Abstract:
:Nitric oxide (NO) is formed constitutively in neurons by the constitutive enzyme NO synthase (cNOS) and acts as a neurotransmitter. It has already been shown that cNOS-containing neurons are identical to neurons staining for NADPH diaphorase and vice versa. Effector cells of the immune response produce high NO levels after appropriate stimulation and this NO is formed by inducible NO synthase (iNOS). The NO produced by macrophages is considered an important effector molecule of antimicrobial host defence. We have applied NADPH diaphorase staining for the detection of NO producing cells in situ during infection with an intracellular pathogen. Macrophages which produce NO in vitro are stained for NADPH diaphorase. Expression of iNOS mRNA and macrophage NADPH diaphorase staining was inhibited by iNOS-specific antisense oligonucleotides. These data suggest coincidental similarity between NADPH diaphorase activity and NO production by macrophages. Cells staining for NADPH diaphorase were identified in cryostat frozen sections of livers from mice infected with the intracellular pathogen, Listeria monocytogenes, and co-localized with cells labelled by MAC-1 mAbs. The purple-blue reaction product of NADPH diaphorase staining was visible in discrete granulomatous lesions but was absent from the liver parenchyma. Our results provide direct evidence for localized and transient participation of NO in antimicrobial immunity in the infected organ. This restriction may focus NO production to lesions, leaving unrelated tissue sites unaffected.
journal_name
Int Immunoljournal_title
International immunologyauthors
Flesch IE,Hess JH,Kaufmann SHdoi
10.1093/intimm/6.11.1751subject
Has Abstractpub_date
1994-11-01 00:00:00pages
1751-7issue
11eissn
0953-8178issn
1460-2377journal_volume
6pub_type
杂志文章abstract::We have previously cloned the murine homolog of cDNA for the human myelomonocytic differentiation antigen, CD14. We synthesized three hydrophilic peptides derived from the predicted amino acid sequence of murine CD14 (mCD14), designated MS7.1, MS7.2, and MS7.3, respectively, and raised antisera against them. Each anti...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/3.2.205
更新日期:1991-02-01 00:00:00
abstract::It has been demonstrated that in vivo T cell priming requires CD154-CD40 interaction, which is suggested to be critical in the induction of co-stimulatory activities on antigen-presenting cells (APC). In the current study, we demonstrate that in vivo administration of a high dose of a superantigen, staphylococcal ente...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/dxg080
更新日期:2003-07-01 00:00:00
abstract::A subclone (160b) of the human B cell (Karpas 160) was shown to produce a novel cytotoxic lymphokine [Factor 2 (F2)] in addition to tumour necrosis factor alpha (TNF-alpha) and beta (TNF-beta). F2 was found to have selective toxicity to numerous human tumour cell lines, particularly the erythroleukaemic cell line K562...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/4.4.519
更新日期:1992-04-01 00:00:00
abstract::A Plasmodium falciparum schizont lysate has been previously described as being a powerful inducer of proliferation for human peripheral T lymphocytes. In this report we study the phenotype of cycling T cells from unexposed donors and examine how the P. falciparum lysate compares with the conventional T cell mitogen ph...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/4.3.361
更新日期:1992-03-01 00:00:00
abstract::We have determined the origin and cell surface phenotype of B cells producing antibody in response to immunization with the non-self TI-2 antigen polyvinyl pyrrolidinone (PVP). We report that the responding cells are derived from precursors in adult bone marrow and display the phenotype characteristic of B-1 cells. By...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/8.4.533
更新日期:1996-04-01 00:00:00
abstract::Neutrophils and lymphocytes are recruited to sites of inflammation and require the adhesion molecule L-selectin (CD62L) for adherence to endothelial cells. Nucleotides released from activated or dying cells at sites of inflammation can mediate signaling through purinergic receptor family II, resulting in CD62L sheddin...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/dxl051
更新日期:2006-07-01 00:00:00
abstract::Naturally occurring CD4(+)CD25(+) regulatory T cells (nT(R)) comprise a separate lineage of T cells that are essential for maintaining immunological tolerance to self. Here we demonstrate that the level of phosphorylation of the TCR zeta-chain is approximately 1.5- to 4-fold higher in nT(R) as compared with CD4(+)CD25...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/dxm021
更新日期:2007-04-01 00:00:00
