Linked Life Data

17033717

Source:http://linkedlifedata.com/resource/pubmed/id/17033717

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
10
pubmed:dateCreated
2006-10-11
pubmed:abstractText
Changes in drug sensitivity in Bcl-XL small interfering RNA (siRNA) transfected Hepg2 hepatocellular carcinoma cells were investigated in this study. Bcl-XL siRNA and negative siRNA expression vector were constructed and stably transfected into Hepg2 cells. Reverse transcription (RT)-PCR, western blot and immunofluorescence were used to detect the target gene expression at mRNA and protein levels. Drug sensitivity of the cells to 5-fluorouracil (5-FU) and hydroxycamptothecin (HCPT) were evaluated with MTT. The Bcl-XL mRNA and protein expression levels in Bcl-XL siRNA transfectants were reduced compared with negative siRNA transfectants or mock cells. MTT results showed that Bcl-XL siRNA transfected cells have a higher cell inhibition rate than negative vector transfected cells or untreated cells after treatment with 13, 130, 1300 and 13,000 mg/L of 5-FU. Bcl-XL siRNA transfected cells also showed increased drug-sensitivity compared with negative vector transfected cells or untreated cells after treatment with 0.18, 0.36, 0.72 and 1.44 mg/L HCPT. Flow cytometry (FCM) results demonstrated that the sub-G1 population increased in the Bcl-XL siRNA group, compared with the negative siRNA group and untreated control group, after the addition of 5-FU (1300 mg/L) and HCPT (0.72 mg/L). siRNA targeting Bcl-XL gene can specifically down-regulate Bcl-XL expression in Hepg2 cells, and can increase spontaneous cell apoptosis and sensitize cells to 5-FU or HCPT.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
1672-9145
pubmed:author
pubmed:issnType
Print
pubmed:volume
38
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
704-10
pubmed:meshHeading
pubmed:year
2006
pubmed:articleTitle
Bcl-XL small interfering RNA enhances sensitivity of Hepg2 hepatocellular carcinoma cells to 5-fluorouracil and hydroxycamptothecin.
pubmed:affiliation
Institute of Pharmacy and Pharmacology, Nanhua University, Hengyang 421001, China. lei_xiaoyong@yahoo.com.cn
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't