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Tang L, Xiang Y, Zhou J, Li T, Jia T, Du G. miR-186 regulates epithelial-mesenchymal transformation to promote nasopharyngeal carcinoma metastasis by targeting ZEB1. Braz J Otorhinolaryngol 2024; 90:101358. [PMID: 37989078 PMCID: PMC10679499 DOI: 10.1016/j.bjorl.2023.101358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Revised: 10/12/2023] [Accepted: 10/20/2023] [Indexed: 11/23/2023] Open
Abstract
OBJECTIVES Nasopharyngeal carcinoma (NPC) is an aggressive epithelial cancer. The expression of miR-186 is decreased in a variety of malignancies and can promote the invasion and metastasis of cancer cells. This study aimed to explore the role and possible mechanism of miR-186 in the metastasis and epithelial-mesenchymal transformation (EMT) of NPC. METHODS The expression of miR-186 in NPC tissues and cells was detected by RT-PCR. Then, miR-186 mimic was used to transfect NPC cell lines C666-1 and CNE-2, and cell activity, invasion and migration were detected by CCK8, transwell and scratch assay, respectively. The expression of EMT-related proteins was analyzed by western blotting analysis. The binding relationship between miR-186 and target gene Zinc Finger E-Box Binding Homeobox 1 (ZEB1) was confirmed by double luciferase assay. RESULTS The expression of miR-186 in NPC was significantly decreased, and transfection of miR-186 mimic could significantly inhibit the cell activity, invasion, and migration, and regulate the protein expressions of E-cadherin, N-cadherin and vimentin in C666-1 and CNE-2 cells. Further experiments confirmed that miR-186 could directly target ZEB1 and negatively regulate its expression. In addition, ZEB1 has been confirmed to be highly expressed in NPC, and inhibition of ZEB1 could inhibit the activity, invasion, metastasis and EMT of NPC cells. And co-transfection of miR-186 mimic and si-ZEB1 could further inhibit the proliferation and metastasis of NPC. CONCLUSION miR-186 may inhibit the proliferation, metastasis and EMT of NPC by targeting ZEB1, and the miR-186/ZEB1 axis plays an important role in NPC.
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Affiliation(s)
- Liangke Tang
- Affiliated Hospital of North Sichuan Medical College, Department of Oncology, Nanchong, China; North Sichuan Medical College, Nanchong, China
| | - Yalang Xiang
- Affiliated Hospital of North Sichuan Medical College, Department of Oncology, Nanchong, China; North Sichuan Medical College, Nanchong, China
| | - Jing Zhou
- Affiliated Hospital of North Sichuan Medical College, Department of Neurology, Nanchong, China
| | - Tao Li
- Department of Oncology, People's Hospital of Nanbu County, Nanchong, China
| | - Tingting Jia
- Affiliated Hospital of North Sichuan Medical College, Department of Oncology, Nanchong, China
| | - Guobo Du
- Affiliated Hospital of North Sichuan Medical College, Department of Oncology, Nanchong, China; The First Affiliated Hospital of Jinan University, Tianhe, China.
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2
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Ayoub SE, Shaker OG, Aboshama RA, Etman MK, Khalefa AA, khamiss Abd elguaad MM, Zaki OM, Ali DY, Hemeda NF, Amin A, Ali MA. Expression profile of LncRNA ANRIL, miR-186, miR-181a, and MTMR-3 in patients with preeclampsia. Noncoding RNA Res 2023; 8:481-486. [PMID: 37456780 PMCID: PMC10344750 DOI: 10.1016/j.ncrna.2023.06.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 05/18/2023] [Accepted: 06/06/2023] [Indexed: 07/18/2023] Open
Abstract
Preeclampsia (PE) is a leading cause of maternal and neonatal morbidity and mortality worldwide. Several studies demonstrated the role of lncRNAs and miRNAs in the pathogenesis of preeclampsia; the aim was to detect the expression profiles of serum LncRNA ANRIL, miR-186, miR-181a, and MTMR-3 in patients with preeclampsia. The study included 160 subjects divided into 80 subjects considered as a control group, 80 patients with preeclampsia. We found that there was a significant difference between the preeclampsia and control groups with up-regulation of miR-186 median (IQR) = 4, 29 (1.35-7.73) (P < 0.0001), miR-181a median (IQR) = 2.45 (0.83-6.52) (P = 0.028), and downregulation of lncRNA ANRIL median (IQR) = 0.35(0.28-0.528) (P < 0.0001), MTMR median (IQR) = 0.32(0.155-1.11), (P < 0.0001). ROC curve of lncRNA ANRIL, miR-186, miR-181a, and MTMR-3 in preeclampsia patients showing the roles of these markers in the diagnosis of preeclampsia. In conclusion, serum LncRNA ANRIL, miR-186, miR-181a, and MTMR-3 could be promising biomarkers in the diagnosis of preeclampsia.
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Affiliation(s)
- Shymaa E. Ayoub
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, Fayoum University, Al Fayoum, Egypt
| | - Olfat G. Shaker
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, Cairo University, Cairo, Egypt
| | | | - Mohamed K. Etman
- Department of Obstetrics and Gynecology, Faculty of Medicine, Fayoum University, Al Fayoum, Egypt
| | - Abeer A. Khalefa
- Department of Physiology, Faculty of Medicine, Zagazig University, El Zagazig, Egypt
| | | | - Othman M. Zaki
- Department of Clinical Pathology, Faculty of Medicine, Damietta University, Damietta, Egypt
| | - Doaa Y. Ali
- Department of Clinical and Chemical Pathology, Faculty of Medicine, Fayoum University, Al Fayoum, Egypt
| | - Nada F. Hemeda
- Department of Genetics, Faculty of Agriculture, Fayoum University, Fayoum, Egypt
| | - Amal Amin
- Department of Medical Microbiology and Immunology, Faculty of Medicine, Fayoum University, Al Fayoum, Egypt
| | - Marwa A. Ali
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, Fayoum University, Al Fayoum, Egypt
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3
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Wangpu X, Zhao J, Yu C, Yu S, Wang H, Yuan Z, Huang X. CircATP13A1 (hsa_circ_0000919) promotes cell proliferation and metastasis and inhibits cell apoptosis in pancreatic ductal adenocarcinoma via the miR-186/miR-326/HMGA2 axis: implications for novel therapeutic targets. Am J Cancer Res 2023; 13:5610-5625. [PMID: 38058810 PMCID: PMC10695776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Accepted: 08/27/2023] [Indexed: 12/08/2023] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is a notoriously aggressive malignancy with a survival rate of merely 9%. The prognosis in patients with PDAC is relatively poor, particularly in patients with advanced distant metastases. However, the mechanisms of PDAC progression remain elusive. Circular RNAs (circRNAs) have been implicated in the development of various malignancies, including PDAC. Therefore, this study aimed to investigate how a novel circRNA, circATP13A1, regulates PDAC progression. We used the GEO database to determine circATP13A1 expression levels in cancer and adjacent cells and employed the limma package of R software to identify differentially expressed circRNAs. We detected the expression of circATP13A1, miR-186, and miR-326 using qRT-PCR and investigated the effect of circATP13A1 on cell proliferation, migration, invasion, and apoptosis in vitro using the Cell Counting Kit-8 (CCK-8), the transwell migration assay, and the flow cytometry assay. We then performed RNA pull-down assay, RNA immunoprecipitation (RIP), and Western blot to verify the interaction between circATP13A1, miR-186, miR-326, and HMGA2. Moreover, we used a naked mice model to determine how circATP13A1 affects tumor growth and progression in vivo. Loss and gain of function analyses revealed that circATP13A1 upregulation promotes cell proliferation, migration, invasion and tumor growth both in vitro and in vivo, which results in PDAC progression and poor prognosis in patients. CircATP13A1 knockdown significantly impaired cell proliferation and migration of PDAC cell lines. Additionally, circATP13A1 knockdown significantly increased the expression of miR-186 and miR-326, while reducing the expression of HMGA2 (P < 0.05), indicating that miR-186 and miR-326 are downstream targets of circATP13A1. Rescue experiments support the interactions between circATP13A1, miR-186, miR-326, and HMGA2. In conclusion, we demonstrated that circATP13A1 sponges the miR-186/miR-326/HMGA2/axis, acting as an oncogene to promote PDAC development.
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Affiliation(s)
- Xiongzhi Wangpu
- Department of Hepatobiliary and Pancreatic Surgery, Shanghai 6 People’s Hospital Affiliated to Shanghai Jiao Tong University, School of MedicineNo. 600 Yishan Rd, Shanghai 200233, China
| | - Jingkun Zhao
- Department of Gastrointestinal Surgery and Minimally Invasive Surgery, Ruijin Hospital, Shanghai Jiao Tong University, School of MedicineShanghai 200001, China
| | - Chaoran Yu
- Department of General Surgery, Shanghai 9 People’s Hospital, Shanghai Jiao Tong University, School of MedicineShanghai 200011, China
| | - Song Yu
- Department of Hepatobiliary and Pancreatic Surgery, Shanghai 6 People’s Hospital Affiliated to Shanghai Jiao Tong University, School of MedicineNo. 600 Yishan Rd, Shanghai 200233, China
| | - Hongcheng Wang
- Department of Hepatobiliary and Pancreatic Surgery, Shanghai 6 People’s Hospital Affiliated to Shanghai Jiao Tong University, School of MedicineNo. 600 Yishan Rd, Shanghai 200233, China
| | - Zhou Yuan
- Department of Hepatobiliary and Pancreatic Surgery, Shanghai 6 People’s Hospital Affiliated to Shanghai Jiao Tong University, School of MedicineNo. 600 Yishan Rd, Shanghai 200233, China
| | - Xinyu Huang
- Department of Hepatobiliary and Pancreatic Surgery, Shanghai 6 People’s Hospital Affiliated to Shanghai Jiao Tong University, School of MedicineNo. 600 Yishan Rd, Shanghai 200233, China
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4
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Apollonova V, Plevako D, Garanin A, Sidina E, Zabegina L, Knyazeva M, Smirnova V, Artemyeva A, Krivorotko P, Malek A. Resistance of breast cancer cells to paclitaxel is associated with low expressions of miRNA-186 and miRNA-7. Cancer Drug Resist 2023; 6:596-610. [PMID: 37842231 PMCID: PMC10571055 DOI: 10.20517/cdr.2023.19] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 08/16/2023] [Accepted: 06/25/2023] [Indexed: 10/17/2023]
Abstract
Aim: Neo-adjuvant chemotherapy is a common approach for the complex treatment of breast cancer (BC) and paclitaxel (PTX) is frequently included in the therapeutic regimen. However, the effect of PTX-based treatment is hard to predict precisely based on routinely used markers. As microRNAs are considered a new promising class of biomarkers, the link between miRNA expression and PTX resistance of BC cells needs to be well investigated. This study aimed at the identification of miRNAs associated with responses of BC cells to PTX. Methods: Intrinsic PTX sensitivity and miRNA profiling were assayed in five BC cell lines to identify candidate miRNAs. Selected miRNA (n. 15) expressions were analyzed by real-time-quantitative polymerase chain reaction (RT-qPCR) in BC tissue samples (n. 31) obtained from a diagnostic biopsy. Results were analyzed in the context of the effect of two cycles of PTX and the effect of the completed scheme of neoadjuvant therapy. The study's design facilitated the evaluation of the effect of PTX on cells and the identification of features of the microRNA expression profiles associated exclusively with sensitivity to this drug. Results: miR-186 and miR-7 expression in BC tissues was higher in patients with better outcomes of PTX-based neoadjuvant therapy. Conclusion: High expressions of miR-186 and miR-7 are associated with good response to PTX, whereas their low expressions may be associated with resistance to PTX in BC, indicating the possibility of developing innovative test systems for the prediction of the PTX response, which can be used before the start of neo-adjuvant chemotherapy for BC.
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Affiliation(s)
- Vera Apollonova
- Breast Surgical Oncology, N.N. Petrov National Medical Research Center of Oncology, St. Petersburg 197758, Russia
- Authors contributed equally
| | - Daniil Plevako
- Subcellular Technology Lab, N.N. Petrov National Medical Research Center of Oncology, St. Petersburg 197758, Russia
- Authors contributed equally
| | - Alexandr Garanin
- Subcellular Technology Lab, N.N. Petrov National Medical Research Center of Oncology, St. Petersburg 197758, Russia
| | - Elena Sidina
- Subcellular Technology Lab, N.N. Petrov National Medical Research Center of Oncology, St. Petersburg 197758, Russia
| | - Lidia Zabegina
- Subcellular Technology Lab, N.N. Petrov National Medical Research Center of Oncology, St. Petersburg 197758, Russia
| | - Margarita Knyazeva
- Subcellular Technology Lab, N.N. Petrov National Medical Research Center of Oncology, St. Petersburg 197758, Russia
| | - Viktoria Smirnova
- Department of Pathology, N.N. Petrov National Medical Research Center of Oncology, St. Petersburg 197758, Russia
| | - Anna Artemyeva
- Department of Pathology, N.N. Petrov National Medical Research Center of Oncology, St. Petersburg 197758, Russia
| | - Petr Krivorotko
- Breast Surgical Oncology, N.N. Petrov National Medical Research Center of Oncology, St. Petersburg 197758, Russia
| | - Anastasia Malek
- Subcellular Technology Lab, N.N. Petrov National Medical Research Center of Oncology, St. Petersburg 197758, Russia
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Kołat D, Kałuzińska-Kołat Ż, Kośla K, Orzechowska M, Płuciennik E, Bednarek AK. LINC01137/ miR-186-5p/WWOX: a novel axis identified from WWOX-related RNA interactome in bladder cancer. Front Genet 2023; 14:1214968. [PMID: 37519886 PMCID: PMC10373930 DOI: 10.3389/fgene.2023.1214968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Accepted: 06/30/2023] [Indexed: 08/01/2023] Open
Abstract
Introduction: The discovery of non-coding RNA (ncRNA) dates back to the pre-genomics era, but the progress in this field is still dynamic and leverages current post-genomics solutions. WWOX is a global gene expression modulator that is scarcely investigated for its role in regulating cancer-related ncRNAs. In bladder cancer (BLCA), the link between WWOX and ncRNA remains unexplored. The description of AP-2α and AP-2γ transcription factors, known as WWOX-interacting proteins, is more commonplace regarding ncRNA but still merits investigation. Therefore, this in vitro and in silico study aimed to construct an ncRNA-containing network with WWOX/AP-2 and to investigate the most relevant observation in the context of BLCA cell lines and patients. Methods: RT-112, HT-1376, and CAL-29 cell lines were subjected to two stable lentiviral transductions. High-throughput sequencing of cellular variants (deposited in the Gene Expression Omnibus database under the GSE193659 record) enabled the investigation of WWOX/AP-2-dependent differences using various bioinformatics tools (e.g., limma-voom, FactoMineR, multiple Support Vector Machine Recursive Feature Elimination (mSVM-RFE), miRDB, Arena-Idb, ncFANs, RNAhybrid, TargetScan, Protein Annotation Through Evolutionary Relationships (PANTHER), Gene Transcription Regulation Database (GTRD), or Evaluate Cutpoints) and repositories such as The Cancer Genome Atlas (TCGA) and Cancer Cell Line Encyclopedia. The most relevant observations from cap analysis gene expression sequencing (CAGE-seq) were confirmed using real-time PCR, whereas TCGA data were validated using the GSE31684 cohort. Results: The first stage of the whole study justified focusing solely on WWOX rather than on WWOX combined with AP-2α/γ. The most relevant observation of the developed ncRNA-containing network was LINC01137, i.e., long non-coding RNAs (lncRNAs) that unraveled the core network containing UPF1, ZC3H12A, LINC01137, WWOX, and miR-186-5p, the last three being a novel lncRNA/miRNA/mRNA axis. Patients' data confirmed the LINC01137/miR-186-5p/WWOX relationship and provided a set of dependent genes (i.e., KRT18, HES1, VCP, FTH1, IFITM3, RAB34, and CLU). Together with the core network, the gene set was subjected to survival analysis for both TCGA-BLCA and GSE31684 patients, which indicated that the increased expression of WWOX or LINC01137 is favorable, similar to their combination with each other (WWOX↑ and LINC01137↑) or with MIR186 (WWOX↑/LINC01137↑ but MIR186↓). Conclusion: WWOX is implicated in the positive feedback loop with LINC01137 that sponges WWOX-targeting miR-186-5p. This novel WWOX-containing lncRNA/miRNA/mRNA axis should be further investigated to depict its relationships in a broader context, which could contribute to BLCA research and treatment.
