Abstract：
:The search for novel chemical classes of anti-malarial compounds to cope with the current state of chemoresistance of malaria parasites has led to the identification of Plasmodium falciparum aminopeptidase 1 (PfA-M1) as a new therapeutic target. PfA-M1, known to be involved in the hemoglobin digestion cascade which helps to provide most of the amino acids necessary to the parasite's metabolism, is currently considered as a promising target for anti-malarial chemotherapy. However, its immunogenic properties have not yet been tested in the Gabonese population. In Gabon, the prevalence of malaria remains three times higher in semi-urban areas (60·12%) than in urban areas (17·06%). We show that malaria-specific PfA-M1 antibodies are present in children and increase with the level of infection. Children living in semi-urban areas have higher anti-PfA-M1 antibody titers (0·14 ± 0·02 AU) than those living in urban areas (0·08 ± 0·02 AU, P = 0·03), and their antibody titers increase with age (P < 0·0001). Moreover, anti-PfA-M1 antibody titers decrease in children with hyperparasitemia (0·027 ± 0·055 AU) but they remain high in children with low parasite density (0·21 ± 0·034 AU, P = 0·034). In conclusion, our results suggest that malaria-specific PfA-M1 antibodies may play an important role in the immune response of the host against P. falciparum in Gabonese children. Further studies on the role of PfA-M1 during anemia are needed.
journal_name
Clin Exp Immunoljournal_title
Clinical and experimental immunologyauthors
Oyegue-Liabagui SL,Imboumy-Limoukou RK,Kouna CL,Bangueboussa F,Schmitt M,Florent I,Lekana-Douki JBdoi
10.1111/cei.13425subject
Has Abstractpub_date
2020-06-01 00:00:00pages
287-298issue
3eissn
0009-9104issn
1365-2249journal_volume
200pub_type
临床试验,杂志文章,多中心研究abstract：:We have studied the effect of the probiotic strain Lactobacillus plantarum 299v on the immune functions of gnotobiotic rats. One group of germ-free rats was colonized with the type 1-fimbriated Escherichia coli O6:K13:H1 and another group with the same E. coli strain together with L. plantarum 299v. One and 5 weeks af...
journal_title：Clinical and experimental immunology
pub_type： 杂志文章
doi：10.1046/j.1365-2249.1999.00891.x
更新日期：1999-05-01 00:00:00
abstract：:The risk of premature death is high in haemodialysis (HD) patients. Antibodies against cardiolipin (anti-CL) are thrombogenic in diseases such as systemic lupus erythematosus (SLE). CL is easily oxidized (Ox) and plays a role in apoptosis. In this work we studied immunoglobulin (Ig)M anti-CL and anti-OxCL in HD-patien...
journal_title：Clinical and experimental immunology
pub_type： 杂志文章
doi：10.1111/cei.12181
更新日期：2013-12-01 00:00:00
abstract：:It has been postulated that IgA nephropathy (IgAGN) is caused by deposition within the glomerular mesangium of IgA polymers and IgA containing immune complexes which are overproduced in response to antigens presented at mucosal surfaces. To test this, the concentrations of specific antibodies to capsular polysaccharid...
journal_title：Clinical and experimental immunology
pub_type： 杂志文章
doi：
更新日期：1987-01-01 00:00:00
abstract：:It has been demonstrated immunohistologically using cryostat sections that the lectins PHA and Con A bind to human placentae. Both lectins stain trophoblastic basement membrane (TBM), perivascular tissue and stroma. No staining of trophoblasts was observed. It has been shown by blocking experiments that the lectin bin...
journal_title：Clinical and experimental immunology
pub_type： 杂志文章
doi：
更新日期：1976-06-01 00:00:00
abstract：:Autoantibodies directed against cytoplasmic antigens of neutrophils (ANCA), especially those with specificity for proteinase 3 (PR-3) and myeloperoxidase, are valuable markers for differential diagnosis and monitoring of disease activity in Wegener's granulomatosis (WG) and other vasculitides. Till now, several concep...
