Abstract：
:Peripheral T lymphocytes from asymptomatic HBsAg carriers and hepatitis B (HB) immune (naturally acquired or vaccine induced) donors were induced into interleukin-2 (IL-2) secretion by plasma-derived HBsAg and the translational products of the S- and pre-S2+S gene of HB virus (HBV) in vitro. Biphasic time courses of IL-2 secretion were obtained for all donors tested. The first peak seemed to be mitogenically induced, as it was demonstrated in T cell cultures from asymptomatic HBsAg carrier, HB-immune donors as well as HB-susceptible controls and exhibited similar kinetics to that of the mitogen phytohaemagglutinin (PHA) induced IL-2 secretion. The mitogenically induced IL-2 secretion was prompt in T cell cultures from asymptomatic HBsAg carriers compared with HB-immune and HB-susceptible donors, and significantly higher after stimulation with high (100-1,000 ng/ml) compared with low (0.1-1.0 ng/ml) concentrations of HBsAg, indicating that T lymphocytes from asymptomatic HBsAg carriers are mitogenically pre-activated by circulatory HBsAg in high concentrations in vivo. In contrast, the second peak obtained after 4-7 days of antigen stimulation was antigen-specifically induced as it was not registered in control culture supernatants from HB-susceptible individuals. T cells from six out of seven asymptomatic HBsAg carriers exhibited reduced responsiveness to the translational product of the S-gene of HBV, whereas T cells from HB-immune donors responded equally well to pre-S2 containing and non-containing HBsAg preparations. An HBsAg-induced mitogenic T cell activation and aberrant T cell sensitization towards S-gene-encoded determinants may result in altered immunoregulatory functions within the T cell compartment, with consequences for the development of an adequate antibody response to HBsAg in asymptomatic HBsAg carriers.
journal_name
Clin Exp Immunoljournal_title
Clinical and experimental immunologyauthors
Sylvan SP,Hekkström UBsubject
Has Abstractpub_date
1989-11-01 00:00:00pages
207-13issue
2eissn
0009-9104issn
1365-2249journal_volume
78pub_type
杂志文章abstract：:We have studied immunological, serological and clinical abnormalities in 264 HIV-positive and HIV-negative drug abusers. Ninety percent of the 264 drug addicts (mean age 26 +/- 0.8 years) were found to have HIV antibodies and there was a significant increase (P less than 0.01) in the frequency of HIV antibody positivi...
journal_title：Clinical and experimental immunology
pub_type： 杂志文章
doi：
更新日期：1988-05-01 00:00:00
abstract：:Clearance rates in the guinea pig were determined for intact guinea pig and human C1 inhibitor, the complexes of both inhibitors with human Cls, beta factor XIIa and kallikrein, and for each inhibitor cleaved at its reactive centre with trypsin. Intact human and guinea pig C1 inhibitor were cleared from the circulatio...
journal_title：Clinical and experimental immunology
pub_type： 杂志文章
doi：10.1046/j.1365-2249.1996.d01-714.x
更新日期：1996-07-01 00:00:00
abstract：:Opisthorchis viverrini infection is associated with human hepatobiliary disease and cholangiocarcinoma, but the role of the immune response in the pathogenesis of infection is unclear. Here ultrasonography was used to examine the biliary tracts of residents from an endemic community. Delayed-type hypersensitivity resp...
journal_title：Clinical and experimental immunology
pub_type： 杂志文章
doi：10.1111/j.1365-2249.1991.tb08151.x
更新日期：1991-05-01 00:00:00
abstract：:Intravenous immune globulin (IVIG) exhibits a number of immunomodulatory properties that are mediated by the Fe portion of IgG and by the spectrum of variable (V) regions contained in the immune globulin preparations. Five predominant and non-exclusive mechanisms of action have been proposed to account for the immunom...
journal_title：Clinical and experimental immunology
pub_type： 杂志文章,评审
doi：
更新日期：1996-05-01 00:00:00
abstract：:A method for the isolation of complement-fixing immune complexes from human serum and the separation of antigen from antibody is described. In order to isolate the complexes, we used soluble bovine conglutinin in a three-step procedure: (1) serum containing immune complexes is reacted with conglutinin in the presence ...
journal_title：Clinical and experimental immunology
pub_type： 杂志文章
doi：
更新日期：1981-10-01 00:00:00
abstract：:Oral immunization with 25 mg/day of ovalbumin resulted in a number of changes in non-specific immune responsiveness, including increases in antibody produced to T-dependent but not T-independent antigens and the abrogation of tolerance induced by both oral and intravenous routes. The effect was transient, sex- and str...
journal_title：Clinical and experimental immunology
pub_type： 杂志文章
doi：
更新日期：1983-05-01 00:00:00
abstract：:Hepatitis B (HB) vaccine is very promising for the prevention of HB infection. There exist, however, some non-responders to current vaccination trials. In this study, taurine, parotin and lithium were selected as adjuvants which can be administered orally. The mechanisms of these three materials as adjuvants and their...
