CD4 Th1 but not Th2 clones efficiently activate macrophages to eliminate Trypanosoma cruzi through a nitric oxide dependent mechanism.

abstract：:A considerable body of evidence from various laboratories indicates that specific T cell responses generated during infection with Leishmania parasites play an important role both in the resolution and progression of cutaneous leishmaniasis. Recent data, summarized in this article, indicate that resolution of lesions ...

journal_title：Immunology letters

authors： Müller I,Pedrazzini T,Louis JA

更新日期：1988-11-01 00:00:00

abstract：:Interleukin 1 beta (IL1 beta) is an inducible polypeptide with many roles in host defence and homoeostasis. It has also been implicated as a mediator of infectious, inflammatory and autoimmune diseases, and the kinetics of its production are relevant to an understanding of the pathogenesis of these conditions. We repo...

journal_title：Immunology letters

authors： di Giovine FS,Symons JA,Duff GW

更新日期：1991-08-01 00:00:00

abstract：:The photobleaching energy transfer (pbFRET) technique is a fluorescence method to measure proximity relationships between molecules, especially cell surface proteins, labeled with fluorophore-conjugated monoclonal antibodies, on a pixel-by-pixel base using digital imaging microscopy. This technique enables analysis of...

journal_title：Immunology letters

authors： Bacsó Z,Bene L,Bodnár A,Matkó J,Damjanovich S

更新日期：1996-12-01 00:00:00

abstract：:Four murine monoclonal antibodies (mAbs) showing similar reactivity with a cell-wall extract and mannan preparation obtained from Candida albicans were examined for epitope specificity. An enzyme-linked immunosorbent assay (ELISA) was used to determine total mAb binding to extracted cell-wall antigen when each mAb was...

journal_title：Immunology letters

authors： Chaffin WL,Morrow KJ Jr

更新日期：1989-07-01 00:00:00

abstract：:Dendritic cells (DCs) are highly specialized antigen-presenting cells that play a key role in the initiation and regulation of immune responses. The ability of DCs to process antigens and the outcome of their interaction with T cells are largely dependent on phenotype as well as maturation state of DCs. In this study,...

journal_title：Immunology letters

authors： Janelidze S,Enell K,Visse E,Darabi A,Salford LG,Siesjö P

更新日期：2005-11-15 00:00:00

abstract：:Heat-sensitive serum masking cofactor(s) of antiphospholipid antibody (aPL) in normal human sera (NHS) are specifically inactivated at 56 degrees C. The degree of binding in ELISA by unmasked aPL in NHS was equivalent to that in non-heated, aPL-reactive autoimmune SLE sera. Previously "negative" SLE sera also reacted ...

journal_title：Immunology letters

authors： Cheng HM,Wong KK

更新日期：1990-01-01 00:00:00

abstract：:Immunization of BALB/c mice (H-2d) with a mixture of major histocompatibility complex (MHC) class I- and MHC class II-restricted synthetic peptides emulsified in incomplete Freund's adjuvant (IFA) induced a high level of specific cytotoxic T lymphocyte (CTL) activity. Peptides 249-260 or 252-260, derived from the circ...

journal_title：Immunology letters

authors： Renggli J,Valmori D,Romero JF,Eberl G,Romero P,Betschart B,Corradin G

更新日期：1995-05-01 00:00:00

abstract：:Monoclonal antibodies (mAb) reacting with native (TA5, TB12) and denatured (T33, T35) plant toxin mistletoe lectin I (MLI) from Viscum album have been obtained. The interaction between mAbs and native toxin with ML isoforms (MLII, MLIII) has been investigated. An immunological cross-reaction has been shown to take pla...

journal_title：Immunology letters

authors： Tonevitsky AG,Rakhmanova VA,Agapov II,Shamshiev AT,Usacheva EA,Prokoph'ev SA,Denisenko ON,Alekseev YuO,Pfueller U

更新日期：1995-01-01 00:00:00

abstract：:Previous studies have demonstrated that culture supernatants of LPS-stimulated murine splenic B lymphocytes (BLPSSN) are able to inhibit the growth of freshly isolated B cells via an IgM antibody. In this work we investigated the progress of LPS-activated B lymphocytes through the cell cycle in the presence of this an...

journal_title：Immunology letters

authors： Uher F,Mihalik R,Alonso ME,Gergely J

更新日期：1992-08-01 00:00:00

abstract：:The purpose of this study is to show that anti-Leu M1 antibody (anti-CD15), which has different staining characteristics in lymphoid and non-lymphoid cells, reacted against the surface antigen of a defined monoclonal B cell line. This antibody recognizes the sugar moiety, lacto-N-fucopentaose (LNF-III), which is linke...

