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Lv X, Yang L, Xie Y, Momeni MR. Non-coding RNAs and exosomal non-coding RNAs in lung cancer: insights into their functions. Front Cell Dev Biol 2024; 12:1397788. [PMID: 38859962 PMCID: PMC11163066 DOI: 10.3389/fcell.2024.1397788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Accepted: 05/02/2024] [Indexed: 06/12/2024] Open
Abstract
Lung cancer is the second most common form of cancer worldwide Research points to the pivotal role of non-coding RNAs (ncRNAs) in controlling and managing the pathology by controlling essential pathways. ncRNAs have all been identified as being either up- or downregulated among individuals suffering from lung cancer thus hinting that they may play a role in either promoting or suppressing the spread of the disease. Several ncRNAs could be effective non-invasive biomarkers to diagnose or even serve as effective treatment options for those with lung cancer, and several molecules have emerged as potential targets of interest. Given that ncRNAs are contained in exosomes and are implicated in the development and progression of the malady. Herein, we have summarized the role of ncRNAs in lung cancer. Moreover, we highlight the role of exosomal ncRNAs in lung cancer.
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Affiliation(s)
- Xiaolong Lv
- Department of Cardiothoracic Surgery, The People’s Hospital of Changshou, Chongqing, China
| | - Lei Yang
- Department of Cardiothoracic Surgery, The People’s Hospital of Tongliang District, Chongqing, China
| | - Yunbo Xie
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
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Tong Q, Wu Z. Curcumin inhibits colon cancer malignant progression and promotes T cell killing by regulating miR-206 expression. Clin Anat 2024; 37:2-11. [PMID: 37191314 DOI: 10.1002/ca.24057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 03/10/2023] [Accepted: 04/25/2023] [Indexed: 05/17/2023]
Abstract
Colon cancer is a great threat to human health. Curcumin, as a traditional Chinese medicine extract with anti-tumor and anti-inflammatory effects, can affect the development of diverse human diseases including cancer. The aim of this research was to probe the mechanism by which curcumin regulates colon cancer progression. Colon cancer cells were processed with graded concentrations of curcumin. The proliferation and apoptosis of the treated cells were determined by MTT, colony formation assay and flow cytometry. Expression of signaling pathway-related proteins and programmed death-ligand 1 (PD-L1) was measured by western blotting. The effect of curcumin on tumor cell growth was verified through T cell-mediated killing and ELISA assays. The relationship between target gene expression and the survival rate of colon cancer patients was analyzed by a survival curve. Curcumin treatment restrained proliferation and accelerated apoptosis of colon cancer cells. It elevated miR-206 expression, which in turn affected colon cancer cell function. miR-206 enhanced colon cancer cell apoptosis and inhibited PD-L1 expression; thus, curcumin enhanced the killing effect of T cells on tumor cells by suppressing PD-L1 through inhibiting the JAK/STAT3 pathway. Patients with high expression of miR-206 had better survival rates than those with low expression. Curcumin can regulate miR-206 expression and inhibit the malignant behavior of colon cancer cells and enhance T cell killing through the JAK/STAT3 pathway.