abstract::HLA-B*0702 transgenic mice (expressing a chimeric heavy chain with a murine alpha 3 domain: HLA-B7(m alpha 3)) in which the H-2K(b) and H-2D(b) class I-a (Cl I-a(-/-)) genes have been inactivated were compared with H-2K(b)D(b) Cl I-a(+/+) positive controls. Expression of the HLA-B7(m alpha 3) molecules resulted in a 3...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/dxg073
更新日期:2003-06-01 00:00:00
abstract::A novel system to study the effects of co-cross-linking CD23/FceRII and sIg on murine B lymphocytes utilizes a highly multivalent form of anti-Ig prepared by covalently linking anti-Ig antibodies to a DNP-dextran backbone. CD23-sIg co-cross-linking is accomplished by the addition of DNP-specific monoclonal IgE. Previo...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/9.8.1131
更新日期:1997-08-01 00:00:00
abstract::Under physiological conditions immune complexes (IC) are efficiently cleared from the circulation and meanwhile provide important feedback signals for the immune system via Fc gamma Rs and complement receptors. Dysregulation of these mechanisms have been implicated in conditions where IC concentrations reach pathologi...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/dxm132
更新日期:2008-02-01 00:00:00
abstract::The intestinal epithelium not only acts as the physical structure that separates the intestinal lumen from the body but also actively participates in intestinal barrier functions. In the past decade, significant progress has been made in the development of culture technologies to maintain intestinal epithelial cells (...
journal_title:International immunology
pub_type: 杂志文章,评审
doi:10.1093/intimm/dxy065
更新日期:2019-02-06 00:00:00
abstract::Two peptides based on the complementarity-determining regions (CDR) 1 and 3 (pCDR1 and pCDR3) of a murine monoclonal anti-DNA autoantibody that expresses the common idiotype 16/6Id were shown to down-regulate systemic lupus erythematosus (SLE)-associated T cell responses and to prevent the development of clinical symp...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/dxg026
更新日期:2003-02-01 00:00:00
abstract::The chicken represents the best-characterized animal model for B cell development in the so-called gut-associated lymphoid tissue (GALT) and the molecular processes leading to B cell receptor diversification in this species are well investigated. However, the mechanisms regulating B cell development and homeostasis in...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/dxl137
更新日期:2007-02-01 00:00:00
abstract::We have generated a high copy number transgenic mouse line in which expression of mouse IL-7 cDNA is under the control of the mouse MHC class II E alpha promoter. These mice were generated in order to see if IL-7 over-production in the thymus altered either thymocyte differentiation or the process of negative selectio...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/7.3.401
更新日期:1995-03-01 00:00:00
abstract::In the final analysis, the self (S)-non-self (NS) discrimination is regulated by the sufficiency or insufficiency of effector T(h) (eT(h)) specific for the given antigen. We have described a model (Th genesis) for the origin of eT(h) based on an antigen-independent pathway from initial state T(h) (iT(h)) to eT(h), and...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/dxg059
更新日期:2003-05-01 00:00:00
abstract::Chronic viral infections are often characterized by CD8 T-cell responses with poor cytokine secretion potential and limited expansion of the CD8 T-cell pool, collectively referred to as CD8 T-cell exhaustion. Exhaustion of lymphocytic choriomeningitis virus (LCMV)-specific CD8 T cells was shown to be partially regulat...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/dxp107
更新日期:2010-01-01 00:00:00
abstract::Exosomes are small vesicles (60-100 nm) secreted by various cell types upon the fusion of endosomal compartments with the plasma membrane. Exosomes from antigen-presenting cells (APC), such as B lymphocytes and dendritic cells (DC), bear MHC class II molecules. In addition, the injection of DC-derived exosomes was rep...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/dxf048
更新日期:2002-07-01 00:00:00
abstract::Our aim was to investigate the quantitative relationship between inoculation doses and physiological responses to infection by Salmonella enterica serovar Enteritidis. Rats were orally inoculated with 10-10(9) c.f.u. of S. Enteritidis and monitored for 6 days. Neutrophil and delayed-type hypersensitivity (DTH) respons...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/14.2.111
更新日期:2002-02-01 00:00:00
abstract::Long-term side effects may represent a relevant burden of antiretroviral treatment (ART) in HIV-infected patients with good CD4 immune reconstitution over extended time spans. CD4-guided treatment interruption (TI) has been evaluated to address this point and may result in a wide spectrum of time off ART in different ...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/dxq462
