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Zeng Y, Que T, Lin J, Zhan Z, Xu A, Wu Z, Xie C, Luo J, Ding S, Long H, Zhang X, Song Y. Oncogenic ZEB2/miR-637/HMGA1 signaling axis targeting vimentin promotes the malignant phenotype of glioma. MOLECULAR THERAPY. NUCLEIC ACIDS 2021; 23:769-782. [PMID: 33614228 PMCID: PMC7868719 DOI: 10.1016/j.omtn.2020.12.029] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Accepted: 12/30/2020] [Indexed: 12/11/2022]
Abstract
Glioma is the most common primary tumor of the central nervous system. We previously confirmed that zinc finger E-box binding homeobox (ZEB) 2 promotes the malignant progression of glioma, while microRNA-637 (miR-637) is associated with favorable prognosis in glioma. This study aimed to investigate the potential interaction between ZEB2 and miR-637 and its downstream signaling pathway in glioma. The results revealed that ZEB2 could directly bind to the E-box elements in the miR-637 promoter and promote cell proliferation, migration, and invasion via miR-637 downregulation. Subsequent screening confirmed that HMGA1 was a direct target of miR-637, while miR-637 could drive the malignant phenotype of glioma by suppressing HMGA1 both in vitro and in vivo. Furthermore, interaction between cytoplasmic HMGA1 and vimentin was observed, and vimentin inhibition could abolish increased migration and invasion induced by HMGA1 overexpression. Both HMGA1 and vimentin were associated with an unfavorable prognosis in glioma. Additionally, upregulated HMGA1 and vimentin were found in isocitrate dehydrogenase (IDH) wild-type and 1p/19q non-codeletion diffusely infiltrating glioma. In conclusion, we identified an oncogenic ZEB2/miR-637/HMGA1 signaling axis targeting vimentin that promotes both migration and invasion in glioma.
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Affiliation(s)
- Yu Zeng
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510375, People's Republic of China.,Department of Cell Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, 510375, People's Republic of China
| | - Tianshi Que
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510375, People's Republic of China
| | - Jie Lin
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510375, People's Republic of China
| | - Zhengming Zhan
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510375, People's Republic of China
| | - Anqi Xu
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510375, People's Republic of China
| | - Zhiyong Wu
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510375, People's Republic of China
| | - Cheng Xie
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510375, People's Republic of China
| | - Jie Luo
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510375, People's Republic of China
| | - Shengfeng Ding
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510375, People's Republic of China
| | - Hao Long
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510375, People's Republic of China
| | - Xian Zhang
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510375, People's Republic of China
| | - Ye Song
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510375, People's Republic of China
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Vaskova E, Ikeda G, Tada Y, Wahlquist C, Mercola M, Yang PC. Sacubitril/Valsartan Improves Cardiac Function and Decreases Myocardial Fibrosis Via Downregulation of Exosomal miR-181a in a Rodent Chronic Myocardial Infarction Model. J Am Heart Assoc 2020; 9:e015640. [PMID: 32538237 PMCID: PMC7670523 DOI: 10.1161/jaha.119.015640] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Accepted: 04/30/2020] [Indexed: 01/12/2023]
Abstract
Background Exosomes are small extracellular vesicles that function as intercellular messengers and effectors. Exosomal cargo contains regulatory small molecules, including miRNAs, mRNAs, lncRNAs, and small peptides that can be modulated by different pathological stimuli to the cells. One of the main mechanisms of action of drug therapy may be the altered production and/or content of the exosomes. Methods and Results We studied the effects on exosome production and content by neprilysin inhibitor/angiotensin receptor blockers, sacubitril/valsartan and valsartan alone, using human-induced pluripotent stem cell-derived cardiomyocytes under normoxic and hypoxic injury model in vitro, and assessed for physiologic correlation using an ischemic myocardial injury rodent model in vivo. We demonstrated that the treatment with sacubitril/valsartan and valsartan alone resulted in the increased production of exosomes by induced pluripotent stem cell-derived cardiomyocytes in vitro in both conditions as well as in the rat plasma in vivo. Next-generation sequencing of these exosomes exhibited downregulation of the expression of rno-miR-181a in the sacubitril/valsartan treatment group. In vivo studies employing chronic rodent myocardial injury model demonstrated that miR-181a antagomir has a beneficial effect on cardiac function. Subsequently, immunohistochemical and molecular studies suggested that the downregulation of miR-181a resulted in the attenuation of myocardial fibrosis and hypertrophy, restoring the injured rodent heart after myocardial infarction. Conclusions We demonstrate that an additional mechanism of action of the pleiotropic effects of sacubitril/valsartan may be mediated by the modulation of the miRNA expression level in the exosome payload.
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Affiliation(s)
- Evgeniya Vaskova
- Cardiovascular InstituteStanford University School of MedicineStanfordCA
- Division of Cardiovascular MedicineDepartment of MedicineStanford University School of MedicineStanfordCA
| | - Gentaro Ikeda
- Cardiovascular InstituteStanford University School of MedicineStanfordCA
- Division of Cardiovascular MedicineDepartment of MedicineStanford University School of MedicineStanfordCA
| | - Yuko Tada
- Cardiovascular InstituteStanford University School of MedicineStanfordCA
- Division of Cardiovascular MedicineDepartment of MedicineStanford University School of MedicineStanfordCA
| | | | - Marc Mercola
- Cardiovascular InstituteStanford University School of MedicineStanfordCA
| | - Phillip C. Yang
- Cardiovascular InstituteStanford University School of MedicineStanfordCA
- Division of Cardiovascular MedicineDepartment of MedicineStanford University School of MedicineStanfordCA
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