Abstract：
:Monoclonal antibodies of the Orthoclone series were used to identify total T lymphocytes (OKT3) and their helper-inducer (OKT4) and cytotoxic-suppressor (OKT8) subsets in 25 patients with chronic Chagas' disease and 25 healthy controls. No significant difference in the number of total T cells (OKT3+) circulating in the peripheral blood of patients and controls was found. However, in contrast to normal subjects, chagasic patients show quantitative alterations in both helper (OKT4+) and suppressor (OKT8+) T cell subsets. The chagasic patients have abnormal helper/suppressor ratios, with low and high values scattered around the mean. Surprisingly, high ratios were found within females while almost all males have low ratio values. These findings suggest that the putative immunoregulatory disfunctions in patients with chronic chagasic cardiomyopathy may involve both helper and suppressor T cell subsets.
journal_name
Immunol Lettjournal_title
Immunology lettersauthors
Gattass CR,Albanesi Fo FM,Barcinski MAdoi
10.1016/0165-2478(84)90011-7subject
Has Abstractpub_date
1984-01-01 00:00:00pages
289-92issue
5eissn
0165-2478issn
1879-0542pii
0165-2478(84)90011-7journal_volume
8pub_type
杂志文章abstract：:To explore the genetic association of single nucleotide polymorphisms (SNPs) in the coding region of the NOTCH4, exon 3 C+1297T and exon 5 A+3063G, in a case-control analysis of 58 rheumatoid arthritis (RA) and 98 alopecia areata (AA) and 100 ethnically matched healthy subjects. NOTCH4 polymorphisms were genotyped by ...
journal_title：Immunology letters
pub_type： 杂志文章
doi：10.1016/j.imlet.2013.01.002
更新日期：2013-02-01 00:00:00
abstract：:In this study, we examined the cytokine production by human peripheral blood mononuclear cells (PBM) from recipients of orthotopic liver transplants which had been stimulated by donor-specific alloantigen. Levels of interleukin (IL)-2, IL-4, interferon (IFN)-gamma, IL-10 and transforming growth factor (TGF)-beta produ...
journal_title：Immunology letters
pub_type： 杂志文章
doi：10.1016/s0165-2478(98)00061-3
更新日期：1998-09-01 00:00:00
abstract：:Clone C19 derived from a rat bladder cancer cell line BC31ad constitutively released cytotoxic factor RCF. The serum-free C19-conditioned medium was partially purified by DEAE-Sephacel, Sephacryl S-200 and MonoQ-FPLC chromatographies to the specific activity of 6.4 x 10(6) U/mg protein (LM assay). RCF was a 17-kDa pro...
journal_title：Immunology letters
pub_type： 杂志文章
doi：10.1016/0165-2478(94)90051-5
更新日期：1994-06-01 00:00:00
abstract：:A rapid, sensitive and simple method is provided for detecting Bence-Jones proteins in unconcentrated urine by electrosyneresis. This is based on the fact that the free light-chains, similar to the intact immunoglobulin molecules, form complexes with albumin under the effect of glutaraldehyde. Consequently, the origin...
journal_title：Immunology letters
pub_type： 杂志文章
doi：10.1016/0165-2478(83)90005-6
更新日期：1983-04-01 00:00:00
abstract：:T cell specific, B cell specific and Ia specific polyclonal antisera, as well as monoclonal antibodies, were employed to characterize cells involved in regulation of T cells, proliferating upon stimulation with concanavalin A or phytohaemagglutinin. Evidence for Ia+ accessory cells was obtained and the constellation o...
journal_title：Immunology letters
pub_type： 杂志文章
doi：10.1016/0165-2478(86)90127-6
更新日期：1986-08-01 00:00:00
abstract：:Even though IgA is considered to play an important role in immunity, surprisingly little is known about the presence of IgA Fc receptor (Fc alpha R)-expressing effector cells in tissues. Difficulties in obtaining human tissue macrophages, led us to study peritoneal macrophages in a human Fc alpha RI transgenic (Tg) mo...
