Title |
miR-150 Suppresses the Proliferation and Tumorigenicity of Leukemia Stem Cells by Targeting the Nanog Signaling Pathway
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Published in |
Frontiers in Pharmacology, November 2016
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DOI | 10.3389/fphar.2016.00439 |
Pubmed ID | |
Authors |
Dan-dan Xu, Peng-jun Zhou, Ying Wang, Yi Zhang, Rong Zhang, Li Zhang, Su-hong Chen, Wu-yu Fu, Bi-bo Ruan, Hai-peng Xu, Chao-zhi Hu, Lu Tian, Jin-hong Qin, Sheng Wang, Xiao Wang, Qiu-ying Liu, Zhe Ren, Xue-kui Gu, Yao-he Li, Zhong Liu, Yi-fei Wang |
Abstract |
Proliferation, a key feature of cancer cells, accounts for the majority of cancer-related diseases resulting in mortality. MicroRNAs (miRNAs) plays important post-transcriptional modulation roles by acting on multiple signaling pathways, but the underlying mechanism in proliferation and tumorigenicity is unclear. Here, we identified the role of miR-150 in proliferation and tumorigenicity in leukemia stem cells (LSCs; CD34+CD38- cells). miR-150 expression was significantly down-regulated in LSCs from leukemia cell lines and clinical samples. Functional assays demonstrated that increased miR-150 expression inhibited proliferation and clonal and clonogenic growth, enhanced chemosensitivity, and attenuated tumorigenic activity of LSCs in vitro. Transplantation animal studies revealed that miR-150 overexpression progressively abrogates tumor growth. Immunohistochemistry assays demonstrated that miR-150 overexpression enhanced caspase-3 level and reduced Ki-67 level. Moreover, luciferase reporter assays indicated Nanog is a direct and functional target of miR-150. Nanog silencing using small interfering RNA recapitulated anti-proliferation and tumorigenicity inhibition effects. Furthermore, miR-150 directly down-regulated the expression of other cancer stem cell factors including Notch2 and CTNNB1. These results provide insights into the specific biological behavior of miR-150 in regulating LSC proliferation and tumorigenicity. Targeting this miR-150/Nanog axis would be a helpful therapeutic strategy to treat acute myeloid leukemia. |
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Country | Count | As % |
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Unknown | 3 | 100% |
Demographic breakdown
Type | Count | As % |
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Scientists | 2 | 67% |
Members of the public | 1 | 33% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
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Unknown | 19 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
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Other | 2 | 11% |
Researcher | 2 | 11% |
Student > Ph. D. Student | 2 | 11% |
Student > Bachelor | 1 | 5% |
Student > Doctoral Student | 1 | 5% |
Other | 2 | 11% |
Unknown | 9 | 47% |
Readers by discipline | Count | As % |
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Biochemistry, Genetics and Molecular Biology | 6 | 32% |
Unspecified | 1 | 5% |
Agricultural and Biological Sciences | 1 | 5% |
Medicine and Dentistry | 1 | 5% |
Unknown | 10 | 53% |