Abstract:
:Malaria infection induces the production of serum antibodies to a variety of malaria antigens but the prevalence of antibodies to any particular antigen is typically much less than 100%. It has been assumed that non-responsiveness to defined antigens in malaria immune subjects is due to HLS-mediated restriction of the immune response. In this study we have investigated the role of HLA and non-HLA genes in the antibody response to two merozoite surface antigens (MSP1 and MSP2) and a sexual stage antigen (Ps260/230) of Plasmodium falciparum, and conclude that host genotype is not a major determinant of responsiveness. Although antibody levels vary in accordance with seasonal variations in malaria transmission in semi-immune children, antibody levels remain stable in clinically immune adults. Antigen recognition is selective with individual donors showing consistent high titre responses to some antigens/epitopes whilst consistently failing to recognize adjacent regions/epitopes of the same protein. An alternative explanation, consistent with the data presented here, is that selective antibody responses to malaria antigens in immune individuals result from a process akin to clonal imprinting (original antigenic sin).
journal_name
Int Immunoljournal_title
International immunologyauthors
Taylor RR,Egan A,McGuinness D,Jepson A,Adair R,Drakely C,Riley Edoi
10.1093/intimm/8.6.905subject
Has Abstractpub_date
1996-06-01 00:00:00pages
905-15issue
6eissn
0953-8178issn
1460-2377journal_volume
8pub_type
杂志文章abstract::The transcription factor interferon regulatory factor-5 (IRF5) plays an important role in innate immune responses via the TLR-MyD88 (Toll-like receptor - myeloid differentiation primary response 88) pathway. IRF5 is also involved in the pathogenesis of the autoimmune disease systemic lupus erythematosus (SLE). Recent ...
journal_title:International immunology
pub_type: 杂志文章,评审
doi:10.1093/intimm/dxy032
更新日期:2018-10-29 00:00:00
abstract::Deletion of alpha i2 subunit of heterotrimeric G proteins induces a 2-4-fold increase in the proportions of CD4 and CD8 single-positive (SP) thymocytes as compared with wild-type littermates, but how G alpha i2 is involved in thymocyte development is unknown. To determine a role for G alpha i2 in a specific developmen...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/dxh204
更新日期:2005-03-01 00:00:00
abstract::Notch2 and Delta-like 1 (Dll1) have been implicated in the development of marginal zone B (MZB) cells. In the present study, we characterized the expression and function of mouse Notch receptors and ligands in the spleen by using newly generated mAbs. Although Notch2 was expressed on both B and T cells in the spleen, ...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/dxn034
更新日期:2008-06-01 00:00:00
abstract::Lymphocyte homing to lymph nodes is regulated by transient but specific interactions between lymphocytes and high endothelial venules (HEVs), the initial phase of which is mainly governed by the leukocyte adhesion molecule L-selectin, which recognizes sulfated and sialylated O-linked oligosaccharides displayed on sial...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/dxh128
更新日期:2004-09-01 00:00:00
abstract::We have analyzed transcripts encoding the variable regions of Ig heavy chains from adult and fetal bovine splenocytes and bovine x mouse heterohybridomas. The 13 adult, seven fetal and two heterohybridomas transcripts as well as the six genes that were sequenced had > 83% identity to each other in the VH-encoded regio...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/9.1.189
更新日期:1997-01-01 00:00:00
abstract::We have recently described the novel A6H antigen expressed on human peripheral blood T cells and on renal cell carcinoma cells. Cross-linking of the A6H antigen results in co-stimulation of human CD4(+) T cells, characterized by induction of the transcription factor activator protein-1 (AP-1), proliferation and promin...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/12.3.253
更新日期:2000-03-01 00:00:00
abstract::M cells are responsible for uptake of mucosal antigens in Peyer's patches (PPs). Differentiation of M cells is thought to be induced by interactions between follicle-associated epithelium and PP cells; however, it remains elusive what types of immune cells function as M-cell inducers. Here, we attempted to identify th...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/dxq478
更新日期:2011-04-01 00:00:00
abstract::Dendritic cells (DCs) are responsible for the initiation of immune responses. Our study demonstrates a new pathway for generating a large quantity of stimulatory monocyte-derived DCs (Mo-DCs) from human monocytes using anti-4-1BB ligand (4-1BBL) mAb to trigger reverse signaling. The anti-4-1BBL-driven Mo-DCs (DCs(alph...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/dxp077
更新日期:2009-10-01 00:00:00