journal_title：Clinical and experimental immunology
pub_type： 杂志文章
doi：10.1111/j.1365-2249.1994.tb06110.x
更新日期：1994-09-01 00:00:00
abstract：:Complement induces mixed aggregation of murine spleen cells bearing C3 receptors. In the present studies, we show with immunofluorescent techniques that these aggregates are formed by T and B lymphocytes and myeloid cells, B cells constituting the predominant component in normal mice. There are striking changes in the...
journal_title：Clinical and experimental immunology
pub_type： 杂志文章
doi：
更新日期：1975-07-01 00:00:00
abstract：:A full-length cDNA coding a human beta 2-glycoprotein I (beta 2-GPI) was introduced into the baculovirus genome to construct a recombinant baculovirus. Spodoptera frugiperda (Sf9) cells were infected with the recombinant baculovirus. A protein (mol. wt 43,000) reactive with anti-beta 2-GPI antisera was produced in the...
journal_title：Clinical and experimental immunology
pub_type： 杂志文章
doi：10.1111/j.1365-2249.1993.tb06491.x
更新日期：1993-07-01 00:00:00
abstract：:During routine immunofluorescence studies of the serum of a patient with Sjögren's syndrome and lymphoma we detected antibodies giving a cytoplasmic pattern which did not correspond to previously described patterns found for autoantibodies. Using different cells and tissues as substrates for indirect immunofluorescenc...
journal_title：Clinical and experimental immunology
pub_type： 杂志文章
doi：
更新日期：1982-09-01 00:00:00
abstract：:Ulcerative colitis (UC) and Crohn's disease (CD) are considered to be immunologically mediated disorders that share certain features with murine models of colitis. Whether any of these models are physiologically relevant to the human condition remains controversial. The hypothesis is that increased amounts of antibodi...
journal_title：Clinical and experimental immunology
pub_type： 杂志文章
doi：10.1111/j.1365-2249.2008.03802.x
更新日期：2009-01-01 00:00:00
abstract：:An expanded T cell subpopulation (CD8+ Leu-7+) has previously been reported in the peripheral blood of patients with Crohn's disease. This subpopulation of T cells was associated with a 'covert suppressor' function, particularly in patients with mild/early Crohn's disease, suppressing immunoglobulin production in vitr...
journal_title：Clinical and experimental immunology
pub_type： 杂志文章
doi：10.1111/j.1365-2249.1990.tb03298.x
更新日期：1990-06-01 00:00:00
abstract：:Natural killer (NK) cells mediate host defense against infections and are regulated by interleukin 2 (IL-2) and other factors. We studied NK cell function in burn patients using a 51Cr release assay with K562 target cells. We found that peripheral blood lymphocytes from burn patients had depressed NK activity (target ...
journal_title：Clinical and experimental immunology
pub_type： 临床试验,杂志文章,随机对照试验
doi：
更新日期：1988-01-01 00:00:00
abstract：:Studies in experimental animals suggest that antibody responses to certain polysaccharide antigens may be restricted in IgG subclass distribution. To determine if human antibodies to pneumococcal polysaccharides are similarly restricted we measured the IgG subclass specific response to immunization with purified polyv...
journal_title：Clinical and experimental immunology
pub_type： 杂志文章
doi：
更新日期：1986-01-01 00:00:00
abstract：:Chronic obstructive pulmonary disease (COPD) is characterized by an abnormal regulatory T cell (T(reg)) response and increases in T helper type 1 (Th1) and Th17 cell responses. It is unclear if dysregulation of microRNAs (miRNA) within T(reg) cells contributes to the abnormal inflammatory response in COPD. In this stu...