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Affiliation(s)
- Qin Tong
- Department of Gastrointestinal Surgery, Jinhua Guangfu Hospital, Jinhua City, China
| | - Zhangqiang Wu
- Department of Gastrointestinal Surgery, Jinhua Guangfu Hospital, Jinhua City, China
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3
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Zeng Z, Tang S, Chen L, Hou H, Liu Y, Li J. LncRNA HAGLROS contribute to papillary thyroid cancer progression by modulating miR-206/HMGA2 expression. Aging (Albany NY) 2023; 15:14930-14944. [PMID: 38112616 PMCID: PMC10781464 DOI: 10.18632/aging.205321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Accepted: 11/06/2023] [Indexed: 12/21/2023]
Abstract
OBJECTIVE Papillary thyroid cancer (PTC) is one of the most serious diseases of the endocrine system. In view of the limited therapeutic effects of current medical methods, this study starts from the molecular level and looks for potential treatments. The interaction between HAGLROS/miR-206/HMGA2 was studied using multi-omics methods, which provided new ideas and methods for future treatments. METHOD Microarray analysis and R language were used for differential analysis to screening experimental targets of lncRNA, miRNA, and mRNA. qRT-PCR was used to detect RNA expression in tissues and cells. Double luciferase reporter assays analyzed and validated binding relationships between different RNAs. Colony formation, flow cytometry, and transwell assays were used to measure the effect of them on cell proliferation, apoptosis, and migration. RESULT Microarray analysis identified lncRNAs, miRNAs, and mRNAs differentially expressed in PTC and normal cells, and selected lncRNA HAGLROS, miR-206, and mRNA HMGA2 as study subjects. LncRNA HAGLROS and mRNA HMGA2 were highly expressed in PTC cells while miR-206 was lowly expressed in PTC cells. LncRNA HAGLROS/HMGA2 can inhibit apoptosis of PTC cells, promote proliferation and migration, and miR-206 promotes the above process. HAGLROS and HMGA2 were negatively correlated with miR-206. shHAGLROS promoted miR-206 expression, inhibited HMGA2 expression and repressed PTC tumor growth in mice. CONCLUSIONS HAGLROS promotes the growth of PTC by competitively binding to miR-206 to promote HMGA2 expression.
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Affiliation(s)
- Zhaohui Zeng
- Department of Nuclear Medicine, Hunan Provincial People’s Hospital (The First Affiliated Hospital of Hunan Normal University), Changsha 410001, Hunan, China
| | - Shengtao Tang
- Chenzhou First People’s Hospital, Beihu, Chenzhou 423000, Hunan, China
| | - Liping Chen
- Department of Nuclear Medicine, Hunan Provincial People’s Hospital (The First Affiliated Hospital of Hunan Normal University), Changsha 410001, Hunan, China
| | - Haiwen Hou
- Chenzhou First People’s Hospital, Beihu, Chenzhou 423000, Hunan, China
| | - Yuan Liu
- Chenzhou First People’s Hospital, Beihu, Chenzhou 423000, Hunan, China
| | - Juhui Li
- Chenzhou First People’s Hospital, Beihu, Chenzhou 423000, Hunan, China
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Córdoba-Lanús E, Domínguez de-Barros A, Oliva A, Mayato D, Gonzalvo F, Remírez-Sanz A, Zulueta JJ, Celli B, Casanova C. Circulating miR-206 and miR-1246 as Markers in the Early Diagnosis of Lung Cancer in Patients with Chronic Obstructive Pulmonary Disease. Int J Mol Sci 2023; 24:12437. [PMID: 37569812 PMCID: PMC10418760 DOI: 10.3390/ijms241512437] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 07/24/2023] [Accepted: 07/28/2023] [Indexed: 08/13/2023] Open
Abstract
Lung cancer (LC) is the most common cause of cancer death, with 75% of cases being diagnosed in late stages. This study aimed to determine potential miRNAs as biomarkers for the early detection of LC in chronic obstructive pulmonary disease (COPD) cases. Ninety-nine patients were included, with registered clinical and lung function parameters followed for 6 years. miRNAs were determined in 16 serum samples from COPD patients (four with LC and four controls) by next generation sequencing (NGS) at LC diagnosis and 3 years before. The validation by qPCR was performed in 33 COPD-LC patients and 66 controls at the two time points. Over 170 miRNAs (≥10 TPM) were identified; among these, miR-224-5p, miR-206, miR-194-5p, and miR-1246 were significantly dysregulated (p < 0.001) in COPD-LC 3 years before LC diagnosis when compared to the controls. The validation showed that miR-1246 and miR-206 were differentially expressed in COPD patients who developed LC three years before (p = 0.035 and p = 0.028, respectively). The in silico enrichment analysis showed miR-1246 and miR-206 to be linked to gene mediators in various signaling pathways related to cancer. Our study demonstrated that miR-1246 and miR-206 have potential value as non-invasive biomarkers of early LC detection in COPD patients who could benefit from screening programs.
