Linked Life Data

18346469

Source:http://linkedlifedata.com/resource/pubmed/id/18346469

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2008-5-5
pubmed:abstractText
It is known that protein kinase C (PKC) signal transduction is enhanced in a diabetic state, and that PKC activator phorbol esters increase the gene expression of MDR1 in human tumor cells. To clarify the expression of the liver transporters under diabetic conditions and the roles of PKCalpha and the transcription factor NF-kappaB, we investigated the expression levels of Mdr1a, Mdr1b, Mdr2, Mrp2, Bcrp, Bsep, Oct1, Oat2, and Oat3 transporters, PKCalpha, IkappaB, and NF-kappaB in the liver of rats with STZ-induced hyperglycemia. A selective increase in the gene expression of Mdr1b was detected by RT-PCR. Western blotting with C219 antibody revealed an increase in P-glycoprotein. Although the mRNA level of PKCalpha was not affected, translocation of PKCalpha to the microsomal fraction was detected. NF-kappaB p65, IkappaBalpha and IkappaBbeta mRNA levels were increased as was the level of nuclear NF-kappaB p65. From these findings, it was suggested that STZ-induced hyperglycemia caused the upregulation of Mdr1b P-gp expression through the activation of PKCalpha and NF-kappaB.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0006-3002
pubmed:author
pubmed:issnType
Print
pubmed:volume
1782
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
355-60
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed:year
2008
pubmed:articleTitle
Increase in P-glycoprotein accompanied by activation of protein kinase Calpha and NF-kappaB p65 in the livers of rats with streptozotocin-induced diabetes.
pubmed:affiliation
Department of Medical Technology, Nagoya University School of Health Sciences, 1-1-20 Daikominami, Nagoya 461-8673, Japan.
pubmed:publicationType
Journal Article