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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
6
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pubmed:dateCreated |
1990-3-15
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pubmed:abstractText |
Many compounds of different chemical structure can induce the HL-60 cell line to differentiate along the monocytic or granulocytic pathway, but the mechanism(s) of differentiation by these agents is not known. Experimental evidence suggests that DNA and/or membrane phospholipid transmethylation reactions may be of importance. Based on this background, we have studied the effects of various concentrations of (dl)-5-methyltetrahydrofolate (mTHF), a folate coenzyme involved in transmethylation reactions, on differentiation of HL-60 cells. Differentiation along the monocytic pathway was evidenced in kinetic, functional, cytochemical and immunophenotypical studies when cells were treated with high-dose (dl)-mTHF (1 x 10(-3)M). Some hypotheses on the mechanism(s) of (dl)-mTHF induced HL-60 cell differentiation are discussed with particular regard to a possible enhancement of lipid or DNA methylation via methionine formation by the (l) form or to inhibition of folate-dependent metabolism by the unnatural (d) form, hence of purine and thymine nucleotide synthesis.
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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 |
Dec
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pubmed:issn |
1120-009X
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
1
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
359-64
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pubmed:dateRevised |
2009-8-4
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pubmed:meshHeading |
pubmed-meshheading:2614501-Cell Cycle,
pubmed-meshheading:2614501-Cell Differentiation,
pubmed-meshheading:2614501-HLA Antigens,
pubmed-meshheading:2614501-Humans,
pubmed-meshheading:2614501-Leukemia, Promyelocytic, Acute,
pubmed-meshheading:2614501-Monocytes,
pubmed-meshheading:2614501-Tetrahydrofolates,
pubmed-meshheading:2614501-Tumor Cells, Cultured
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pubmed:year |
1989
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pubmed:articleTitle |
Induction of differentiation of HL-60 cells along the monocytic pathway by 5-methyltetrahydrofolate.
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pubmed:affiliation |
U.O. di Ematologia, U.S.L. 10/D, Firenze, Italy.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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