rdf:type |
|
lifeskim:mentions |
|
pubmed:issue |
3
|
pubmed:dateCreated |
2005-2-11
|
pubmed:abstractText |
The stability of wild-type p53 is critical for its apoptotic function. In some cancers, wild-type p53 is inactivated by interaction with viral and cellular proteins, and restoration of its activity has therapeutic potential. Here, we identify homeobox Msx1 as a p53-interacting protein and show its novel function as a p53 regulator. Overexpression of homeobox Msx1 induced apoptosis of cancer cells harboring nonfunctional wild-type p53 and suppressed growth of human tumor xenografts in nude mice. The homeodomain of Msx1 functions as a protein-protein interacting motif rather than a DNA-binding domain and is essential for stabilization, nuclear accumulation, and apoptotic function of wild-type p53. The identification of a novel function of Msx1 as a p53 regulator may open new avenues for developing improved molecular therapies for tumors with a nonmutational p53 inactivation mechanism.
|
pubmed:language |
eng
|
pubmed:journal |
|
pubmed:citationSubset |
IM
|
pubmed:chemical |
|
pubmed:status |
MEDLINE
|
pubmed:month |
Feb
|
pubmed:issn |
0008-5472
|
pubmed:author |
|
pubmed:issnType |
Print
|
pubmed:day |
1
|
pubmed:volume |
65
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
749-57
|
pubmed:dateRevised |
2006-11-15
|
pubmed:meshHeading |
pubmed-meshheading:15705871-Animals,
pubmed-meshheading:15705871-Apoptosis,
pubmed-meshheading:15705871-Cell Growth Processes,
pubmed-meshheading:15705871-HeLa Cells,
pubmed-meshheading:15705871-Homeodomain Proteins,
pubmed-meshheading:15705871-Humans,
pubmed-meshheading:15705871-MSX1 Transcription Factor,
pubmed-meshheading:15705871-Mice,
pubmed-meshheading:15705871-Neoplasm Transplantation,
pubmed-meshheading:15705871-Nuclear Localization Signals,
pubmed-meshheading:15705871-Protein Structure, Tertiary,
pubmed-meshheading:15705871-Transfection,
pubmed-meshheading:15705871-Transplantation, Heterologous,
pubmed-meshheading:15705871-Tumor Suppressor Protein p53
|
pubmed:year |
2005
|
pubmed:articleTitle |
Homeobox Msx1 interacts with p53 tumor suppressor and inhibits tumor growth by inducing apoptosis.
|
pubmed:affiliation |
Molecular Therapy Research Center, Sungkyunkwan University, Samsung Medical Center Annex 8F, 50 Ilwon-dong, Kangnam-ku, Seoul 135-710, Korea.
|
pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
|