Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
12
pubmed:dateCreated
1991-3-6
pubmed:abstractText
We examined the effect of hemin, sodium butyrate and mitomycin C on levels of P-glycoprotein mRNA in human myelogenous K562 cells by northern blot analysis. After treatment with sodium butyrate a dose-dependent increase of P-glycoprotein mRNA expression was observed in the adriamycin-resistant K562 and vincristine-resistant K562 lines. With 10 mM sodium butyrate, the level of P-glycoprotein mRNA reached 20 times that of control adriamycin-resistant K562 and with 30 mM sodium butyrate, it exceeded 5 times that of control vincristine-resistant K562. In contrast, hemin and mitomycin C had almost no effect on P-glycoprotein mRNA. In this experiment, since expression of P-glycoprotein mRNA was not necessarily accompanied with induction of erythroid differentiation, the increased amount of P-glycoprotein mRNA is unlikely to be a result of differentiation.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0910-5050
pubmed:author
pubmed:issnType
Print
pubmed:volume
81
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1214-7
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1990
pubmed:articleTitle
Increase in the level of P-glycoprotein mRNA expression in multidrug-resistant K562 cell lines treated with sodium butyrate is not accompanied with erythroid differentiation.
pubmed:affiliation
Department of Clinical Cancer Chemotherapy, Tohoku University, Sendai.
pubmed:publicationType
Journal Article, Comparative Study