Abstract:
:Strategically positioned in peripheral tissues, immune sentinel cells sense microbes and/or their shed products through different types of pattern-recognition receptors. Upon secretion, pre-formed pro-inflammatory mediators activate the microvasculature, inducing endothelium/neutrophil adherence and impairing endothelium barrier function. As plasma proteins enter into peripheral tissues, short-lived proinflammatory peptides are rapidly generated by limited proteolysis of complement components and the kininogens (i.e. kinin-precursor proteins). While much emphasis has been placed on the studies of the vascular functions of kinins, their innate effector roles remain virtually unknown. A few years ago, we reported that exogenous bradykinin (BK) potently induces dendritic cell (DC) maturation, driving IL-12-dependent Th1 responses through the activation of G-protein-coupled BK B(2) receptors (B(2)R). The premise that immature DC might sense kinin-releasing pathogens through B(2)R was demonstrated in the subcutaneous mouse model of Trypanosoma cruzi infection. Analysis of the dynamics of parasite-evoked inflammation revealed that activation of TLR2/neutrophils drives the influx of plasma proteins, including kininogens, into peripheral tissues. Once associated to cell surfaces and/or extracellular matrices, the surface-bound kininogens are cleaved by T. cruzi cysteine proteases. Acting as short-lived 'danger' signals, kinins activate DC via B(2)R, converting them into Th1 inducers. Fine tuned control of the extravascular levels of these natural peptide adjuvants is exerted by kinin-degrading metallopeptidases, e.g. Angiotensin converting enzyme (ACE/CD143). In summary, the studies in the subcutaneous model of T. cruzi infection revealed that the peripheral levels of BK, a DC maturation signal, are controlled by TLR2/neutrophils and ACE, respectively characterized as positive and negative modulators of innate/adaptive immunity.
journal_name
Scand J Immunoljournal_title
Scandinavian journal of immunologyauthors
Scharfstein J,Schmitz V,Svensjö E,Granato A,Monteiro ACdoi
10.1111/j.1365-3083.2007.01983.xsubject
Has Abstractpub_date
2007-08-01 00:00:00pages
128-36issue
2-3eissn
0300-9475issn
1365-3083pii
SJI1983journal_volume
66pub_type
杂志文章,评审abstract::Granulomatous lymphomatosis is an Epstein-Barr virus (EBV)-driven B cell proliferation associated with an exuberant CD4(+) T cell reaction with usually histopathological pictures of angiocentrism. So far, the characteristics of CD4(+) T cells in granulomatous lymphomatosis and the mechanism leading to their expansion ...
journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
doi:10.1111/sji.12370
更新日期:2015-12-01 00:00:00
abstract::Discontinuous Percoll gradients have been used to obtain selected human peripheral blood T lymphocytes without having to resort to interactions with immune complexes in the fractionation of Tm, Tg and Ta cells. Here, we could show that Ta cells represent a heterogeneous population with no distinct density profile, in ...
journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3083.1982.tb00719.x
更新日期:1982-09-01 00:00:00
abstract::Leukoplakias (LPLs) are lesions in the oral mucosa that may develop into oral squamous cell carcinoma (OSCC). The objective of this study was to assess presence and distribution of dendritic Langerhans cells (LCs) and T cells in patients with LPLs with or without cell dysplasia and in oral squamous cell carcinoma (OSC...
journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3083.2012.02701.x
更新日期:2012-07-01 00:00:00
abstract::We investigated interferon (IFN) production by peripheral blood mononuclear cells from four patients with chronic OKT4 T-lymphocytic leukaemia and three patients with abnormal expansions of granular lymphocytes. No spontaneous production of IFN-gamma was found in supernatants of cultures from both patients and normal ...
journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3083.1985.tb01436.x
更新日期:1985-04-01 00:00:00
abstract::A clear correlation was observed between the presence of an Ia-like antigenic B-cell system Ly-Li, detected serologically, and three cellular immunological techniques: [1] mixed lymphocyte reaction (MLR) inhibition by an anti-Li antiserum; [2] level of restimulation of anti-Ly-Li in-vitro-primed lymphocytes; and [3] d...
journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3083.1977.tb02112.x
更新日期:1977-01-01 00:00:00
abstract::IgE levels in cord blood have been investigated as predictors of atopy, but no definitive findings have been made. Other factors, including cells and/or cytokines may serve as predictors of this disease. Cord blood and peripheral blood was obtained at birth and at 7 months of age, respectively, from children (n = 2) w...
journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3083.2008.02169.x
更新日期:2008-11-01 00:00:00
abstract::The induction of T-cell apoptosis is regulated in part by monocytes (CD14+ cells). Human peripheral blood monocytes inhibited the spontaneous cell death of activated T cells in vitro. The inhibition of T-cell apoptosis did not require autologous monocytes. Inhibition required direct contact with monocytes and was not ...
journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
doi:10.1046/j.1365-3083.1999.00629.x
更新日期:1999-11-01 00:00:00
abstract::The short-term incubation of rat thymocytes with 12-O-tetradecanoylphorbol-13-acetate (TPA) resulted in a significant increase in sialyltransferase (S-T) activity and a decrease in terminal deoxyribonucleotidyl transferase (TdT) activity. The ratio of peanut agglutinin (PNA)-positive cells and of TdT-positive cells in...
journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3083.1989.tb01148.x
更新日期:1989-04-01 00:00:00
abstract::Natural killer (NK) cells represent the first line of defence against viral infections but, in the case of hepatitis B virus (HBV), may also be involved in liver injury. We here compared NK-cell activity of 11 patients with acute HBV infection, either HIV-positive or HIV-negative, with that of 11 healthy subjects. One...
journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3083.2005.01659.x
更新日期:2005-09-01 00:00:00
abstract::The function of the Fc and C3 receptors on the free surface of normal and endotoxin activated mouse peritoneal macrophages seeded on glass bound antibody--antigen (AbAg) complexes or complement was examined. We found that the glass bound AbAg complexes interfered with attachment and internalization of particles recogn...
journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3083.1978.tb00422.x
更新日期:1978-01-01 00:00:00
abstract::Coeliac disease (CD) is a very common food-sensitive enteropathy, which is triggered by gluten ingestion and is mediated by CD4(+) T cells. In addition, alterations in the intestinal microbiota that is normally involved in the homeostasis of GALT (gut-associated lymphoid tissue) seem to play a role in CD. In accordanc...
journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3083.2011.02582.x
更新日期:2011-10-01 00:00:00
abstract::The major rheumatoid factor cross-reactive idiotype, which was defined by prototypic monoclonal IgM rheumatoid factors from Waldenstrom's macroglobulinaemia patient Wa, is present on 60% of all monoclonal IgM RF paraproteins. One-third of patients with juvenile rheumatoid arthritis (JRA), who are seronegative for clas...
journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3083.1991.tb01568.x
更新日期:1991-10-01 00:00:00
abstract::Our data on peripheral blood T cells from Motor neuron disease (MND) patients indicate major immunological disturbances linked to this disease. Both CD4+ and CD8+ T-cell subsets display an increased fraction of cells showing activation markers compared to controls, indicating an unusually high level of activity in bot...
journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
doi:10.1046/j.1365-3083.2001.00923.x
更新日期:2001-07-01 00:00:00
abstract::The mixed lymphocyte culture (MLC) response of lymphocytes from CBA mice against C3H cells was studied after injection of spleen cells from C3H mice or C3H hybrids. Intravenous infusion of C3H cells resulted in a strongly suppressed specific MLC response, but this was not the case when cells from H-2-incompatible hybr...
journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3083.1975.tb02619.x
更新日期:1975-01-01 00:00:00
abstract::Myasthenia gravis (MG) and its animal model experimental autoimmune MG (EAMG), are T-cell dependent, antibody-mediated autoimmune disorders. A dual altered peptide ligand (APL) composed of the tandemly arranged two single amino acids analogs of two myasthenogenic peptides, p195-212 and p259-271, was demonstrated to do...
journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3083.2007.01940.x
更新日期:2007-06-01 00:00:00
abstract::Central events in the host defence system and immune-mediated damage are tightly regulated by cell adhesion molecules. Sera from 28 human immunodeficiency virus (HIV)-1 infected children divided into groups according to disease severity, six seroreverting (SR) children and 25 healthy controls were studied to detect th...
journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
doi:10.1046/j.1365-3083.2000.00820.x
更新日期:2000-12-01 00:00:00
abstract::Phosphorothioate oligodeoxynucleotides (sODNs) can induce T-cell-independent polyclonal activation of human B cells by a mechanism that depends on both sequence and back-bone structure. Because matrix-bound as well as soluble sODNs are mitogenic, this stimulation may result from the engagement of surface receptor(s). ...
journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
doi:10.1046/j.1365-3083.2001.01004.x
更新日期:2001-12-01 00:00:00
abstract::After 3-5 days of in vitro culture, peritoneal cells from untreated C3H mice produce autoantibodies specific for autoantigens in the membranes of mouse erythrocytes. The autoantigens are exposed in vitro by treating mouse erythrocytes with the proteolytic enzyme bromelain. Limiting-dilution cell culture techniques wer...
journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3083.1984.tb01035.x
更新日期:1984-12-01 00:00:00
abstract::We have investigated the production of interleukin 2 (IL-2) by human T cells after their stimulation by phytohaemagglutinin (PHA). T cells isolated by rosetting with sheep erythrocytes produced high levels of IL-2. Further separation of rosette-forming cells, according to the expression of Fc receptors for IgG, showed...
journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3083.1981.tb00570.x
更新日期:1981-09-01 00:00:00
abstract::T cell immunoglobulin and mucin domain-3 (Tim-3), an immune checkpoint molecule, plays critical roles in maintaining innate immune homeostasis; however, the mechanisms underlying these roles remain to be determined. Here, we determined that Tim-3 controls glycolysis in macrophages and thus contributes to phenotype shi...
journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
doi:10.1111/sji.12981
更新日期:2021-02-01 00:00:00
abstract::The specificity of the Fcgamma receptors in normal spleen and liver and in malignant tissues was studied using hemadsorption to cryostat sections. Indicator cells (EA) were sheep erythrocytes (E) sensitized with rabbit IgG antibody (A). The binding of EA to sections of normal and malignant tissues was inhibited by poo...
journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3083.1976.tb03048.x
更新日期:1976-01-01 00:00:00
abstract::The natural tolerance to alpha-fetoprotein (AFP) was broken in rabbits by immunizations with purified AFP from different species and homologous AFP chemically modified by haptenation. Some of the rabbits were boostered with rabbit AFP. The highest titers were obtained with human AFP, which shows a strong cross-reactio...
journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3083.1976.tb00279.x
更新日期:1976-01-01 00:00:00
abstract::Ebola viruses (EBOVs) have been identified as an emerging threat in recent year as it causes severe haemorrhagic fever in human. Epitope-based vaccine design for EBOVs remains a top priority because a mere progress has been made in this regard. Another reason is the lack of antiviral drug and licensed vaccine although...
journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
doi:10.1111/sji.12302
更新日期:2015-07-01 00:00:00
abstract::MLC-T cells from two different donors were cultured after limiting dilution (0.3 cells/well) in medium containing T-cell growth factor. Clones showing lytic activity against K-562 in a preliminary screening were expanded and tested against various NK-sensitive target-cell lines (Chang, T-24, Daudi, and Molt-4) and phy...
journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3083.1983.tb00770.x
更新日期:1983-01-01 00:00:00
abstract::In the present study evidence is presented that SAA in serum complexes to a carrier protein with a molecular weight of 100,000-200,000 daltons, with mobility in the alpha-region on electrophoresis, and with a rather low normal serum concentration. The carrier protein is apparently not albumin. SAA isolated from the ca...
journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3083.1977.tb00379.x
更新日期:1977-01-01 00:00:00
abstract::Previous work from our laboratory demonstrated that a synthetic heptapeptide (Ch7: RGSDIAG), corresponding to a conserved sequence of human immunodeficiency virus (HIV) core protein p24 (amino acids 232- 238), was able to specifically abrogate antigen-induced responses in cultures of normal human peripheral blood mono...
journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
doi:10.1046/j.1365-3083.2000.00672.x
更新日期:2000-02-01 00:00:00
abstract::Antigen 60 (A60), a member of the thermostable macromolecular antigen family (TMA) and main component of old tuberculin and purified protein derivative (PPD), has been purified from the cytoplasm of Mycobacterium bovis BCG; its structure and metabolism have already been described. In the present paper, the action of A...
journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3083.1987.tb01084.x
更新日期:1987-06-01 00:00:00
abstract::Proteins secreted by Mycobacterium tuberculosis are targets of host immune responses and as such are investigated for vaccine and immunodiagnostics development. Computer-driven searches of the M. tuberculosis H37Rv genome had previously identified 45 novel secreted proteins. Here, we report the characterization of the...
journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
doi:10.1111/j.0300-9475.2005.01557.x
更新日期:2005-02-01 00:00:00
abstract::A marked prozone effect was observed in indirect immunofluorescence (IFL) with rabbit antisera against rat renal proximal tubular epithelial brush border (BB) antigens: anti-BB antibodies were not detectable if used in high concentrations but were readily demonstrated if sufficiently diluted. The prozone effect occurr...
journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3083.1976.tb00306.x
更新日期:1976-01-01 00:00:00
abstract::We have recently established chronic relapsing experimental autoimmune encephalomyelitis (CR-EAE) in SJL mice with a modified protocol. In this model, splenectomy aborts the relapsing-remitting course of the disease, and adoptive transfer of lymphocytes of the local draining lymph nodes (LNs) to naive recipients exace...
journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
doi:10.1046/j.1365-3083.2002.01132.x
更新日期:2002-09-01 00:00:00