Abstract:
:We reported recently that a novel immunomodulator, 7-thia-8-oxoguanosine (7T8OG)2 inhibited formation of pulmonary melanoma metastases (1), prevented against viral infection in mice (2) and potentiated the efficacy of a weakly immunogenic leukemia vaccine (3). Since certain tumor metastases and virus infected cells are targets to natural killer cells (NK cells), we now investigated whether 7T8OG is capable of activating NK cells in mice using NK cell sensitive YAC-1 and B16 and NK cell insensitive P815 targets. CBA/CaJ spleen cells incubated in vitro with 7T8OG at concentrations ranging from 0.005 to 0.5 mM responded with increased NK cell activity (32-62%) compared to controls (4-8%) to YAC-1 targets. Similar levels of augmentation in NK cell activity were observed when 40-168 mg/kg of 7T8OG was administered in vivo. In addition to the spleen, 7T8OG activated NK cells in the bone marrow (BM), the lungs, the liver, and in peritoneal exudate cells (PE). Although 7T8OG elicited activation of NK cells was observed as early as three hours after treatment, the maximal activity was observed after 24 h in the spleen; 12 h in the BM; 48 h in the lungs, and 72 h in PE. Administration of the drug by s.c., i.v., and i.p. routes all induced activation of NK cells in spleen, BM and PE. 7T8OG was found to activate NK cells in seven inbred and an outbred mouse strain, suggesting that the induced cytotoxicity against allogeneic and syngeneic tumor cells is not strain specific as well as independent of MHC restriction. C3H/He, CBA/CaJ and BDF/1 displayed higher levels of increased NK cell activity, whereas AKR mice were low responders. Low concentrations of IL-2 (0.25-5 U/ml) that induce little or no NK cell activity, when used in combination with 7T8OG, elicited significant enhancement of NK cell cytotoxicity. In contrast, IFN and 7T8OG showed no such synergism.
journal_name
Immunopharmacol Immunotoxicoljournal_title
Immunopharmacology and immunotoxicologyauthors
Sharma BS,Mhaskar S,Balazs L,Siaw Mdoi
10.3109/08923979209009210subject
Has Abstractpub_date
1992-01-01 00:00:00pages
1-19issue
1-2eissn
0892-3973issn
1532-2513journal_volume
14pub_type
杂志文章abstract:OBJECTIVE:To investigate the effects of ginsenoside metabolite compound K (CK) on adjuvant-induced arthritis (AA) rats and the partial mechanisms focused on the function of immunocyte (B cell and macrophage) and effectors' cell (fibroblast-like synoviocyte, FLS). METHODS:Animals were divided randomly into nine groups ...
journal_title:Immunopharmacology and immunotoxicology
pub_type: 杂志文章
doi:10.3109/08923973.2014.880717
更新日期:2014-04-01 00:00:00
abstract::To determine how estrogen exacerbates allergies, the effects of 17beta-estradiol (E2) on lymphocyte proliferation were investigated. BALB/c mice were ovariectomized, administered 3.2 microg E2, and sensitized with 50 microL 4-ethoxymethylene-2-phenyl-2-oxazolin-5-one. After 7 days, their spleens were excised and flow ...
journal_title:Immunopharmacology and immunotoxicology
pub_type: 杂志文章
doi:10.3109/08923970903229053
更新日期:2010-06-01 00:00:00
abstract::Formyl peptides released by some bacteria are powerful chemoattractants and activators of mammalian granulocytes and monocytes, acting through 7-transmembrane specific formyl peptide receptors (FPRs). Three distinct segments of the formyl peptide receptor 1 (FPR1) mRNA of Man share probabilistically significant homolo...
journal_title:Immunopharmacology and immunotoxicology
pub_type: 杂志文章
doi:10.1081/iph-200067768
更新日期:2005-01-01 00:00:00
abstract::We have previously found that NK cell activity is present in rat lung lavage and inhibited by lidocaine. The purpose of this report is to characterize further the inhibition by lidocaine on NK activity. Peripheral blood lymphocytes from normal human volunteers were assayed in a four-hour 51chromium release assay in th...