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Affiliation(s)
- Damian Kołat
- Department of Molecular Carcinogenesis, Medical University of Lodz, Lodz, Poland
| | | | - Katarzyna Kośla
- Department of Molecular Carcinogenesis, Medical University of Lodz, Lodz, Poland
| | | | | | - Andrzej K. Bednarek
- Department of Molecular Carcinogenesis, Medical University of Lodz, Lodz, Poland
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6
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Becker V, Yuan X, Boewe AS, Ampofo E, Ebert E, Hohneck J, Bohle RM, Meese E, Zhao Y, Menger MD, Laschke MW, Gu Y. Hypoxia-induced downregulation of microRNA-186-5p in endothelial cells promotes non-small cell lung cancer angiogenesis by upregulating protein kinase C alpha. Mol Ther Nucleic Acids 2023; 31:421-436. [PMID: 36845338 PMCID: PMC9945639 DOI: 10.1016/j.omtn.2023.01.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Accepted: 01/23/2023] [Indexed: 01/28/2023]
Abstract
The tumor microenvironment stimulates the angiogenic activity of endothelial cells (ECs) to facilitate tumor vascularization, growth, and metastasis. The involvement of microRNA-186-5p (miR-186) in regulating the aberrant activity of tumor-associated ECs has so far not been clarified. In the present study, we demonstrated that miR-186 is significantly downregulated in ECs microdissected from human non-small cell lung cancer (NSCLC) tissues compared with matched non-malignant lung tissues. In vitro analyses of primary human dermal microvascular ECs (HDMECs) exposed to different stimuli indicated that this miR-186 downregulation is triggered by hypoxia via activation of hypoxia-inducible factor 1 alpha (HIF1α). Transfection of HDMECs with miR-186 mimic (miR-186m) significantly inhibited their proliferation, migration, tube formation, and spheroid sprouting. In contrast, miR-186 inhibitor (miR-186i) exerted pro-angiogenic effects. In vivo, endothelial miR-186 overexpression inhibited the vascularization of Matrigel plugs and the initial growth of tumors composed of NSCLC cells (NCI-H460) and HDMECs. Mechanistic analyses revealed that the gene encoding for protein kinase C alpha (PKCα) is a bona fide target of miR-186. Activation of this kinase significantly reversed the miR-186m-repressed angiogenic activity of HDMECs. These findings indicate that downregulation of miR-186 in ECs mediates hypoxia-stimulated NSCLC angiogenesis by upregulating PKCα.
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Affiliation(s)
- Vivien Becker
- Institute for Clinical & Experimental Surgery, Saarland University, 66421 Homburg/Saar, Germany
| | - Xu Yuan
- Fudan University Shanghai Cancer Center and Institutes of Biomedical Sciences, Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Anne S. Boewe
- Institute for Clinical & Experimental Surgery, Saarland University, 66421 Homburg/Saar, Germany
| | - Emmanuel Ampofo
- Institute for Clinical & Experimental Surgery, Saarland University, 66421 Homburg/Saar, Germany
| | - Elke Ebert
- Institute of Pathology, Medical Center, Saarland University, 66421 Homburg/Saar, Germany
| | - Johannes Hohneck
- Institute of Pathology, Medical Center, Saarland University, 66421 Homburg/Saar, Germany
| | - Rainer M. Bohle
- Institute of Pathology, Medical Center, Saarland University, 66421 Homburg/Saar, Germany
| | - Eckart Meese
- Institute of Human Genetics, Saarland University, 66421 Homburg/Saar, Germany
| | - Yingjun Zhao
- Fudan University Shanghai Cancer Center and Institutes of Biomedical Sciences, Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Michael D. Menger
- Institute for Clinical & Experimental Surgery, Saarland University, 66421 Homburg/Saar, Germany
| | - Matthias W. Laschke
- Institute for Clinical & Experimental Surgery, Saarland University, 66421 Homburg/Saar, Germany
| | - Yuan Gu
- Institute for Clinical & Experimental Surgery, Saarland University, 66421 Homburg/Saar, Germany
- Corresponding author: Yuan Gu, Institute for Clinical & Experimental Surgery, Saarland University, 66421 Homburg/Saar, Germany.
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7
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Ji G, Wang X, Xi H. METTL3-mediated m 6A modification of lncRNA SNHG3 accelerates gastric cancer progression by modulating miR-186-5p/cyclinD2 axis. Int J Immunopathol Pharmacol 2023; 37:3946320231204694. [PMID: 37823387 PMCID: PMC10571673 DOI: 10.1177/03946320231204694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Accepted: 09/14/2023] [Indexed: 10/13/2023] Open
Abstract
OBJECTIVES METTL3 as an m6A methyltransferase acts in diverse malignancies including gastric cancer (GC). We aimed to reveal the underlying mechanisms by which METTL3 contributes to gastric carcinogenesis. METHODS The association of METTL3 and SNHG3 with GC was analyzed by qRT-PCR, Western blot, and TCGA cohort. The functional experiments were implemented to uncover the role of METTL3 in GC. m6A dot blot and MeRIP were used to determine METTL3-mediated m6A modification of lncRNA SNHG3. The effect of METTL3 on SNHG3-mediated miR-186-5p/cyclinD2 axis was evaluated by luciferase gene report, RT-qPCR, and Western blot assays. RESULTS We found that METTL3 was remarkably elevated in GC tissues and correlated with poor survival in patients with GC. Silencing of METTL3 impaired GC cell growth and invasion, whereas restored METTL3 expression promoted these effects. Mechanistically, reduced expression of METTL3 decreased SNHG3 m6A level and caused a decrease in SNHG3 expression, which could further act as a sponge of miR-186-5p to upregulate cyclinD2. Overexpression of SNHG3 attenuated METTL3 knockdown-induced anti-proliferating and miR-186-5p upregulation and cyclinD2 downregulation. CONCLUSION We find that METTL3-mediated m6A modification of lncRNA SNHG3 accelerates GC progression by modulating miR-186-5p/cyclinD2 axis.
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Affiliation(s)
| | | | - Hao Xi
- Hao Xi, Department of Pathology, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, No. 301 Yanchang Middle Road, Shanghai 200072, China.
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8
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Zhao Y, Shi J, Zhao Y, Lu Z. SNHG1/ miR-186/FUT8 regulates cell migration and invasion in oral squamous cell carcinoma. Oral Dis 2023; 29:105-115. [PMID: 33872442 DOI: 10.1111/odi.13878] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [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: 11/14/2020] [Revised: 04/09/2021] [Accepted: 04/13/2021] [Indexed: 12/24/2022]
Abstract
Recently, lncRNAs are associated with the progression and development of various cancers. We aimed to explore the effects of lncRNA SNHG1 on the proliferation, apoptosis, migration, and invasion of oral squamous cell carcinoma (OSCC) cells. Quantitative real-time PCR (RT-qPCR) was used for measurement of SNHG1 in OSCC cells. Cell proliferation, apoptosis, migration, and invasion were detected by CCK-8 assay, flow cytometry, Cell Death Detection ELISA PLUS kit, and transwell assays. Dual-luciferase reporter assay and RNA-binding protein immunoprecipitation (RIP) assay were used to clarify the relationship between SNHG1 and miR-186. SNHG1 was overexpressed in OSCC cells. SNHG1 silencing prevented cell proliferation and increased the incidence of apoptosis, DNA fragments, cleaved-caspase 3, and Bax protein levels. Cell migration and invasion were reduced after SNHG1 deletion, and MMP2 and MMP9 protein levels were decreased. SNHG1 overexpression promoted cell survival, migration, and invasion, reduced DNA fragments formation. Mechanistically, we demonstrated that SNHG1 could directly bind to miR-186 and positively regulated α1, 6-fucosyltransferase (FUT8) level. Functional investigation showed that miR-186 depletion reversed the roles of SNHG1 silencing in cell proliferation, apoptosis, and migration. Taken together, our findings illuminated that SNHG1 regulated cell proliferation, migration, and invasion by sponging miR-186 to depress FUT8 expression.
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Affiliation(s)
- Yanxia Zhao
- Department of General Stomatology, The First Affiliated Hospital, Zhengzhou University, (Henan Stomatological Hospital), Zhengzhou, China
| | - Jun Shi
- Department of Stomatology, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Yankun Zhao
- Department of Stomatology, Songzi People's Hospital, Songzi, China
| | - Zhifang Lu
- Department of Stomatology, XD Group Hospital, Xi'an, China
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9
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Fu X, Liu H, Fan Y, Yuan J. Extracellular vesicle-mediated transfer of lncRNA CLDN10-AS1 aggravates low-density lipoprotein-induced vascular endothelial injury. Physiol Genomics 2022; 54:471-485. [PMID: 36250558 DOI: 10.1152/physiolgenomics.00094.2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Oxidized low-density lipoprotein (ox-LDL) stimulation impairs the oxidation-reduction equilibrium in vascular endothelial cells (VECs) and contributes to atherosclerosis (AS). This study probed the mechanisms of extracellular vesicle (EV)-mediated transfer of lncRNA CLDN10 antisense RNA 1 (CLDN10-AS1) in ox-LDL-induced VEC injury. Initially, VEC injury models were established by treating human umbilical vein endothelial cells (HUVECs) with ox-LDL. EVs were isolated from HUVECs (HUVECs-EVs) and identified. CLDN10-AS1, microRNA (miR)-186, and Yin Yang 1 (YY1) expressions in ox-LDL-treated HUVECs and EVs derived from these cells (ox-EVs) were measured. HUVECs were incubated with EVs, after which the cell viability, apoptosis, and concentrations of proinflammatory cytokines and oxidative stress markers were measured. We discovered that CLDN10-AS1 and YY1 were upregulated in ox-LDL-treated HUVECs, whereas miR-186 was downregulated. ox-EVs treatment elevated CLDN10-AS1 expression in HUVECs and ox-EVs overexpressing CLDN10-AS1 promoted VEC injury. Besides, CLDN10-AS1 is competitively bound to miR-186 and promoted YY1 expression. Rescue experiments revealed that miR-186 overexpression or YY1 suppression partially reversed the roles of ox-EVs overexpressing CLDN10-AS1 in ox-LDL-induced VEC injury. Lastly, clinical serum samples were collected for verification. Overall, CLDN10-AS1 carried by HUVECs-EVs into HUVECs competitively bound to miR-186 to elevate YY1 expression, thereby aggravating ox-LDL-induced VEC injury.
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Affiliation(s)
- Xiaoyang Fu
- Department of Vascular Surgery, Henan Provincial People's Hospital, Zhengzhou, China.,People's Hospital of Zhengzhou University, Zhengzhou, China.,Central China Fuwai Hospital of Zhengzhou University, Zhengzhou, China.,School of Clinical Medicine, Henan University, Zhengzhou, China
| | - Heng Liu
- Department of Vascular Surgery, Henan Provincial People's Hospital, Zhengzhou, China
| | - Yulong Fan
- Department of Vascular Surgery, Henan Provincial People's Hospital, Zhengzhou, China
| | - Ji Yuan
- Central China Fuwai Hospital of Zhengzhou University, Zhengzhou, China.,School of Clinical Medicine, Henan University, Zhengzhou, China.,Department of Anaesthesia, Henan Provincial People's Hospital, Zhengzhou, China.,Department of Anaesthesia, Central China Fuwai Hospital, Zhengzhou, China
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10
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Jin Z, Ye J, Chen S, Ren Y, Guo W. CircDOCK1 Regulates miR-186/DNMT3A to Promote Osteosarcoma Progression. Biomedicines 2022; 10:biomedicines10123013. [PMID: 36551768 PMCID: PMC9775081 DOI: 10.3390/biomedicines10123013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 11/13/2022] [Accepted: 11/21/2022] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Circular RNAs (circRNAs), as a class of endogenous RNAs, are implicated in osteosarcoma (OS) progression. However, the functional properties of circDOCK1 in OS have been largely unexplored. The present study demonstrated the regulatory mechanism of circDOCK1 in OS. METHODS QRT-PCR and Western blots were used to determine the abundances of circDOCK1, miR-186, and DNMT3A. Cell counting kit-8 (CCK-8), 5-Ethynyl-2'-deoxyuridine (EdU), colony formation, Transwell, and wound healing assays were used to examine cellular multiplication, motility, and invasion. Luciferase reporter analysis, RNA immunoprecipitation (RIP), and pull-down assays were used to verify target relationships. Xenograft models were used to analyze in vivo function. RESULTS OS tissues and cells showed high levels of circDOCK1. By knocking down circDOCK1, cellular multiplication, motility, and invasion were suppressed. Furthermore, silencing circDOCK1 suppressed the growth of tumor xenografts. According to mechanistic studies, miR-186 targets DNA methyltransferases 3A (DNMT3A) directly and acts as a circDOCK1 target. Furthermore, circDOCK1 upregulated DNMT3A expression through sponging miR-186 to regulate the progression of OS. CONCLUSIONS CircDOCK1 promotes OS progression by interacting with miR-186/DNMT3ADNMT3A, representing a novel therapeutic approach.
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Affiliation(s)
| | | | | | | | - Weichun Guo
- Correspondence: ; Tel.: +86-027-88041911-82209
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11
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Guo X, Zeng Y, Ye G, Yang J, Wu Q, Shi Y, Lu R. Circular RNA circSEPT9 Is Upregulated in Endometrial Cancer and Promotes Cell Invasion and Migration by Downregulating miR-186 through Methylation. Ann Clin Lab Sci 2022; 52:399-405. [PMID: 35777791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
OBJECTIVE MicroRNA-186 (miR-186) and circular RNA (circRNA) circSEPT9 are two crucial players in cancer biology, while their roles in endometrial cancer (EC) are unclear. Our preliminary sequencing analysis revealed the potential crosstalk between circSEPT9 and miR-186 in EC. MATERIALS AND METHODS The expression levels of circSEPT9 and miR-186 in EC and paired non-tumor tissues from 64 EC patients were detected by RT-qPCRs. Correlation analysis was carried out with Pearson's correlation coefficient. The role of circSEPT9 in regulating the expression of miR-186 and the methylation of miR-186 gene was explored by RT-qPCR and methylation specific PCR (MSP), respectively. Cell invasion and migration were evaluated by Transwell assays. RESULTS CircSEPT9 was upregulated in EC, and miR-186 was downregulated in EC. MiR-186 and circSEPT9 were inversely correlated across EC tissue samples, but not non-tumor samples. Overexpression of circSEPT9 decreased the expression levels of miR-186 and increased the methylation of miR-186 gene. CircSEPT9 increased cell invasion and migration and suppressed the role of miR-186 in inhibiting cell behaviors. CONCLUSION Therefore, circSEPT9 is upregulated in EC and promotes cell invasion and migration by downregulating miR-186 through methylation.
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Affiliation(s)
- Xueqing Guo
- Department of Gynecology, Shunde Hospital of Southern Medical University, Foshan, Guangdong, China
| | - Yan Zeng
- Department of Gynecology, Shunde Hospital of Southern Medical University, Foshan, Guangdong, China
| | - Guie Ye
- Department of Gynecology, Shunde Hospital of Southern Medical University, Foshan, Guangdong, China
| | - Junchan Yang
- Department of Gynecology, Shunde Hospital of Southern Medical University, Foshan, Guangdong, China
| | - Qingxia Wu
- Department of Gynecology, Shunde Hospital of Southern Medical University, Foshan, Guangdong, China
| | - Yalan Shi
- Department of Gynecology, Shunde Hospital of Southern Medical University, Foshan, Guangdong, China
| | - Rong Lu
- Department of Gynecology, Shunde Hospital of Southern Medical University, Foshan, Guangdong, China
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12
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Eyileten C, Jakubik D, Shahzadi A, Gasecka A, van der Pol E, De Rosa S, Siwik D, Gajewska M, Mirowska-Guzel D, Kurkowska-Jastrzebska I, Czlonkowska A, Postula M. Diagnostic Performance of Circulating miRNAs and Extracellular Vesicles in Acute Ischemic Stroke. Int J Mol Sci 2022; 23:4530. [PMID: 35562921 DOI: 10.3390/ijms23094530] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Revised: 04/04/2022] [Accepted: 04/14/2022] [Indexed: 02/06/2023] Open
Abstract
Background: Increased inflammation activates blood coagulation system, higher platelet activation plays a key role in the pathophysiology of ischemic stroke (IS). During platelet activation and aggregation process, platelets may cause increased release of several proinflammatory, and prothrombotic mediators, including microRNAs (miRNAs) and extracellular vesicles (EVs). In the current study we aimed to assess circulating miRNAs profile related to platelet function and inflammation and circulating EVs from platelets, leukocytes, and endothelial cells to analyse their diagnostic and predictive utility in patients with acute IS. Methods: The study population consisted of 28 patients with the diagnosis of the acute IS. The control group consisted of 35 age- and gender-matched patients on acetylsalicylic acid (ASA) therapy without history of stroke and/or TIA with established stable coronary artery disease (CAD) and concomitant cardiovascular risk factors. Venous blood samples were collected from the control group and patients with IS on ASA therapy (a) 24 h after onset of acute IS, (b) 7-days following index hospitalization. Flow cytometry was used to determine the concentration of circulating EVs subtypes (from platelets, leukocytes, and endothelial cells) in platelet-depleted plasma and qRT-PCR was used to determine several circulating plasma miRNAs (miR-19a-3p, miR-186-5p and let-7f). Results: Patients with high platelet reactivity (HPR, based on arachidonic acid-induced platelet aggregometry) had significantly elevated platelet-EVs (CD62+) and leukocyte-EVs (CD45+) concentration compared to patients with normal platelet reactivity at the day of 1 acute-stroke (p = 0.012, p = 0.002, respectively). Diagnostic values of baseline miRNAs and EVs were evaluated with receiver operating characteristic (ROC) curve analysis. The area under the ROC curve for miR-19a-3p was 0.755 (95% CI, 0.63–0.88) p = 0.004, for let-7f, it was 0.874 (95% CI, 0.76–0.99) p = 0.0001; platelet-EVs was 0.776 (95% CI, 0.65–0.90) p = 0.001, whereas for leukocyte-EVs, it was 0.715 (95% CI, 0.57–0.87) p = 0.008. ROC curve showed that pooling the miR-19a-3p expressions, platelet-EVs, and leukocyte-EVs concentration yielded a higher AUC than the value of each individual biomarker as AUC was 0.893 (95% CI, 0.79–0.99). Patients with moderate stroke had significantly elevated miR-19a-3p expression levels compared to patients with minor stroke at the first day of IS. (AUC: 0.867, (95% CI, 0.74–0.10) p = 0.001). Conclusion: Combining different biomarkers of processes underlying IS pathophysiology might be beneficial for early diagnosis of ischemic events. Thus, we believe that in the future circulating biomarkers might be used in the prehospital phase of IS. In particular, circulating plasma EVs and non-coding RNAs including miRNAs are interesting candidates as bearers of circulating biomarkers due to their high stability in the blood and making them highly relevant biomarkers for IS diagnostics.
