rdf:type |
|
lifeskim:mentions |
umls-concept:C0014597,
umls-concept:C0017262,
umls-concept:C0017337,
umls-concept:C0035235,
umls-concept:C0086418,
umls-concept:C0185117,
umls-concept:C0205263,
umls-concept:C0521346,
umls-concept:C1159816,
umls-concept:C1415884,
umls-concept:C2911684
|
pubmed:issue |
3
|
pubmed:dateCreated |
2000-4-27
|
pubmed:abstractText |
By means of differential display reverse-transcriptase polymerase chain reaction, increased expression of the mRNA encoding the anti-apoptosis gene IEX-1L was found in respiratory epithelial cells infected with respiratory syncytial virus (RSV). IEX-1L mRNA expression increased 5-7-fold in RSV-infected cells at 72 h after infection but remained unchanged in cells exposed to irradiated, replication-incompetent RSV. Because IEX-1L is reported to protect cells from apoptosis induced by tumor necrosis factor (TNF)-alpha, the effect of TNF-alpha on epithelial cell apoptosis in the context of RSV infection was determined. Epithelial cells were exposed to vehicle, RSV, or irradiated RSV for 72 h, and then TNF-alpha was added to appropriate cultures. Cytochemical staining of cellular DNA with 4,6-diamidino-2-phenylindole demonstrated TNF-alpha-induced apoptosis in 23.4% of control cells but only 5% of RSV-infected cells. These data show that RSV infection protects epithelial cells from TNF-alpha-induced apoptosis and that this effect is temporally associated with IEX-1L gene expression.
|
pubmed:language |
eng
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pubmed:journal |
|
pubmed:citationSubset |
AIM
|
pubmed:chemical |
|
pubmed:status |
MEDLINE
|
pubmed:month |
Mar
|
pubmed:issn |
0022-1899
|
pubmed:author |
|
pubmed:issnType |
Print
|
pubmed:volume |
181
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
824-30
|
pubmed:dateRevised |
2006-11-15
|
pubmed:meshHeading |
pubmed-meshheading:10720500-Adenoviridae,
pubmed-meshheading:10720500-Apoptosis,
pubmed-meshheading:10720500-Apoptosis Regulatory Proteins,
pubmed-meshheading:10720500-Epithelial Cells,
pubmed-meshheading:10720500-Gene Expression Regulation,
pubmed-meshheading:10720500-Humans,
pubmed-meshheading:10720500-Immediate-Early Proteins,
pubmed-meshheading:10720500-Membrane Glycoproteins,
pubmed-meshheading:10720500-Membrane Proteins,
pubmed-meshheading:10720500-Neoplasm Proteins,
pubmed-meshheading:10720500-RNA, Messenger,
pubmed-meshheading:10720500-Respiratory Syncytial Viruses,
pubmed-meshheading:10720500-Tumor Cells, Cultured,
pubmed-meshheading:10720500-Tumor Necrosis Factor-alpha,
pubmed-meshheading:10720500-Up-Regulation
|
pubmed:year |
2000
|
pubmed:articleTitle |
Respiratory syncytial virus infection induces expression of the anti-apoptosis gene IEX-1L in human respiratory epithelial cells.
|
pubmed:affiliation |
Department of Pediatrics, Division of Infectious Disease, Upstate Medical University, Syracuse, NY 13210, USA. domachoj@vax.cs.hscsyr.edu
|
pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
|