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Affiliation(s)
- Elizabeth Córdoba-Lanús
- Department of Internal Medicine, Dermatology and Psychiatry, Universidad de La Laguna, 38071 San Cristóbal de La Laguna, Spain;
- Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias, Universidad de La Laguna, 38296 San Cristóbal de La Laguna, Spain; (A.D.d.-B.); (A.O.)
- Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Angélica Domínguez de-Barros
- Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias, Universidad de La Laguna, 38296 San Cristóbal de La Laguna, Spain; (A.D.d.-B.); (A.O.)
| | - Alexis Oliva
- Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias, Universidad de La Laguna, 38296 San Cristóbal de La Laguna, Spain; (A.D.d.-B.); (A.O.)
- Department of Pharmaceutical Technology, Universidad de La Laguna, 38206 Santa Cruz de Tenerife, Spain
| | - Delia Mayato
- Pulmonary Department-Research Unit, Hospital Universitario Nuestra Señora de Candelaria, 38010 Santa Cruz de Tenerife, Spain; (D.M.); (F.G.)
| | - Francisca Gonzalvo
- Pulmonary Department-Research Unit, Hospital Universitario Nuestra Señora de Candelaria, 38010 Santa Cruz de Tenerife, Spain; (D.M.); (F.G.)
| | - Ana Remírez-Sanz
- CIMA, Centro de Investigación Médica Aplicada, Universidad de Navarra, 31008 Pamplona, Spain;
| | - Javier J. Zulueta
- Navarra Institute for Health Research (IdISNA), 31008 Pamplona, Spain;
- Pulmonary, Critical Care and Sleep Medicine Division, Mount Sinai Morningside Hospital, New York, NY 10029, USA
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), 28029 Madrid, Spain
| | - Bartolomé Celli
- Pulmonary Critical Care Medicine Division, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA;
| | - Ciro Casanova
- Department of Internal Medicine, Dermatology and Psychiatry, Universidad de La Laguna, 38071 San Cristóbal de La Laguna, Spain;
- Pulmonary Department-Research Unit, Hospital Universitario Nuestra Señora de Candelaria, 38010 Santa Cruz de Tenerife, Spain; (D.M.); (F.G.)
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, 28029 Madrid, Spain
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Mukherjee AG, Gopalakrishnan AV. The mechanistic insights of the antioxidant Keap1-Nrf2 pathway in oncogenesis: a deadly scenario. Med Oncol 2023; 40:248. [PMID: 37480500 DOI: 10.1007/s12032-023-02124-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 07/06/2023] [Indexed: 07/24/2023]
Abstract
The Nuclear factor erythroid 2-related factor 2 (Nrf2) protein has garnered significant interest due to its crucial function in safeguarding cells and tissues. The Nrf2 protein is crucial in preserving tissue integrity by safeguarding cells against metabolic, xenobiotic and oxidative stress. Due to its various functions, Nrf2 is a potential pharmacological target for reducing the incidence of diseases such as cancer. However, mutations in Keap1-Nrf2 are not consistently favored in all types of cancer. Instead, they seem to interact with specific driver mutations of tumors and their respective tissue origins. The Kelch-like ECH-associated protein 1 (Keap1)-Nrf2 pathway mutations are a powerful cancer adaptation that utilizes inherent cytoprotective pathways, encompassing nutrient metabolism and ROS regulation. The augmentation of Nrf2 activity elicits significant alterations in the characteristics of neoplastic cells, such as resistance to radiotherapy and chemotherapy, safeguarding against apoptosis, heightened invasiveness, hindered senescence, impaired autophagy and increased angiogenesis. The altered activity of Nrf2 can arise from diverse genetic and epigenetic modifications that instantly impact Nrf2 regulation. The present study aims to showcase the correlation between the Keap1-Nrf2 pathway and the progression of cancers, emphasizing genetic mutations, metabolic processes, immune regulation, and potential therapeutic strategies. This article delves into the intricacies of Nrf2 pathway anomalies in cancer, the potential ramifications of uncontrolled Nrf2 activity, and therapeutic interventions to modulate the Keap1-Nrf2 pathway.