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13
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Xu J, Liao M. Long noncoding RNA SNHG6 promotes papillary thyroid cancer cells proliferation via regulating miR-186/CDK6 axis. Gland Surg 2021; 10:2935-2944. [PMID: 34804881 DOI: 10.21037/gs-21-586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 08/06/2021] [Accepted: 09/16/2021] [Indexed: 11/06/2022]
Abstract
Background Papillary thyroid cancer (PTC) is a common endocrine malignancy, and its incidence rate has been increasing in recent years. Long noncoding RNAs (lncRNAs) participate in cell biological processes through a variety of regulatory ways, and play an essential role in tumor development. Methods This study explored the expression of lncRNA small nucleolar RNA host gene 6 (SNHG6) in PTC by bioinformatics analysis, and quantitative real-time PCR (qRT-PCR). Cell counting kit-8 (CCK-8) assay, colony formation assay, and 5-ethynyl-2'-deoxyuridine (EdU) assay were used to study the effect of SNHG6 on the proliferation of PTC cells. Luciferase reporter gene assay and western blot were used to study the mechanism. Results SNHG6 was highly expressed in PTC tissue samples and cell lines. In vitro, overexpression of SNHG6 promoted the proliferation of PTC cells, while silencing SNHG6 inhibited the proliferation of PTC cells. miR-186 is the downstream target of SNHG6. SNHG6 regulates the proliferation of PTC cells through miR-186. In addition, CDK6 is the target gene of miR-186, which can inhibit the expression of CDK6 protein. SNHG6 can promote the expression of CDK6 by regulating miR-186. Conclusions SNHG6 is highly expressed in PTC and can promote the proliferation of PTC cells by regulating the miR-186/CDK6 axis, which is expected to become a potential therapeutic target for PTC.
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Affiliation(s)
- Jian Xu
- Department of General Surgery, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, China
| | - Miaomiao Liao
- Department of General Surgery, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, China
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14
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Wang Y, Wu Z, Huang Y, Zhang Y. Hsa_circ_0004058 inhibits apoptosis of SRA01/04 cells by promoting autophagy via miR-186/ATG7 axis. Exp Eye Res 2021; 211:108721. [PMID: 34375588 DOI: 10.1016/j.exer.2021.108721] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 08/01/2021] [Accepted: 08/05/2021] [Indexed: 02/07/2023]
Abstract
Senile cataract is a common age-related disease in ophthalmology. Hsa_circ_0004058 has been reported to be down-regulated in the lens epithelial cells of senile cataract patients, suggesting that hsa_circ_0004058 is associated with senile cataract. However, the underlying mechanism is still unknown. This study attempted to determine the functional role of hsa_circ_0004058 in senile cataract. We treated human lens epithelial cells (SRA01/04) with H2O2 as senile cataract model, and found that cell viability and autophagy of SRA01/04 cells were severely decreased by H2O2 treatment. Hsa_circ_0004058 was notably down-regulated in H2O2-treated SRA01/04 cells. Moreover, hsa_circ_0004058 overexpression reduced apoptotic cells and the expression of Cleaved-caspase-3 and Bax, and enhanced Bcl-2 expression in H2O2-treated SRA01/04 cells. However, hsa_circ_0004058 silencing caused the opposite results. Hsa_circ_0004058 up-regulation accelerated the expression of autophagy-related proteins LC3-II/LC3-I and Beclin-1 in H2O2-treated SRA01/04 cells, which was partly abolished by 3-Methyladenine (autophagy inhibitor). Additionally, hsa_circ_0004058 functioned as a competing endogenous RNA to competitive binding miR-186, and thus accelerated the expression of its down-stream target, ATG7. Hsa_circ_0004058 promoted autophagy of SRA01/04 cells by regulating miR-186/ATG7 axis. In conclusion, these data demonstrates that hsa_circ_0004058 inhibits apoptosis of SRA01/04 cells by promoting autophagy, which attributes to regulate miR-186/ATG7 axis. Thus, hsa_circ_0004058 may be a potential target for senile cataract treatment.
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Affiliation(s)
- Yingfei Wang
- Department of Ophthalmology, Henan Provincial People's Hospital, Henan Eye Hospital, Henan Eye Institute, No 7 Weiwu Road, Zhengzhou, 450003, China.
| | - Zhong Wu
- Department of Ophthalmology, Henan Provincial People's Hospital, Henan Eye Hospital, Henan Eye Institute, No 7 Weiwu Road, Zhengzhou, 450003, China
| | - Yalin Huang
- Department of Ophthalmology, Henan Provincial People's Hospital, Henan Eye Hospital, Henan Eye Institute, No 7 Weiwu Road, Zhengzhou, 450003, China
| | - Ying Zhang
- Department of Ophthalmology, Henan Provincial People's Hospital, Henan Eye Hospital, Henan Eye Institute, No 7 Weiwu Road, Zhengzhou, 450003, China
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15
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Xiong X, Tang B, Ji T, Li X, Bai S. Ameliorative effects of miR-186 on cisplatin-triggered acute kidney injury via targeting ZEB1. Am J Transl Res 2021; 13:4296-4308. [PMID: 34150015 PMCID: PMC8205703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Accepted: 12/30/2020] [Indexed: 06/12/2023]
Abstract
Cisplatin is a commonly used chemotherapy drug in cancers, which can lead to acute kidney injury (AKI). AKI can occur in almost one third of tumor patients, who receive cisplatin treatment. microRNAs (miRNAs) are significant tools in regulating the expression of crucial factors in multiple diseases, but little is known about their biological roles in AKI. As exhibited, miR-186 has been observed to be down-regulated in tumors. Our study concentrated on the function of miR-186 in cisplatin-triggered AKI. Here, we reported miR-186 was considerably decreased in the serum samples from AKI patients compared with those from the healthy controls. Additionally, we found in NRK-52E cells exposed to 6 mM cisplatin, miR-186 was greatly decreased time-dependently. Meanwhile, an AKI model in rats was successfully set in our study. Levels of serum creatinine and blood urea nitrogen were significantly induced by cisplatin exposure. In AKI rat models, miR-186 exhibited a rapid decrease in both the serum and the kidney tissues. Then, miR-186 overexpression improved NRK-52E cell proliferation and protected NRK-52E cells against cisplatin-triggered apoptosis. Furthermore, ZEB1 was identified and confirmed as a target gene of miR-186. It has been demonstrated that ZEB1 exerts crucial roles in the development of AKI. As evidenced in our current study, ZEB1 was remarkably elevated in AKI patients and AKI rat models. Moreover, ZEB1 was induced by indicated doses of cisplatin in different time periods in NRK-52E cells. ZEB1 inhibition rescued the reduced proliferation and increased apoptosis of NRK-52E cells. In conclusion, loss miR-186 expression contributed to cisplatin-induced AKI, partly through targeting ZEB1. miR-186 might be provided as an effective biomarker for AKI via targeting ZEB1.
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Affiliation(s)
- Xiaoyan Xiong
- Department of Nephrology, Qingpu Branch of Zhongshan Hospital Affiliated to Fudan University Qingpu District, Shanghai 201700, P. R. China
| | - Bo Tang
- Department of Nephrology, Qingpu Branch of Zhongshan Hospital Affiliated to Fudan University Qingpu District, Shanghai 201700, P. R. China
| | - Tingting Ji
- Department of Nephrology, Qingpu Branch of Zhongshan Hospital Affiliated to Fudan University Qingpu District, Shanghai 201700, P. R. China
| | - Xiaoying Li
- Department of Nephrology, Qingpu Branch of Zhongshan Hospital Affiliated to Fudan University Qingpu District, Shanghai 201700, P. R. China
| | - Shoujun Bai
- Department of Nephrology, Qingpu Branch of Zhongshan Hospital Affiliated to Fudan University Qingpu District, Shanghai 201700, P. R. China
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16
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Zhang Y, Zhang W. FOXD1, negatively regulated by miR-186, promotes the proliferation, metastasis and radioresistance of nasopharyngeal carcinoma cells. Cancer Biomark 2021; 28:511-521. [PMID: 32568181 DOI: 10.3233/cbm-191311] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
BACKGROUND Foxhead box D1 (FOXD1) is validated to be over-expressed in a variety of human malignancies and promotes cancer progression. Nevertheless, the role of FOXD1 and the associated mechanism in nasopharyngeal carcinoma (NPC) remain largely unknown. METHODS A total of seventy-five cases of NPC tissue samples were collected. FOXD1 expression in NPC tissues and cells (SUNE1, CNE1, CNE2, and HONE1) was detected using immunohistochemistry and Western blot, respectively. The relationship between FOXD1 expression and clinicopathological parameters of NPC patients was analyzed. FOXD1 mRNA and miR-186 expression in NPC tissues and cells was detected using quantitative polymerase chain reaction (qPCR). The cell viability of NPC cells was detected using CCK-8 assay. Colony survival of NPC cells exposed to different doses of radiation was detected using colony formation assay. Transwell assay was used to evaluate the migration and invasion of NPC cells. The dual-luciferase reporter gene assay was employed to verify the targeting relationship between miR-186 and FOXD1. RESULTS FOXD1 was over-expressed in NPC tissues (average fold change on mRNA level = 4.72), and its high expression was correlated to NPC positive lymph node metastasis and tissue differentiation. The over-expression of FOXD1 promoted the proliferation, migration, invasion and radio-resistance of NPC cells. On the contrary, the knock-down of FOXD1 inhibited the malignant phenotypes of the above cells. It was verified that FOXD1 was one of the downstream targets of miR-186 and was negatively regulated by it. CONCLUSION FOXD1, which is negatively regulated by miR-186, acts as a novel oncogene in NPC and serves as potential biomarker and therapeutic target for NPC. The research will provide great theoretical basis for further clinical diagnosis and therapy.
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17
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Bayat Z, Ghaemi Z, Behmanesh M, Soltani BM. Hsa- miR-186-5p regulates TGFβ signaling pathway through expression suppression of SMAD6 and SMAD7 genes in colorectal cancer. Biol Chem 2021; 402:469-480. [PMID: 33938174 DOI: 10.1515/hsz-2019-0407] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Accepted: 12/28/2020] [Indexed: 01/07/2023]
Abstract
TGFβ signaling is a known pathway to be involved in colorectal cancer (CRC) progression and miRNAs play crucial roles by regulating different components of this pathway. Hence, finding the link between miRNAs and the pathway could be beneficial for CRC therapy. Array data indicated that miR-186-5p is a differentially expressed miRNA in colorectal Tumor/Normal tissues and bioinformatics tools predicted SMAD6/7 (inhibitory SMADs) as bona fide targets of this miRNA. Here, we intended to investigate the regulatory effect of the miR-186-5p expression on TGFβ signaling in CRC. Firstly, the miR-186-5p overexpression in HCT116 cells resulted in a significant reduction of SMAD6/7 expression, measured through RT-qPCR. Then, the direct interactions of miR-186-5p with SMAD6/7 3'UTRs were supported through dual luciferase assay. Furthermore, miR-186-5p overexpression suppressed proliferation, cell viability, and migration while, it increased apoptosis in CRC cells, assessed by cell cycle, MTT, scratch and Annexin V/PI apoptosis assays. Consistently, miR-186-5p overexpression resulted in reduced CyclinD1 protein using western blot, and also resulted in increased P21 and decreased c-Myc expression. Overall, these results introduced miR-186-5p as a cell cycle suppressor through downregulation of SMAD6/7 expression. Thus, miR-186-5p might be served as a novel tumor suppressive biomarker and therapeutic target in CRC treatment.
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Affiliation(s)
- Zahra Bayat
- Department of Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran 14115-154, Islamic Republic of Iran
| | - Zahra Ghaemi
- Department of Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran 14115-154, Islamic Republic of Iran
| | - Mehrdad Behmanesh
- Department of Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran 14115-154, Islamic Republic of Iran
| | - Bahram M Soltani
- Department of Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran 14115-154, Islamic Republic of Iran
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18
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Li S, Wang Y, Wang M, Chen L, Chen S, Deng F, Zhu P, Hu W, Chen X, Zhao B, Ma G, Li Y. microRNA-186 alleviates oxygen-glucose deprivation/reoxygenation-induced injury by directly targeting hypoxia-inducible factor-1α. J Biochem Mol Toxicol 2021; 35:1-11. [PMID: 33759271 DOI: 10.1002/jbt.22752] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 12/24/2020] [Accepted: 02/24/2021] [Indexed: 01/23/2023]
Abstract
Previous studies have suggested that microRNA-186 (miR-186) can be induced under hypoxic conditions, and is associated with apoptosis. This study was undertaken to explore the exact role of this microRNA (miRNA) in the apoptotic death of neurons during cerebral ischemic/reperfusion (I/R) injury. To model cerebral ischemia/reperfusion (I/R) injuries, we utilized a transient middle cerebral artery occlusion approach in rats, as well as a model of oxygen-glucose deprivation/reoxygenation (OGD/R) in Neuro2a cells. We found that in both in vitro and in vivo models of cerebral I/R injuries, levels of miR-186 were markedly decreased. When we overexpressed miR-186, this was associated with a reduction in the apoptotic death of neuroblastoma cells in the OGD/R model system, whereas the opposite was true when this miRNA was instead inhibited. We further found miR-186 to directly target hypoxia-inducible factor 1α (HIF-1α) by interacting with the 3'-untranslated region of this mRNA. When we knocked down HIF-1α, this partially overcame the apoptotic death of cells in response to OGD/R injury and associated miR-186 downregulation. Our findings indicate that miR-186 is able to reduce ischemic injury to neurons at least in part through downregulating HIF-1α, suggesting that the miR-186/HIF-1α axis is a potential therapeutic target for the treatment of ischemic stroke.
