Abstract:
:The squirrel monkey Saimiri sciureus is one of the World Health Organization recommended experimental models of Plasmodium falciparum blood stage infection. Anti-malaria antibodies developed by this host after a drug-controlled infection play an important part in the acquired protection against the P. falciparum blood stages. Furthermore, the use of two anti-Saimiri immunoglobulin (Ig) monoclonal antibodies (mAb) has permitted the differentiation between protective (mAb 3A2/G6) and non-protective (mAb 3E4/H8) antibodies, as shown by transfer experiments to recipient monkeys infected with blood stage parasites. In the present study we have established that protection conferred by the 3A2/G6+ protective Ig preparation is strictly associated with an in vitro opsonic activity. Such an opsonic activity is not detectable in the 3E4/H8+ non-protective Ig population. In addition, results indicate that the 3E4/H8+ non-protective Ig population competes with protective opsonic 3A2/G6+ Ig antibodies when co-incubated with parasitized red blood cells. Thus, it follows that protection can be directly correlated to the quantitative and qualitative fluctuation of the two Ig populations. When challenged with 1 x 10(8) P. falciparum-infected Saimiri red blood cells parasitemia occurred in 5 out of 12 Saimiri who were lacking detectable 3A2/G6+ opsonic antibodies in their sera. By employing antibodies against the human Fc receptor for IgG (Fc gamma R) in an in vitro phagocytic assay, we have been able to show that the principal receptor is Fc gamma RIII. Finally, we also show that in contrast to the situation in man, this receptor is present on circulating monocytes. These findings could lead to a different strategy in designing malaria vaccine candidates and also allow the possibility of predicting the outcome of immunization trials in Saimiri monkeys.
journal_name
Eur J Immunoljournal_title
European journal of immunologyauthors
Groux H,Perraut R,Garraud O,Poingt JP,Gysin Jdoi
10.1002/eji.1830201022subject
Has Abstractpub_date
1990-10-01 00:00:00pages
2317-23issue
10eissn
0014-2980issn
1521-4141journal_volume
20pub_type
杂志文章abstract::Spleen cells from BALB/c mice were fused with the nonsecreting myeloma line X63.Ag8.6.5.3 seven days after immunization with NP-CG (4-hydroxy-3-nitrophenyl) acetyl-chicken gamma-globulin. The hybrid cell lines obtained were analyzed for heavy and light chain distribution, fine specificity, and idiotype. The majority o...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830111109
更新日期:1981-11-01 00:00:00
abstract::Mercury-induced autoimmune glomerulonephritis in the Brown-Norway (BN) rat is characterized by the successive appearance of linear and granular glomerular IgG deposits. Anti-laminin autoantibodies represent the major part of the anti-glomerular basement membrane (GBM) antibodies produced in this model. Fusions were pe...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830200114
更新日期:1990-01-01 00:00:00
abstract::Plasma cells secreting IgG, M, and A abound in the synovium of patients with rheumatoid arthritis, yet their immunoglobulin repertoire and clonal relationship remain to be elucidated. Locally synthesized immunoglobulins probably contribute to the chronic joint inflammatory processes which are characteristic of these p...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830270219
更新日期:1997-02-01 00:00:00
abstract::DC not only activate CD4 T (Th) cell and cytotoxic CD8 T cell (CTL) responses against pathogens, but they also tolerize autoreactive T cells in order to avoid autoimmunity. Previous studies have demonstrated that steady-state DC can tolerize naïve CTL, naïve Th cells and memory CTL. A study in this issue of the Europe...