journal_title：Clinical and experimental immunology
pub_type： 杂志文章
doi：
更新日期：1988-06-01 00:00:00
abstract：:The role of T cells in the pathophysiology of chronic obstructive pulmonary disease (COPD) is not yet certain, although varying reports have shown increases in T helper 1 (Th1) and/or Th2 cytokines in peripheral blood and bronchoalveolar lavage (BAL). No studies have examined cytokine production by intraepithelial T c...
journal_title：Clinical and experimental immunology
pub_type： 杂志文章
doi：10.1111/j.1365-2249.2007.03451.x
更新日期：2007-10-01 00:00:00
abstract：:Schizophrenic patients are reported to have immunological dysfunction, however, the immune response to surgery in schizophrenic patients remains unclear. We measured plasma interleukin-6 (IL-6), interleukin-8 (IL-8) and tumour necrosis factor-alpha (TNF-alpha) before, during and after colectomy, hemicolectomy and sigm...
journal_title：Clinical and experimental immunology
pub_type： 杂志文章
doi：10.1046/j.1365-2249.2001.01581.x
更新日期：2001-07-01 00:00:00
abstract：:Activation of the interferon (IFN) system is an early defence mechanism against viral infections. The virus stimulates production of IFN by nucleated cells including the peripheral blood mononuclear cells (PBMC), and this IFN in turn activates several IFN-dependent immune mechanisms including the induction of an anti-...
journal_title：Clinical and experimental immunology
pub_type： 杂志文章
doi：
更新日期：1985-05-01 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：:Breakpoint cluster region-Abelson murine leukaemia viral oncogene homologue 1 (BCR-ABL1), encoded by the Philadelphia (Ph) chromosome, is the characteristic of chronic myeloid leukaemia (CML) and a subset of acute lymphoblastic leukaemia (ALL). We demonstrated that expression of the Ik6 transcript, which lacked exons ...
journal_title：Clinical and experimental immunology
pub_type： 杂志文章
doi：10.1111/cei.12812
更新日期：2016-09-01 00:00:00
abstract：:Recent evidence suggests that T cell apoptosis could be involved in the pathogenesis of HIV-1 infection. As the progression of HIV-2 associated disease appears to be slower than that of HIV-1, we investigated whether there were differences in the degree of T cell death and apoptosis in peripheral blood mononuclear cel...
journal_title：Clinical and experimental immunology
pub_type： 杂志文章
doi：10.1111/j.1365-2249.1994.tb06123.x
更新日期：1994-11-01 00:00:00
abstract：:Premature atherosclerosis has been observed during the course of different systemic inflammatory diseases such as rheumatoid arthritis and sytemic lupus erythematosus. Remarkably, relatively few studies have been published on the occurrence of accelerated atherosclerosis in patients with vasculitis. In giant cell arte...
journal_title：Clinical and experimental immunology
pub_type： 杂志文章,评审
doi：10.1111/j.1365-2249.2009.03885.x
更新日期：2009-06-01 00:00:00
abstract：:The lymph nodes of mice overloaded with mycobacterial products, either by the injection of whole or ultrasonicated organisms, or as a consequence of severe infection with Mycobacterium ulcerans, contain phagocytic cells which cause spontaneous transformation of the lymph node cells in a low volume, high cell density c...
journal_title：Clinical and experimental immunology
pub_type： 杂志文章
doi：
更新日期：1975-07-01 00:00:00
abstract：:The production of interleukin-2 (IL-2) by Con A-activated spleen cells (SC) progressively declined and reached negligible values during the course of infection of C57BL/6 mice with Mycobacterium lepraemurium. In addition, the capacity of cultured SC to utilize IL-2 was highly reduced, as demonstrated by the accumulati...
journal_title：Clinical and experimental immunology
pub_type： 杂志文章
doi：
更新日期：1989-04-01 00:00:00
abstract：:Patients with Hodgkin's disease have increased numbers of spontaneously proliferating circulating lymphocytes. In order to test the relationship between this phenomenon and the in vitro mitogenic response, both spontaneous lymphocyte proliferation and the response to stimulation with phytohaemagglutinin were quantifie...
journal_title：Clinical and experimental immunology
pub_type： 杂志文章
doi：
更新日期：1978-04-01 00:00:00
abstract：:Secretory IgA antibody responses such as those directed against respiratory and enteric pathogens, may be impaired in protein-calorie malnutrition. In previous studies using a rat model of the mucosal immune response to cholera toxin, as little as 2 weeks of severe protein deprivation markedly impaired mucosal anti-to...
journal_title：Clinical and experimental immunology
pub_type： 杂志文章
doi：
更新日期：1985-04-01 00:00:00
abstract：:Eighteen patients showing hypersensitivity to nitrofurantoin with symptoms like sudden fever, malaise, cough, pleuritis, leucocytosis and sometimes eosinophilia were analysed for immune reactions, i.e. lymphocyte transformation and specific antibodies. In addition, thirty-three individuals treated with the drug but wi...