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Affiliation(s)
- Shengnan Li
- Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China.,Institute of Neurology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Yajun Wang
- Maternal and Children's Health Research Institute, Shunde Maternal and Children's Hospital, Guangdong Medical University, Shunde, China
| | - Mengxu Wang
- Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China.,Department of Neurology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Linfa Chen
- Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China.,Department of Neurology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Shaofeng Chen
- Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China.,Department of Neurology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Fu Deng
- Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China.,Department of Neurology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Peiyi Zhu
- Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China.,Department of Neurology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Weidong Hu
- Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China.,Department of Neurology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Xinglan Chen
- Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China.,Department of Neurology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Bin Zhao
- Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China.,Institute of Neurology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Guoda Ma
- Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China.,Maternal and Children's Health Research Institute, Shunde Maternal and Children's Hospital, Guangdong Medical University, Shunde, China
| | - You Li
- Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China.,Institute of Neurology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
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19
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Yao H, Yang Z, Lou Y, Huang J, Yang P, Jiang W, Chen S. miR-186 Inhibits Liver Cancer Stem Cells Expansion via Targeting PTPN11. Front Oncol 2021; 11:632976. [PMID: 33816273 PMCID: PMC8012905 DOI: 10.3389/fonc.2021.632976] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 01/29/2021] [Indexed: 12/13/2022] Open
Abstract
MicroRNAs (miRNAs) participated in the regulation of tumorigenesis, progression, metastasis, recurrence and chemo-resistance of cancers. However, the potential function of miRNAs in cancer stem cells (CSCs) or tumor-initiating cells (T-ICs) was not clearly elucidated. In the present study, we found that miR-186 expression was reduced in liver CSCs. Functional studies showed that miR-186 knockdown facilitated liver CSCs self-renewal and tumorigenesis. Conversely, forced miR-186 expression suppressed liver CSCs self-renewal and tumorigenesis. Mechanically, miR-186 downregulated PTPN11 via binding to its 3'-UTR in liver CSCs. The correlation of miR-186 and PTPN11 was confirmed in Hepatocellular carcinoma (HCC) patients' tissues. Further study showed that interference of PTPN11 can abolished the discrepancy between miR-186 mimic and control HCC cells in self-renewal and the proportion of CSCs. Additionally, we found that miR-186 overexpression HCC cells were more sensitive to cisplatin treatment. Clinical cohort analysis showed that HCC patients with high miR-186 were benefited more from transcatheter arterial chemoembolization (TACE) treatment. In conclusion, our study demonstrates a new regulation mechanism of liver CSCs, a new target for HCC, and a biomarker for postoperative TACE.
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Affiliation(s)
- Haochen Yao
- Department of Emergency Surgery, The First Hospital of Jilin University, Changchun, China
- Department of Pathogenobiology, The Key Laboratory of Zoonosis, Chinese Ministry of Education, College of Basic Medical Science, Jilin University, Changchun, China
| | - Ziting Yang
- Department of Emergency, The 964th Hospital of the Chinese People’s Liberation Army, Changchun, China
| | - Yan Lou
- Department of Nephrology, The Second Hospital of Jilin University, Changchun, China
| | - Juanjuan Huang
- Department of Pathogenobiology, The Key Laboratory of Zoonosis, Chinese Ministry of Education, College of Basic Medical Science, Jilin University, Changchun, China
| | - Pinghua Yang
- Department of Hepatic Surgery, Third Affiliated Hospital of Second Military Medical University, Shanghai, China
| | - Weiqi Jiang
- Department of Hepatic Surgery, Third Affiliated Hospital of Second Military Medical University, Shanghai, China
| | - Shuai Chen
- Department of Emergency Surgery, The First Hospital of Jilin University, Changchun, China
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Niu Y, Wan C, Zhang J, Zhang S, Zhao Z, Zhu L, Wang X, Ren X, Wang J, Lei P. Aerobic exercise improves VCI through circRIMS2/ miR-186/BDNF-mediated neuronal apoptosis. Mol Med 2021; 27:4. [PMID: 33413076 PMCID: PMC7792181 DOI: 10.1186/s10020-020-00258-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Accepted: 12/09/2020] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Vascular cognitive impairment (VCI) is a common cognitive disorder caused by cerebrovascular disease, ranging from mild cognitive impairment to dementia. Studies have shown that aerobic exercise might alleviate the pathological development of VCI, and our previous study observed that aerobic exercise could alleviate VCI through NF-κB/miR-503/BDNF pathway. However, there are few studies on the mechanism. Therefore, it is of great significance to fill the gaps in the mechanism for the early diagnosis of VCI and the clinical prevention and treatment of vascular dementia. METHODS CircRNA microarray analysis and quantitative real-time PCR were used to detect the expression of circRNA regulating synaptic be exocytosis 2 (RIMS2) (circRIMS2). Cell apoptosis was determined by TdT-mediated dUTP nick-end labeling (TUNEL) assay. The dual-luciferase reporter assay was performed to verify the interaction between circRIMS2 and miR-186, as well as miR-186 and BDNF. RNA pull-down assay detected the binding between circRIMS2 and miR-186. A VCI mouse model was established by repeated ligation of bilateral common carotid arteries (2VO). The lentiviral interfering vector was injected into the VCI mice through the lateral ventricle. The mice in the aerobic exercise group performed 30 min (12 m/min) running for 5 days a week. A Morris water maze test was performed after 4 weeks. RESULTS The expression of circRIMS2 and BDNF in the serum of VCI patients was significantly reduced, miR-186 expression was increased, and the expression of circRIMS2 was increased in the 2VO group of mice undergoing aerobic exercise. The expression levels of circRIMS2 and BDNF in the oxygen and glucose deprivation-treated (OGD-treated) cells were decreased, the miR-186 expression and cell apoptosis were increased, while the effect was weakened after transfection with the lentiviral vector pLO-ciR-RIMS2. CircRIMS2 could bind to miR-186, and after interference with circRIMS2 in HT22 cells, the expression of miR-186 was increased. Besides, miR-186 could bind to BDNF, and BDNF expression was decreased because of the overexpression of miR-186 in HT22 cells. The expression level of BDNF in the pLO-ciR-RIMS2 group was increased, and apoptosis was decreased, but the miR-186 mimic weakened the effect of pLO-ciR-RIMS2. Aerobic exercise could shorten the average time that mice reached the platform in the Morris water maze, increase the expression level of circRIMS2 and BDNF, reduce miR-186 expression, and inhibit neuronal apoptosis. However, the interference with circRIMS2 weakened this effect. CONCLUSION The expression of circRIMS2 was down-regulated in VCI and aerobic exercise reduced neuronal apoptosis, and circRIMS2 improved VCI through the circRIMS2/miR-186/BDNF axis.
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Affiliation(s)
- Yali Niu
- Rehabilitation, The General Hospital, Tianjin Medical University, Tianjin, 300052, China
| | - Chunxiao Wan
- Rehabilitation, The General Hospital, Tianjin Medical University, Tianjin, 300052, China
| | - Jing Zhang
- Medical Imaging Department, The General Hospital, Tianjin Medical University, Tianjin, 300052, China
| | - Shu Zhang
- Institute of Neurology, The General Hospital, Tianjin Medical University, Tianjin, 300052, China
| | - Zilong Zhao
- Neurosurgery, The General Hospital, Tianjin Medical University, Tianjin, 300052, China
| | - Leshan Zhu
- Rehabilitation, The General Hospital, Tianjin Medical University, Tianjin, 300052, China
| | - Xiaodong Wang
- Rehabilitation, The General Hospital, Tianjin Medical University, Tianjin, 300052, China
| | - Xiaodong Ren
- Rehabilitation, The General Hospital, Tianjin Medical University, Tianjin, 300052, China
| | - Jing Wang
- Rehabilitation, The General Hospital, Tianjin Medical University, Tianjin, 300052, China
| | - Ping Lei
- Department of Geriatrics, Tianjin Medical University General Hospital, Tianjin Geriatrics Institute, 154 Anshan Rd., Tianjin, 300052, People's Republic of China.
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Zhang H, Zhang XY, Kang XN, Jin LJ, Wang ZY. LncRNA-SNHG7 Enhances Chemotherapy Resistance and Cell Viability of Breast Cancer Cells by Regulating miR-186. Cancer Manag Res 2020; 12:10163-10172. [PMID: 33116871 PMCID: PMC7569248 DOI: 10.2147/cmar.s270328] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Accepted: 09/14/2020] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Clinical tolerance to trastuzumab greatly affects the therapeutic effect in breast cancer (BC). Long-chain non-coding RNA (lncRNA) plays an important role in the development of trastuzumab resistance, in which SNHG7 can promote the epithelial mesenchymal transformation (EMT) of breast cancer cells into, while EMT is related to trastuzumab resistance of breast cancer cells. OBJECTIVE To investigate whether lncRNA-SNHG7 can enhance chemotherapy resistance and cell viability of BC cells by regulating miR-186. METHODS SK-BR-3 and SNHG7 of HER2+BC cells were induced to enhance the resistance of BC cells to trastuzumab by regulating miR-186, and to regulate the expression levels of SNHG7 and miR-186. The sensitivity of drug-resistant cells to trastuzumab and the changes of cell proliferation, migration, apoptosis, and EMT were measured and verified by tumorigenesis in vivo. The effects of miR-186 on SNHG7 were investigated through rescue experiments; the regulatory relationship between the expression of SNHG7 and miR-186 was verified by the double luciferase reporter (DLR) and the mechanism of SNHG7 was explored. RESULTS Down-regulation of SNHG7 or up-regulation of miR-186 could increase the sensitivity of BC cells to trastuzumab, inhibit the proliferation, migration and EMT, and promote apoptosis. Compared with the down-regulation of SNHG7 or miR-186 alone, simultaneous down-regulation of SNHG7 and miR-186 on drug-resistant cells brought notably lower sensitivity to trastuzumab and apoptosis rate, and higher proliferation and apoptosis ability. The DLR showed that miR-186 could specifically inhibit the expression of SNHG7. The results of tumorigenesis in vivo revealed that down-regulation of SNHG7 or up-regulation of miR-186 could improve the therapeutic effect of trastuzumab and reduce the tumor volume, and miR-186 could also antagonize the effect of SNHG7. CONCLUSION Down-regulation of SNHG7-targeted miR-186 can reverse trastuzumab resistance of BC cells, inhibit the proliferation, migration, and EMT levels of BC cells, and promote apoptosis.
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Affiliation(s)
- Hui Zhang
- Department of Thyroid and Breast III, Cangzhou Central Hospital, Cangzhou, Hebei061001, People’s Republic of China
| | - Xiao-Yu Zhang
- Department of Thyroid and Breast III, Cangzhou Central Hospital, Cangzhou, Hebei061001, People’s Republic of China
| | - Xiao-Ning Kang
- Department of Ultrasound, Cangzhou Central Hospital, Cangzhou, Hebei061001, People’s Republic of China
| | - Li-Jun Jin
- Department of Thyroid and Breast III, Cangzhou Central Hospital, Cangzhou, Hebei061001, People’s Republic of China
| | - Zun-Yi Wang
- Department of Thyroid and Breast III, Cangzhou Central Hospital, Cangzhou, Hebei061001, People’s Republic of China
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Liu L, Li X, Shi Y, Chen H. The long noncoding RNA FTX promotes a malignant phenotype in bone marrow mesenchymal stem cells via the miR-186/c-Met axis. Biomed Pharmacother 2020; 131:110666. [PMID: 32853911 DOI: 10.1016/j.biopha.2020.110666] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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: 04/29/2020] [Revised: 07/30/2020] [Accepted: 08/20/2020] [Indexed: 12/18/2022] Open
Abstract
Gliomas are the most common and aggressive primary tumours of the central nervous system in adults. Bone marrow-derived mesenchymal stem cells (BMSCs) are an important component of the glioma microenvironment. Our previous study indicated that BMSCs in the glioma microenvironment could be induced to malignantly transform by glioma stem cells (GSCs). The malignant transformation of BMSCs is closely related to glioma progression; however, the underlying mechanism of this transformation has not been fully clarified. In this study, we found that compared with the levels in normal BMSCs, the levels of the long noncoding RNA FTX transcript XIST regulator (lncRNA-FTX) were increased in malignantly transformed BMSCs (tBMSCs), which was associated with the proliferation, migration and invasion of tBMSCs. Next, by using a luciferase reporter assay and an RNA pull-down assay, we found that lncRNA-FTX acted as a sponge for miR-186 in tBMSCs. Further research revealed that miR-186 could bind to the 3'-UTR (untranslated region) of c-Met, which acts as an oncogene in gliomas. Through functional assays, we showed that lncRNA-FTX could regulate c-Met expression in tBMSCs in a miR-186-dependent manner. Based on these data, we concluded that lncRNA-FTX plays a key role in the GSC-mediated malignant transformation of BMSCs in the glioma microenvironment, which is of great significance for further understanding the pathogenesis of glioma.
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Affiliation(s)
- Liang Liu
- Department of Neurosurgery, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, China
| | - Xiaojian Li
- Department of Neurosurgery, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, China
| | - Yan Shi
- Department of Neurosurgery, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, China
| | - Hua Chen
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China.
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Ma D, Liu H, Qin Y, Li D, Cui Y, Li L, He J, Chen Y, Zhou X. Circ_0007142/ miR-186/FOXK1 axis promoted lung adenocarcinoma progression. Am J Transl Res 2020; 12:4728-4738. [PMID: 32913545 PMCID: PMC7476148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 07/18/2020] [Indexed: 06/11/2023]
Abstract
Circular RNAs (circRNAs) are a class of non-coding RNAs could affect expression of specific genes which may induce tumor occurrence and progression. In this study, we identified 32 differentially expressed circRNAs between five pairs of lung adenocarcinoma and paracancerous tissues using circRNA microarray. And circ_0007142 expression was the most upregulated in five lung adenocarcinoma tissues. Meanwhile, circ_0007142 expression was remarkably over-expressed in lung adenocarcinoma tissues and cells. In addition, knockdown of circ_0007142 inhibited proliferation, migration, invasion and induced apoptosis of lung adenocarcinoma cells. Furthermore, knockdown of circ_0007142 inhibited the biological behavior of lung adenocarcinoma through miR-186/FOXK1 axis and inactivated the Wnt/β-catenin signaling pathway. Altogether, our study suggests Circ_0007142/miR-186/FOXK1 axis may play as an important role in progression of lung adenocarcinoma, which provided a novel potential mechanism about this disease.
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Affiliation(s)
- Dongjie Ma
- Department of Thoracic Surgery, Peking Union Medical College Hospital Beijing 100730, China
| | - Hongsheng Liu
- Department of Thoracic Surgery, Peking Union Medical College Hospital Beijing 100730, China
| | - Yingzhi Qin
- Department of Thoracic Surgery, Peking Union Medical College Hospital Beijing 100730, China
| | - Danqing Li
- Department of Thoracic Surgery, Peking Union Medical College Hospital Beijing 100730, China
| | - Yushang Cui
- Department of Thoracic Surgery, Peking Union Medical College Hospital Beijing 100730, China
| | - Li Li
- Department of Thoracic Surgery, Peking Union Medical College Hospital Beijing 100730, China
| | - Jia He
- Department of Thoracic Surgery, Peking Union Medical College Hospital Beijing 100730, China
| | - Yeye Chen
- Department of Thoracic Surgery, Peking Union Medical College Hospital Beijing 100730, China
| | - Xiaoyun Zhou
- Department of Thoracic Surgery, Peking Union Medical College Hospital Beijing 100730, China
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Liu Y, Guo R, Qiao Y, Han L, Liu M. LncRNA NNT-AS1 contributes to the cisplatin resistance of cervical cancer through NNT-AS1/ miR-186/HMGB1 axis. Cancer Cell Int 2020; 20:190. [PMID: 32489326 PMCID: PMC7247171 DOI: 10.1186/s12935-020-01278-9] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2019] [Accepted: 05/18/2020] [Indexed: 12/21/2022] Open
Abstract
Background Cisplatin (DDP) is a major chemotherapeutic drug which was widely used for cervical cancer (CC) patients with advanced or recurrent although its limitation in the development of resistance. LncRNA nicotinamide nucleotide transhydrogenase-antisense RNA1 (NNT-AS1) has been reported to be involved in the DDP resistance. However, the role of NNT-AS1 in DDP resistance in CC remain unknown. Methods The mRNA expression of NNT-AS1, microRNA-186 (miR-186) and HMGB1 was detected by quantitative real-time polymerase chain reaction (qRT-PCR). Cell proliferation and apoptosis abilities were measured via MTT assay or flow cytometry, respectively. Western blot was used to measure the expression level of HMGB1, Bax, Bcl-2, Cleaved-caspase 3, N-cadherin, Vimentin and E-cadherin. Cell migration and invasion abilities were analyzed using Transwell assay. The interaction among NNT-AS1, miR-186 and HMGB1 was confirmed by luciferase reporter assay and RNA pull-down assay. Murine xenograft model was established using stably transfected SiHa/DDP cells. Results NNT-AS1 level was significantly elevated in CC tissues and cells, especially in DDP-resistant tumors and cell lines. Subsequently, loss-of function assays indicated that NNT-AS1 silence could attenuate DDP resistance by inhibiting proliferation, metastasis and EMT but inducing apoptosis in DDP-resistant CC cells. Besides that, knockdown of NNT-AS1 also antagonized DDP resistance in vivo. Bioinformatics predication revealed NNT-AS1 directly bound to miR-186 and HMGB1 was a target of miR-186. Additionally, NNT-AS1 could regulate HMGB1 expression via targeting miR-186. Furthermore, restoration experiments showed NNT-AS1 knockdown might improve DDP-sensitivity of CC cells via blocking HMGB1 expression by competitive interaction with miR-186. Conclusion NNT-AS1 improved chemoresistance of DDP-resistant CC cells via modulating miR-186/HMGB1 axis.
