Title |
RETRACTED ARTICLE: MiR-362-5p promotes the malignancy of chronic myelocytic leukaemia via down-regulation of GADD45α
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Published in |
Molecular Cancer, November 2015
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DOI | 10.1186/s12943-015-0465-3 |
Pubmed ID | |
Authors |
Peng Yang, Fang Ni, Rui-qing Deng, Guo Qiang, Hua Zhao, Ming-zhen Yang, Xin-yi Wang, You-zhi Xu, Li Chen, Dan-lei Chen, Zhi-jun Chen, Li-xin Kan, Si-Ying Wang |
Abstract |
MicroRNAs (miR, miRNAs) play pivotal roles in numerous physiological and pathophysiological contexts. We investigated whether miR-362-5p act as an oncogene in chronic myeloid leukaemia (CML) and aimed to understand its potential underlying mechanisms. We compared the miR-362-5p expression levels between CML and non-CML cell lines, and between fresh blood samples from CML patients and normal healthy controls using quantitative real-time PCR (qPCR). Cell counting kit-8 (CCK-8) and Annexin V-FITC/PI analyses were used to measure the effects of miR-362-5p on proliferation and apoptosis, and Transwell assays were used to evaluate migration and invasion. A xenograft model was used to examine in vivo tumourigenicity. The potential target of miR-362-5p was confirmed by a luciferase reporter assay, qPCR and western blotting. Involvement of the JNK1/2 and P38 pathways was investigated by western blotting. miR-362-5p was up-regulated in CML cell lines and fresh blood samples from CML patients, and was associated with Growth arrest and DNA damage-inducible (GADD)45α down-regulation. Inhibition of miR-362-5p simultaneously repressed tumour growth and up-regulated GADD45α expression in a xenograft model. Consistently, the knockdown of GADD45α expression partially neutralized the effects of miR-362-5p inhibition. Furthermore study suggested that GADD45α mediated downstream the effects of miR-362-5p, which might indirectly regulates the activation of the JNK1/2 and P38 signalling pathways. miR-362-5p acts as an oncomiR that down-regulates GADD45α, which consequently activates the JNK1/2 and P38 signalling. This finding provides novel insights into CML leukaemogenesis and may help identify new diagnostic and therapeutic targets. |
X Demographics
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Unknown | 2 | 100% |
Demographic breakdown
Type | Count | As % |
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Members of the public | 2 | 100% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
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Unknown | 24 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
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Student > Ph. D. Student | 6 | 25% |
Student > Master | 4 | 17% |
Researcher | 3 | 13% |
Student > Doctoral Student | 2 | 8% |
Student > Bachelor | 2 | 8% |
Other | 4 | 17% |
Unknown | 3 | 13% |
Readers by discipline | Count | As % |
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Biochemistry, Genetics and Molecular Biology | 8 | 33% |
Agricultural and Biological Sciences | 7 | 29% |
Medicine and Dentistry | 3 | 13% |
Pharmacology, Toxicology and Pharmaceutical Science | 2 | 8% |
Environmental Science | 1 | 4% |
Other | 0 | 0% |
Unknown | 3 | 13% |