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Affiliation(s)
- Anirban Goutam Mukherjee
- Department of Biomedical Sciences, School of Bio-Sciences and Technology, Vellore Institute of Technology, Vellore, Tamil Nadu, 632014, India
| | - Abilash Valsala Gopalakrishnan
- Department of Biomedical Sciences, School of Bio-Sciences and Technology, Vellore Institute of Technology, Vellore, Tamil Nadu, 632014, India.
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Zhou P, Xu P, Yu W, Li H. MiR-206 improves intervertebral disk degeneration by targeting GJA1. J Orthop Surg Res 2022; 17:157. [PMID: 35279164 PMCID: PMC8917658 DOI: 10.1186/s13018-022-03044-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 03/02/2022] [Indexed: 12/15/2022] Open
Abstract
Background A large amount of evidence suggested that miRNA was involved in the progression of intervertebral disk degeneration (IDD). The purpose of our study was to explore the function and potential mechanism of miR-206/GJA1 axis in IDD. Methods IDD nucleus pulposus (NP) cell model was established through treatment of LPS. IDD rat model was established by annulus fibrosus puncture. The expression of miR-206 and GJA1 was detected by RT-PCR, apoptosis was evaluated by flow cytometry or TUNEL, inflammatory factors were tested by ELISA, extracellular matrix related protein expression was detected by western blot, and HE and safranin-O staining were used to assess the pathological changes of IDD. Results GJA1 was found to be highly expressed in IDD tissues and LPS-induced NP cells. Down regulation of GJA1 reduced inflammatory factors, inhibited apoptosis and enhanced extracellular matrix in LPS-induced NP cells. MiR-206 was downregulated in IDD tissues and directly targeted GJA1, and the expression of miR-206 was negatively correlated with the expression of GJA1 in IDD tissues. Further, it was demonstrated that overexpression of miR-206 could attenuate LPS-induced NP cell injury by targeting GJA1. In vivo, the upregulation of miR-206 improved IDD and reduced NP cell apoptosis. Conclusion Our study showed that miR-206 reduced the level of inflammatory factors, restrained NP cell apoptosis and increases extracellular matrix by targeting GJA1. These data suggested that miR-206/GJA1 might be potential therapeutic targets for IDD.
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Li H, Li K, Zhu Q, Tang Z, Wang Z. Transcriptomic analysis of bladder tissue in a rat model of ketamine-induced bladder fibrosis. Neurourol Urodyn 2022; 41:765-776. [PMID: 35170809 DOI: 10.1002/nau.24892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Revised: 01/27/2022] [Accepted: 01/29/2022] [Indexed: 11/10/2022]
Abstract
INTRODUCTION Ketamine-induced cystitis (KIC) is a disease caused by ketamine that can cause lower urinary tract symptoms (LUTS). Its end-stage is bladder contracture, which is related to bladder fibrosis and poses a serious burden to patient lives. METHODS We established a KIC model in female Sprague Dawley rats and verified bladder fibrosis in the model by Masson trichrome staining and western blot analysis. The bladders of the rats from the ketamine and control groups were used to perform transcriptome analysis. In particular, association analysis with metabolomics was also used to determine the potential mechanisms of ketamine-induced bladder fibrosis. RESULTS A total of 685 differentially expressed messenger RNAs, 71 differentially expressed long noncoding RNAs, 23 differentially expressed microRNAs, and 68 differentially expressed circular RNAs were identified. We found that ribosome, Wnt signaling, vascular endothelial growth factor signaling, cytoskeleton organization, and cytoskeletal protein binding may be potential pathways in ketamine-induced bladder fibrosis as identified by Gene Ontology and Kyoto Encyclopedia of Genes and Genomes analyses. In addition, the mitogen-activated protein kinase pathway appeared to be closely related to the development of ketamine-induced bladder fibrosis according to association analysis. CONCLUSIONS In this study, using transcriptomic and correlation analyses of metabolomics, we identified pathways that may be potential targets for the prevention and treatment of ketamine-induced bladder fibrosis.
