rdf:type |
|
lifeskim:mentions |
|
pubmed:issue |
1
|
pubmed:dateCreated |
2005-7-18
|
pubmed:abstractText |
ONYX-015 is an E1B-55K-deleted adenovirus that has promising clinical activity as a cancer therapy. However, many tumor cells fail to support ONYX-015 oncolytic replication. E1B-55K functions include p53 degradation, RNA export, and host protein shutoff. Here, we show that resistant tumor cell lines fail to provide the RNA export functions of E1B-55K necessary for ONYX-015 replication; viral 100K mRNA export is necessary for host protein shutoff. However, heat shock rescues late viral RNA export and renders refractory tumor cells permissive to ONYX-015. These data indicate that heat shock and late adenoviral RNAs may converge upon a common mechanism for their export. Moreover, these data suggest that the concomitant induction of a heat shock response could significantly improve ONYX-015 cancer therapy.
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pubmed:commentsCorrections |
|
pubmed:language |
eng
|
pubmed:journal |
|
pubmed:citationSubset |
IM
|
pubmed:chemical |
|
pubmed:status |
MEDLINE
|
pubmed:month |
Jul
|
pubmed:issn |
1535-6108
|
pubmed:author |
|
pubmed:issnType |
Print
|
pubmed:volume |
8
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
61-74
|
pubmed:dateRevised |
2008-11-21
|
pubmed:meshHeading |
pubmed-meshheading:16023599-Adenoviridae,
pubmed-meshheading:16023599-Adenovirus E1B Proteins,
pubmed-meshheading:16023599-Antineoplastic Agents,
pubmed-meshheading:16023599-Cells, Cultured,
pubmed-meshheading:16023599-Cytopathogenic Effect, Viral,
pubmed-meshheading:16023599-Drug Resistance, Neoplasm,
pubmed-meshheading:16023599-Hot Temperature,
pubmed-meshheading:16023599-Humans,
pubmed-meshheading:16023599-Neoplasms,
pubmed-meshheading:16023599-Phenotype,
pubmed-meshheading:16023599-RNA, Viral,
pubmed-meshheading:16023599-RNA Transport,
pubmed-meshheading:16023599-Shock,
pubmed-meshheading:16023599-Viral Nonstructural Proteins,
pubmed-meshheading:16023599-Virus Replication
|
pubmed:year |
2005
|
pubmed:articleTitle |
Heat shock phenocopies E1B-55K late functions and selectively sensitizes refractory tumor cells to ONYX-015 oncolytic viral therapy.
|
pubmed:affiliation |
Cancer Research Institute, University of California, San Francisco, CA 94115, USA. coshea@cc.ucsf.edu
|
pubmed:publicationType |
Journal Article,
Comparative Study,
Research Support, Non-U.S. Gov't
|