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Affiliation(s)
- Yanjie Liu
- Department of Gynaecology, The First Affiliated Hospital of Zhengzhou University, No. 1, Jianshe East Road, Zhengzhou, 450052 China
| | - Ruixia Guo
- Department of Gynaecology, The First Affiliated Hospital of Zhengzhou University, No. 1, Jianshe East Road, Zhengzhou, 450052 China
| | - Yuhuan Qiao
- Department of Gynaecology, The First Affiliated Hospital of Zhengzhou University, No. 1, Jianshe East Road, Zhengzhou, 450052 China
| | - Liping Han
- Department of Gynaecology, The First Affiliated Hospital of Zhengzhou University, No. 1, Jianshe East Road, Zhengzhou, 450052 China
| | - Mingzhu Liu
- Gynaecologic Department of Traditional Chinese Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052 China
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Xiao J, Qin S, Li W, Yao L, Huang P, Liao J, Liu J, Li S. Osteogenic differentiation of rat bone mesenchymal stem cells modulated by MiR-186 via SIRT6. Life Sci 2020; 253:117660. [PMID: 32294474 DOI: 10.1016/j.lfs.2020.117660] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 03/26/2020] [Accepted: 04/08/2020] [Indexed: 11/20/2022]
Abstract
AIMS Osteoporosis has been known to generally result from an imbalance between bone formation and resorption. Osteogenesis is the process of differentiation of mesenchymal stem cells (MSCs) into osteoblasts. Sirtuin6 (SIRT6) has been reported to mediate osteogenic differentiation (OD) in rat bone MSCs (rBMSCs). The present study aimed to assess the influence of microRNA miR-186 on the proliferation and OD potential of rBMSCs. MAIN METHODS OD was performed and evaluated through Alizarin red S staining, alkaline phosphatase (ALP) activity, and specific marker expression. KEY FINDINGS miR-186 downregulation was observed during OD. rBMSCs with miR-186 overexpression were generated via transfection. Compared with vehicle negative controls, miR-186 upregulation significantly repressed rBMSCs' OD, as evidenced by a reduced ALP activity and decreased mRNA levels of osteogenic markers [osteocalcin, Runx2, BSP, and ALP]. Furthermore, bioinformatic prediction and dual-luciferase reporter assay demonstrated that miR-186 targeted SIRT6 3'-UTR for silencing. SIRT6 overexpression reversed the inhibitory effect of miR-186 on the OD of rBMSCs. Additionally, further examination showed that the activation of nuclear factor-kappa B (NFκB) pathway was involved in the miR-186/SIRT6 signal axis, and phorbol 12-myristate 13-acetate, a NFκB activator, also inhibited the OD of rBMSCs. SIGNIFICANCE The present study results may demonstrate a novel mechanism of rBMSCs OD via miR-186-SIRT6 interaction.
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26
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Xiang Y, Chen YJ, Yan YB, Liu Y, Qiu J, Tan RQ, Tian Q, Guan L, Niu SS, Xin HW. MiR-186 bidirectionally regulates cisplatin sensitivity of ovarian cancer cells via suppressing targets PIK3R3 and PTEN and upregulating APAF1 expression. J Cancer 2020; 11:3446-3453. [PMID: 32284740 PMCID: PMC7150455 DOI: 10.7150/jca.41135] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2019] [Accepted: 02/25/2020] [Indexed: 12/22/2022] Open
Abstract
Ovarian cancer is a highly lethal malignancy in the female reproductive system. Platinum drugs, represented by cisplatin, are the first-line chemotherapeutic agents for treatment of various malignancies including ovarian cancer, but drug resistance leads to chemotherapy failure. MicroRNAs emerged as promising molecules in reversal of cisplatin resistance. MiR-186 was reported to be downregulated in the cisplatin-resistant ovarian cell lines and miR-186 expression increased cisplatin sensitivity. However, we found the bidirectional regulatory effects of miR-186 on cisplatin sensitivity for the first time that overexpression of miR-186 at low concentration increased the cisplatin sensitivity of ovarian cancer cells A2780/DDP, while high concentration of miR-186 decreased the cisplatin sensitivity. The survival assay in other types of cancer cell lines verified the bidirectional regulatory function of miR-186 on cisplatin sensitivity in dose and cell type dependent manners. MiR-186 suppressed the protein levels of PTEN and PIK3R3 dose-dependently, which are opposite regulatory molecules of the oncogenic AKT pathway. MiR-186 also enhanced the protein levels of apoptotic gene APAF1 dose-dependently. We proposed the final effects of PTEN and APAF1 outweighed PIK3R3 when miR-186 at low concentration so as to increase the cisplatin sensitivity of ovarian cancer cells, while the final effects of PIK3R3 outweighed PTEN and APAF1 when miR-186 at high concentration so as to decrease the cisplatin sensitivity. We concluded the outcome of regulation of these opposite functional molecules contributed to the bidirectional regulatory effects of miR-186 in ovarian cancer cisplatin sensitivity. It deserves more attentions when developing therapeutic strategies based on the bidirectional functional miRNAs.
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Affiliation(s)
- Ying Xiang
- Department of Cell Biology and Genetics, School of Basic Medicine, Health Science Center, Yangtze University, Jingzhou, Hubei 434023, China.,Laboratory of Oncology, Center for Molecular Medicine, School of Basic Medicine, Health Science Center, Yangtze University, 1 Nanhuan Road, Jingzhou, Hubei 434023, China.,The First School of Clinical Medicine, Health Science Center, Yangtze University, Nanhuan Road, Jingzhou, Hubei 434023, China
| | - Ya-Jun Chen
- Department of Oncology, Jingzhou Central Hospital, The Second Clinical Medical College, Yangtze University, Jingzhou, Hubei 434023, China
| | - Yun-Bo Yan
- Laboratory of Oncology, Center for Molecular Medicine, School of Basic Medicine, Health Science Center, Yangtze University, 1 Nanhuan Road, Jingzhou, Hubei 434023, China
| | - Yu Liu
- Laboratory of Oncology, Center for Molecular Medicine, School of Basic Medicine, Health Science Center, Yangtze University, 1 Nanhuan Road, Jingzhou, Hubei 434023, China
| | - Jiao Qiu
- Laboratory of Oncology, Center for Molecular Medicine, School of Basic Medicine, Health Science Center, Yangtze University, 1 Nanhuan Road, Jingzhou, Hubei 434023, China
| | - Rui-Qiao Tan
- Laboratory of Oncology, Center for Molecular Medicine, School of Basic Medicine, Health Science Center, Yangtze University, 1 Nanhuan Road, Jingzhou, Hubei 434023, China
| | - Qing Tian
- Department of Cell Biology and Genetics, School of Basic Medicine, Health Science Center, Yangtze University, Jingzhou, Hubei 434023, China
| | - Li Guan
- Department of Cell Biology and Genetics, School of Basic Medicine, Health Science Center, Yangtze University, Jingzhou, Hubei 434023, China
| | - Shuai-Shuai Niu
- Department of Cell Biology and Genetics, School of Basic Medicine, Health Science Center, Yangtze University, Jingzhou, Hubei 434023, China
| | - Hong-Wu Xin
- Laboratory of Oncology, Center for Molecular Medicine, School of Basic Medicine, Health Science Center, Yangtze University, 1 Nanhuan Road, Jingzhou, Hubei 434023, China.,Department of Molecular Biology and Biochemistry, School of Basic Medicine, Health Science Center, Yangtze University, Jingzhou, Hubei 434023, China
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Cui X, Wang Z, Li J, Zhu J, Ren Z, Zhang D, Zhao W, Fan Y, Zhang D, Sun R. Cross talk between RNA N6-methyladenosine methyltransferase-like 3 and miR-186 regulates hepatoblastoma progression through Wnt/β-catenin signalling pathway. Cell Prolif 2020; 53:e12768. [PMID: 31967701 PMCID: PMC7106953 DOI: 10.1111/cpr.12768] [Citation(s) in RCA: 79] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 12/13/2019] [Accepted: 01/09/2020] [Indexed: 12/16/2022] Open
Abstract
Objectives N6‐methyladenosine (m6A) is a ubiquitous epigenetic RNA modification that plays a pivotal role in tumour development and metastasis. In this study, we aimed to investigate the expression profiling, clinical significance, biological function and the regulation of m6A‐related genes in hepatoblastoma (HB). Materials and Methods The mRNA and protein expression levels of m6A‐related genes were analysed using Gene Expression Omnibus (GEO) and tissue microarray (TMA) cohort. Kaplan‐Meier analysis was performed to evaluate the prognostic value of m6A‐related genes in HB. Knockdown of m6A‐related genes was conducted to analyse its function on cell proliferation, migration and invasion. Furthermore, bioinformatics analysis and experimental verification were used to explore the potential molecular mechanism and signalling pathway. Results We found that most m6A‐related genes were significantly upregulated in HB tumour tissues. High levels of methyltransferase‐like 3 (METTL3, P = .013), YTHDF2 (P = .037) and FTO (P = .032) indicated poor clinical outcomes, and the upregulation of METTL3 was an independent prognostic factor in HB patients. Functional assays showed that knockdown of METTL3 could dramatically suppress the proliferation, migration and invasion of HB cells. In addition, METTL3 was identified to be a direct target of microRNA‐186 (miR‐186). Consistently, miR‐186 was low expressed in HB tumour tissues. Moreover, overexpression of miR‐186 significantly inhibited cell aggressive phenotype both in vitro and in vivo, while the inhibitory effect could be reversed by METTL3 overexpression. Mechanism study indicated that miR‐186/METTL3 axis contributed to the progression of HB via the Wnt/β‐catenin signalling pathway. Conclusions M6A‐related genes were frequently dysregulated in HB. miR‐186/METTL3/Wnt/β‐catenin axis might serve as novel therapeutic targets and prognostic biomarkers in HB.
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Affiliation(s)
- Xichun Cui
- Pediatric Surgery Department, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Zhifang Wang
- Endocrinology Department, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Jianhao Li
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Jianming Zhu
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Zhigang Ren
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Dandan Zhang
- Pathology Department, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Wei Zhao
- Pediatric Surgery Department, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yingzhong Fan
- Pediatric Surgery Department, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Da Zhang
- Pediatric Surgery Department, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Ranran Sun
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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Xie H, Chen J, Lv X, Zhang L, Wu J, Ge X, Yang Q, Zhang D, Chen J. Clinical Value of Serum and Exhaled Breath Condensate miR-186 and IL-1β Levels in Non-Small Cell Lung Cancer. Technol Cancer Res Treat 2020; 19:1533033820947490. [PMID: 32851926 PMCID: PMC7457640 DOI: 10.1177/1533033820947490] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 06/28/2020] [Accepted: 07/13/2020] [Indexed: 12/24/2022] Open
Abstract
OBJECTIVE Our study aimed to investigate the expression level and clinical significance of serum and exhaled breath condensate miR-186 and IL-1β in non-small cell lung cancer patients. METHODS The serum and exhaled breath condensate specimens of 62 non-small cell lung cancer patients and 60 healthy controls were collected to detect miR-186 expression levels by real-time fluorescent quantitative PCR. Enzyme linked immunosorbent assay was applied to examine IL-1β concentration. Statistical analyses were used to evaluate the correlation between miR-186 and IL-1β in serum and clinicopathological features, traditional serum tumor markers, and inflammatory markers. The diagnostic efficacy of miR-186 and IL-1β for non-small cell lung cancer was evaluated by receiver operating characteristic curve analysis. The correlation between miR-186 and IL-1β was determined. RESULTS ① The relative expression level of miR-186 was greatly reduced in the serum and EBC of patients with non-small cell lung cancer, and the miR-186 expression level was reduced in different TNM stages of non-small cell lung cancer, from the early to later stages. ② The IL-1β concentration in serum and exhaled breath condensate of patients with non-small cell lung cancer was increased. ③ Serum miR-186 and IL-1β levels were closely related to lymph node metastasis, and the low expression of serum miR-186 and the high concentration of IL-1β were associated with higher serum carcinoembryonic antigen, C-reactive protein, and erythrocyte sedimentation rate levels. ④ ROC curve analysis showed that exhaled breath condensate miR-186 had higher area under the curve than serum miR-186, and the combined detection showed higher diagnostic efficacy than the separate detection. In addition, the combined detection of IL-1β and miR-186 has a larger AUC than the separate detection of both. ⑤ The correlation between serum miR-186 and IL-1β was negative. CONCLUSION miR-186 and IL-1β are expected to be potential diagnostic biomarkers for non-small cell lung cancer.
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Affiliation(s)
- Haiqin Xie
- Department of Respiratory Medicine, Affiliated Hospital 2 of Nantong
University, Nantong, China
| | - Jinliang Chen
- Department of Respiratory Medicine, Affiliated Hospital 2 of Nantong
University, Nantong, China
| | - Xuedong Lv
- Department of Respiratory Medicine, Affiliated Hospital 2 of Nantong
University, Nantong, China
| | - Lu Zhang
- Department of Respiratory Medicine, Affiliated Hospital 2 of Nantong
University, Nantong, China
| | - Jinnan Wu
- Department of Respiratory Medicine, Affiliated Hospital 2 of Nantong
University, Nantong, China
| | - Xin Ge
- Medical Research Center, Affiliated Hospital 2 of Nantong
University, Nantong, China
| | - Qichang Yang
- Department of Pathology, Affiliated Hospital 2 of Nantong
University, Nantong, China
| | - Dongmei Zhang
- Medical Research Center, Affiliated Hospital 2 of Nantong
University, Nantong, China
| | - Jianrong Chen
- Department of Respiratory Medicine, Affiliated Hospital 2 of Nantong
University, Nantong, China
- Medical Research Center, Affiliated Hospital 2 of Nantong
University, Nantong, China
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Yang H, Xie J, Zhang J, Chang Y, Han J. [Inhibiting miR-186 expression alleviates mitochondrial damage in hypoxic human umbilical vein endothelial cells]. Nan Fang Yi Ke Da Xue Xue Bao 2019; 39:898-903. [PMID: 31511208 DOI: 10.12122/j.issn.1673-4254.2019.08.04] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To investigate the effect of miR-186 inhibition on the expression of hypoxia-inducible factor-1α (HIF-α) and mitochondrial function in hypoxic vascular endothelial cells. METHODS Human umbilical vein endothelial cells (HUVECs) cultured in routine or hypoxic conditions for 6 h were examined for the expression of miR-186. A miR-186 inhibitor was transfected in the HUVECs, and the cells were subsequently cultured in hypoxic condition for 6 h to observe the changes in the mitochondrial structure under an electron microscope. The changes in the mRNA and protein expressions of HIF-1α in response to miR-186 interference were tested using real-time fluorescent quantitative PCR and Western blotting. RESULTS The expression of miR-18 was mildly increased in HUVECs after hypoxic exposure for 6 h (P=0.0188). Interference of miR-186 expression obviously promoted the mRNA and protein expressions of HIF-1α in HUVECs. In hypoxic conditions, miR-186 interference significantly reduced mitochondrial damage in HUVECs as observed under electron microscope (P=0.0297). CONCLUSIONS Inhibition of miR-186 protects vascular endothelial cells against hypoxic injuries by promoting HIF-α expression to lessen mitochondrial damage, suggesting the possibility of targeted miR-186 interference for treatment of hemorrhagic shock.
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Affiliation(s)
- Haifan Yang
- Key Laboratory of Modern Teaching Technology of Ministry of Education, Shaanxi Normal University, Xi'an 710062, China
| | - Jiangang Xie
- Department of Emergency Medicine, Xijing Hospital, Air Force Medical University, Xi'an 710032, China
| | - Jinming Zhang
- Key Laboratory of Modern Teaching Technology of Ministry of Education, Shaanxi Normal University, Xi'an 710062, China
| | - Yuan Chang
- Key Laboratory of Modern Teaching Technology of Ministry of Education, Shaanxi Normal University, Xi'an 710062, China
| | - Jing Han
- Key Laboratory of Modern Teaching Technology of Ministry of Education, Shaanxi Normal University, Xi'an 710062, China
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30
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Wang Z, Sha HH, Li HJ. Functions and mechanisms of miR-186 in human cancer. Biomed Pharmacother 2019; 119:109428. [PMID: 31525641 DOI: 10.1016/j.biopha.2019.109428] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [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: 06/21/2019] [Revised: 08/27/2019] [Accepted: 09/02/2019] [Indexed: 12/30/2022] Open
Abstract
MicroRNAs (miRNAs) are small noncoding RNAs that regulate gene expression at the post-transcriptional level. Mounting evidence suggests the involvement of miRNAs in carcinogenesis and the development of human cancer. Among the miRNAs, miR-186 has been extensively studied in various cancers. The expression of miR-186 in tissues varies depending on the type of cancer and miR-186 in tissues and body fluids may serve as a marker for the diagnosis and prognosis of cancers. Various biological processes in human cancer are affected by miR-186. Additionally, miR-186 itself is regulated by several factors. Thus, this evidence highlights the potential value of miR-186 in the diagnosis, prognosis and treatment of human cancer.
