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Zhou ZF, Wei Z, Yao JC, Liu SY, Wang F, Wang Z, Chen XF, Lin H, Ye Y, Zheng QF. CircRNA_102179 promotes the proliferation, migration and invasion in non-small cell lung cancer cells by regulating miR-330-5p/HMGB3 axis. Pathol Res Pract 2020; 216:153144. [PMID: 32911346 DOI: 10.1016/j.prp.2020.153144] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2020] [Revised: 07/14/2020] [Accepted: 07/24/2020] [Indexed: 12/26/2022]
Abstract
Non-small cell lung cancer (NSCLC) accounting for 85 % of all lung cancer was one of the main causes of death worldwide. In this study, we investigated the role of circRNA_102179 in NSCLC development. The levels of circRNA_102179 in NSCLC tissues and cell lines were determined by quantitative real-time PCR assay (qRT-PCR). CCK8 and colony formation assays were applied to explore the effect of circRNA_102179 on the growth of NSCLC cells in vitro. Transwell assay was utilized to analyze the impact of circRNA_102179 on the migration and invasion of NSCLC cells. Target prediction and luciferase reporter assay were used to identify the interacting miRNA of circRNA_102179. The interaction among circRNA_102179/ miR-330-5p/HMGB3 was further validated by colony formation and Transwell invasion assays. Finally, the mouse xenograft NSCLC model was used to explore the role of circRNA_102179 in the tumor growth of NSCLC cells in vivo. CircRNA_102179 was overexpressed in NSCLC tissues and cells compared with normal lung tissues and human bronchial epithelial cells (HBEs). The down-regulation of circRNA_102179 markedly reduced the proliferation, migration, and invasion of NSCLC cells. Moreover, down-expression of circRNA_102179 significantly increased the level of miR-330-5p/HMGB3 in NSCLC cells. Further functional experiments indicated that over-expression of miR-330-5p reversed the inhibitory effect of circRNA_102179 on NSCLC cells growth, migration, and invasion. Our results reveal that circRNA_102179 facilitates the proliferation, migration, and invasion of NSCLC cell via modulating miR-330-5p/ HMGB3 axis in NSCLC cells.
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Affiliation(s)
- Zhi-Feng Zhou
- Laboratory of Immuno-Oncology, Fujian Cancer Hospital & Fujian Medical University Cancer Hospital, Fuzhou, 350014, China; Fujian Key Laboratory of Translational Cancer Medicine, Fuzhou, 350014, China
| | - Zhi Wei
- Laboratory Department, Fuzhou Center for Disease Control and Prevention, Fuzhou, 350014, China
| | - Jin-Chan Yao
- Department of Infection Administration, Fujian Provincial Cancer Hospital & Fujian Medical University Cancer Hospital, Fuzhou, 350014, China
| | - Shuo-Yan Liu
- Department of Thoracic Surgery, Fujian Provincial Cancer Hospital & Fujian Medical University Cancer Hospital, Fuzhou, 350014, China
| | - Feng Wang
- Department of Thoracic Surgery, Fujian Provincial Cancer Hospital & Fujian Medical University Cancer Hospital, Fuzhou, 350014, China
| | - Zhen Wang
- Department of Thoracic Surgery, Fujian Provincial Cancer Hospital & Fujian Medical University Cancer Hospital, Fuzhou, 350014, China
| | - Xiao-Feng Chen
- Department of Thoracic Surgery, Fujian Provincial Cancer Hospital & Fujian Medical University Cancer Hospital, Fuzhou, 350014, China
| | - Hui Lin
- Department of Thoracic Surgery, Fujian Provincial Cancer Hospital & Fujian Medical University Cancer Hospital, Fuzhou, 350014, China
| | - Yunbin Ye
- Laboratory of Immuno-Oncology, Fujian Cancer Hospital & Fujian Medical University Cancer Hospital, Fuzhou, 350014, China; Fujian Key Laboratory of Translational Cancer Medicine, Fuzhou, 350014, China.
| | - Qing-Feng Zheng
- Fujian Key Laboratory of Translational Cancer Medicine, Fuzhou, 350014, China; Department of Thoracic Surgery, Fujian Provincial Cancer Hospital & Fujian Medical University Cancer Hospital, Fuzhou, 350014, China.
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Abstract
The brain is considered a major site for microRNA (miRNA) expression; as evidenced by several studies reporting microarray data of different brain substructures. The hypothalamus is among the brain regions that plays a crucial role in integrating signals from other brain nuclei as well as environmental, hormonal, metabolic and neuronal signals from the periphery in order to deliver an adequate response. The hypothalamus controls vital functions such as reproduction, energy homeostasis, water balance, circadian rhythm and stress. These functions need a high neuronal plasticity to adequately respond to physiological, environmental and psychological stimuli that could be limited to a specific temporal period during life or are cyclic events. In this context, miRNAs constitute major regulators and coordinators of gene expression. Indeed, in response to specific stimuli, changes in miRNA expression profiles finely tune specific mRNA targets to adequately fit to the immediate needs through mainly the modulation of neuronal plasticity.
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Affiliation(s)
- Mohammed Taouis
- Molecular Neuroendocrinology of Food Intake (NMPA), UMR 9197, University Paris-Sud, Orsay, France; NMPA, Neurosciences Paris Saclay Institute (NeuroPSI), Department Molecules & Circuits, CNRS UMR 9197, Orsay, France.