journal_title:Immunopharmacology and immunotoxicology
pub_type: 杂志文章
doi:10.3109/08923979009006471
更新日期:1990-01-01 00:00:00
abstract::Association between Crohn's disease (CD) and lupus nephritis is very rare and, to the best of our knowledge, it has been described only once. We report here a clinical case of CD occurred in a young woman 8 years after a diagnosis of lupus nephritis according to clinical, laboratory and histological criteria. CD was u...
journal_title:Immunopharmacology and immunotoxicology
pub_type: 杂志文章
doi:10.1081/iph-120037721
更新日期:2004-05-01 00:00:00
abstract:BACKGROUND:Many cases of autoimmune hemolytic anemia have been reported after viral infection. Phagocyte activation and accompanying erythrophagocytosis are thought to result from proinflammatory cytokines released during viral infection. SIRP-α (signal regulatory protein-α), a receptor expressed on phagocytes, inhibit...
journal_title:Immunopharmacology and immunotoxicology
pub_type: 杂志文章
doi:10.3109/08923973.2012.697470
更新日期:2012-12-01 00:00:00
abstract::To probe into the mechanism of immunosuppression of FTY720, the authors study the cell cycle arrest effects of large-dose FTY720 on lymphocytes in mouse skin transplantation models and the expression of cell cycle-related factors in cell cycle regulation system in mouse skin allograft models using flow cytometry, Immu...
journal_title:Immunopharmacology and immunotoxicology
pub_type: 杂志文章
doi:10.1080/08923970801949174
更新日期:2008-01-01 00:00:00
abstract::Traditionally venoms are used from thousands of years to treat pain, inflammation, and arthritis. In Ayurveda "Suchika Voron" and "Shodhona" were practiced against pain. In the present study, venom composition of the Indian honeybee Apis florea (AF), Apis dorsata (AD), and Apis cerana indica (AC) were analyzed using e...
journal_title:Immunopharmacology and immunotoxicology
pub_type: 杂志文章
doi:10.3109/08923973.2015.1009996
更新日期:2015-04-01 00:00:00
abstract::CD69, also known as activation inducer molecule, very early activation antigen, MLR-3 and Leu-23, is a member of the natural killer (NK) cell gene complex family of signal transducing receptors. CD69 is as a type II transmembrane glycoprotein with a C-type lectin binding domain in the extracellular portion of the mole...
journal_title:Immunopharmacology and immunotoxicology
pub_type: 杂志文章,评审
doi:10.3109/08923979909007126
更新日期:1999-08-01 00:00:00
abstract::We investigated immunomodulatory activity of autologous tumor cell vaccine from oral cancer patients ex vivo by lymphoproliferation assay and two color flow cytometry. Vaccine treatment lead to 10-fold higher proliferation of lymphocytes compared with the untreated controls. A significant increase in CD69(+) and HLA-D...
journal_title:Immunopharmacology and immunotoxicology
pub_type: 临床试验,杂志文章
doi:10.1080/08923970701282742
更新日期:2007-01-01 00:00:00
abstract::Multiple Drug Allergy Syndrome (MDAS) is a frequent clinical condition characterized by reactions to more than one different class of antibiotics. Even if some studies have previously reported an increased rate of allergic reactions to drugs in patients with a history of antimicrobials and NSAIDs allergy, risk factors...
journal_title:Immunopharmacology and immunotoxicology
pub_type: 杂志文章
doi:10.1081/iph-100108607
更新日期:2001-11-01 00:00:00
abstract::Host-parasite interactions and their outcome constitute a critical and challenging step in disease establishment in cutaneous leishmaniasis. In the present in vitro study we investigated the possible modulating effects of both sensory and autonomic neuropeptides that normally exist in human and mouse skin, on the upta...
journal_title:Immunopharmacology and immunotoxicology
pub_type: 杂志文章
doi:10.1081/iph-100107339
更新日期:2001-08-01 00:00:00
abstract::Carpal tunnel syndrome (CTS) is a neurological impairment caused by compression of the median nerve throughout the carpal tunnel, which consequently induces ischemia and mechanical disruption, dysfunctional axonal transport, and epidural blood flow. Most common symptoms include numbness, rather than pain, with a typic...