journal_title：Immunology letters
pub_type： 杂志文章
doi：10.1016/s0165-2478(99)00034-6
更新日期：1999-05-03 00:00:00
abstract：:Fibrous plaques and intimal thickenings of 5 femoral and 5 iliac human arteries obtained at surgery were processed for indirect and double-labeling immunoelectron microscopy using an affinity purified rabbit IgG anti-C5b-9 neoantigen and the EBM 11 monoclonal antibody anti-human macrophages. The C5b-9 complexes were l...
journal_title：Immunology letters
pub_type： 杂志文章
doi：10.1016/0165-2478(89)90039-4
更新日期：1989-03-01 00:00:00
abstract：:We have examined whether the interaction of peptide-loaded MHC molecules on the surface of B-cells with antigen-specific T-cell receptors (TCRs) enhances Ig secretion in the presence of other antigen-independent interactions in vitro. B-cells specific for region 25-40 of beta-lactoglobulin (beta-LG) were stimulated in...
journal_title：Immunology letters
pub_type： 杂志文章
doi：10.1016/s0165-2478(98)00002-9
更新日期：1998-04-01 00:00:00
abstract：:The human immune system is a complex machinery involving numerous proteins. Proteins located at the cell surface of immune cells are of particular relevance due not only to their participation in the network of interactions that regulate the immune response but also to their potential as excellent targets for diagnost...
journal_title：Immunology letters
pub_type： 杂志文章
doi：10.1016/j.imlet.2010.09.016
更新日期：2011-01-30 00:00:00
abstract：:Cell surface molecules are present on several lymphocyte subsets and are differentially expressed during lymphocyte development and activation. Human Leukocyte Differentiation Antigen (HLDA) Workshops have played an essential role in the identification and characterization of the molecules found in the membrane of hem...
journal_title：Immunology letters
pub_type： 杂志文章
doi：10.1016/j.imlet.2010.10.009
更新日期：2011-01-30 00:00:00
abstract：:Common γ chain (γC) cytokines, namely IL-2, IL-4, IL-7, IL-9, IL-15, and IL-21 are important for the proliferation, differentiation, and survival of lymphocytes that display antitumor activity, thus stimulating considerable interest for the use of cytokines in cancer immunotherapy. In this review, we will focus on the...
journal_title：Immunology letters
pub_type： 杂志文章,评审
doi：10.1016/j.imlet.2015.11.007
更新日期：2016-01-01 00:00:00
abstract：:Multiple antigen peptides (MAP), consisting of a number of peptide copies synthesized on a branching lysyl core, offer a novel approach for rendering small peptides immunoreactive in solid-phase immunoassays. An octameric MAP, carrying 6 repeats of the sequence -N-A-A-G-, tandem repeated in the immunodominant region o...
journal_title：Immunology letters
pub_type： 杂志文章
doi：10.1016/0165-2478(91)90092-o
更新日期：1991-09-01 00:00:00
abstract：:The first step in the clearance of apoptotic cells is chemotactic migration of macrophages towards the apoptotic cells guided by find-me signals provided by the dying cells. Upon sensing the chemotactic signals, macrophages release ATP. ATP is then degraded to ADP, AMP and adenosine to trigger purinergic receptors con...
journal_title：Immunology letters
pub_type： 杂志文章
doi：10.1016/j.imlet.2017.02.002
更新日期：2017-03-01 00:00:00
abstract：:Idiopathic thrombocytopenic purpura (ITP) is an acquired autoimmune disorder. Both impaired platelet production and T cell-mediated effects play a role in ITP thrombocytopenia. A Th1 polarization of the immune response, up-regulation of Th17 cells and decreased number of Treg cells have been demonstrated in ITP patien...