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Affiliation(s)
- Haozhen Li
- Department of Urology, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Department of Urology, The second hospital of Dalian medical university, Dalian, Liaoning, China
| | - Kaixuan Li
- Department of Urology, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Provincial Laboratory for Diagnosis and Treatment of Genitourinary System Disease, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Quan Zhu
- Department of Urology, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Provincial Laboratory for Diagnosis and Treatment of Genitourinary System Disease, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Zhengyan Tang
- Department of Urology, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Provincial Laboratory for Diagnosis and Treatment of Genitourinary System Disease, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Zhao Wang
- Department of Urology, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Provincial Laboratory for Diagnosis and Treatment of Genitourinary System Disease, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
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8
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Tan HW, Xu YM, Qin SH, Chen GF, Lau ATY. Epigenetic regulation of angiogenesis in lung cancer. J Cell Physiol 2021; 236:3194-3206. [PMID: 33078404 DOI: 10.1002/jcp.30104] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 09/08/2020] [Accepted: 09/30/2020] [Indexed: 02/05/2023]
Abstract
Lung cancer is the leading cause of cancer-related deaths worldwide, in which angiogenesis is highly required for lung cancer cell growth and metastasis. Genetic regulation of this multistep process is being studied extensively, however, relatively less is known about the epigenetic regulation of angiogenesis in lung cancer. Several epigenetic alterations contribute to regulating angiogenesis, such as epimodifications of DNA, posttranslational modification of histones, and expression of noncoding RNAs. Here, we review the current knowledge of the epigenetic regulation of angiogenesis and discuss the potential clinical applications of epigenetic-based anticancer therapy in lung cancer. Overall, epigenetic-based therapy will likely emerge as a prominent approach to treat lung cancer in the future.
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Affiliation(s)
- Heng Wee Tan
- Laboratory of Cancer Biology and Epigenetics, Department of Cell Biology and Genetics, Shantou University Medical College, Shantou, Guangdong, People's Republic of China
| | - Yan-Ming Xu
- Laboratory of Cancer Biology and Epigenetics, Department of Cell Biology and Genetics, Shantou University Medical College, Shantou, Guangdong, People's Republic of China
| | - San-Hai Qin
- Laboratory of Cancer Biology and Epigenetics, Department of Cell Biology and Genetics, Shantou University Medical College, Shantou, Guangdong, People's Republic of China
| | - Guo-Feng Chen
- Department of Hepatobiliary Surgery, The Affiliated Huai'an No.1 People's Hospital of Nanjing Medical University, Huai'an, Jiangsu, People's Republic of China
| | - Andy T Y Lau
- Laboratory of Cancer Biology and Epigenetics, Department of Cell Biology and Genetics, Shantou University Medical College, Shantou, Guangdong, People's Republic of China
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Wang S, Ma F, Feng Y, Liu T, He S. Role of exosomal miR‑21 in the tumor microenvironment and osteosarcoma tumorigenesis and progression (Review). Int J Oncol 2020; 56:1055-1063. [PMID: 32319566 DOI: 10.3892/ijo.2020.4992] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2019] [Accepted: 02/07/2020] [Indexed: 11/06/2022] Open
Abstract
Osteosarcoma is the most common bone tumor affecting both adolescents and children. Early detection is critical for the effective treatment of the disease. Derived from cancer cells, miR‑21 contained within exosomes in the tumor microenvironment may act on both cancer cells and the surrounding tumor microenvironment (TME), including immune cells, endothelial cells and fibroblasts. In human serum and plasm, the level of exosomal miR‑21 between osteosarcoma patients and healthy controls differs, supporting the role of miR‑21 as a biomarker for osteosarcoma. The involvement of a number of miR‑21 target genes in tumor progression suggests that miR‑21 may significantly affect the plasticity of cancer cells, leading to tumor progression, metastasis, angiogenesis and immune escape in osteosarcoma. Understanding the biogenesis and functions of exosomal miR‑21 is of great value for the diagnosis and therapy of cancer, including osteosarcoma. The present review discusses the role of miR‑21 in the tumor microenvironment, and in the development and progression of osteosarcoma, with an aim to summarize the functions of this miRNA in cancer.