journal_title:Immunopharmacology and immunotoxicology
pub_type: 杂志文章,评审
doi:10.3109/08923973.2010.551214
更新日期:2011-12-01 00:00:00
abstract:BACKGROUND AND AIM:Tanshione IIA (TSN) is the major active component of Salvia miltiorrhiza, a traditional Chinese Medicine. TSN protects against antioxidant-induced liver injury, although the exact mechanism is not well understood. MATERIALS AND METHODS:In this study, the protective effects of TSN was examined by enz...
journal_title:Immunopharmacology and immunotoxicology
pub_type: 杂志文章
doi:10.1080/08923970903120997
更新日期:2010-03-01 00:00:00
abstract::The effect of rapamycin (RAPA) on kidney function and histopathology was assessed in two strains of mice. Male C3H/HeJ mice were treated with RAPA for 4 days at doses of 25, 50, 75, and 100 mg/kg, ip and male C3H/HeJ or female Balb/cJ mice were both treated for 7 days at doses of 75, 150 and 200 mg/kg. Cyclosporine (C...
journal_title:Immunopharmacology and immunotoxicology
pub_type: 杂志文章
doi:10.3109/08923979309066932
更新日期:1993-01-01 00:00:00
abstract::Arecoline, a major alkaloid of arecanut was screened to explore its modulatory influence on cell-mediated immune response in a murine model system. The in vivo and in vitro effects were evaluated at subtoxic concentrations of arecoline. Delayed type hypersensitivity (DTH) reactions to sheep red blood cells (SRBC) were...
journal_title:Immunopharmacology and immunotoxicology
pub_type: 杂志文章
doi:10.3109/08923979109019706
更新日期:1991-01-01 00:00:00
abstract::The current research was designed to determine the effect of artemether in treatment of experimental rheumatoid arthritis. Collagen-induced arthritis was induced in Lewis rats. The intramusculary administration of artemether (ART) and intraperitoneally injection of methotrexate (MTX) were started on day 25 postimmuniz...
journal_title:Immunopharmacology and immunotoxicology
pub_type: 杂志文章
doi:10.1080/08923970500418786
更新日期:2005-01-01 00:00:00
abstract::The effects of Bulnesia sarmienti (BS) aqueous extract on the cell growth of A549 cell lines were investigated. BS has strong cytotoxic activity on the A549 cell lines (IC(50); less than 100 microg/mL) in MTT assay. HPLC confirmed that BS contains catechins as major compound. Cell cycle analysis by flow cytometry indi...
journal_title:Immunopharmacology and immunotoxicology
pub_type: 杂志文章
doi:10.1080/08923970902810432
更新日期:2009-01-01 00:00:00
abstract::Plasma levels of human polymorphonuclear elastase (PMN-E) are considered a marker of granulocyte activation and can potentially complement the peripheral neutrophil count in laboratory and pathophysiological settings. Neutrophilic leukocytosis is a well known effect of lithium therapy, but there is no information abou...
journal_title:Immunopharmacology and immunotoxicology
pub_type: 杂志文章
doi:10.3109/08923970009016431
更新日期:2000-11-01 00:00:00
abstract::Rheumatoid arthritis (RA) is a chronic inflammatory joint disease associated with matrix metalloproteinase (MMP)-3, leading to destruction of the cartilage. The objective of this study was to investigate and discuss the suitability of the 35 medicinal plants as therapeutic candidates to treat RA. Fibroblast-like synov...
journal_title:Immunopharmacology and immunotoxicology
pub_type: 杂志文章
doi:10.3109/08923973.2010.537663
更新日期:2011-09-01 00:00:00
abstract::During the last few years, several observations outline that the impaired T lymphocyte proliferative capacity in the elderly is due to a reduced interleukin 2 (IL-2) release. To further investigate the activation process during lectin stimulation, aged peripheral blood mononuclear cells (PBMC) were stimulated with phy...
journal_title:Immunopharmacology and immunotoxicology
pub_type: 杂志文章
doi:10.3109/08923979109019693
更新日期:1991-01-01 00:00:00
abstract::We previously showed that formation of pulmonary granulomas in mice in response to a mycobacterial glycolipid, trehalose 6,6'-dimycolate (TDM) is due to the action of TNF-α and not of IFN-γ. However, the mechanisms of formation and maintenance of pulmonary granulomas are not yet clear. The purpose of the present study...
