Abstract:
:The regulatory effect of prostaglandin (PG) E2 and a cyclooxygenase (COX) inhibitor on Bacille Calmette-Guérin (BCG)-induced macrophage cytotoxicity in a bladder cancer cell, MBT-2, was studied in vitro. BCG stimulated thioglycollate-elicited murine peritoneal exudate cells (PEC) to induce cytotoxic activity and to produce cytokines such as interferon (IFN)-gamma, tumour necrosis factor (TNF)-alpha and PGE2. NS398, a specific COX-2 inhibitor, and indomethacin (IM), a COX-1 and COX-2 inhibitor, enhanced viable BCG-induced cytotoxic activity and IFN-gamma and TNF-alpha production of PEC. However, NS398 and IM did not enhance these activities induced by killed BCG. Enhanced cytotoxicity was mediated by increased amounts of IFN-gamma and TNF-alpha. Exogenous PGE2 reduced cytotoxic activity and IFN-gamma and TNF-alpha production of PEC. These results suggest that PGE2 produced by BCG-activated macrophages has a negative regulatory effect on the cytotoxic activity of macrophages. Accordingly, a PG synthesis inhibitor may be a useful agent to enhance BCG-induced antitumour activity of macrophages.
journal_name
Clin Exp Immunoljournal_title
Clinical and experimental immunologyauthors
Yamada H,Kuroda E,Matsumoto S,Matsumoto T,Yamada T,Yamashita Udoi
10.1046/j.1365-2249.2002.01686.xsubject
Has Abstractpub_date
2002-04-01 00:00:00pages
52-8issue
1eissn
0009-9104issn
1365-2249pii
1686journal_volume
128pub_type
杂志文章abstract::Human neutrophils, added to fibronectin (FN)-coated polystyrene wells and exposed to tumour necrosis factor-alpha (TNF-alpha), were found to exhibit a prolonged production of superoxide anion (O2-) after a lag period of approx 30 min. The O2- production, but not the cell adherence to FN, was completely inhibited by tw...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
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abstract::The failure of B cells from CVI patients to secrete normal amounts of antibodies has been attributed either to an intrinsic B cell defect or to a lack of cooperation from T cells. In an attempt to improve the definition of the origin of this defect in one of the main cellular compartments, we studied the ability of he...
journal_title:Clinical and experimental immunology
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doi:10.1111/j.1365-2249.1995.tb03779.x
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journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:10.1111/cei.12711
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journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:
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abstract::We investigated the clearance kinetics and tissue distribution of different sized IgA in normal and macrophage-depleted rats. Rats were injected iv with liposomes containing dichloromethylene diphosphonate (DMDP). DMDP treatment resulted in complete depletion of liver macrophages 24-48 h after administration. Normal a...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
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abstract::Humoral and cell-mediated immune responses to Salmonella typhi were studied in 10 chronic typhoid carriers, and in healthy controls. Carriers showed impaired cellular reactivity to S. typhi antigens in the leucocyte migration inhibition test (LMI). Carriers did not show a generalized depression of cell-mediated immuni...
journal_title:Clinical and experimental immunology
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journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:
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journal_title:Clinical and experimental immunology
pub_type: 杂志文章
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journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:10.1111/j.1365-2249.1995.tb05543.x
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journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:
更新日期:1978-10-01 00:00:00
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pub_type: 杂志文章
doi:10.1046/j.1365-2249.2002.02000.x
更新日期:2002-11-01 00:00:00
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journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:10.1111/j.1365-2249.1990.tb05362.x
更新日期:1990-09-01 00:00:00
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journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:
更新日期:1983-11-01 00:00:00
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journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:10.1111/j.1365-2249.1992.tb03052.x
更新日期:1992-04-01 00:00:00
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journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:10.1111/j.1365-2249.1995.tb02286.x
更新日期:1995-07-01 00:00:00
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journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:10.1111/j.1365-2249.1991.tb05712.x
更新日期:1991-08-01 00:00:00
abstract::Evidence is emerging that exposure to mercury (Hg) may elicit many pathological manifestations, including immunomodulation. We tested whether changing cellular activation pathways may affect the immunomodulation by Hg. Human cell cultures were set up where isolated peripheral blood mononuclear cells, activated by mono...
journal_title:Clinical and experimental immunology
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doi:10.1111/j.1365-2249.2007.03338.x
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journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:
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abstract::A solid-phase radioimmunoassay was developed to detect antibodies to liver membrane antigens in sera of patients with HBsAg-negative and -positive liver diseases and primary non-hepatic autoimmune diseases. Ten of fourteen patients with HBsAg-negative CAH had autoantibodies detected by RIA; negative results were obtai...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:
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journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:
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journal_title:Clinical and experimental immunology
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abstract::Recently, naturally occurring antibodies to IFN-alpha were discovered in a few systemic lupus erythematosus (SLE) and cancer patients; however, in most patients monitored for anti-IFN antibodies before treatment, no antibodies were found. In an attempt to explain the 'IFN-blocking effect' that we observed in all serum...
journal_title:Clinical and experimental immunology
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doi:10.1111/j.1365-2249.1990.tb05403.x
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journal_title:Clinical and experimental immunology
pub_type: 杂志文章
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journal_title:Clinical and experimental immunology
pub_type: 临床试验,杂志文章,多中心研究
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更新日期:2020-01-01 00:00:00
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journal_title:Clinical and experimental immunology
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journal_title:Clinical and experimental immunology
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更新日期:2011-11-01 00:00:00
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journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:
更新日期:1988-10-01 00:00:00