journal_title：Immunology letters
pub_type： 杂志文章
doi：10.1016/j.imlet.2013.08.006
更新日期：2013-07-01 00:00:00
abstract：:The physiologically occurring tetrapeptide, tuftsin (Thr-Lys-Pro-Arg), was examined for its effects on guinea pig peritoneal macrophages. Adherent macrophages (møo) were exposed to tuftsin at concentrations ranging from 10(8) to 10(6) M, and the release of oxygen radicals and the arachidonic acid cyclo-oxygenation pro...
journal_title：Immunology letters
pub_type： 杂志文章
doi：10.1016/0165-2478(83)90021-4
更新日期：1983-01-01 00:00:00
abstract：:The expression of antigen presenting MHC class I molecules can be enhanced through cytokines, e.g. upon infection with bacteria or viruses, either directly by enhancing class I gene transcription or by increasing the amounts of accessory proteins of the loading complex. Tapasin plays a significant role in the peptide ...
journal_title：Immunology letters
pub_type： 杂志文章
doi：10.1016/s0165-2478(02)00104-9
更新日期：2002-10-01 00:00:00
abstract：:Innate lymphoid cells (ILC) have only recently been recognized as a separate entity of the lymphoid lineage. Their subpopulations share common characteristics in terms of early development and major transcriptional circuitry with their related cousins of the T cell world. It is currently hypothesized that ILCs constit...
journal_title：Immunology letters
pub_type： 杂志文章,评审
doi：10.1016/j.imlet.2016.07.004
更新日期：2016-11-01 00:00:00
abstract：:Immunoselection screening methods were developed for the detection of the free heavy chain determinants of biological fluids. The optimal sensitivity range of the electrosyneresis and electroimmunoassay type methods lies between 400 ng and 2 micrograms/ml and between 3 micrograms and 1 mg/ml for immunoglobulins. The s...
journal_title：Immunology letters
pub_type： 杂志文章
doi：10.1016/0165-2478(84)90080-4
更新日期：1984-01-01 00:00:00
abstract：:Coenzyme Q10 (CoQ10) is a lipid-soluble antioxidant synthesized in human body. This enzyme promotes immune system function and can be used as a dietary supplement. Rheumatoid arthritis (RA) is an autoimmune disease leading to chronic joint inflammation. RA results in severe destruction of cartilage and disability. Thi...
journal_title：Immunology letters
pub_type： 杂志文章
doi：10.1016/j.imlet.2015.05.012
更新日期：2015-08-01 00:00:00
abstract：:When IL-4 mRNA was distinguished from mRNA encoding its antagonist, the splice variant IL-4delta2, it was found to correlate directly with expression of TLR2 in fresh peripheral blood mononuclear cells (PBMCs) from normal donors (p=0.0013). Similarly IL-4 mRNA was high when TLR2 mRNA was abundant compared to levels of...
journal_title：Immunology letters
pub_type： 杂志文章
doi：10.1016/j.imlet.2006.06.001
更新日期：2006-08-15 00:00:00
abstract：:Naive CD4 T cells differentiate into functionally distinct T helper (Th) cells subsets or into regulatory T (Treg) cells in response to the cytokine milieu in which they encounter antigen. A recurring theme in post-thymic CD4 T cell differentiation is the cross-regulation of lineage choice by cytokines and transcripti...
journal_title：Immunology letters
pub_type： 杂志文章
doi：10.1016/j.imlet.2008.11.001
更新日期：2009-01-29 00:00:00
abstract：:Neuraminidases act as a virulence factors for several pathogens that invade the human body through Peyer's patch M-cells. Because of the structural similarity of Aleuria aurantia lectin (AAL) to neuraminidases, we hypothesized that AAL might also target human M-cells. In an in vitro human M-cell co-culture model signi...