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Meister B, Herzer S, Silahtaroglu A. MicroRNAs in the hypothalamus. Neuroendocrinology 2013; 98:243-53. [PMID: 24080764 DOI: 10.1159/000355619] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2013] [Accepted: 09/10/2013] [Indexed: 11/19/2022]
Abstract
MicroRNAs (miRNAs) are short (∼22 nucleotides) non-coding ribonucleic acid (RNA) molecules that negatively regulate the expression of protein-coding genes. Posttranscriptional silencing of target genes by miRNA is initiated by binding to the 3'-untranslated regions of target mRNAs, resulting in specific cleavage and subsequent degradation of the mRNA or by translational repression resulting in specific inhibition of protein synthesis. An increasing amount of evidence shows that miRNAs control a large number of biological processes and there exists a direct link between miRNAs and disease. miRNA molecules are abundantly expressed in tissue-specific and regional patterns and have been suggested as potential biomarkers, disease modulators and drug targets. The central nervous system is a prominent site of miRNA expression. Within the brain, several miRNAs are expressed and/or enriched in the region of the hypothalamus and miRNAs have recently been shown to be important regulators of hypothalamic control functions. The aim of this review is to summarize some of the current knowledge regarding the expression and role of miRNAs in the hypothalamus.
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Affiliation(s)
- Björn Meister
- Department of Neuroscience, Karolinska Institutet, Stockholm, Sweden
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Huebert RC, Jagavelu K, Hendrickson HI, Vasdev MM, Arab JP, Splinter PL, Trussoni CE, Larusso NF, Shah VH. Aquaporin-1 promotes angiogenesis, fibrosis, and portal hypertension through mechanisms dependent on osmotically sensitive microRNAs. THE AMERICAN JOURNAL OF PATHOLOGY 2011; 179:1851-60. [PMID: 21854740 DOI: 10.1016/j.ajpath.2011.06.045] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2011] [Revised: 06/20/2011] [Accepted: 06/28/2011] [Indexed: 12/21/2022]
Abstract
Changes in hepatic vasculature accompany fibrogenesis, and targeting angiogenic molecules often attenuates fibrosis in animals. Aquaporin-1 (AQP1) is a water channel, overexpressed in cirrhosis, that promotes angiogenesis by enhancing endothelial invasion. The effect of AQP1 on fibrogenesis in vivo and the mechanisms driving AQP1 expression during cirrhosis remain unclear. The purpose of this study was to test the effect of AQP1 deletion in cirrhosis and explore mechanisms regulating AQP1. After bile duct ligation, wild-type mice overexpress AQP1 that colocalizes with vascular markers and sites of robust angiogenesis. AQP1 knockout mice demonstrated reduced angiogenesis compared with wild-type mice, as evidenced by immunostaining and endothelial invasion/proliferation in vitro. Fibrosis and portal hypertension were attenuated based on immunostaining, portal pressure, and spleen/body weight ratio. AQP1 protein, but not mRNA, was induced by hyperosmolality in vitro, suggesting post-transcriptional regulation. Endothelial cells from normal or cirrhotic mice were screened for microRNA (miR) expression using an array and a quantitative PCR. miR-666 and miR-708 targeted AQP1 mRNA and were decreased in cirrhosis and in cells exposed to hyperosmolality, suggesting that these miRs mediate osmolar changes via AQP1. Binding of the miRs to the untranslated region of AQP1 was assessed using luciferase assays. In conclusion, AQP1 promotes angiogenesis, fibrosis, and portal hypertension after bile duct ligation and is regulated by osmotically sensitive miRs.
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Affiliation(s)
- Robert C Huebert
- Gastroenterology Research Unit, Mayo Clinic and Foundation, 200 First St. SW, Rochester, MN 55905, USA.
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MicroRNA-330 acts as tumor suppressor and induces apoptosis of prostate cancer cells through E2F1-mediated suppression of Akt phosphorylation. Oncogene 2009; 28:3360-70. [PMID: 19597470 DOI: 10.1038/onc.2009.192] [Citation(s) in RCA: 165] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
MicroRNAs (miRNAs) make up a novel class of gene regulators; they function as oncogenes or tumor suppressors by targeting tumor-suppressor genes or oncogenes. A recent study that analysed a large number of human cancer cell lines showed that miR-330 is a potential tumor-suppressor gene. However, the function and molecular mechanism of miR-330 in determining the aggressiveness of human prostate cancer has not been studied. Here, we show that miR-330 is significantly lower expressed in human prostate cancer cell lines than in nontumorigenic prostate epithelial cells. Bioinformatics analyses reveal a conserved target site for miR-330 in the 3'-untranslated region (UTR) of E2F1 at nucleotides 1018-1024. MiR-330 significantly suppressed the activity of a luciferase reporter containing the E2F1-3'-UTR in the cells. This activity could be abolished with the transfection of anti-miR-330 or mutated E2F1-3'-UTR. In addition, the expression level of miR-330 and E2F1 was inversely correlated in cell lines and prostate cancer specimens. After overexpressing of miR-330 in PC-3 cells, cell growth was suppressed by reducing E2F1-mediated Akt phosphorylation and thereby inducing apoptosis. Collectively, this is the first study to show that E2F1 is negatively regulated by miR-330 and also show that miR-330 induces apoptosis in prostate cancer cells through E2F1-mediated suppression of Akt phosphorylation.
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