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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1997-10-16
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pubmed:abstractText |
Preincubation of HL60 cells and HUVEC cells with urinary trypsin inhibitor (UTI) inhibited increase of cytosolic free Ca2+ induced by LPS. In contrast, an increase of cytosolic free Ca2+ induced by LPS was not inhibited by deglycosylated UTI, UTI treated with monoclonal antibody of chondroitin sulfate. 45Ca2+ binding showed that UTI binds 45Ca2+ dose-dependently. Scatchard plot analysis showed that UTI has two binding sites for Ca2+, a high affinity binding site (Kd=15 microM) and a low affinity site (Kd=150 microM), and that UTI has more than 70 Ca2+ binding sites per molecule. The Ca2+ binding capacity of deglycosylated UTI and UTI treated with monoclonal antibody of chondroitin sulfate was markedly depressed. Furthermore, UTI forms multi-polymers in the presence of Ca2+ as demonstrated by gel filtration and agarose gel electrophoresis. These results suggest that UTI is a physiological Ca2+ chelator on the cells and that the action is due to chondroitin sulfate chains of UTI.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Calcium,
http://linkedlifedata.com/resource/pubmed/chemical/Chondroitin Sulfates,
http://linkedlifedata.com/resource/pubmed/chemical/Glycoproteins,
http://linkedlifedata.com/resource/pubmed/chemical/Lipopolysaccharides,
http://linkedlifedata.com/resource/pubmed/chemical/Trypsin Inhibitors,
http://linkedlifedata.com/resource/pubmed/chemical/urinastatin
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pubmed:status |
MEDLINE
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pubmed:month |
Sep
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pubmed:issn |
0006-291X
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pubmed:author | |
pubmed:copyrightInfo |
Copyright 1997 Academic Press.
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pubmed:issnType |
Print
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pubmed:day |
18
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pubmed:volume |
238
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
560-4
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pubmed:dateRevised |
2004-11-17
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pubmed:meshHeading |
pubmed-meshheading:9299551-Binding Sites,
pubmed-meshheading:9299551-Calcium,
pubmed-meshheading:9299551-Chondroitin Sulfates,
pubmed-meshheading:9299551-Chromatography, Gel,
pubmed-meshheading:9299551-Endothelium, Vascular,
pubmed-meshheading:9299551-Glycoproteins,
pubmed-meshheading:9299551-HL-60 Cells,
pubmed-meshheading:9299551-Humans,
pubmed-meshheading:9299551-Lipopolysaccharides,
pubmed-meshheading:9299551-Trypsin Inhibitors
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pubmed:year |
1997
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pubmed:articleTitle |
The role of chondroitin sulfate chains of urinary trypsin inhibitor in inhibition of LPS-induced increase of cytosolic free Ca2+ in HL60 cells and HUVEC cells.
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pubmed:affiliation |
Department of Obstetrics and Gynecology, Hamamatsu University School of Medicine, Hamamatsu, 3600 Handa-cho, 431-31, Japan.
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pubmed:publicationType |
Journal Article
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