abstract::A human neoplastic B cell line SSK41 that expresses IgM on its surface switches spontaneously to IgG-producing cells. The SSK41 line contains a single immunoglobulin heavy-chain locus, the constant region (C) genes of which retain the germline configuration. The IgG-producing SSK41 line was purified by sorting, and sh...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/1.6.631
更新日期:1989-01-01 00:00:00
abstract::The utilization of individual VH7183 genes in the autoimmune non-obese diabetic (NOD) mouse and the normal C57BL/6 mouse, both carrying the IgHb haplotype, was investigated. Nucleotide sequence analyses of a large number of VHDJH rearrangements utilizing VH7183 gene segments allowed us to identify 10 individual member...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/6.4.623
更新日期:1994-04-01 00:00:00
abstract::Spectroscopic methods have been applied to elucidate conformational differences responsible for the immunological diversity of two synthetic multichain copolymers, Tyr1Tyr2Glu3Glu4-poly-DL-Ala--poly-Lys and Tyr1Glu2Tyr3Glu4-poly-DL-Ala--poly-Lys. Despite their far-reaching structural similarity in the epitope peptide ...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/5.6.591
更新日期:1993-06-01 00:00:00
abstract::The association of celiac disease (CD) with HLA-DQ2 and HLA-DQ8 is indicative of preferential mucosal T cell recognition of gluten fragments bound to either DQ allele. We have recently identified two gluten-derived, HLA-DQ8-restricted T cell stimulatory peptides, one each from gliadin and glutenin, recognized by speci...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/12.8.1157
更新日期:2000-08-01 00:00:00
abstract::Acute lung injury (ALI) and acute respiratory distress syndrome (ARDS) are among the major causes of death worldwide due to acute inflammation in the lung. AT-rich interactive domain-containing 5a (Arid5a) is an RNA-binding protein involved in inflammatory autoimmune disease through post-transcriptional control of Il6...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/dxx004
更新日期:2017-02-01 00:00:00
abstract::Absence of transforming growth factor-beta (TGF-beta) signaling to T cells in mice results in an increase in T cell numbers, an activated CD44 high, CD69-, CD25- T cell phenotype and a T cell-mediated injury to many organs. It is not known if such T cell activation in the absence of TGF-beta signaling is spontaneous o...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/dxh233
更新日期:2005-05-01 00:00:00
abstract::In contrast to most organs, the anatomy of the liver may allow naive CD8(+) T cells to make direct contact with liver parenchymal cells. We have previously shown, using a combination of TCR transgenic T cells specific for H-2 K(b) and hepatocytes expressing a transgenic H-2 K(b) molecule, that hepatocytes can induce a...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/11.8.1225
更新日期:1999-08-01 00:00:00
abstract::Despite intense recent interest, the suppressive mechanisms of regulatory CD25+CD4 T cells remain poorly understood. One deficiency in the field is the lack of in vivo models where the effects of regulatory CD25+CD4 T cells on antigen-specific responder T cells can be measured quantitatively. We describe one such mode...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/dxh213
更新日期:2005-04-01 00:00:00
abstract::Mouse CD4+ T cells were subdivided into two subpopulations, naive (CD44low CD45RBhigh) and memory (CD44high CD45RBlow) T cells, by flow cytometric analysis. Examination of spleen and peripheral blood of C57BL/6 mice of various ages revealed that there was a reciprocal age-associated change in these two subpopulations,...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/7.1.97
更新日期:1995-01-01 00:00:00
abstract::Acute graft-versus-host disease (GvHD) is a serious complication after allogeneic bone marrow transplantation. Donor-derived T cells infiltrate recipient target organs and cause severe tissue damage, often leading to death of the affected patient. Tissue destruction is a direct result of donor CD8+ T cell activation a...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/14.5.503
更新日期:2002-05-01 00:00:00
abstract::Human endothelial cells (ECs) constitutively express OX40L and co-stimulate memory CD4(+) T cell proliferation that is dependent upon OX40-OX40L interaction. In vivo, OX40 prolongs T cell survival; however, an unanswered question is whether it can also prolong synthesis of proliferation-sustaining cytokines such as IL...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/dxh255
更新日期:2005-06-01 00:00:00
abstract::Recent studies have revealed a role for basophils as antigen-presenting cells that preferentially induce T(h)2 cells in response to complexes of antigen plus antigen-specific IgE, to protease allergens or to helminthic parasites in vitro and in vivo through the production of 'early IL-4' and the presentation to CD4(+)...