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Affiliation(s)
- Shoufeng Wang
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410000, P.R. China
| | - Fang Ma
- Department of Oncology, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410000, P.R. China
| | - Yi Feng
- Ovarian Cancer Research, Perelman School of Medicine, University of Pennsylvania, Philadephia, PA 19104, USA
| | - Tang Liu
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410000, P.R. China
| | - Shasha He
- Department of Oncology, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410000, P.R. China
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Zheng Y, Yang X, Wang C, Zhang S, Wang Z, Li M, Wang Y, Wang X, Yang X. HDAC6, modulated by miR-206, promotes endometrial cancer progression through the PTEN/AKT/mTOR pathway. Sci Rep 2020; 10:3576. [PMID: 32107418 PMCID: PMC7046652 DOI: 10.1038/s41598-020-60271-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Accepted: 02/10/2020] [Indexed: 01/15/2023] Open
Abstract
Endometrial cancer (EC) is the sixth most common cancer in women. Since early EC has a good prognosis, identifying methods for early diagnosis is valuable. Here, we aimed to study the role of HDAC6, which has been indicated important in many kinds of cancers, in EC diagnosis and therapy. First, the expression levels of HDAC6 in EC tissues and cells were measured by qRT-PCR and Western blotting, and through bioinformatics and dual luciferase assays, HDAC6 was found to be a direct target of miR-206. Then, CCK-8, colony formation, wound healing, and Transwell assays were performed; these results indicated that HDAC6 promoted EC cell proliferation, metastasis and invasion, while miR-206 produced the opposite effects. In addition, rescue assays verified that the effect of miR-206 could be reversed by HDAC6, and global gene expression analysis confirmed the relationship between miR-206 and HDAC6. Finally, we measured the levels of PTEN, p-AKT and p-mTOR and other key molecules and speculated that miR-206 might target HDAC6 to suppress EC progression via the PTEN/AKT/mTOR pathway. In conclusion, downregulation of miR-206 and upregulation of HDAC6 in EC may predict poor prognosis, and as the target gene of miR-206, HDAC achieves its carcinogenic effect through the PTEN/AKT/mTOR pathway.
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Affiliation(s)
- Yawen Zheng
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Xiaohui Yang
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Chunyan Wang
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Shuo Zhang
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Zhiling Wang
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Meng Li
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Yuanjian Wang
- West China School of Medicine, Sichuan University, Chengdu, Sichuan, China
| | - Xiaojie Wang
- Department of dermatology, Peking University People's Hospital, Beijing, China
| | - Xingsheng Yang
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Jinan, Shandong, China.
