Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2001-11-12
pubmed:abstractText
The expression of CAS is reported to be upregulated in a variety of human tumor cells, and such expression correlates with the development of tumors. CAS also plays a role in apoptosis. We investigated whether CAS expression affects the susceptibility of tumor cells to IFN-gamma-induced apoptosis. Our data show that IFN-gamma treatment induces CAS expression in HT-29 tumor cells. IFN-gamma-induced gene expression is primarily mediated by the transcriptional factor, IRF-1. Our data show that IRF-1 mediates IFN-gamma-induced CAS expression. Transfection of HT-29 cells with CAS expression vector did not induce apoptosis of cells; nevertheless, CAS overexpression greatly enhanced IFN-gamma-induced apoptosis of cells. CPP32 is regarded as one of the central apoptosis executioner molecules. CAS overexpression enhances IFN-gamma-induced CPP32 expression. These results indicate that tumor cells highly expressing CAS may be more susceptible to apoptosis induced by reagents that are capable of inducing CAS expression. Thus, CAS may be a target for the elimination of tumors.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
1522-4724
pubmed:author
pubmed:copyrightInfo
Copyright 2001 Academic Press.
pubmed:issnType
Print
pubmed:volume
4
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
353-8
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed-meshheading:11703094-Apoptosis, pubmed-meshheading:11703094-Blotting, Northern, pubmed-meshheading:11703094-Blotting, Western, pubmed-meshheading:11703094-Cell Death, pubmed-meshheading:11703094-Cellular Apoptosis Susceptibility Protein, pubmed-meshheading:11703094-Cloning, Molecular, pubmed-meshheading:11703094-DNA Fragmentation, pubmed-meshheading:11703094-DNA-Binding Proteins, pubmed-meshheading:11703094-Dose-Response Relationship, Drug, pubmed-meshheading:11703094-Genetic Vectors, pubmed-meshheading:11703094-HT29 Cells, pubmed-meshheading:11703094-Humans, pubmed-meshheading:11703094-Interferon Regulatory Factor-1, pubmed-meshheading:11703094-Interferon-gamma, pubmed-meshheading:11703094-Kinetics, pubmed-meshheading:11703094-Phosphoproteins, pubmed-meshheading:11703094-RNA, Messenger, pubmed-meshheading:11703094-Time Factors, pubmed-meshheading:11703094-Transcription, Genetic, pubmed-meshheading:11703094-Transfection
pubmed:year
2001
pubmed:articleTitle
IRF-1-mediated CAS expression enhances interferon-gamma-induced apoptosis of HT-29 colon adenocarcinoma cells.
pubmed:affiliation
Institute of Zoology, Academia Sinica, Taipei 11529, Taiwan, Republic of China.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't