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Affiliation(s)
- Zhen Wang
- Department of Orthopedics, Taizhou Clinical Medical School of Nanjing Medical University (Taizhou People's Hospital), Taizhou, Jiangsu, China
| | - Huan-Huan Sha
- Department of Chemotherapy, Jiangsu Cancer Hospital and Jiangsu Institute of Cancer Research and Nanjing Medical University Affiliated Cancer Hospital, Nanjing, Jiangsu, China
| | - Hai-Jun Li
- Department of Orthopedics, Taizhou Clinical Medical School of Nanjing Medical University (Taizhou People's Hospital), Taizhou, Jiangsu, China.
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31
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Wu J, Ferragut Cardoso AP, States VAR, Al-Eryani L, Doll M, Wise SS, Rai SN, States JC. Overexpression of hsa- miR-186 induces chromosomal instability in arsenic-exposed human keratinocytes. Toxicol Appl Pharmacol 2019; 378:114614. [PMID: 31176655 PMCID: PMC6746570 DOI: 10.1016/j.taap.2019.114614] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 05/27/2019] [Accepted: 06/04/2019] [Indexed: 01/04/2023]
Abstract
The mechanism of arsenic-induced skin carcinogenesis is not yet fully understood. Chromosomal instability contributes to aneuploidy and is a driving force in carcinogenesis. Arsenic causes mitotic arrest and induces aneuploidy. hsa-miR-186 overexpression is associated with metastatic cancers as well as arsenic-induced squamous cell carcinoma and is reported to target several mitotic regulators. Decreased levels of these proteins can dysregulate chromatid segregation contributing to aneuploidy. This work investigates the potential aneuploidogenic role of hsa-miR-186 in arsenic carcinogenesis. Clones of immortalized human keratinocytes (HaCaT) stably transfected with a hsa-miR-186 expression or empty vector were isolated. Three clones with high and low hsa-miR-186 expression determined by RT-qPCR were selected for further analysis and cultured with 0 or 100 nM NaAsO2 for 8 weeks. Analysis of mitoses revealed that chromosome number and structural abnormalities increased in cells overexpressing hsa-miR-186 and were further increased by arsenite exposure. Double minutes were the dominant structural aberrations. The peak number of chromosomes also increased. Cells with >220 to >270 chromosomes appeared after 2 months in hsa-miR-186 overexpressing cells, indicating multiple rounds of endomitosis had occurred. The fraction of cells with increased chromosome number or structural abnormalities did not increase in passage matched control cells. Levels of selected target proteins were determined by western blot. Expression of BUB1, a predicted hsa-miR-186 target was suppressed in hsa-miR-186 overexpressing clones, but increased with arsenite exposure. CDC27 remained constant under all conditions. These results suggest that overexpression of miR-186 in arsenic exposed tissues likely induces aneuploidy contributing to arsenic-induced carcinogenesis.
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Affiliation(s)
- Jiguo Wu
- Department of Pharmacology and Toxicology, University of Louisville, Louisville, KY 40292, USA; Department of Environmental Health Science, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Ana P Ferragut Cardoso
- Department of Pharmacology and Toxicology, University of Louisville, Louisville, KY 40292, USA
| | - Vanessa A R States
- Department of Pharmacology and Toxicology, University of Louisville, Louisville, KY 40292, USA
| | - Laila Al-Eryani
- Department of Pharmacology and Toxicology, University of Louisville, Louisville, KY 40292, USA
| | - Mark Doll
- Department of Pharmacology and Toxicology, University of Louisville, Louisville, KY 40292, USA
| | - Sandra S Wise
- Department of Pharmacology and Toxicology, University of Louisville, Louisville, KY 40292, USA
| | - Shesh N Rai
- Biostatisitcs and Bioinformatics Shared Facility, JGB Cancer Center and Department of Bioinformatics and Biostatistics, University of Louisville, Louisville, KY 40292, USA
| | - J Christopher States
- Department of Pharmacology and Toxicology, University of Louisville, Louisville, KY 40292, USA.
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32
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Chen H, Li M, Huang P. LncRNA SNHG16 Promotes Hepatocellular Carcinoma Proliferation, Migration and Invasion by Regulating miR-186 Expression. J Cancer 2019; 10:3571-3581. [PMID: 31293662 PMCID: PMC6603422 DOI: 10.7150/jca.28428] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Accepted: 04/30/2019] [Indexed: 12/11/2022] Open
Abstract
Long non-coding RNA (lncRNA) and microRNA (miRNA) play an important role in genesis and progression of tumors. The aim of this study was to explore the expression, biological function and molecular mechanism of small nucleolar RNA host gene 16 (SNHG16) in HCC. RT-qPCR was conducted to evaluate the expression level of SNHG16 in HCC tissues and cell lines. Our findings showed for the first time that SNHG16 was up-regulated in HCC tissues and cell lines. The expression of SNHG16 in cancer tissues was highly correlated with tumor size, TNM stage, ALT expression level and HBV DNA level. Moreover, cell proliferation, migration and invasion were detected by CCK-8 assay, transwell migration assay and transwell invasion assay, respectively. Xenograft tumor experiment was used to determine the biological function of SNHG16 in vivo. As revealed by our data, SNHG16 accelerated the proliferation, migration and invasion of HCC cell. SNHG16 facilitated tumor formation in vivo. Next, the relationship between SNHG16, miR-186 and ROCK1 were analyzed using bioinformatics analysis, qRT-PCR, luciferase reporter assay and western blot. Further molecular mechanism studies reported that the expression of SNHG16 was negatively correlated with the level of miR-186 and SNHG16 directly bound to miR-186. SNHG16 and miR-186 repressed each other. Notably, rescue experiments were conducted and showed that miR-186 reversed the effect of SNHG16 on cell. Taken together, SNHG16 promoted HCC cell proliferation, migration and invasion by functioning as a competitive endogenous RNA (ceRNA) to negatively regulate miR-186 expression. Our data suggested that SNHG16 might be a potential biomarker and a new therapeutic target for HCC.
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Affiliation(s)
- Hang Chen
- National Key Clinical Department, Department of Hepatobiliary Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing Medical University, Chongqing 400000, P.R. China
| | - Molin Li
- National Key Clinical Department, Department of Hepatobiliary Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing Medical University, Chongqing 400000, P.R. China
| | - Ping Huang
- National Key Clinical Department, Department of Hepatobiliary Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing Medical University, Chongqing 400000, P.R. China
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33
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Wang H, Ou J, Jian Z, Ou Y. miR-186 modulates hepatocellular carcinoma cell proliferation and mobility via targeting MCRS1-mediated Wnt/β-catenin signaling. J Cell Physiol 2019; 234:23135-23145. [PMID: 31140612 DOI: 10.1002/jcp.28878] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [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: 03/04/2019] [Revised: 05/03/2019] [Accepted: 05/07/2019] [Indexed: 12/20/2022]
Abstract
Previous studies have revealed that miR-186 is involved in the pathogenesis of many malignancies. However, the role of miR-186 in hepatocellular carcinoma (HCC) carcinogenesis and its detailed mechanism are poorly understood. This study was to investigate the function of miR-186 in modulating HCC cell proliferation, cell cycle, migration, and invasion. We found that miR-186 was decreased in HCC tissues and cell lines. Loss-of-function experiments showed that reduction of miR-186 dramatically enhanced tumor cell proliferation and metastasis. Besides, miR-186 also participated in the modulation of the cell cycle. In addition, luciferase reporter assays and Western blot analysis showed that MCRS1 was a novel target of miR-186 in HCC cells. Notably, upregulation of miR-186 suppressed the nuclear β-catenin accumulation and blocked the activation of Wnt/β-catenin signaling in HCC cells. Forced MCRS1 expression abrogated the inhibitory effect of miR-186 on cell growth, metastasis and Wnt/β-catenin signaling in HCC cells. Our findings may provide new insight into the pathogenesis of HCC and miR-186/ MCRS1 might function as new therapeutic targets for HCC.
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Affiliation(s)
- Huiling Wang
- Department of General Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Jinrui Ou
- Department of General Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Zhixiang Jian
- Department of General Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Yingliang Ou
- Department of General Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
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34
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Deng S, Xiang JJ, Ge HP, Hu ZP, Shen JP, Lin SY, Zeng YQ. The role of MIR-186 and ZNF545 in inhibiting the proliferation of multiple myeloma cells. J BIOL REG HOMEOS AG 2019; 33:721-729. [PMID: 31165610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
This study aimed to investigate the mechanism underlying the inhibitory effect of tumor suppressor gene miR-186 and zinc finger protein 545 (ZNF545) on the proliferation of multiple myeloma (MM) cells. CD138 magnetic beads were used to isolate different types of myeloma cell lines (KM3, U266, RPMI-8226, and H929), which were then infected by lentivirus carrying the miR-186 gene. Using uninfected myeloma cells as the control, MTT [3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2-H-tetrazolium bromide, Thiazolyl Blue Tetrazolium Bromide] assay was performed to calculate the rate of cell proliferation at different time points. In addition, the correlation between the expression of Jagged 1 and miR-186 was analyzed by real-time Polymerase Chain Reaction (PCR). Furthermore, the effect of 5-Aza-2-deoxycytidine and acetylase inhibitor Trichomycin A (TSA) on the expression of ZNF545 and proliferation/apoptosis of MM cells was investigated using Reverse Transcription-Polymerase Chain Reaction (RT-PCR), Western blotting (WB), MTS [3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium] cell proliferation assay, and Annexin V-FITC/PI staining. Compared with the control group, the proliferation of miR-186-overexpressing U266 and RPMI-8226 cells was significantly decreased. In cell cloning experiments, miR-186 decreased the number of U266 and RPMI-8226 clones while reducing the protein expression of Jagged 1. The expression level of ZNF545 in myeloma patients was also reduced to some extent. ZNF545 protein also promoted the apoptosis of myeloma cells. By inhibiting the proliferation of myeloma cells, miR-186 gene and ZNF protein may be used as tumor suppressors in the treatment of myeloma.
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Affiliation(s)
- S Deng
- Department of Hematology, The First Affiliated Hospital of Zhejiang Chinese Medical Universi¬ty, Hangzhou, Zhejiang Province, China
| | - J J Xiang
- Department of Hematology, The First Affiliated Hospital of Zhejiang Chinese Medical Universi¬ty, Hangzhou, Zhejiang Province, China
| | - H P Ge
- Department of Hematology, The First Affiliated Hospital of Zhejiang Chinese Medical Universi¬ty, Hangzhou, Zhejiang Province, China
| | - Z P Hu
- Department of Hematology, The First Affiliated Hospital of Zhejiang Chinese Medical Universi¬ty, Hangzhou, Zhejiang Province, China
| | - J P Shen
- Department of Hematology, The First Affiliated Hospital of Zhejiang Chinese Medical Universi¬ty, Hangzhou, Zhejiang Province, China
| | - S Y Lin
- Department of Hematology, The First Affiliated Hospital of Zhejiang Chinese Medical Universi¬ty, Hangzhou, Zhejiang Province, China
| | - Y Q Zeng
- Department of Orthopedics, Tongde Hospital of Zhejiang Province, Hangzhou, Zhejiang Province, China
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35
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Lin L, Sun J, Wu D, Lin D, Sun D, Li Q, Chen J, Niu H, He P, Ding Y. MicroRNA-186 is associated with hypoxia-inducible factor-1α expression in chronic obstructive pulmonary disease. Mol Genet Genomic Med 2018; 7:e531. [PMID: 30575333 PMCID: PMC6418446 DOI: 10.1002/mgg3.531] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Revised: 10/17/2018] [Accepted: 10/26/2018] [Indexed: 12/24/2022] Open
Abstract
Background MicroRNAs (miRNAs) are a family of small noncoding RNAs and are essential in the regulation of gene expression. Their impacts on gene expression have been reported in various diseases. The role of hypoxia‐inducible factor 1 alpha (HIF‐1α) in the development and progression of chronic obstructive pulmonary disease (COPD) has also been demonstrated. However, the role of microRNA‐186 (miR‐186) in relation to HIF in COPD is unknown. Methods Cell culture experiments were performed using human lung fibroblast cells (MRC‐5). Cell viability was determined by MTT and flow cytometry assays. Reverse transcriptase‐polymerase chain reaction (RT‐PCR) and Western blot analysis were used to assess the expression levels of HIF‐1α and inflammatory cytokines. Dual‐luciferase reporter assays were used to reveal the correlation between miR‐186 and HIF‐1α. Results After miR‐186 transfection, the cell lines showed reduced proliferation and increased apoptosis. After overexpression of miR‐186, we found that the HIF‐1α expression level was reduced in MRC‐5 cells. We found that miR‐186 can affect apoptosis of inflammatory fibroblasts through the regulation of HIF‐1α and affect the downstream signaling pathways. Conclusions These data suggested that miR‐186 contributes to the pathogenesis of COPD and that miRNA‐186 may also affect the HIF‐1α‐dependent lung structure maintenance program.
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Affiliation(s)
- Li Lin
- Department of Geriatrics, the Second Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Juan Sun
- Department of General Pracitce, Hainan General Hospital, Haikou, China
| | - Duoyi Wu
- Department of General Pracitce, Hainan General Hospital, Haikou, China
| | - Daobo Lin
- Department of General Pracitce, Hainan General Hospital, Haikou, China
| | - Dingwei Sun
- Department of General Pracitce, Hainan General Hospital, Haikou, China
| | - Quanni Li
- Department of General Pracitce, Hainan General Hospital, Haikou, China
| | - Jiannan Chen
- Department of General Pracitce, Hainan General Hospital, Haikou, China
| | - Huan Niu
- Department of General Pracitce, Hainan General Hospital, Haikou, China
| | - Ping He
- Department of General Pracitce, Hainan General Hospital, Haikou, China
| | - Yipeng Ding
- Department of General Pracitce, Hainan General Hospital, Haikou, China
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36
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Sun WJ, Zhang YN, Xue P. miR-186 inhibits proliferation, migration, and epithelial-mesenchymal transition in breast cancer cells by targeting Twist1. J Cell Biochem 2018; 120:10001-10009. [PMID: 30552711 DOI: 10.1002/jcb.28283] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [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: 09/08/2018] [Accepted: 10/24/2018] [Indexed: 12/31/2022]
Abstract
OBJECTIVE Breast cancer (BC) is the most prevalent malignancy in women worldwide. Our study aimed to investigate the expression and biological effect of miR-186 in BC. METHODS Expression of miR-186 was determined by quantitative reverse transcription PCR. Kaplan-Meier curves were calculated for the survival data analysis. Functional assays were performed by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide and wound healing assay. Protein expression was analyzed by Western blot. RESULTS miR-186 was downregulated in BC tissues and cells. Downregulation of miR-186 was associated with tumor metastasis and a poor overall survival in patients with BC. Overexpression of miR-186 inhibited BC cells proliferation, migration, and epithelial-mesenchymal transition process; while suppression of miR-186 exhibited an opposite effects on BC cells. In addition, Twist1 was identified as a direct target of miR-186 in BC and restoration of Twist1 attenuated the biological effect of miR-186 on BC cells. CONCLUSION Our findings suggest that miR-186 functions as a tumor suppressor by targeting Twist1 in BC. miR-186 may serve as a novel biomarker in BC diagnosis or a new therapeutic target in BC treatment.
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Affiliation(s)
- Wen-Juan Sun
- Department of General Surgery, Qingdao West Coast New Area Central Hospital, Qingdao, Shandong, China
| | - Ya-Na Zhang
- Department of Anesthesiology, Qingdao West Coast New Area Central Hospital, Qingdao, Shandong, China
| | - Peng Xue
- Department of Anesthesiology, Qingdao West Coast New Area Central Hospital, Qingdao, Shandong, China
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37
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Huang T, Wang G, Yang L, Peng B, Wen Y, Ding G, Wang Z. MiR-186 inhibits proliferation, migration, and invasion of non-small cell lung cancer cells by downregulating Yin Yang 1. Cancer Biomark 2018; 21:221-228. [PMID: 29060934 DOI: 10.3233/cbm-170670] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
BACKGROUND Non-small cell lung cancer (NSCLC) is the main type of lung cancer. While miR-186 is significantly reduced in lung cancer tissues and cells, its role in NSCLC has not been completely elucidated. MATERIAL AND METHODS We used qRT-PCR and western blot methods to investigate the levels of miR-186 and YY1 in 21 pairs of NSCLC tissues. Dual luciferase reporter gene assays were performed to detect whether miR-186 directly targets YY1. Next, the roles of miR-186 and its target gene (YY1) in determining the proliferation, apoptosis and migration capabilities of selected cell lines (A549 and HCC827) were investigated by using miR-186 mimics or YY1 siRNA. RESULTS Our results showed that miR-186 was downregulated and YYI was upregulated in NSCLC tissue, and miR-186 expression was negatively associated with YY1. Similarly, miR-186 was also downregulated and YY1 expression also was upregulated in both A549 and HCC827 cells; furthermore, miR-186 was found to directly target YY1. Cell proliferation, invasion, and migration, as well as apoptosis induction were more strongly inhibited by YY1 siRNA than by miR-186. CONCLUSION Our results suggest that miR-186 and its target gene (YY1) could possibly serve as new prognostic biomarkers and therapeutic targets for treating NSCLC in humans.