journal_title：Immunology letters

authors： Takei M,Kang H,Tomura K,Ikeda E,Karasaki M,Nakauchi H,Okumura K,Sawada S

更新日期：1989-11-01 00:00:00

abstract：:While the spleen is an active site for myelopoiesis during the late embryonal and perinatal stages, the activity is gradually lost later. However, myelopoiesis in the adult spleen can be reactivated by irradiation or various stimulants. In this study we investigated factors which determine the myelopoiesis-supporting ...

journal_title：Immunology letters

authors： Ohno H,Ogawa M,Nishikawa S,Hayashi S,Kunisada T,Nishikawa S

更新日期：1993-02-01 00:00:00

abstract：:Based on the cerebral malaria coma scale, 39 falciparum malaria autopsy cases from the Hospital for Tropical Diseases, Mahidol University, Bangkok, Thailand were divided into two groups of patients that had either cerebral malaria or non-cerebral malaria. We then studied significant pathological differences, such as p...

journal_title：Immunology letters

authors： Riganti M,Pongponratn E,Tegoshi T,Looareesuwan S,Punpoowong B,Aikawa M

更新日期：1990-08-01 00:00:00

abstract：:DC are unique antigen presenting cells, and their ability to induce proliferation of T cells in a mixed leukocyte reaction (MLR) assay is commonly used for the evaluation of their function. To determine the mechanisms involved in DC-induced T cell activation in a primary MLR assay, a variety of different agents were e...

journal_title：Immunology letters

authors： Tourkova IL,Yurkovetsky ZR,Shurin MR,Shurin GV

更新日期：2001-09-03 00:00:00

abstract：:Using micro-electrode technique we studied the effects of interleukin-2 (50 ng/ml) on bio-electric activity of rat atrial myocardium under normal conditions and after gradual stretching of the tissue. It was shown that interleukin-2 caused increasing in the duration of action potential at the levels of 25, 50, and 90%...

journal_title：Immunology letters

authors： Aksyonov A,Mitrokhin VM,Mladenov MI

更新日期：2015-09-01 00:00:00

abstract：:The role of the immunomodulator Protein A (PA) (from Staphylococcus aureus, Cowan I strain) in the control of leishmanial infection was studied in experimental animals. Treatment of Leishmania donovani infected hamsters with PA led to a moderate level of reduction of parasite load in their spleen (68%) and liver (46%)...

journal_title：Immunology letters

authors： Ghose AC,Mookerjee A,Sengupta K,Ghosh AK,Dasgupta S,Ray PK

更新日期：1999-02-01 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

authors： Takahashi Y,Ametani A,Totsuka M,Fujine K,Tsuji NM,Kurisaki J,Kaminogawa S

更新日期：1998-04-01 00:00:00

abstract：:Rabbit anti-ovalbumin antibodies were found to bind to Swiss NIH 3T3 fibroblasts by indirect immunofluorescence, and to induce DNA synthesis when these cells were arrested in G0 phase of their replicating cycle (G0-S activity). The proof that these effects were related to the ovalbumin paratopes is based on the follow...

journal_title：Immunology letters

authors： Mangalo R,Doligez-Chambost A,Marcovich H

更新日期：1987-05-01 00:00:00

abstract：:Receptor-binding by the B-subunit of Escherichia coli heat-labile enterotoxin (EtxB) induces apoptosis of peripheral CD8(+), but not CD4(+) T-cells. Given that peripheral CD8(+) and CD4(+) T cells arise from a common developmental pathway in the thymus, we investigated the effects of EtxB on different thymocyte popula...

journal_title：Immunology letters

authors： Salmond RJ,Williams R,Hirst TR,Williams NA

更新日期：2003-07-03 00:00:00

abstract：:As the most common non-traumatic disabling disease among adolescents, multiple sclerosis (MS) is a devastating neurological inflammatory disease of the central nervous system. Research has not yet fully elucidated its pathogenesis, but it has shown MS to be a complex, multifactorial disease with many interplaying fact...

journal_title：Immunology letters

authors： Mimpen M,Smolders J,Hupperts R,Damoiseaux J

更新日期：2020-06-01 00:00:00

abstract：:A survey of the appearance of natural antibodies in C57BL/6 mice, measured by a complement-dependent cytotoxicity test against syngeneic radiation leukemia virus-induced lymphoma, was performed. Activity could be detected in sera from 5- to 14-month-old animals. This activity could be attributed mainly to IgM antibodi...