journal_title:European journal of immunology
pub_type:
doi:10.1002/eji.201040704
更新日期:2010-07-01 00:00:00
abstract::Gammadelta T cells are expanded in human IgA nephropathy and in a rat model of adriamycin (ADR)-induced nephropathy. Despite different diseases and species, these renal gammadelta T cells use a restricted set of gammadelta T cell receptor (TCR) genes. To explore whether this phenomenon of post injury expansion of gamm...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200324780
更新日期:2004-08-01 00:00:00
abstract::In human T lymphocytes a functional complex is formed between the protein tyrosine phosphatase CD45, the protein tyrosine kinase p56lck and a phosphoprotein, pp32, a possible common substrate. Here we demonstrate that the previously described pp32 protein is composed of two distinct molecules (pp29 and pp32) in both r...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830220727
更新日期:1992-07-01 00:00:00
abstract::Peptides presented by MHC class I molecules are mostly derived from proteins synthesized by the antigen-presenting cell itself, while peptides presented by MHC class II molecules are predominantly from materials acquired by endocytosis. External antigens can also be presented by MHC class I molecules in a process refe...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.201445156
更新日期:2015-02-01 00:00:00
abstract::Naive and central memory CD8 T cells use CCR7 to recirculate through T cell zones of secondary lymphoid organs where they can encounter antigen. Here we describe a subset of human CD8 T cells expressing CXCR5 which enables homing in response to CXCL13 produced within B cell follicles. CXCR5+ CD8 T cells were found in ...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200636746
更新日期:2007-12-01 00:00:00
abstract::Fc gamma receptor-bearing U937 cells, when incubated in serum-free buffer, were found to release spontaneously a suppressor material for pokeweed mitogen-drigen IgG synthesis which could be retained on Sepharose 4B-IgG immunosorbents. Immunosorbents coupled with IgM or F (ab')2 fragments of IgG were unable to retain t...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830160106
更新日期:1986-01-01 00:00:00
abstract::The transcription factor Hhex (hematopoietically expressed homeobox gene) is critical for development of multiple lymphoid lineages beyond the common lymphoid progenitor. In addition, Hhex regulates hematopoietic stem cell (HSC) self-renewal, emergency hematopoiesis, and acute myeloid leukemia initiation and maintenan...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.201948371
更新日期:2020-07-01 00:00:00
abstract::Specific monoclonal antibodies (mAb) directed against the CD23 antigen were used to study human interleukin 4 (hIL4)-induced IgE production by blood and tonsillar mononuclear cells. Both peripheral blood and tonsillar mononuclear cells stimulated by hIL4 expressed membrane CD23 as detected by the binding of all anti-C...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830200120
更新日期:1990-01-01 00:00:00
abstract::A monoclonal antibody (12-15) reactive with the mouse CD2 was used to study the expression of the antigen in different lymphoid cell subsets. By two-color immunofluorescence using B or T cell-specific reagents and cell sorting in combination with biochemical analysis we provide evidence that the CD2 antigen is present...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830190826
更新日期:1989-08-01 00:00:00
abstract::In previous studies, Saimiri sciureus boliviensis monkeys have been immunized with four recombinant proteins reproducing part of the circumsporozoite (CS) protein of Plasmodium vivax sporozoites (NS1(81) V20, rPvCS-1, rPvCS-2, rPv-CS-3), or with irradiated sporozoites of P. vivax Salvador I strain. To analyze the anti...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830220234
更新日期:1992-02-01 00:00:00
abstract::MHC class II tetramers are attractive tools to study antigen-specific CD4(+) T cell responses in various clinical situations in humans. HLA-DRA1*0101/DRB1*0401 MHC class II heterodimers were produced as empty molecules using the Drosophila melanogaster expression system. Peptide binding experiments revealed that these...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200425281
更新日期:2004-10-01 00:00:00
abstract::Btk is a member of the Tec family of protein tyrosine kinases expressed in B cells. It is stimulated following cross-linking of the B cell receptor which leads to the autophosphorylation of a specific residue in the SH3 domain, Y223. Previous work using Btk-derived fusion proteins has shown that the Btk SH3 domain bin...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/(SICI)1521-4141(199907)29:07<2269::AID-IMM
更新日期:1999-07-01 00:00:00
abstract::Neutrophils express pattern recognition receptors (PRRs) and regulate immune responses via PRR-dependent cytokine production. An emerging theme is that neutrophil PRRs often exhibit cell type-specific adaptations in their signalling pathways. This prompted us to examine inflammasome signalling by the PRR NLRP3 in muri...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.201545943
更新日期:2016-04-01 00:00:00
abstract::Human papillomavirus (HPV) infections account for more than 50% of infection-linked cancers in women worldwide. The immune system controls, at least partially, viral infection and around 90% of HPV-infected women clear the virus within two years. However, it remains unclear which immune cells are implicated in this pr...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.201141693