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38
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Wang L, Xu C, Wang C, Gong W, Zhang K, Chen Q, Zhou S, Qi T. Circ-PAX2 promotes proliferation and metastasis by absorbing miR-186 in lung cancer cells. Int J Clin Exp Pathol 2018; 11:3793-3801. [PMID: 31949766 PMCID: PMC6962841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Accepted: 05/27/2018] [Indexed: 06/10/2023]
Abstract
Circ-RNAs are a type of non-coding-protein RNAs which act as an effector role in many physiological processes. However, the novel function of circ-PAX2 in lung carcinomas is still unidentified. The current study is to detect the expression of circ-PAX2 in lung squamous cell carcinoma (LSCC) tissues and the physiological functions of circ-PAX2. Circ-PAX2 was distinguished in LSCC samples and matched non-tumor samples by human circRNA microarray analysis and was validated to be up-regulated in 86 specimens of LSCC tissues and lung cancer cell lines by qRT-PCR. Functional validation experiments showed that knockdown of circ-PAX2 promoted apoptosis of lung carcinoma cells, and then suppressed proliferation and migration of tumor cells. Small interfering RNA (siRNA) to circ-PAX2 inhibited growth in lung tumor cells. Bioinformatics prediction and rescue experiments showed that circ-PAX2 was a target of microRNA-186, confirmed by qRT-PCR and double luciferase reporter assay. On the whole, our findings reveal that circ-PAX2 was up-regulated and may be an oncogene in lung cancer; its function was reducing apoptosis, promoting cell proliferation and migration in lung carcinoma cells, which might be a novel therapeutic targetgene in lung cancer.
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Affiliation(s)
- Lei Wang
- Department of Pathology, The Affiliated Hospital of Yangzhou University, Yangzhou UniversityYangzhou, China
| | - Cong Xu
- Department of Pathology, The Medical College of Yangzhou University, Yangzhou UniversityYangzhou, China
| | - Chenghai Wang
- Department of Pathology, The Affiliated Hospital of Yangzhou University, Yangzhou UniversityYangzhou, China
- Department of Pathology, The Medical College of Yangzhou University, Yangzhou UniversityYangzhou, China
| | - Weijuan Gong
- Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Disease, Medical College, Yangzhou UniversityYangzhou, China
| | - Kefan Zhang
- Department of Pathology, The Medical College of Yangzhou University, Yangzhou UniversityYangzhou, China
| | - Qiuyue Chen
- Department of Pathology, The Medical College of Yangzhou University, Yangzhou UniversityYangzhou, China
| | - Shishi Zhou
- Department of Pathology, The Medical College of Yangzhou University, Yangzhou UniversityYangzhou, China
| | - Tingyue Qi
- Department of Radiology, The Affiliated Hospital of Yangzhou University, Yangzhou UniversityYangzhou, China
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39
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Su CM, Tang CH, Chi MJ, Lin CY, Fong YC, Liu YC, Chen WC, Wang SW. Resistin facilitates VEGF-C-associated lymphangiogenesis by inhibiting miR-186 in human chondrosarcoma cells. Biochem Pharmacol 2018; 154:234-242. [PMID: 29730230 DOI: 10.1016/j.bcp.2018.05.001] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [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: 03/04/2018] [Accepted: 05/02/2018] [Indexed: 12/16/2022]
Abstract
Chondrosarcoma is a common primary malignant tumor of the bone that can metastasize through the vascular system to other organs. A key step in the metastatic process, lymphangiogenesis, involves vascular endothelial growth factor-C (VEGF-C). However, the effects of lymphangiogenesis in chondrosarcoma metastasis remain to be clarified. Accumulating evidence shows that resistin, a cytokine secreted from adipocytes and monocytes, also promotes tumor pathogenesis. Notably, chondrosarcoma can easily metastasize. In this study, we demonstrate that resistin enhances VEGF-C expression and lymphatic endothelial cells (LECs)-associated lymphangiogenesis in human chondrosarcoma cells. We also show that resistin triggers VEGF-C-dependent lymphangiogenesis via the c-Src signaling pathway and down-regulating micro RNA (miR)-186. Overexpression of resistin in chondrosarcoma cells significantly enhanced VEGF-C production and LECs-associated lymphangiogenesis in vitro and tumor-related lymphangiogenesis in vivo. Resistin levels were positively correlated with VEGF-C-dependent lymphangiogenesis via the down-regulation of miR-186 expression in clinical samples from chondrosarcoma tissue. This study is the first to evaluate the mechanism underlying resistin-induced promotion of LECs-associated lymphangiogenesis via the upregulation of VEGF-C expression in human chondrosarcomas. We suggest that resistin may represent a molecular target in VEGF-C-associated tumor lymphangiogenesis in chondrosarcoma metastasis.
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Affiliation(s)
- Chen-Ming Su
- Department of Biomedical Sciences Laboratory, Affiliated Dongyang Hospital of Wenzhou Medical University, Dongyang, Zhejiang, China
| | - Chih-Hsin Tang
- Chinese Medicine Research Center, China Medical University, Taichung, Taiwan; Department of Pharmacology, School of Medicine, China Medical University, Taichung, Taiwan; Department of Biotechnology, College of Health Science, Asia University, Taichung, Taiwan
| | - Meng-Ju Chi
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
| | - Chih-Yang Lin
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan; Department of Medicine, Mackay Medical College, New Taipei City, Taiwan
| | - Yi-Chin Fong
- Department of Orthopaedic Surgery, China Medical University Beigang Hospital, Yun-Lin County, Taiwan; Department of Sports Medicine, College of Health Care, China Medical University, Taichung, Taiwan
| | - Yueh-Ching Liu
- Department of Orthopaedics, MacKay Memorial Hospital, Taipei, Taiwan
| | - Wei-Cheng Chen
- Department of Orthopaedics, MacKay Memorial Hospital, Taipei, Taiwan
| | - Shih-Wei Wang
- Department of Medicine, Mackay Medical College, New Taipei City, Taiwan; Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan.
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40
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Jones DZ, Schmidt ML, Suman S, Hobbing KR, Barve SS, Gobejishvili L, Brock G, Klinge CM, Rai SN, Park J, Clark GJ, Agarwal R, Kidd LR. Micro-RNA-186-5p inhibition attenuates proliferation, anchorage independent growth and invasion in metastatic prostate cancer cells. BMC Cancer 2018; 18:421. [PMID: 29653561 PMCID: PMC5899400 DOI: 10.1186/s12885-018-4258-0] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Accepted: 03/20/2018] [Indexed: 12/17/2022] Open
Abstract
Background Dysregulation of microRNA (miRNA) expression is associated with hallmarks of aggressive tumor phenotypes, e.g., enhanced cell growth, proliferation, invasion, and anchorage independent growth in prostate cancer (PCa). Methods Serum-based miRNA profiling involved 15 men diagnosed with non-metastatic (stage I, III) and metastatic (stage IV) PCa and five age-matched disease-free men using miRNA arrays with select targets confirmed by quantitative real-time PCR (qRT-PCR). The effect of miR-186-5p inhibition or ectopic expression on cellular behavior of PCa cells (i.e., PC-3, MDA-PCa-2b, and LNCaP) involved the use bromodeoxyuridine (BrdU) incorporation, invasion, and colony formation assays. Assessment of the impact of miR-186-5p inhibition or overexpression on selected targets entailed microarray analysis, qRT-PCR, and/or western blots. Statistical evaluation used the modified t-test and ANOVA analysis. Results MiR-186-5p was upregulated in serum from PCa patients and metastatic PCa cell lines (i.e., PC-3, MDA-PCa-2b, LNCaP) compared to serum from disease-free individuals or a normal prostate epithelial cell line (RWPE1), respectively. Inhibition of miR-186-5p reduced cell proliferation, invasion, and anchorage-independent growth of PC-3 and/or MDA-PCa-2b PCa cells. AKAP12, a tumor suppressor target of miR-186-5p, was upregulated in PC-3 and MDA-PCa-2b cells transfected with a miR-186-5p inhibitor. Conversely, ectopic miR-186-5p expression in HEK 293 T cells decreased AKAP12 expression by 30%. Both pAKT and β-catenin levels were down-regulated in miR-186-5p inhibited PCa cells. Conclusions Our findings suggest miR-186-5p plays an oncogenic role in PCa. Inhibition of miR-186-5p reduced PCa cell proliferation and invasion as well as increased AKAP12 expression. Future studies should explore whether miR-186-5p may serve as a candidate prognostic indicator and a therapeutic target for the treatment of aggressive prostate cancer. Electronic supplementary material The online version of this article (10.1186/s12885-018-4258-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Dominique Z Jones
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY, 40292, USA.,James Graham Brown Cancer Center, University of Louisville School of Medicine, Louisville, USA.,Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado, Denver, USA
| | - M Lee Schmidt
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY, 40292, USA.,James Graham Brown Cancer Center, University of Louisville School of Medicine, Louisville, USA
| | - Suman Suman
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY, 40292, USA.,James Graham Brown Cancer Center, University of Louisville School of Medicine, Louisville, USA
| | - Katharine R Hobbing
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY, 40292, USA.,James Graham Brown Cancer Center, University of Louisville School of Medicine, Louisville, USA
| | - Shirish S Barve
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY, 40292, USA.,Division of Gastroenterology and Hepatology, University of Louisville School of Medicine, Louisville, USA
| | - Leila Gobejishvili
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY, 40292, USA.,Division of Gastroenterology and Hepatology, University of Louisville School of Medicine, Louisville, USA
| | - Guy Brock
- Department of Biomedical Informatics, The Ohio State University, Columbus, USA
| | - Carolyn M Klinge
- James Graham Brown Cancer Center, University of Louisville School of Medicine, Louisville, USA.,Department of Biochemistry and Molecular Genetics, University of Louisville School of Medicine, Louisville, USA
| | - Shesh N Rai
- James Graham Brown Cancer Center, University of Louisville School of Medicine, Louisville, USA.,Department of Bioinformatics and Biostatistics, University of Louisville School of Public Health and Information Science, Louisville, USA
| | - Jong Park
- Department of Cancer Epidemiology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, USA
| | - Geoffrey J Clark
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY, 40292, USA.,James Graham Brown Cancer Center, University of Louisville School of Medicine, Louisville, USA
| | - Rajesh Agarwal
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado, Denver, USA
| | - LaCreis R Kidd
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY, 40292, USA. .,James Graham Brown Cancer Center, University of Louisville School of Medicine, Louisville, USA.
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Terzuoli E, Donnini S, Finetti F, Nesi G, Villari D, Hanaka H, Radmark O, Giachetti A, Ziche M. Linking microsomal prostaglandin E Synthase-1/PGE-2 pathway with miR-15a and -186 expression: Novel mechanism of VEGF modulation in prostate cancer. Oncotarget 2018; 7:44350-44364. [PMID: 27322147 PMCID: PMC5190102 DOI: 10.18632/oncotarget.10051] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Accepted: 06/01/2016] [Indexed: 12/29/2022] Open
Abstract
Prostaglandin E-2 (PGE-2) promotes tumor angiogenesis via paracrine secretion of pro-angiogenic growth factors, such as vascular endothelial growth factor (VEGF). Since miRNAs regulate several cell processes, including angiogenesis, we sought to determine whether they would influence PGE-2-induced VEGF. We compared DU145 and PC3 prostate cancer cells bearing the mPGES-1 enzyme (mPGES-1+/+) and producing PGE-2, with those in which the enzyme was silenced or deleted (mPGES-1-/-). We demonstrated that mPGES-1/PGE-2 signaling decreased Dicer expression and miRNA biogenesis. Genome-wide sequencing of miRNAs revealed that miR-15a and miR-186, associated with expression of VEGF and hypoxia inducible factor-1α (HIF-1α), were down-regulated in mPGES-1+/+ cells. As a consequence, mPGES-1+/+ tumor cells expressed high levels of VEGF and HIF-1α, induced endothelial cells activation and formed highly vascularized tumors. Mir-186 mimic inhibited VEGF expression in mPGES-1+/+ tumor xenografts and reduced tumor growth. In human prostate cancer specimens, mPGES-1 was over-expressed in tumors with high Gleason score, elevated expression of VEGF and HIF-1α, high microvessel density and decreased expression of Dicer, miR15a and miR-186. Thus, clear evidence for regulating miRNA processing and VEGF output by intrinsic PGE-2 production provides a means to distinguish between aggressive and indolent prostate tumors and suggests a potential target for controlling tumor progression.
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Affiliation(s)
- Erika Terzuoli
- Department of Life Sciences, University of Siena, 53100, Siena, Italy
| | - Sandra Donnini
- Department of Life Sciences, University of Siena, 53100, Siena, Italy.,Istituto Toscano Tumori (ITT), 50136, Florence, Italy
| | - Federica Finetti
- Department of Life Sciences, University of Siena, 53100, Siena, Italy
| | - Gabriella Nesi
- Department of Surgery and Translational Medicine, University of Florence, 50136, Florence, Italy
| | - Donata Villari
- Department of Clinical and Experimental Medicine, University of Florence, 50136, Florence, Italy
| | - Hiromi Hanaka
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, S-171 77, Stockholm, Sweden
| | - Olof Radmark
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, S-171 77, Stockholm, Sweden
| | - Antonio Giachetti
- Department of Life Sciences, University of Siena, 53100, Siena, Italy
| | - Marina Ziche
- Department of Life Sciences, University of Siena, 53100, Siena, Italy.,Istituto Toscano Tumori (ITT), 50136, Florence, Italy
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42
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Cao C, Sun D, Zhang L, Song L. miR-186 affects the proliferation, invasion and migration of human gastric cancer by inhibition of Twist1. Oncotarget 2018; 7:79956-79963. [PMID: 27835599 PMCID: PMC5346763 DOI: 10.18632/oncotarget.13182] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Accepted: 10/17/2016] [Indexed: 01/06/2023] Open
Abstract
Recent evidence shows that miRNAs are dysregulated in a variety of cancers including gastric cancer (GC), and emerging as key oncogenes or tumor suppressors. In this study, qRT-PCR was used to analyze the expression of miR-186 in GC tissues and adjacent non-cancerous tissues, and then more in-vitro experiments were used to investigate the role of miR-186 in GC cells. Here, we identified miR-186 was generally down-regulated in GC tissues; however, Twist1 was generally up-regulated in GC tissues. Moreover, miR-186 and Twist1 were associated with larger tumor size and advanced clinical stage of GC. In-vitro experiments demonstrated that ectopic overexpression of miR-186 inhibited GC cell proliferation, invasion and migration; however, inhibited expression of miR-186 enhanced cell proliferation, invasion and migration. Furthermore, the luciferase reporter assay demonstrated Twist1 as a direct target of miR-186. Finally, over-expression of Twist1 abrogated inhibitory impact of miR-186 on cell proliferation, invasion and migration. In conclusion, miR-186 affects the proliferation, invasion and migration of human gastric cancer by inhibition of Twist1, and could be a tumor suppressor in GC development. Thus, miR-186 may be served as a candidate prognostic biomarker and target for new therapies in human gastric cancer.
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Affiliation(s)
- Chunhong Cao
- Department of General Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian, 116027 Liaoning, China
| | - Deguang Sun
- Department of General Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian, 116027 Liaoning, China
| | - Liang Zhang
- Department of General Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian, 116027 Liaoning, China
| | - Lei Song
- Department of General Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian, 116027 Liaoning, China
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Abstract
AIMS MicroRNA-186 (miR-186) has been shown to be involved in various types of cancer. The purpose of this study was to investigate the expression level and functional role of miR-186 in human cutaneous malignant melanoma cells. SUBJECTS AND METHODS Expression of miR-186 was analyzed in human cutaneous malignant melanoma (CMM) cell lines SK-MEL-1, G-361, A375 and A875, and human normal epidermal melanocytes cell line HEMn-LP by quantitative reverse transcription polymerase chain reaction (qRT-PCR). Additionally, the functional role of miR-186 on melanoma cells was investigated by transfection of miR-186 mimic followed by analyses of cell proliferation, apoptosis, and metastasis. RESULTS We found that the expression levels of miR-186 were decreased in CMM cell lines compared with normal epidermal melanocytes cell line. Moreover, overexpression of miR-186 inhibited cells proliferation through abrogating the G1-S transition, and reduced cells migration and invasion. CONCLUSIONS Our findings suggested that miR-186 exhibit an inhibitory effect on CMM cell proliferation, migration, and invasion; thus, may serve as a potential therapeutic target for human CMM intervention.
