Author
Listed:
- Xi Jiang
(University of Cincinnati
Section of Hematology/Oncology, University of Chicago)
- Chao Hu
(University of Cincinnati
Section of Hematology/Oncology, University of Chicago
The First Affiliated Hospital Zhejiang University)
- Stephen Arnovitz
(Section of Hematology/Oncology, University of Chicago)
- Jason Bugno
(The University of Illinois)
- Miao Yu
(Howard Hughes Medical Institute, University of Chicago)
- Zhixiang Zuo
(University of Cincinnati
Section of Hematology/Oncology, University of Chicago
State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center)
- Ping Chen
(Section of Hematology/Oncology, University of Chicago)
- Hao Huang
(Section of Hematology/Oncology, University of Chicago)
- Bryan Ulrich
(Section of Hematology/Oncology, University of Chicago)
- Sandeep Gurbuxani
(University of Chicago)
- Hengyou Weng
(University of Cincinnati
Section of Hematology/Oncology, University of Chicago)
- Jennifer Strong
(University of Cincinnati)
- Yungui Wang
(University of Cincinnati
Section of Hematology/Oncology, University of Chicago
The First Affiliated Hospital Zhejiang University)
- Yuanyuan Li
(Section of Hematology/Oncology, University of Chicago)
- Justin Salat
(Section of Hematology/Oncology, University of Chicago)
- Shenglai Li
(Section of Hematology/Oncology, University of Chicago)
- Abdel G. Elkahloun
(National Human Genome Research Institute, NIH)
- Yang Yang
(The University of Illinois)
- Mary Beth Neilly
(Section of Hematology/Oncology, University of Chicago)
- Richard A. Larson
(Section of Hematology/Oncology, University of Chicago)
- Michelle M. Le Beau
(Section of Hematology/Oncology, University of Chicago)
- Tobias Herold
(University Hospital Grosshadern, Ludwig-Maximilians-Universität)
- Stefan K. Bohlander
(University of Auckland)
- Paul P. Liu
(National Human Genome Research Institute, NIH)
- Jiwang Zhang
(Oncology Institute, Cardinal Bernardin Cancer Center, Loyola University Medical Center)
- Zejuan Li
(Section of Hematology/Oncology, University of Chicago
University of Chicago)
- Chuan He
(Howard Hughes Medical Institute, University of Chicago)
- Jie Jin
(The First Affiliated Hospital Zhejiang University)
- Seungpyo Hong
(The University of Illinois
Underwood International College, Yonsei University)
- Jianjun Chen
(University of Cincinnati
Section of Hematology/Oncology, University of Chicago)
Abstract
MicroRNAs are subject to precise regulation and have key roles in tumorigenesis. In contrast to the oncogenic role of miR-22 reported in myelodysplastic syndrome (MDS) and breast cancer, here we show that miR-22 is an essential anti-tumour gatekeeper in de novo acute myeloid leukaemia (AML) where it is significantly downregulated. Forced expression of miR-22 significantly suppresses leukaemic cell viability and growth in vitro, and substantially inhibits leukaemia development and maintenance in vivo. Mechanistically, miR-22 targets multiple oncogenes, including CRTC1, FLT3 and MYCBP, and thus represses the CREB and MYC pathways. The downregulation of miR-22 in AML is caused by TET1/GFI1/EZH2/SIN3A-mediated epigenetic repression and/or DNA copy-number loss. Furthermore, nanoparticles carrying miR-22 oligos significantly inhibit leukaemia progression in vivo. Together, our study uncovers a TET1/GFI1/EZH2/SIN3A/miR-22/CREB-MYC signalling circuit and thereby provides insights into epigenetic/genetic mechanisms underlying the pathogenesis of AML, and also highlights the clinical potential of miR-22-based AML therapy.
Suggested Citation
Xi Jiang & Chao Hu & Stephen Arnovitz & Jason Bugno & Miao Yu & Zhixiang Zuo & Ping Chen & Hao Huang & Bryan Ulrich & Sandeep Gurbuxani & Hengyou Weng & Jennifer Strong & Yungui Wang & Yuanyuan Li & J, 2016.
"miR-22 has a potent anti-tumour role with therapeutic potential in acute myeloid leukaemia,"
Nature Communications, Nature, vol. 7(1), pages 1-15, September.
Handle:
RePEc:nat:natcom:v:7:y:2016:i:1:d:10.1038_ncomms11452
DOI: 10.1038/ncomms11452
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