Linked Life Data

17285445

Source:http://linkedlifedata.com/resource/pubmed/id/17285445

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2007-2-7
pubmed:abstractText
To investigate whether the knockdown of SMemb gene expression induces phenotypic modulation of vascular smooth muscle (VSM) cells toward a contractile type, we constructed a siRNA targeting the 3' untranslated region (UTR) of SMemb gene (SMemb-siRNA). The SMemb-siRNA was introduced into cultured rabbit VSM cells for 48 h at 37 degrees C by the lipofection method. The mRNA expressions were estimated by comparative reverse transcription-polymerase chain reaction (RT-PCR). SMemb-siRNA significantly decreased the ratio of SMemb to glyceraldehyde-3-phosphate dehydrogenase (GAPDH) mRNA expression in a dose-dependent manner (P < 0.01): 0 nM, 0.90 +/- 0.08; 100 nM, 0.43 +/- 0.07. Immunofluorescence and immunoblot analyses demonstrated that SMemb-siRNA markedly decreased SMemb protein expression to 56% +/- 7.8% (P < 0.01). Other MHC isoform (SM1 and SM2) mRNA expressions were not changed. The relative mRNA expressions of other phenotype markers (plasminogen activator inhibitor (PAI)-1 and beta-actin) were significantly decreased by SMemb-siRNA to 71% +/- 7.5% and 61% +/- 7.5%, respectively (P < 0.01). Expression of smooth muscle (SM) alpha-actin protein and cell proliferation was not changed by SMemb-siRNA. Thus, SMemb gene might be involved in the transcription of PAI-1 and beta-actin, but not involved in SM alpha-actin and cell proliferation in cultured VSM.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0910-8327
pubmed:author
pubmed:issnType
Print
pubmed:volume
22
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
41-7
pubmed:meshHeading
pubmed:year
2007
pubmed:articleTitle
RNA interference targeting embryonic myosin heavy chain isoform inhibited mRNA expressions of phenotype markers in rabbit cultured vascular smooth muscle cells.
pubmed:affiliation
First Department of Physiology, Unit of Physiological Science, School of Medicine, University of the Ryukyus, 207 Uehara, Nishihara, Okinawa, 903-0215, Japan.
pubmed:publicationType
Journal Article