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Affiliation(s)
- Bei-Bei Su
- Department of Dermatology, Xinxiang Central Hospital, Xinxiang, Henan, China
| | - Shu-Wei Zhou
- Department of Head and Neck, and Breast Surgery, Xinxiang Central Hospital, Xinxiang, Henan, China
| | - Cai-Bin Gan
- Department of Dermatology, Xinxiang Central Hospital, Xinxiang, Henan, China
| | - Xiao-Ning Zhang
- Department of Dermatology, Xinxiang Central Hospital, Xinxiang, Henan, China
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44
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Li C, Gao Y, Li Y, Ding D. TUG1 mediates methotrexate resistance in colorectal cancer via miR-186/CPEB2 axis. Biochem Biophys Res Commun 2017; 491:552-557. [PMID: 28302487 DOI: 10.1016/j.bbrc.2017.03.042] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Accepted: 03/12/2017] [Indexed: 12/31/2022]
Abstract
Colorectal cancer (CRC) is a common malignancy, most of which remain unresponsive to chemotherapy. Methotrexate (MTX) is one of the earliest cytotoxic drugs and serves as an anti-metabolite and anti-folate chemotherapy for various types of cancer. However, MTX resistance prevents its clinical application in cancer therapy. Thereby, overcoming the drug resistance is an alternative strategy to maximize the efficacy of MTX therapies in clinics. Long non-coding RNAs (lncRNAs) have gained widespread attention in recent years. More and more evidences have shown that lncRNAs play regulatory roles in various biological activities and disease progression including drug resistance in cancer cells. Here, we observed lncRNA TUG1 was associated to the MTX resistant in colorectal cancer cells. Firstly, quantitative analysis indicated that TUG1 was significantly increased in tumors which were resistant to MTX treatment. TUG1 knockdown re-sensitized the MTX resistance in colorectal cancer cells, which were MTX-resistant colorectal cell line. Furthermore, bioinformatics analysis showed that miR-186 could directly bind to TUG1, suggesting TUG1 might worked as a ceRNA to sponge miR-186. Extensively, our study also showed that CPEB2 was the direct target of miR-186 in colorectal cancer cells. Taken together, our study suggests that lncRNA TUG1 mediates MTX resistance in colorectal cancer via miR-186/CPEB2 axis.
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Affiliation(s)
- Changfeng Li
- Department of Endoscopy Center, China-Japan Union Hospital of Jilin University, Changchun, Jilin, 130033, PR China
| | - Yongjian Gao
- Department of Gastrointestinal Surgery, China-Japan Union Hospital of Jilin University, Changchun, Jilin, 130033, PR China
| | - Yongchao Li
- Department of Gastrointestinal Surgery, China-Japan Union Hospital of Jilin University, Changchun, Jilin, 130033, PR China
| | - Dayong Ding
- Department of Gastrointestinal Surgery, China-Japan Union Hospital of Jilin University, Changchun, Jilin, 130033, PR China.
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45
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Gou Y, Zhai F, Zhang L, Cui L. RUNX3 regulates hepatocellular carcinoma cell metastasis via targeting miR-186/E-cadherin/EMT pathway. Oncotarget 2017; 8:61475-61486. [PMID: 28977878 PMCID: PMC5617438 DOI: 10.18632/oncotarget.18424] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Accepted: 05/23/2017] [Indexed: 12/13/2022] Open
Abstract
Runt-related transcription factor 3 (RUNX3) has been reported as a tumor suppressor in some kinds of cancers. In the present study, hepatocellular carcinoma (HCC) microarray analysis showed that RUNX3 expression was significantly lower in HCC tissues compared with that in adjacent non-tumor tissues, and was negatively associated with metastasis and TNM stage. RUNX3 was an independently prognostic factor for 5-year overall and disease-free patient survival. Mechanically, RUNX3 repressed metastasis and invasion of HCC, and increased E-cadherin expression. RUNX3 also repressed microRNA-186 to increase E-cadherin expression. We demonstrated that miR-186 mimics attenuated RUNX3-induced increase of E-cadherin and inhibition of metastasis and invasion. In conclusion, RUNX3 suppressed HCC cell migration and invasion by targeting the miR-186/E-cadherin/EMT pathway. RUNX3 may be recommended as an effective prognostic indicator and therapeutic target for patients with HCC.
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Affiliation(s)
- Yuli Gou
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian 116027, Liaoning, China
| | - Fangbing Zhai
- Department of Radiology, The Second Affiliated Hospital of Dalian Medical University, Dalian 116027, Liaoning, China
| | - Liang Zhang
- Department of Interventional Therapy, The Second Affiliated Hospital of Dalian Medical University, Dalian 116027, Liaoning, China
| | - Lan Cui
- Department of Ophthalmology, The Second Affiliated Hospital of Dalian Medical University, Dalian 116027, Liaoning, China
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46
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Dang RY, Liu FL, Li Y. Circular RNA hsa_circ_0010729 regulates vascular endothelial cell proliferation and apoptosis by targeting the miR-186/HIF-1α axis. Biochem Biophys Res Commun 2017; 490:104-10. [PMID: 28571741 DOI: 10.1016/j.bbrc.2017.05.164] [Citation(s) in RCA: 125] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Accepted: 05/28/2017] [Indexed: 12/21/2022]
Abstract
Circular RNAs (circRNAs) are a group of non-protein-coding RNAs generated from back splicing. Emerging evidence has demonstrated its vital regulation on angiogenesis. However, the underlying mechanism responsible for circRNAs effects on vascular endothelial cells is still unclear. In the present study, we screened the expression profiles and investigated the physiological role of circRNAs in hypoxia-induced human umbilical vein endothelial cells (HUVECs). Using circRNA microarray analysis, we identified 36 circRNAs that were significantly dysregulated including 14 down-regulated circRNAs and 22 up-regulated with 2-fold change (P < 0.05). From the over-expressed circRNAs, hsa_circ_0010729 was selected as candidate circRNA and which was validated to be significantly up-regulated using RT-PCR. In loss-of-function experiments of HUVECs, hsa_circ_0010729 knockdown suppressed the proliferation and migration ability and enhanced apoptosis. Bioinformatic prediction and luciferase assay revealed that hsa_circ_0010729 and hypoxia inducible factor 1 alpha (HIF-1α) were targeted by miR-186. Validation experiments verified that hsa_circ_0010729 was co-expressed with HIF-1α, being negatively correlated with miR-186. Moreover, rescue experiments demonstrated that miR-186 inhibitor could reverse the role of hsa_circ_0010729 knockdown on HUVECs progression. Overall, the present study identifies the crucial regulation of hsa_circ_0010729 on vascular endothelial cell proliferation and apoptosis via targeting miR-186/HIF-1α axis.
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47
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Lu S, Wang MS, Chen PJ, Ren Q, Bai P. miRNA-186 inhibits prostate cancer cell proliferation and tumor growth by targeting YY1 and CDK6. Exp Ther Med 2017; 13:3309-3314. [PMID: 28587405 PMCID: PMC5450643 DOI: 10.3892/etm.2017.4387] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Accepted: 02/24/2017] [Indexed: 01/08/2023] Open
Abstract
microRNAs (miRNAs) are known to be important in tumor initiation and progression. Recent studies have demonstrated that miR-186 is critical in several types of cancer, including human non-small cell lung cancer, bladder cancer and pancreatic ductal adenocarcinoma. However, the functions of miR-186 in prostate cancer (PCa) are still unclear. In the present study, downregulation of miR-186 in PCa cells was detected when compared with the normal prostate cell line. When miR-186 overexpressed in PCa cells, cell proliferation in vitro was evidently inhibited as shown using cell counting kit-8 assays and cell-cycle analysis, and tumor growth in vivo was decreased as shown by tumor growth assays in nude mice. Furthermore, through bioinformatics prediction and biochemical analyses, Yin Yang 1 (YY1) and cyclin-dependent kinase 6 (CDK6) have been proven to act as direct targets of miR-186. These results indicate that miR-186 is a negative regulator in PCa by inhibiting PCa cell proliferation via targeting YY1 and CDK6.
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Affiliation(s)
- Shu Lu
- Department of Urology, Zhongshan Hospital Affiliated to Xiamen University, Xiamen, Fujian 361004, P.R. China
| | - Ming-Shan Wang
- Department of Urology, Zhongshan Hospital Affiliated to Xiamen University, Xiamen, Fujian 361004, P.R. China
| | - Pei-Jie Chen
- Department of Urology, Zhongshan Hospital Affiliated to Xiamen University, Xiamen, Fujian 361004, P.R. China
| | - Qiang Ren
- Department of Urology, Zhongshan Hospital Affiliated to Xiamen University, Xiamen, Fujian 361004, P.R. China
| | - Peiming Bai
- Department of Urology, Zhongshan Hospital Affiliated to Xiamen University, Xiamen, Fujian 361004, P.R. China
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48
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Ma Y, Wang P, Xue Y, Qu C, Zheng J, Liu X, Ma J, Liu Y. PVT1 affects growth of glioma microvascular endothelial cells by negatively regulating miR-186. Tumour Biol 2017; 39:1010428317694326. [PMID: 28351322 DOI: 10.1177/1010428317694326] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Vigorous angiogenesis is one of the reasons for the poor prognosis of glioma. A number of studies have shown that long non-coding RNA can affect a variety of biological behaviors of tumors. However, the influence of long non-coding RNAs on glioma vascular endothelial cells remains unclear. To simulate the glioma microenvironment, we applied glioma-conditioned medium to human cerebral microvascular endothelial cells. The long non-coding RNA PVT1 was found to be highly expressed in glioma vascular endothelial cells. Cell Counting Kit-8, migration, and tube formation assays showed that PVT1 overexpression promoted glioma vascular endothelial cells proliferation, migration, and angiogenesis. We also found that PVT1 overexpression upregulated the expression of the autophagy-related proteins Atg7 and Beclin1, which induced protective autophagy. Bioinformatics software and dual-luciferase system analysis confirmed that PVT1 acts by targeting miR-186. In addition, our study showed that miR-186 could target the 3' untranslated region of Atg7 and Beclin1 to decrease their expression levels, thereby inhibiting glioma-conditioned human cerebral microvascular endothelial cell autophagy. In conclusion, PVT1 overexpression increased the expression of Atg7 and Beclin1 by targeting miR-186, which induced protective autophagy, thus promoting glioma vascular endothelial cell proliferation, migration, and angiogenesis. Therefore, PVT1 and miR-186 can provide new therapeutic targets for future anti-angiogenic treatment of glioma.
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Affiliation(s)
- Yawen Ma
- 1 Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
- 2 Liaoning Research Center for Translational Medicine in Nervous System Disease, Shenyang, People's Republic of China
| | - Ping Wang
- 3 Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang, People's Republic of China
- 4 Institute of Pathology and Pathophysiology, China Medical University, Shenyang, People's Republic of China
| | - Yixue Xue
- 3 Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang, People's Republic of China
- 4 Institute of Pathology and Pathophysiology, China Medical University, Shenyang, People's Republic of China
| | - Chengbin Qu
- 1 Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
- 2 Liaoning Research Center for Translational Medicine in Nervous System Disease, Shenyang, People's Republic of China
| | - Jian Zheng
- 1 Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
- 2 Liaoning Research Center for Translational Medicine in Nervous System Disease, Shenyang, People's Republic of China
| | - Xiaobai Liu
- 1 Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
- 2 Liaoning Research Center for Translational Medicine in Nervous System Disease, Shenyang, People's Republic of China
| | - Jun Ma
- 3 Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang, People's Republic of China
- 4 Institute of Pathology and Pathophysiology, China Medical University, Shenyang, People's Republic of China
| | - Yunhui Liu
- 1 Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
- 2 Liaoning Research Center for Translational Medicine in Nervous System Disease, Shenyang, People's Republic of China
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Huang T, Liu HW, Chen JQ, Wang SH, Hao LQ, Liu M, Wang B. The long noncoding RNA PVT1 functions as a competing endogenous RNA by sponging miR-186 in gastric cancer. Biomed Pharmacother. 2017;88:302-308. [PMID: 28122299 DOI: 10.1016/j.biopha.2017.01.049] [Citation(s) in RCA: 85] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Revised: 01/07/2017] [Accepted: 01/09/2017] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Recent evidence has highlighted the key regulatory roles of long non-coding RNAs (lncRNAs) in tumor development and progression including gastric cancer (GC).The long non-coding RNA (lncRNA) plasmacytoma variant translocation 1 (PVT1) has been identified as an oncogene in some tumors. However, the potential biological roles and regulatory mechanisms of PVT1 involved in GC remained poorly understood. METHODS Quantitative real-time PCR (QRT-PCR) was used to determine the expression of PVT1 and miR-186 in GC tissues. The MTT cell proliferation and transwell invasion assays were used to detect the cell proliferation and invasion abilities. Western-blotting analysis was used to detect the protein expression of PCNA and HIF-1α. To understand the tumorigenic mechanism of PVT1, luciferase reporter assays were performed to evaluate whether the miR-186 was a target of PVT1 in GC cells. RESULTS In the current study, we showed that PVT1 expression was markedly upregulated in GC tissues and cell lines, and high expression levels of PVT1 were obviously correlated with advanced tumor stage and lymph node metastasis. Further functional experiments indicated up-regulation of PVT1 promoted the GC cell proliferation and invasion, while down-regulation of PVT1 inhibited cell proliferation and invasion. In addition, PVT1 could directly interact with miR-186 in GC cells and this interaction lead to the inhibition of downstream of HIF-1α expression. CONCLUSIONS These results suggested that PVT1 acted as a key role in GC pathogenesis and may serve as a potential therapeutic target for GC.
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50
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Liu C, Wang J, Hu Y, Xie H, Liu M, Tang H. Upregulation of kazrin F by miR-186 suppresses apoptosis but promotes epithelial-mesenchymal transition to contribute to malignancy in human cervical cancer cells. Chin J Cancer Res 2017; 29:45-56. [PMID: 28373753 PMCID: PMC5348475 DOI: 10.21147/j.issn.1000-9604.2017.01.06] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Objective Previous studies have identified that kazrin is a constituent of desmosome and influences intercellular adhesion, growing development and morphology. We previously cloned another new isoform, kazrin F and found that it has anti-apoptotic effects on human glioma cell line. To further explore whether kazrin F is involved in tumorigenesis, we investigated its expression and role in cervical cancer (CC) cells. Methods The role of kazrin F and miR-186 in CC was determined by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay, colony formation, transwell, and apoptosis assays. Using enhanced green fluorescent protein (EGFP) reporter assays, reverse transcription-quantitative polymerase chain reaction (RT-qPCR) and western blot analysis, we identified kazrin F post-transcriptional regulation by miR-186. Results We demonstrate that kazrin F is highly expressed in CC tissues compared with the adjacent noncancerous tissues and promotes cell proliferation, colony formation, migration and invasion in HeLa and C33A cells by suppressing apoptosis and facilitating epithelial-to-mesenchymal transition (EMT). Furthermore, miR-186 was confirmed as a regulator of kazrin F dysregulation. An EGFP reporter assay proved that miR-186 directly targets the 3’-untranslated region (3’UTR) of kazrin F and downregulates its expression, and miR-186 expression showed an inverse correlation with kazrin F levels in CC tissues. In addition, overexpression of miR-186 suppressed the malignant behaviors of CC cells. The ectopic expression of kazrin F rescued the inhibitory effects of miR-186. Conclusions Our findings indicate that the upregulation of kazrin F due to downregulated miR-186 levels contributes to malignancy, and highlight the significance of kazrin F in CC tumorigenesis.
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Affiliation(s)
- Chang Liu
- Tianjin Life Science Research Center and Department of Pathogen, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China
| | - Jinghua Wang
- Tianjin Life Science Research Center and Department of Pathogen, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China
| | - Yang Hu
- Tianjin Life Science Research Center and Department of Pathogen, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China
| | - Hong Xie
- Tianjin Life Science Research Center and Department of Pathogen, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China
| | - Min Liu
- Tianjin Life Science Research Center and Department of Pathogen, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China
| | - Hua Tang
- Tianjin Life Science Research Center and Department of Pathogen, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China
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