journal_title：Immunology letters
pub_type： 杂志文章
doi：10.1016/j.imlet.2005.03.020
更新日期：2005-09-15 00:00:00
abstract：:A monoclonal human rheumatoid factor (RF-AN) reactive with human Fc gamma is shown to recognise a discontinuous epitope dependent on the presence of histidine (His) at residue 435. RF-AN is not reactive with IgG1 paraproteins having C gamma 2 or C gamma 3 domain deletions or IgG3m (5) or Ig3m (21) proteins having argi...
journal_title：Immunology letters
pub_type： 杂志文章
doi：10.1016/0165-2478(84)90042-7
更新日期：1984-01-01 00:00:00
abstract：:There is great interest in the antibodies-to-DNA transformation, since this change is characteristic of autoimmune diseases and contributes to its pathology. After immunization and fusions, 14 hybridomas bearing DNA-hydrolysis activity against pUC19 plasmid DNA were obtained. Genes coding for V(H) and V(L) regions of ...
journal_title：Immunology letters
pub_type： 杂志文章
doi：10.1016/j.imlet.2010.01.004
更新日期：2010-03-10 00:00:00
abstract：:Peanut agglutinin (PNA), a D-galactose specific lectin, agglutinated 10-18% of lymphocytes isolated from tonsils of 3- to 6-yr-old children. PNA+ cells were found to be mainly B lymphocytes showing a 9.6 times higher specific activity of DNA polymerase alpha compared to the PNA- cells. The specific activity of deoxycy...
journal_title：Immunology letters
pub_type： 杂志文章
doi：10.1016/0165-2478(87)90040-x
更新日期：1987-06-01 00:00:00
abstract：:Epidermal growth factor receptor (EGFR) is an attractive target for the treatment of epithelial cancers. However, EGFR antagonists have low clinical response rates and frequently induce resistance mainly caused by the hypermutation of the extracellular and intracellular domains and the heterodimerization of EGFR. Dime...
journal_title：Immunology letters
pub_type： 杂志文章
doi：10.1016/j.imlet.2016.10.011
更新日期：2016-12-01 00:00:00
abstract：:Studies on natural cytotoxicity of peripheral blood monocytes were conducted in patients with acute viral hepatitis B, patients with chronic aggressive hepatitis etiopathogenically linked to viral hepatitis B, and in asymptomatic carriers of HBs antigen. In the majority of cases of viral hepatitis in the acute stage o...
journal_title：Immunology letters
pub_type： 杂志文章
doi：10.1016/0165-2478(85)90016-1
更新日期：1985-01-01 00:00:00
abstract：:In the present study, short tandem repeats (STR) polymorphism within the first intron of IFN-gamma gene in connection with HLA-DRB1*03 specificities was analysed in 43 sarcoidosis patients, 14 of which presented with Löfgren's syndrome (LS). Four out of 5 known IFN-gamma alleles with 12-15 CA repeats, respectively wer...
journal_title：Immunology letters
pub_type： 杂志文章
doi：10.1016/j.imlet.2003.11.005
更新日期：2004-02-15 00:00:00
abstract：:In a previous study we have shown that, in response to electrical stimulation, there is a substantial release of noradrenaline (NA) from the sympathetic nerve terminals of the rat thymus which is of axonal, vesicular origin. In the present study neurochemical evidence was obtained that the release of NA is subject to ...
journal_title：Immunology letters
pub_type： 杂志文章
doi：10.1016/0165-2478(95)00085-j
更新日期：1995-07-01 00:00:00
abstract：:CD8+CD28- regulatory T cells (Tregs) play important roles in chronic viral infections. Programmed death 1 (PD-1) is highly expressed on hepatitis C virus (HCV)-specific CTLs. However, little is known regarding the role of CD8+CD28-PD1+ T cells in hepatitis C. Herein, we found that the frequency of CD8+CD28-PD1+, but n...
journal_title：Immunology letters
pub_type： 杂志文章
doi：10.1016/j.imlet.2018.07.008
更新日期：2018-10-01 00:00:00
