and subcutaneous administration of trypan blue or 3-methylcholanthrene. The disease produced by neonatal thymectomy resulted in signif...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:
更新日期:1987-07-01 00:00:00
abstract::In a previous work we have demonstrated that in patients exhibiting a late allergic reaction (LAR), alveolar macrophages (AM) collected 18 h after bronchial allergen challenge produced high levels of IL-6 and tumour necrosis factor-alpha (TNF) which is known to up-regulate the endothelial cell expression of adhesion m...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:10.1111/j.1365-2249.1993.tb05985.x
更新日期:1993-10-01 00:00:00
abstract::The La/SSB autoantigen is a major target of long-term humoral autoimmunity in primary Sjögren's Syndrome (SS) and systemic lupus erythematosus. A majority of patients with linked anti-Ro60/Ro52/La responses target an NH2-terminal epitope designated LaA that is expressed on Ro/La ribonucleoprotein complexes and the sur...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:10.1111/cei.12171
更新日期:2013-11-01 00:00:00
abstract::Dendritic cells were enriched from adenoids of children with otitis media with effusion (OME) by density gradient centrifugation and culture techniques. An enrichment of 40-140-fold was obtained for dendritic cells. These cells were identified using morphology, enzyme cytochemistry, immunocytochemistry and functional ...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:10.1111/j.1365-2249.1992.tb03085.x
更新日期:1992-05-01 00:00:00
abstract::Reliable risk assessment for biotherapeutics requires accurate evaluation of risk factors associated with immunogenicity. Immunogenicity risk assessment tools were developed and applied to investigate the immunogenicity of a fully human therapeutic monoclonal antibody, ATR-107 [anti-interleukin (IL)-21 receptor] that ...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:10.1111/cei.12711
更新日期:2016-01-01 00:00:00
abstract::In pulmonary sarcoidosis, the typical T helper 1-mediated immune response in the lungs has been proposed to be co-ordinated by regulatory T cells; however, their exact role needs to be clarified. We used real-time polymerase chain reaction to study genes involved in regulatory T cell functions in CD4+ T cells isolated...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:10.1111/j.1365-2249.2008.03609.x
更新日期:2008-04-01 00:00:00
abstract::This report is focused on the functional capacity of Langerhans cells (LC) in the epithelium of skin and oral mucosa, which both meet different antigenic challenges. The capacity of LC from human oral and skin epithelium to provide co-stimulatory signals to T cells in vitro was compared. LC in a crude suspension of or...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:10.1111/j.1365-2249.2004.02469.x
更新日期:2004-06-01 00:00:00
abstract::Natural killer (NK) cell adoptive transfer is a promising approach for cancer immunotherapy; however, its development has been hindered by the lack of efficient methods to produce large numbers of functional NK cells. In this study, we engineered the leukaemia cell line K562 to express CD137 ligand (CD137L) and membra...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:10.1111/cei.12034
更新日期:2013-04-01 00:00:00