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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
6
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pubmed:dateCreated |
1992-10-7
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pubmed:abstractText |
Effects of Polyactin A (PAA) on abilities of human monocytes to synthesize and secrete interleukin-1 (IL-1) and to modulate natural killer (NK) cell activity in large granular lymphocytes (LGL) were investigated in vitro. Over a wide range of concentrations (0.01-100 micrograms.ml-1), PAA directly induced IL-1 synthesis and secretion, showing the maximal effect at 10 micrograms.ml-1, and evidently synergized with lipopolysaccharides (LPS) of E coli in stimulation of IL-1 production by human monocytes. The manifestation of PAA pretreated autologous monocytes in modulation of NK cell activity was closely related to PAA concentration. A boosting effect of PAA-treated monocytes on NK activity was observed when PAA 10-100 micrograms.ml-1 were used for pretreatment of monocytes, while an inhibitory influence of monocytes was found when PAA 0.01-0.1 microgram.ml-1 were used. These results demonstrate significant effects of PAA on functions of human monocytes, enhancing IL-1 production and affecting their regulative activity on NK cell cytotoxicity.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Nov
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pubmed:issn |
0253-9756
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
12
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
483-8
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pubmed:dateRevised |
2004-11-17
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pubmed:meshHeading |
pubmed-meshheading:1823998-Adjuvants, Immunologic,
pubmed-meshheading:1823998-Adult,
pubmed-meshheading:1823998-Animals,
pubmed-meshheading:1823998-Cytotoxicity, Immunologic,
pubmed-meshheading:1823998-Female,
pubmed-meshheading:1823998-Glycopeptides,
pubmed-meshheading:1823998-Humans,
pubmed-meshheading:1823998-Interleukin-1,
pubmed-meshheading:1823998-Killer Cells, Natural,
pubmed-meshheading:1823998-Leukemia, Erythroblastic, Acute,
pubmed-meshheading:1823998-Male,
pubmed-meshheading:1823998-Mice,
pubmed-meshheading:1823998-Mice, Inbred C57BL,
pubmed-meshheading:1823998-Monocytes,
pubmed-meshheading:1823998-Tumor Cells, Cultured
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pubmed:year |
1991
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pubmed:articleTitle |
Influences of Polyactin A on activities of human monocytes in vitro.
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pubmed:affiliation |
Department of Microbiology and Immunology, West China University of Medical Sciences, Chengdu.
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pubmed:publicationType |
Journal Article
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