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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
40
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pubmed:dateCreated |
1994-11-4
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pubmed:abstractText |
The expression of rat liver phosphatidylethanolamine N-methyltransferase-2 (PEMT2) in McA-RH7777 rat hepatoma cells resulted in the unexpected inhibition of cell growth. There was a strict correlation (r = 0.973) between the level of expression of the enzyme activity and the generation time for hepatoma cell division. Expression of other foreign proteins via the same vector did not inhibit McA-RH7777 cell growth; thus, retardation of cell division was specific for the methyltransferase. Addition of 1 microM 3-deazaadenosine, which causes inhibition of phosphatidylethanolamine methylation, reversed the PEMT2-mediated inhibition of cell division. Transfection of a line of Chinese hamster ovary cells with PEMT2 had no effect on the division of these cells. Induction of hepatic tumors in rats with N-nitrosodiethylamine coincided with a striking decrease in methyltransferase activity and immunoreactive protein in the tumor nodules. Thus, data from studies in cell culture and intact rats suggest a regulatory role for PEMT2 in hepatocyte cell growth and possibly in the development of liver cancer.
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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/3-deazaadenosine,
http://linkedlifedata.com/resource/pubmed/chemical/Methyltransferases,
http://linkedlifedata.com/resource/pubmed/chemical/Phosphatidylcholines,
http://linkedlifedata.com/resource/pubmed/chemical/Phosphatidylethanolamine...,
http://linkedlifedata.com/resource/pubmed/chemical/Phosphatidylethanolamines,
http://linkedlifedata.com/resource/pubmed/chemical/Tubercidin
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pubmed:status |
MEDLINE
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pubmed:month |
Oct
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pubmed:issn |
0021-9258
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
7
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pubmed:volume |
269
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
24531-3
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:7929120-Animals,
pubmed-meshheading:7929120-Cell Division,
pubmed-meshheading:7929120-Liver,
pubmed-meshheading:7929120-Liver Neoplasms, Experimental,
pubmed-meshheading:7929120-Methyltransferases,
pubmed-meshheading:7929120-Phosphatidylcholines,
pubmed-meshheading:7929120-Phosphatidylethanolamine N-Methyltransferase,
pubmed-meshheading:7929120-Phosphatidylethanolamines,
pubmed-meshheading:7929120-Rats,
pubmed-meshheading:7929120-Tubercidin,
pubmed-meshheading:7929120-Tumor Cells, Cultured
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pubmed:year |
1994
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pubmed:articleTitle |
Suppression of rat hepatoma cell growth by expression of phosphatidylethanolamine N-methyltransferase-2.
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pubmed:affiliation |
Lipid and Lipoprotein Research Group, University of Alberta, Edmonton, Canada.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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