journal_title：Clinical and experimental immunology
pub_type： 杂志文章
doi：
更新日期：1977-06-01 00:00:00
abstract：:Merozoite surface protein 2 (MSP2) expressed by Plasmodium falciparum asexual blood stages has been identified as a promising vaccine candidate. In order to explore allelic family-specific humoral responses which may be responsible for parasite neutralization during natural infections, isolates from individuals with e...
journal_title：Clinical and experimental immunology
pub_type： 杂志文章
doi：10.1046/j.1365-2249.2002.01904.x
更新日期：2002-08-01 00:00:00
abstract：:Both the complement system and tissue factor (TF), a key initiating component of coagulation, are activated in sepsis, and cross-talk occurs between the complement and coagulation systems. C1-inhibitor (C1-INH) can act as a regulator in both systems. Our aim in this study was to examine this cross-talk by investigatin...
journal_title：Clinical and experimental immunology
pub_type： 杂志文章
doi：10.1111/cei.12098
更新日期：2013-08-01 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：:To gain insight into possible determinants of in vivo polyclonal B cell activation seen in rheumatoid arthritis (RA), we enumerated immunoglobulin secreting cells appearing in cultures of peripheral blood mononuclear cells that were stimulated with pokeweed mitogen (PWM) or a newly described polyclonal B cell activato...
journal_title：Clinical and experimental immunology
pub_type： 杂志文章
doi：
更新日期：1984-05-01 00:00:00
abstract：:Adoptive immunotherapy with in vitro expanded antigen-specific cytotoxic T lymphocytes (CTLs) may be an effective approach to prevent, or even treat, Aspergillus (Asp) infections. Such lines can be generated using monocyte-derived dendritic cells (DC) as antigen-presenting cells (APC) but requires a relatively high vo...
journal_title：Clinical and experimental immunology
pub_type： 杂志文章
doi：10.1111/j.1365-2249.2007.03544.x
更新日期：2008-02-01 00:00:00
abstract：:This study tested the hypothesis that pregnant female baboons exhibit increased levels of various inflammatory mediators in serum resulting from ligature-induced periodontitis, and that these profiles would relate to periodontal disease severity/extent in the animals. The animals were sampled at baseline (B), mid-preg...
journal_title：Clinical and experimental immunology
pub_type： 杂志文章
doi：10.1111/j.1365-2249.2010.04202.x
更新日期：2010-12-01 00:00:00
abstract：:Insulin autoantibodies (IAA) can appear in children within months of introducing solid foods to the diet and before clinical type 1 diabetes. The aim of this study was to determine whether infant dietary antigens could be immunizing agents of IAA. To this end, IAA binding to [(125) I]insulin was competed with food pre...
journal_title：Clinical and experimental immunology
pub_type： 杂志文章
doi：10.1111/j.1365-2249.2011.04324.x
更新日期：2011-04-01 00:00:00
abstract：:It is well known that monocytes may play an active role in thrombogenesis, since they may express on their surface tissue factor, the major initiator of the clotting cascade. The results of this investigation demonstrate beta-2-glycoprotein I (beta2-GPI) mRNA expression by human peripheral blood monocytes, indicating ...
journal_title：Clinical and experimental immunology
pub_type： 杂志文章
doi：10.1046/j.1365-2249.2003.02180.x
更新日期：2003-06-01 00:00:00
abstract：:Reduced B cell numbers and a mutation in Btk are considered sufficient to make the diagnosis of X-linked agammaglobulinaemia. In the process of conducting family studies, we identified a 58-year-old healthy man with an amino acid substitution, Y418H, in the adenosine-5'-triphosphate binding site of Btk. Immunofluoresc...
journal_title：Clinical and experimental immunology
pub_type： 杂志文章
doi：10.1111/j.1365-2249.2008.03593.x
更新日期：2008-04-01 00:00:00
abstract：:Antilactoferrin antibodies have been reported in patients with several autoimmune disorders, including primary biliary cirrhosis, autoimmune hepatitis and autoimmune cholangitis. We investigated the prevalence and the clinical significance of such autoreactivity in patients with autoimmune and viral chronic liver dise...
journal_title：Clinical and experimental immunology
pub_type： 杂志文章
doi：10.1046/j.1365-2249.2001.01524.x
更新日期：2001-06-01 00:00:00
abstract：:Experimental autoimmune orchitis (EAO) was produced in C3H/He mice with as high as 100% incidence by two or three s.c. injections of 1 x 10(7) viable syngeneic testicular germ cells (TC) without resorting to adjuvants, Bordetella pertussis vaccine, or other immunological manipulations. On day 40 after the first inject...
journal_title：Clinical and experimental immunology
pub_type： 杂志文章
doi：10.1111/j.1365-2249.1991.tb05603.x
更新日期：1991-01-01 00:00:00