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11
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Xu X, Qiu B, Yi P, Li H. Overexpression of miR-206 in osteosarcoma and its associated molecular mechanisms as assessed through TCGA and GEO databases. Oncol Lett 2020; 19:1751-1758. [PMID: 32194668 PMCID: PMC7039051 DOI: 10.3892/ol.2020.11270] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Accepted: 11/22/2019] [Indexed: 12/29/2022] Open
Abstract
Osteosarcoma (OS) is a primary malignant bone tumor that predominantly occurs in adolescents. Different types of OS tumor are highly malignant, associated with a poor prognosis and are invasive with blood-vessel dissemination characteristics, thus affected patients are prone to early lung metastasis. MicroRNAs (miRNAs/miR) are small non-coding RNA molecules that act as oncogenes or tumor suppressors during tumor development. The present study investigated the role of miR-206 in OS development. Bioinformatics analysis demonstrated that miR-206 was upregulated in OS and thus may serve as a risk factor for cancer prognosis. Subsequently, in response to miR-206 overexpression, differentially expressed genes were screened and analyzed using the Database for Annotation, Visualization and Integrated Discovery, Gene Ontology enrichment analysis, the Kyoto Encyclopedia of Genes and Genomes pathways and protein-protein interaction network construction, in order to identify key miR-206 targets. The results demonstrated that high miR-206 expression inhibited OS cell proliferation, which was associated with a good patient prognosis. Thus, miR-206 may serve as a potential target for OS treatment, in order to improve early disease diagnosis.
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Affiliation(s)
- Xiongfeng Xu
- Department of Orthopedic Surgery, The Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Bo Qiu
- Department of Orthopedic Surgery, The Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Peng Yi
- Department of Orthopedic Surgery, The Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Huajie Li
- Department of Orthopedic Surgery, The Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
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12
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Yang Y, Wang W, Chang H, Han Z, Yu X, Zhang T. Reciprocal regulation of miR-206 and IL-6/STAT3 pathway mediates IL6-induced gefitinib resistance in EGFR-mutant lung cancer cells. J Cell Mol Med 2019; 23:7331-7341. [PMID: 31507089 PMCID: PMC6815809 DOI: 10.1111/jcmm.14592] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Accepted: 07/24/2019] [Indexed: 12/19/2022] Open
Abstract
Persistently activated IL‐6/STAT3 pathway promotes acquired resistance to targeted therapy with epidermal growth factor receptor‐tyrosine kinase inhibitors (EGFR‐TKIs) in non–small‐cell lung cancer (NSCLC) treatment. miR‐206 has been verified to be dysregulated and plays as a negative regulator in lung cancer. However, whether miR‐206 may overcome IL6‐induced gefitinib resistance in EGFR‐mutant lung cancer remains elusive. In this study, we investigated the role of miR‐206 in IL6‐induced gefitinib‐resistant EGFR‐mutated lung cancer cell lines. We showed that forced miR‐206 expression restored gefitinib sensitivity in IL6‐induced gefitinib‐resistant EGFR‐mutant lung cancer cells by inhibiting IL6/JAK1/STAT3 pathway. Specifically, mechanistic investigations revealed that miR‐206 blocked IL‐6/STAT3 signalling via directly targeting the 3'‐UTR of intracellular IL‐6 messenger RNA. Moreover, IL‐6 induced miR‐206 down‐regulation by reducing the cropping process of primary miR‐206 (pri‐miR‐206) into the Drosha/DGCR8 complex. Taken together, our findings reveal a direct role of miR‐206 in regulating IL‐6/STAT3 pathway and contrarily activated IL‐6/STAT3 signalling mediates the miR‐206 maturation process in gefitinib‐resistant EGFR‐mutant lung cancer cells.
