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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1989-7-12
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pubmed:abstractText |
Phosphatidylinositol (PI) turnover has recently been implicated in the regulation of cell proliferation and transformation. We have investigated its role in differentiation using LAN-1 cells, a human neuroblastoma cell line which can be induced to differentiate along the neuronal pathway by retinoic acid (RA), and a derivated RA-resistant subline of it (LAN-1-res). We have found that treatment of LAN-1 cells with RA is followed by a rapid decrease of inositol phospholipid metabolism, using myo-[1,2-3H] inositol or [1,(3)-3H] glycerol. Analysis of labelled phosphatidylinositol metabolites from prelabelled LAN-1 cells indicated a rapid decrease of inositol (1,4,5)-trisphosphate and (1,2) diacylglycerol within 1 min. of induction of differentiation by RA, while no changes were observed in RA-treated LAN-1-res cells. These findings indicate that phosphoinositides-derived metabolites may be directly implicated in the induction processes of RA-triggered NB cell differentiation.
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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 |
May
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pubmed:issn |
0006-291X
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
30
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pubmed:volume |
161
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
284-9
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:2730659-Cell Differentiation,
pubmed-meshheading:2730659-Cell Line,
pubmed-meshheading:2730659-Diglycerides,
pubmed-meshheading:2730659-Drug Resistance,
pubmed-meshheading:2730659-Humans,
pubmed-meshheading:2730659-Neuroblastoma,
pubmed-meshheading:2730659-Phosphatidylinositols,
pubmed-meshheading:2730659-Tretinoin
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pubmed:year |
1989
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pubmed:articleTitle |
Retinoic acid inhibits phosphatidylinositol turnover only in RA-sensitive while not in RA-resistant human neuroblastoma cells.
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pubmed:affiliation |
Pediatric Oncology Research Laboratory, G. Gaslini Children's Hospital, Genoa, Italy.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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