journal_title:Immunopharmacology and immunotoxicology
pub_type: 杂志文章
doi:10.3109/08923973.2012.658922
更新日期:2012-10-01 00:00:00
abstract::The immunological effects of interferon (IFN)-alpha administration were evaluated in 15 patients with cHCV infection. Individuals were treated with 6 MU of lymphoblastoid IFN-alpha three times a week for 6 months and with 3 MU three times a week for an additional 6 months. Patients were divided into responders (12 sub...
journal_title:Immunopharmacology and immunotoxicology
pub_type: 杂志文章
doi:10.3109/08923979609052741
更新日期:1996-08-01 00:00:00
abstract:BACKGROUND AND AIM:In the rat prostate, beta-adrenoreceptor (beta-AR) stimulation does not alter basal prostatic tone but may inhibit alpha1-AR-mediated, field stimulation-induced or receptor-independent contractile responses. The present study was designed to assess the alteration of basic fibroblast growth factor (bF...
journal_title:Immunopharmacology and immunotoxicology
pub_type: 杂志文章
doi:10.1080/08923970903164326
更新日期:2010-03-01 00:00:00
abstract::Objective: The present study aimed to investigate whether recombinant human erythropoietin (rHuEPO) plays an immunomodulatory function by regulating the TLR4/NF-κB signaling pathway.Materials and methods: C57BL/6 mice were intraperitoneally injected with rHuEPO and, half an hour later, with 50% glycerol at the dose of...
journal_title:Immunopharmacology and immunotoxicology
pub_type: 杂志文章
doi:10.1080/08923973.2019.1706555
更新日期:2020-02-01 00:00:00
abstract::Serum tumor necrosis factor (TNF) levels in 33 patients with inflammatory bowel disease (IBD) were measured by using a sensitive enzyme immunoassay. Four of five Crohn's diseases (CD) and nine of twenty eight ulcerative colitis (UC) had elevated levels of serum TNF. In active CD or UC, a greater fraction of patients s...
journal_title:Immunopharmacology and immunotoxicology
pub_type: 杂志文章
doi:10.3109/08923979209005404
更新日期:1992-01-01 00:00:00
abstract::The purpose of our study was to compare the effectiveness of immunosuppressive drugs on the prevention of allograft rejection in a murine model of low-risk and high-risk keratoplasty. The therapy included FK 506 (tacrolimus; 0.2 mg/kg), mycophenolate mofetil (30 mg/kg), aminoguanidine (0.1 g/kg), and combination of FK...
journal_title:Immunopharmacology and immunotoxicology
pub_type: 杂志文章
doi:10.1080/08923970600809447
更新日期:2006-01-01 00:00:00
abstract::Paraquat (methyl viologen, PQ) is highly toxic to humans. Pulmonary fibrosis is the most common cause of death after PQ poisoning. However, no effective therapy is available. The current treatment dilemma and pathology suggest that we should reconsider how to treat the poisoning using other methods, such as immunizati...
journal_title:Immunopharmacology and immunotoxicology
pub_type: 杂志文章
doi:10.1080/08923973.2018.1490319
更新日期:2018-08-01 00:00:00
abstract::Cancer is responsible for millions of deaths each year worldwide. Pharmacological intervention with plant-derived products alone or in combination to reverse, suppress, or prevent the cancer progression plays a key role in the fight against this terrible disease. Aerva lanata is an important medicinal plant widely use...
journal_title:Immunopharmacology and immunotoxicology
pub_type: 杂志文章
doi:10.3109/08923973.2010.526614
更新日期:2011-09-01 00:00:00
abstract::T-2 toxin, a fungal metabolite shown previously to exert potent immunosuppressive effects, was examined for its effects on activation and interleukin 2 (IL 2) production by murine and rat splenocytes. Splenocytes (1 X 10(6) cells/well) were incubated with 1 microgram Concanavalin A (Con A) for 48 h at which time cellu...
journal_title:Immunopharmacology and immunotoxicology
pub_type: 杂志文章
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更新日期:1988-01-01 00:00:00