Title |
Mutant p53 – Heat Shock Response Oncogenic Cooperation: A New Mechanism of Cancer Cell Survival
|
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Published in |
Frontiers in endocrinology, April 2015
|
DOI | 10.3389/fendo.2015.00053 |
Pubmed ID | |
Authors |
Evguenia M. Alexandrova, Natalia D. Marchenko |
Abstract |
The main tumor suppressor function of p53 as a "guardian of the genome" is to respond to cellular stress by transcriptional activation of apoptosis, growth arrest, or senescence in damaged cells. Not surprisingly, mutations in the p53 gene are the most frequent genetic alteration in human cancers. Importantly, mutant p53 (mutp53) proteins not only lose their wild-type tumor suppressor activity but also can actively promote tumor development. Two main mechanisms accounting for mutp53 proto-oncogenic activity are inhibition of the wild-type p53 in a dominant-negative fashion and gain of additional oncogenic activities known as gain-of-function (GOF). Here, we discuss a novel mechanism of mutp53 GOF, which relies on its oncogenic cooperation with the heat shock machinery. This coordinated adaptive mechanism renders cancer cells more resistant to proteotoxic stress and provides both, a strong survival advantage to cancer cells and a promising means for therapeutic intervention. |
X Demographics
Geographical breakdown
Country | Count | As % |
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Unknown | 1 | 100% |
Demographic breakdown
Type | Count | As % |
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Members of the public | 1 | 100% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
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Unknown | 48 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
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Student > Ph. D. Student | 12 | 25% |
Student > Bachelor | 7 | 15% |
Researcher | 6 | 13% |
Professor | 4 | 8% |
Student > Doctoral Student | 3 | 6% |
Other | 6 | 13% |
Unknown | 10 | 21% |
Readers by discipline | Count | As % |
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Biochemistry, Genetics and Molecular Biology | 19 | 40% |
Agricultural and Biological Sciences | 11 | 23% |
Medicine and Dentistry | 4 | 8% |
Chemistry | 2 | 4% |
Psychology | 1 | 2% |
Other | 1 | 2% |
Unknown | 10 | 21% |