更新日期:2011-02-01 00:00:00
abstract::Non-obese diabetic mice spontaneously develop a type 1 diabetes. The entry of leukocytes in the islets of Langerhans was studied in untreated and in irradiated mice. FITC-labeled cells from spleen, lymph nodes or bone marrow of healthy or diabetic donors did home to the inflamed islets of unmanipulated recipients. B a...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/7.12.1905
更新日期:1995-12-01 00:00:00
abstract::Dendritic cells (DC) are highly potent activators of the immune response. The precise mechanisms that give rise to the DC phenotype are not known. To investigate the mechanisms that contribute to the generation of the DC phenotype, precursor DC were freshly isolated from human blood and allowed to mature in vitro. The...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/10.11.1713
更新日期:1998-11-01 00:00:00
abstract::The interleukin 2 receptor (IL-2R) is composed of at least two polypeptides--a 55 kd protein (the L chain, p55, or alpha chain) and a 75 kd protein (the H chain, p75 or beta chain). The high-affinity binding of IL-2 results in the formation of a ternary complex consisting of IL-2 and the L and H chains. We found that ...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/2.12.1167
更新日期:1990-01-01 00:00:00
abstract::To study the paracrine effect of IL-10 on autoimmune insulitis and diabetes, we produced IL-10 transgenic non-obese diabetic (NOD) mice (NOD-IL-10) in which murine IL-10 was expressed in pancreatic islet A cells under the control of a rat glucagon promoter without directly manipulating pancreatic islet B cells. Among ...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/6.12.1927
更新日期:1994-12-01 00:00:00
abstract::STAT6, NF-kappaB (p50) and C/EBPbeta transcription factors (TF) were examined with respect to CD23 regulation. Electrophoretic mobility shift assay (EMSA), competition and supershift analysis demonstrated that STAT6 binds the CD23a promoter but with a lower affinity than the consensus site. STAT6-/- mice were analyzed...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/10.10.1529
更新日期:1998-10-01 00:00:00
abstract::The anti-CD20 chimeric monoclonal antibody rituximab mediates cytotoxicity in malignant B cells via multiple mechanisms, including complement-dependent cytotoxicity (CDC), antibody-dependent cellular cytotoxicity (ADCC) and direct induction of apoptosis. To optimize treatment of non-Hodgkin's lymphoma, a fuller unders...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/dxs048
更新日期:2012-08-01 00:00:00
abstract::Auto-antibodies against heat shock proteins (HSPs) are frequently found in the sera of patients with rheumatic and other autoimmune diseases. However, it is unclear whether these auto-antibodies play a role in the pathophysiology and etiology of these diseases. We found that a murine anti-HSP60 mAb enhanced the produc...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/dxh399
更新日期:2006-04-01 00:00:00
abstract::P-selectin is a Ca(2+)-dependent lectin that participates in leukocyte adhesion to vascular endothelium and platelets. Myeloid cells and a subset of T lymphocytes express carbohydrate ligands at the cell surface. Previously, we suggested that heat stable antigen (HSA/mouse CD24), an extensively glycosylated cell surfa...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/7.10.1557
更新日期:1995-10-01 00:00:00
abstract::Metazoan species, from sponges to insects and mammals, possess successful defence systems against their pathogens and parasites. The evolutionary origins of these diverse systems are beginning to be more comprehensively investigated and mapped out. We have collected 1811 metazoan immunity genes from literature and gen...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/dxm109
更新日期:2007-12-01 00:00:00
abstract::Fas/APO-1 is a member of the tumor necrosis factor (TNF)/nerve growth factor receptor family. This cell surface protein, when associated with the Fas/APO-1 ligand or specific mAb, elicits an apoptotic response in susceptible cells via an oligomerization of its intracellular domains, termed the'death domains'. We have ...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/10.2.131
更新日期:1998-02-01 00:00:00
abstract::In this study, we analyzed peripheral blood CD4+CD8+ double-positive (DP) lymphocytes in adult cynomolgus monkeys (Macaca fascicularis). Forty of 55 monkeys had > 5% of the peripheral blood DP subpopulation (9.3 +/- 5.9%; mean +/- SD) in peripheral blood lymphocytes (PBL) in contrast to a low percentage of peripheral ...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/9.4.591
更新日期:1997-04-01 00:00:00