Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1989-7-12
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.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0006-291X
pubmed:author
pubmed:issnType
Print
pubmed:day
30
pubmed:volume
161
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
284-9
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1989
pubmed:articleTitle
Retinoic acid inhibits phosphatidylinositol turnover only in RA-sensitive while not in RA-resistant human neuroblastoma cells.
pubmed:affiliation
Pediatric Oncology Research Laboratory, G. Gaslini Children's Hospital, Genoa, Italy.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't