journal_title：Immunology letters

authors： Rubio N

更新日期：1981-10-01 00:00:00

abstract：:We determined the degree of activation of the TNF alpha system and the levels of IL-8 in HIV-1 infection. TNF alpha is one of the most potent agents for the induction of IL-8. TNF alpha may be cleared rapidly from the circulation, however soluble tumor necrosis factor receptor (sTNFR) p75 which is more stable may refl...

journal_title：Immunology letters

authors： Hober D,Benyoucef S,Delannoy AS,De Groote D,Ajana F,Mouton Y,Wattré P

更新日期：1996-08-01 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

authors： Ponsard DC,Chou CT,Cinader B,Dubiski S

更新日期：1986-08-01 00:00:00

abstract：:Experiments with malaria in mice suggest that protective immunity depends not only on antibody but also on activation of macrophages. Activated macrophages may cause intra-erythrocytic death of parasites by releasing reactive oxygen intermediates and/or tumour necrosis factor. Macrophage activation for both types of p...

journal_title：Immunology letters

authors： Playfair JH,Dockrell H,Taverne J

更新日期：1985-01-01 00:00:00

abstract：:Dendritic cells (DCs) differentiated in the presence of IL-10 preferentially induce regulatory T-cells and tolerance. Whether the tolerogenic properties displayed by these DCs (Tol-DCs) can be overcome has not been fully explored. Here we show for the first time that Tol-DCs express higher levels of TLR5 mRNA, but not...

journal_title：Immunology letters

authors： Vicente-Suarez I,Brayer J,Villagra A,Cheng F,Sotomayor EM

更新日期：2009-08-15 00:00:00

abstract：:Soluble C3d applied to human blood-derived B lymphocytes inhibited anti-mu, T cell-produced growth factor, and EBV-induced DNA synthesis in serum-free culture. C3d added to the B cell cultures 1 and 2 days after the stimulus, still exerted inhibition, though with gradually diminishing efficiency. C3d, fixed on zymosan...

journal_title：Immunology letters

authors： Kuraya M,Nilsson B,Nilsson-Ekdahl K,Klein E

更新日期：1990-10-01 00:00:00

abstract：:The monoclonal antibody (mAb) UN2 was generated upon immunization of a Balb/c mouse with human thymocytes. mAb UN2 recognized an antigen expressed by a subpopulation of human thymocytes and peripheral blood lymphocytes. In thymus, mAb UN2 recognized cortical cells; its expression was higher on CD3bright than on CD3dim...

journal_title：Immunology letters

authors： Tassone P,Bonelli P,Tuccillo F,Turco MC,De Rosa G,Morrone G,Cecco L,Cerra M,Petrella A,Nigro M

更新日期：1994-09-01 00:00:00

abstract：:Several immunodominant B-cell epitopes of the P. falciparum antigen blood stage Pf155/RESA, a major vaccine candidate antigen, are located in the molecular regions containing amino acid repeats. We started to map Pf155/RESA for T cell reactive epitopes. For this purpose, short synthetic peptides corresponding to the 3...

journal_title：Immunology letters

authors： Troye-Blomberg M,Kabilan L,Riley EM,Ortlund J,Andersson G,Perlmann H,Olerup O,Högh B,Petersen E,Snow RW

更新日期：1988-11-01 00:00:00

abstract：:A theoretical analysis of experimental data is presented in this mini-review on non-random homo- and hetero-associations of cell surface receptors, which can be recruited in the plasma membrane or at the surface of the rough endoplasmic reticulum during the protein synthesis. In the latter case, the likely genetic ori...

journal_title：Immunology letters

authors： Damjanovich S,Mátyus L,Damjanovich L,Bene L,Jenei A,Matkó J,Gáspár R,Szöllösi J

更新日期：2002-06-03 00:00:00

abstract：:The regulatory effect of Z-100 on the balance of Th1/Th2 cell responses in BALB/c mice bearing Meth-A fibrosarcoma was investigated. In tumor bearing mice, Th1 cytokine production (IL-2, IFN-gamma) are suppressed and Th2 cytokine production (IL-4, IL-10) are increased, as compared with those of normal mice. The admini...

journal_title：Immunology letters

authors： Oka H,Emori Y,Ohya O,Kobayashi N,Sasaki H,Tanaka Y,Hayashi Y,Nomoto K

更新日期：1999-11-01 00:00:00

abstract：:Umbilical cord blood transplants are associated with a lower incidence of graft-versus-host disease (GVHD) than adult marrow or peripheral blood stem cell transplants, and this could be related to a difference in cytokine production between fetal and adult mononuclear cells after allogeneic stimulation. Mixed lymphocy...

journal_title：Immunology letters

authors： Kilpatrick DC,Downing I,Palmer JB,Turner ML

更新日期：2004-01-30 00:00:00