journal_title:International immunology
pub_type: 杂志文章,评审
doi:10.1093/intimm/dxq052
更新日期:2010-07-01 00:00:00
abstract::Myasthenia gravis (MG) is an autoimmune disease, caused by autoantibodies against the muscle acetylcholine receptor (AChR), an oligomeric transmembrane glycoprotein composed of alpha(2)beta gamma delta subunits. The alpha subunit carries in its N-terminal extracellular domain the main immunogenic region (MIR), a group...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/12.9.1255
更新日期:2000-09-01 00:00:00
abstract::Seeligeriolysin O (LSO), a member of cholesterol-dependent cytolysins of Listeria seeligeri, exhibits cytokine-inducing activity. In this study, we examined the profile of cytokines expressed in macrophages of mice after stimulation with full-length form of recombinant LSO (rLSO530), C-terminal-truncated protein (rLSO...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/dxh341
更新日期:2005-12-01 00:00:00
abstract::Synovial tissues are frequent sites of inflammatory disorders in which dendritic cells (DCs) may play an important role. This study examines potential antigen-presenting cells obtained from synovium-rich tissues (SRTs) by vascular perfusion of rat hind limbs with collagenase and further enzymatic digestion of the disa...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/dxh290
更新日期:2005-08-01 00:00:00
abstract::Mutagenic analyses have identified structural motifs important for TCR-mediated signaling in the antigen-binding chains, CD3 and zeta subunits of the TCR complex. In this study, we altered selected residues in the transmembrane and extracellular constant regions of the TCR beta chain and expressed the mutants in a T h...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/10.7.923
更新日期:1998-07-01 00:00:00
abstract::In humans, the thymus is the primary lymphoid organ able to support the development of T cells through its three-dimensional (3D) organization of the thymic stromal cells. Since a remarkable number of similarities are shared between the thymic epithelial cells (TECs) and skin-derived keratinocytes and fibroblasts, in ...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/dxt035
更新日期:2013-12-01 00:00:00
abstract::The origin of cell activation in post-radiation fibrosis and its chronic extension are still poorly understood. Since local IL-2 cancer treatment sometimes triggers intraperitoneal fibrosis we have analyzed three myofibroblastic cell strains from post-radiation skin fibrosis (FPR7, FPR10 and FPR15) for their interacti...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/6.10.1585
更新日期:1994-10-01 00:00:00
abstract::Peptide-MHC class II complexes (pMHC II) are degraded by MARCH-I-mediated ubiquitination, and the stabilization of pMHC II by loss of its ubiquitination is one phenotype defining the activation of conventional dendritic cells (cDCs). However, the role of such stabilization of pMHC II in the context of T-cell activatio...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/dxt066
更新日期:2014-05-01 00:00:00
abstract::'Programmed cell death' has been used to describe the death of cells killed by cytotoxic T cells or growth factor deprivation. Although bcl-2 can prevent death of cells deprived of growth factor, it failed to protect cells against T cell killing. In spite of bcl-2 expression, the DNA of targeted cells was degraded int...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/4.7.821
更新日期:1992-07-01 00:00:00
abstract::One of the characteristic features of asthma is chronic airway inflammation typically with eosinophil infiltration. Most asthmatics can be treated successfully with conventional treatment appropriate for their severity, but in some severe cases, asthma cannot be well controlled even with thorough treatment and this co...
journal_title:International immunology
pub_type: 杂志文章,评审
doi:10.1093/intimm/dxx045
更新日期:2017-07-01 00:00:00
abstract::The TCR complex transduces the antigen recognition signal through common activation motifs present in both CD3 gamma delta epsilon chains and zeta dimers within the complex. We have investigated functional roles of the cytoplasmic domain in zeta and CD3 gamma delta epsilon for T cell activation in early and late respo...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/6.11.1671
更新日期:1994-11-01 00:00:00