Title |
The mTORC1 Inhibitor Everolimus Prevents and Treats Eμ-Myc Lymphoma by Restoring Oncogene-Induced Senescence
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Published in |
Cancer Discovery, January 2013
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DOI | 10.1158/2159-8290.cd-12-0404 |
Pubmed ID | |
Authors |
Meaghan Wall, Gretchen Poortinga, Kym L. Stanley, Ralph K. Lindemann, Michael Bots, Christopher J. Chan, Megan J. Bywater, Kathryn M. Kinross, Megan V. Astle, Kelly Waldeck, Katherine M. Hannan, Jake Shortt, Mark J. Smyth, Scott W. Lowe, Ross D. Hannan, Richard B. Pearson, Ricky W. Johnstone, Grant A. McArthur |
Abstract |
MYC deregulation is common in human cancer. IG-MYC translocations that are modeled in Eμ-Myc mice occur in almost all cases of Burkitt lymphoma as well as in other B-cell lymphoproliferative disorders. Deregulated expression of MYC results in increased mTOR complex 1 (mTORC1) signaling. As tumors with mTORC1 activation are sensitive to mTORC1 inhibition, we used everolimus, a potent and specific mTORC1 inhibitor, to test the requirement for mTORC1 in the initiation and maintenance of Eμ-Myc lymphoma. Everolimus selectively cleared premalignant B cells from the bone marrow and spleen, restored a normal pattern of B-cell differentiation, and strongly protected against lymphoma development. Established Eμ-Myc lymphoma also regressed after everolimus therapy. Therapeutic response correlated with a cellular senescence phenotype and induction of p53 activity. Therefore, mTORC1-dependent evasion of senescence is critical for cellular transformation and tumor maintenance by MYC in B lymphocytes. |
X Demographics
Geographical breakdown
Country | Count | As % |
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United States | 3 | 100% |
Demographic breakdown
Type | Count | As % |
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Members of the public | 2 | 67% |
Scientists | 1 | 33% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
United States | 2 | 3% |
Germany | 1 | 2% |
Unknown | 59 | 95% |
Demographic breakdown
Readers by professional status | Count | As % |
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Researcher | 17 | 27% |
Student > Ph. D. Student | 10 | 16% |
Professor > Associate Professor | 5 | 8% |
Student > Master | 4 | 6% |
Student > Bachelor | 3 | 5% |
Other | 11 | 18% |
Unknown | 12 | 19% |
Readers by discipline | Count | As % |
---|---|---|
Biochemistry, Genetics and Molecular Biology | 18 | 29% |
Agricultural and Biological Sciences | 16 | 26% |
Medicine and Dentistry | 11 | 18% |
Computer Science | 1 | 2% |
Business, Management and Accounting | 1 | 2% |
Other | 2 | 3% |
Unknown | 13 | 21% |