journal_title：Clinical and experimental immunology
pub_type： 杂志文章
doi：10.1111/cei.12325
更新日期：2014-07-01 00:00:00
abstract：:Myasthenia gravis (MG) is a debilitating and potentially fatal neuromuscular disease characterized by the generation of autoantibodies reactive with nicotinic acetylcholine receptors (AChR) that cause loss of AChR from the neuromuscular endplate with resultant failure of neuromuscular transmission. A role for compleme...
journal_title：Clinical and experimental immunology
pub_type： 杂志文章
doi：10.1111/j.1365-2249.2006.03198.x
更新日期：2006-11-01 00:00:00
abstract：:The aim of the study was to test whether normal rat epiphyseal chondrocytes react with monoclonal antibodies (MoAbs) detecting different markers of lymphoid cells. For this purpose, isolated chondrocyte and, for comparison, splenocyte cytosmears were exposed to a battery of different MoAbs followed by indirect immunop...
journal_title：Clinical and experimental immunology
pub_type： 杂志文章
doi：
更新日期：1989-03-01 00:00:00
abstract：:Autoantigens in canine autoimmune haemolytic anaemia (AIHA) were identified by immunoprecipitation using autoantibody eluted from the erythrocytes of affected dogs. At least three patterns of precipitated antigen were identified in six cases of AIHA. The most commonly precipitated antigen pattern was a combination of ...
journal_title：Clinical and experimental immunology
pub_type： 杂志文章
doi：10.1111/j.1365-2249.1991.tb05678.x
更新日期：1991-07-01 00:00:00
abstract：:During pathogenesis of diabetes, pancreatic islets are exposed to high levels of cytokines and other inflammatory mediators that induce deterioration of insulin-producing beta cells. Macrophage migration inhibitory factor (MIF) plays a key role in the onset and development of several immunoinflammatory diseases and al...
journal_title：Clinical and experimental immunology
pub_type： 杂志文章
doi：10.1111/j.1365-2249.2012.04607.x
更新日期：2012-08-01 00:00:00
abstract：:Increased levels of 3% PEG precipitable circulating immune complexes (CIC) were found in healthy homosexual men, in homosexual patients with the acquired immune deficiency syndrome (AIDS), and in the AIDS related lymphadenopathy syndrome (LAS). The degree of CIC elevation increases from healthy homosexual men to LAS a...
journal_title：Clinical and experimental immunology
pub_type： 杂志文章
doi：
更新日期：1985-02-01 00:00:00
abstract：:Supernatants of both CD4+ and CD8+ alloreactive T cell clones induced IgM, IgG and IgA synthesis by peripheral blood lymphocytes (PBL) of healthy donors in vitro. These supernatants were also tested on their capacity to induce immunoglobulin production by PBL of four patients with CVI and one patient with CVI and thym...
journal_title：Clinical and experimental immunology
pub_type： 杂志文章
doi：
更新日期：1989-12-01 00:00:00
abstract：:A phenotypic and functional analysis of the circulating natural killer (NK) cell population was carried out in a series of patients with hairy cell leukaemia (HCL). The overall mean NK activity of both the mononuclear and T cell fractions was reduced compared to that of normal controls (466 lytic units (lu) v 573 lu a...
journal_title：Clinical and experimental immunology
pub_type： 杂志文章
doi：
更新日期：1986-05-01 00:00:00
abstract：:Complement activation with formation of biologically potent mediators like C5a and the terminal C5b-9 complex (TCC) contributes essentially to development of inflammation and tissue damage in a number of autoimmune and inflammatory conditions. A particular role for complement in the ischaemia/reperfusion injury of the...
journal_title：Clinical and experimental immunology
pub_type： 杂志文章
doi：10.1111/j.1365-2249.2004.02627.x
更新日期：2004-12-01 00:00:00
abstract：:IgE rheumatoid factor activity was found to be significantly elevated (P less than 0.01) using an ELISA assay when paired synovial fluid and sera from 13 patients with active RA were compared to ten control samples. Synovial fluid IgE RF activity was higher than predicted by diffusion alone in 7/11 (64%) of the RA syn...
