Title |
Genetic and Pharmacologic Inhibition of β-Catenin Targets Imatinib-Resistant Leukemia Stem Cells in CML
|
---|---|
Published in |
Cell Stem Cell, April 2012
|
DOI | 10.1016/j.stem.2012.02.017 |
Pubmed ID | |
Authors |
Florian H. Heidel, Lars Bullinger, Zhaohui Feng, Zhu Wang, Tobias A. Neff, Lauren Stein, Demetrios Kalaitzidis, Steven W. Lane, Scott A. Armstrong |
Abstract |
A key characteristic of hematopoietic stem cells (HSCs) is the ability to self-renew. Genetic deletion of β-catenin during fetal HSC development leads to impairment of self-renewal while β-catenin is dispensable in fully developed adult HSCs. Whether β-catenin is required for maintenance of fully developed CML leukemia stem cells (LSCs) is unknown. Here, we use a conditional mouse model to show that deletion of β-catenin after CML initiation does not lead to a significant increase in survival. However, deletion of β-catenin synergizes with imatinib (IM) to delay disease recurrence after imatinib discontinuation and to abrogate CML stem cells. These effects can be mimicked by pharmacologic inhibition of β-catenin via modulation of prostaglandin signaling. Treatment with the cyclooxygenase inhibitor indomethacin reduces β-catenin levels and leads to a reduction in LSCs. In conclusion, inhibiting β-catenin by genetic inactivation or pharmacologic modulation is an effective combination therapy with imatinib and targets CML stem cells. |
X Demographics
Geographical breakdown
Country | Count | As % |
---|---|---|
United States | 2 | 67% |
Saudi Arabia | 1 | 33% |
Demographic breakdown
Type | Count | As % |
---|---|---|
Members of the public | 2 | 67% |
Science communicators (journalists, bloggers, editors) | 1 | 33% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
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Australia | 2 | 1% |
Germany | 1 | <1% |
Netherlands | 1 | <1% |
Austria | 1 | <1% |
Portugal | 1 | <1% |
United Kingdom | 1 | <1% |
Canada | 1 | <1% |
Argentina | 1 | <1% |
United States | 1 | <1% |
Other | 0 | 0% |
Unknown | 144 | 94% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Ph. D. Student | 36 | 23% |
Researcher | 31 | 20% |
Student > Master | 14 | 9% |
Other | 11 | 7% |
Student > Doctoral Student | 10 | 6% |
Other | 26 | 17% |
Unknown | 26 | 17% |
Readers by discipline | Count | As % |
---|---|---|
Agricultural and Biological Sciences | 54 | 35% |
Medicine and Dentistry | 29 | 19% |
Biochemistry, Genetics and Molecular Biology | 27 | 18% |
Pharmacology, Toxicology and Pharmaceutical Science | 5 | 3% |
Immunology and Microbiology | 3 | 2% |
Other | 10 | 6% |
Unknown | 26 | 17% |