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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2006-10-3
pubmed:abstractText
Cancer cells are typically characterized by increased resistance towards apoptosis. Livin (alternatively called ML-IAP or KIAP) is an anti-apoptotic protein which is expressed in several cancer forms. Using real-time reverse transcription-polymerase chain reaction (RT-PCR), we confirmed livin expression in a significant portion of non-small cell lung cancer (NSCLC) tissue samples and, in addition, detected livin expression in a number of NSCLC cell lines. In order to elucidate whether livin contributes to the apoptotic resistance of lung cancer cells, we silenced endogenous livin expression in a panel of cancer-derived NSCLC cell lines by RNA interference (RNAi). We observed that the targeted inhibition of livin strongly sensitized NSCLC cells to different pro-apoptotic stimuli, such as UV-irradiation or the chemotherapeutic drug etoposide. In addition, long-term silencing of livin blocked the outgrowth of NSCLC cells in colony formation assays. These effects of small interfering (si)RNA were specific for livin-expressing tumor cells. Our results indicate that Livin is an important contributor to the apoptosis resistance of NSCLC cells and may serve as a novel molecular target for therapeutic inhibition in NSCLC.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0169-5002
pubmed:author
pubmed:issnType
Print
pubmed:volume
54
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
135-42
pubmed:meshHeading
pubmed:year
2006
pubmed:articleTitle
The anti-apoptotic livin gene is an important determinant for the apoptotic resistance of non-small cell lung cancer cells.
pubmed:affiliation
Deutsches Krebsforschungszentrum, Molekulare Therapie Virus-assoziierter Tumore (F065), Im Neuenheimer Feld 242, D-69120 Heidelberg, Germany.
pubmed:publicationType
Journal Article