journal_title：Clinical and experimental immunology
pub_type： 杂志文章
doi：
更新日期：1988-02-01 00:00:00
abstract：:The effect of administration of 0-2 mg of epinephrine (Parke-Davis) on circulatory lymphocytes was investigated in fifteen normal subjects. Blood samples were taken prior to, 10 and 20 min after, subcutaneous injections. Thymus-derived (T) cells were assayed by sheep red blood cell rosettes, bone marrow-derived (B) ce...
journal_title：Clinical and experimental immunology
pub_type： 杂志文章
doi：
更新日期：1976-09-01 00:00:00
abstract：:The interaction of cationic proteins with IgG, IgA and IgM were investigated by solid phase radioimmunoassay. All these immunoglobulins showed avid binding, IgM giving the strongest reaction, followed by IgA and then IgG. Fc fragments of IgG gave binding, but F(ab')2 fragments from the three main Ig classes did not, s...
journal_title：Clinical and experimental immunology
pub_type： 杂志文章
doi：
更新日期：1987-05-01 00:00:00
abstract：:Rheumatoid arthritis (RA), seronegative spondyloarthropathy (SA) and osteoarthritis (OA) patients receiving no steroid or disease-modifying therapy have been monitored, along with healthy controls, for their prevailing level of Epstein-Barr virus (EBV) infection using four independent indices of the EBV-host balance, ...
journal_title：Clinical and experimental immunology
pub_type： 杂志文章
doi：
更新日期：1986-05-01 00:00:00
abstract：:Commensal enteric bacteria stimulate innate immune cells and increase numbers of lamina propria and mesenteric lymph node (MLN) T and B lymphocytes. However, the influence of luminal bacteria on acquired immune function is not understood fully. We investigated the effects of intestinal bacterial colonization on T cell...
journal_title：Clinical and experimental immunology
pub_type： 杂志文章
doi：10.1111/j.1365-2249.2006.03019.x
更新日期：2006-03-01 00:00:00
abstract：:Transforming growth factor-beta (TGF-beta) and prostaglandins (PG) regulate the cell-mediated immune response, so it has been proposed that they affect the progression of pulmonary tuberculosis. Here we report that the administration of soluble betaglycan, a potent TGF-beta antagonist, and niflumic acid, a PG synthesi...
journal_title：Clinical and experimental immunology
pub_type： 杂志文章
doi：10.1111/j.1365-2249.2006.03049.x
更新日期：2006-05-01 00:00:00
abstract：:Recently we reported the first known incidence of antibodies possessing catalytic sialidase activity (sialidase abzymes) in the serum of patients with multiple myeloma and systemic lupus erythematosus (SLE). These antibodies desialylate biomolecules, such as glycoproteins, gangliosides and red blood cells. Desialylati...
journal_title：Clinical and experimental immunology
pub_type： 杂志文章
doi：10.1111/cei.12312
更新日期：2015-01-01 00:00:00
abstract：:Membranous nephropathy (MN), the leading cause of nephrotic syndrome in adults, is characterized by the deposition of subepithelial immune deposits that consist mainly of immunoglobulin (Ig)G and complement. Most of the cases are primary or idiopathic (iMN), while only approximately 25% of the cases are secondary to s...
journal_title：Clinical and experimental immunology
pub_type： 杂志文章,评审
doi：10.1111/cei.12729
更新日期：2016-02-01 00:00:00
abstract：:The specific response of human peripheral blood lymphocyte cultures to TNP-polyacrylamide was suppressed by the addition of concanavalin A (Con A). A dose of Con A (0.5 microgram/ml) could be selected, which induced a reproducible but incomplete suppression independent of the magnitude of the anti-TNP response. Con A-...
journal_title：Clinical and experimental immunology
pub_type： 杂志文章
doi：
更新日期：1979-10-01 00:00:00