更新日期:2011-11-01 00:00:00
abstract::The T cell receptor (TcR) on CD8+ T lymphocytes recognizes a complex which consists of a major histocompatibility complex (MHC) heavy chain, beta 2-microglobulin (beta 2M), and peptide on the surface of antigen-presenting cells. Mutational analyses have suggested that the TcR recognizes both the alpha 1 and alpha 2 do...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830231145
更新日期:1993-11-01 00:00:00
abstract::In vivo, T cells expressing low-affinity TCR predominate in primary, but not in secondary responses, a process referred to as T cell affinity maturation. Using CD4 dependence as a measure of the avidity of the interaction between the allospecific TCR and the alloantigen, we show that a similar process occurs in mixed ...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/1521-4141(200102)31:2<646::aid-immu646>3.0
更新日期:2001-02-01 00:00:00
abstract::The relative complement-mediated lytic capability of the IgG subclass isotypes was studied using a matched set of mouse-human chimeric anti-(4-hydroxy-3-nitrophenyl)acetyl (NP) antibodies. The subclass pattern was shown to be highly dependent on variations in antigen concentration and to lesser extent on variation in ...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830210103
更新日期:1991-01-01 00:00:00
abstract::T cells are known to play an important role in beta cell destruction in the nonobese diabetic (NOD) mouse model of Type I diabetes and islet-specific T cell clones have been demonstrated to be capable of adoptive transfer of diabetes. One important issue involves the identity of beta cell antigens that are recognized ...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830250430
更新日期:1995-04-01 00:00:00
abstract::The endoplasmic reticulum (ER) protein tapasin is essential for the loading of high-affinity peptides onto MHC class I molecules. It mediates peptide editing, i.e. the binding of peptides of successively higher affinity until class I molecules pass ER quality control and exit to the cell surface. The molecular mechani...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200939342
更新日期:2010-01-01 00:00:00
abstract::The T cell repertoire of BALB/c mice contains clones capable of recognizing p-azobenzenearsonate (ABA)-tyrosine (Tyr) in association with both I-A and I-E-encoded class II molecules. Immunization of BALB/c animals with ABA-GAT (terpolymer of L-Glu60-L-Ala30-L-Tyr10) or ABA-GLT (terpolymer of L-Glu51-L-Lys34-L-Tyr15) i...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830151214
更新日期:1985-12-01 00:00:00
abstract::Indoleamine 2,3-dioxygenase (IDO) suppresses T cell responses by its action in catabolising tryptophan. It is important in maintenance of immune privilege in the placenta. We investigated the activity of IDO in the cornea, following corneal transplantation and the effect of IDO over-expression in donor corneal endothe...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200535238
更新日期:2006-03-01 00:00:00
abstract::Human T cell clones (TCC) are antigen-presenting cells (APC) able to present peptides and superantigens (SAg) and to process and present intact proteins. TCC express major histocompatibility complex (MHC) class II antigens and molecules involved in the accessory signal delivery, such as B7.1 and B7.2/B70. Notwithstand...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830260411
更新日期:1996-04-01 00:00:00
abstract::About one hundred immunologists recently met in Capo Caccia, Sardinia, for the first of three events that will comprise the EMBO Conference Series, organised by the ENII, on Molecular and Cellular Mechanisms of Immune Regulation. The 2007 Conference focused on how immunity is shaped in healthy and diseased tissues. ...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200790031
更新日期:2007-08-01 00:00:00
abstract::Human plasmacytoid dendritic cells (PDC) are believed to link innate and adaptive immunity by producing type I interferon (IFN-I) and triggering adaptive T cell-mediated immunity. However, it remains elusive to which degree both PDC functions are linked. Here we show that CMV antigen targeted to PDC using a CD303 (blo...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200737552
更新日期:2008-07-01 00:00:00
abstract::The anti-PC antibodies of BALB/c origin bear predominantly the idiotype characteristic of the phosphorylcholine (PC)-binding T15 idiotype than sera from adult mice, and, unlike the latter, they also contain detectable amounts of anti-T15 antibodies. By 2 weeks of age the anti-T15 antibodies are no longer detectable wh...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830060710
更新日期:1976-07-01 00:00:00
abstract::In this study two newly developed monoclonal antibodies, ED5 and ED6, are described, which specifically recognize nonlymphoid cells in B cell follicles of spleen and lymph nodes. Enzyme and immunocytochemical techniques demonstrated that ED5 and ED6 stain two different types of reticulum cells. The staining patterns w...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830160518
更新日期:1986-05-01 00:00:00
abstract::Cholera toxin (CT) can function as a potent adjuvant in the mucosal immune response. However, we have found that treatment of A20-HL murine B lymphoma cells with CT severely inhibits the presentation of ovalbumin (OVA) to cells of the T cell clone 42-6A specific for OVA(323-339)/I-Ad, whereas it does not affect the pr...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/(SICI)1521-4141(199905)29:05<1561::AID-IMM
更新日期:1999-05-01 00:00:00