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Cheng CW, Liao WL, Chen PM, Yu JC, Shiau HP, Hsieh YH, Lee HJ, Cheng YC, Wu PE, Shen CY. MiR-139 Modulates Cancer Stem Cell Function of Human Breast Cancer through Targeting CXCR4. Cancers (Basel) 2021; 13:cancers13112582. [PMID: 34070538 DOI: 10.3390/cancers13112582] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 02/25/2021] [Accepted: 02/26/2021] [Indexed: 12/14/2022] Open
Abstract
Elevated expression of C-X-C motif chemokine receptor 4 (CXCR4) correlates with chemotaxis, invasion, and cancer stem cell (CSC) properties within several solid-tumor malignancies. Recent studies reported that microRNA (miRNA) modulates the stemness of embryonic stem cells. We aimed to investigate the role of miRNA, via CXCR4-modulation, on CSC properties in breast cancer using cell lines and xenotransplantation mouse model and evaluated miR-193 levels in 191 patients with invasive ductal carcinoma. We validated miR-139 directly targets the 3'-untranslated region of CXCR4. Hoechst 33342 fluorescence-activated cell sorting (FACS) and sphere-forming assay were used to identify CSCs. MiR-139 suppressed breast CSCs with mesenchymal traits; led to decreased migration and invasion abilities through down-regulating CXCR4/p-Akt signaling. In lung cancer xenograft model of nude mice transplanted with human miR-139-carrying MDA-MB-231 cells, metastatic lung nodules were suppressed. Clinically, microdissected breast tumor tissues showed miR-139 reduction, compared to adjacent non-tumor tissues, that was significantly associated with worse clinicopathological features, including larger tumor size, advanced tumor stage and lymph node metastasis; moreover, reduced miR-139 level was predominately occurred in late-stage HER2-oreexpression tumors. Collectively, our findings highlight miR-139-mediated suppression of CXCR4/p-Akt signaling and thereby affected mesenchymal stem-cell genesis, indicating its potential as a therapeutic target for invasive breast cancer.
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Affiliation(s)
- Chun-Wen Cheng
- Institute of Medicine, Chung Shan Medical University, Taichung 40201, Taiwan
- Clinical Laboratory, Chung Shan Medical University Hospital, Taichung 40201, Taiwan
| | - Wen-Ling Liao
- Graduate Institute of Integrated Medicine, China Medical University, Taichung 40433, Taiwan
- Center for Personalized Medicine, China Medical University Hospital, Taichung 40433, Taiwan
| | - Po-Ming Chen
- Institute of Medicine, Chung Shan Medical University, Taichung 40201, Taiwan
| | - Jyh-Cherng Yu
- Department of Surgery, Tri-Service General Hospital, National Defense Medical College, Taipei 11490, Taiwan
| | - Hui-Ping Shiau
- Institute of Medicine, Chung Shan Medical University, Taichung 40201, Taiwan
| | - Yi-Hsien Hsieh
- Institute of Medicine, Chung Shan Medical University, Taichung 40201, Taiwan
| | - Huei-Jane Lee
- Department of Biochemistry, School of Medicine, Chung Shan Medical University, Taichung 40201, Taiwan
| | - Yu-Chun Cheng
- School of Medicine, Fu Jen Catholic University, New Taipei 24206, Taiwan
| | - Pei-Ei Wu
- Institute of Biomedical Sciences, Academia Sinica, Taipei 11529, Taiwan
| | - Chen-Yang Shen
- Institute of Biomedical Sciences, Academia Sinica, Taipei 11529, Taiwan
- Graduate Institute of Environmental Science, China Medical University, Taichung 40433, Taiwan
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