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Affiliation(s)
- Yanhua Yang
- Department of Pathology, Qilu Hospital, Shandong University, Jinan, China.,Department of Pathology, Qingdao Municipal Hospital, Qingdao, China
| | - Wei Wang
- Department of Pathology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Hong Chang
- Department of Pathology, The Third People's Hospital of Qingdao, Qingdao, China
| | - Zenglei Han
- Department of Pathology, Qingdao Municipal Hospital, Qingdao, China
| | - Xinjuan Yu
- Center Laboratory, Qingdao Municipal Hospital, Qingdao, China
| | - Tingguo Zhang
- Department of Pathology, Qilu Hospital, Shandong University, Jinan, China.,Department of Pathology, School of Basic Medical Sciences, Shandong University, Jinan, China
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13
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Fan C, Liu N, Zheng D, Du J, Wang K. MicroRNA-206 inhibits metastasis of triple-negative breast cancer by targeting transmembrane 4 L6 family member 1. Cancer Manag Res 2019; 11:6755-6764. [PMID: 31413629 PMCID: PMC6660099 DOI: 10.2147/cmar.s199027] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 05/04/2019] [Indexed: 12/21/2022] Open
Abstract
Purpose: Breast cancer (BC) is a common malignancy in women, but the survival rate for BC is not very encouraging. Especially for triple-negative breast cancer (TNBC), a kind of breast cancer that does not have any of the receptors that are commonly found in BC. We investigated the impact of microRNA-206 (miR-206) on transmembrane 4 L6 family member 1 (TM4SF1) in TNBC for therapeutic purpose. Patients and methods: Twenty BC tissues from diagnosed BC patients were analyzed via real-time PCR and Western blotting for expression of TM4SF1 and miR-206. The expression of TM4SF1 was studied in relationship with miR-206 in MDA-MB-231 cells. The biological impact of TM4SF1 and miR-206 on MDA-MB-231 cells and BALB/c nude mice model was studied using proliferation, transwell migration, and invasion assays both in vitro and in vivo. Results: The expression of TM4SF1 in BC tissues was significantly higher than that in adjacent normal breast tissues. In contrast, miR-206 showed a decreased expression level in BC tissues, especially for subtype basal like. Overexpression of miR-206 in MDA-MB-231 cells by transfecting miR-206 resulted in downregulation of TM4SF1. In contrast, knockdown miR-206 expression reversed miR-206-mediated phenotype in MDA-MB-231 cells. Expression level of TM4SF1 in MDA-MB-231 cells was associated with cell migration and invasion capabilities in vitro. Breast tumor burden was correlated with the expression level of TM4SF1 in vivo. Conclusion: Taken together, our results showed the involvement of TM4SF1 in TNBC migration and invasion. miR-206 negatively regulated gene expression of TM4SF1. These findings indicate that miR-206 could be used as a potential therapeutic agent for TNBC.
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Affiliation(s)
- Chunni Fan
- Department of Breast Surgery, China‑Japan Union Hospital of Jilin University, Changchun, Jilin Province 130033, People's Republic of China
| | - Ning Liu
- Department of Breast Surgery, China‑Japan Union Hospital of Jilin University, Changchun, Jilin Province 130033, People's Republic of China
| | - Dan Zheng
- Department of Breast Surgery, China‑Japan Union Hospital of Jilin University, Changchun, Jilin Province 130033, People's Republic of China
| | - Jianshi Du
- Department of Vascular Surgery, China-Japan Union Hospital of Jilin University, Changchun, Jilin Province 130033, People's Republic of China
| | - Keren Wang
- Department of Breast Surgery, China‑Japan Union Hospital of Jilin University, Changchun, Jilin Province 130033, People's Republic of China
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LncRNA MALAT1 promotes migration and invasion of non-small-cell lung cancer by targeting miR-206 and activating Akt/mTOR signaling. Anticancer Drugs 2019; 29:725-735. [PMID: 29916897 DOI: 10.1097/cad.0000000000000650] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Long noncoding RNA (lncRNA) metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) functions as a crucial regulator of metastasis in lung cancer. The aim of this study is to unravel the underlying mechanisms of lncRNA MALAT1 in non-small-cell lung cancer (NSCLC). A cohort of 36 NSCLC tumor tissues and adjacent normal tissues was collected postoperatively from patients with NSCLC. qRT-PCR was performed to detect the expression of MALAT1 in both NSCLC tissues and cell lines. Cell migration and invasion were monitored by wound healing assay and transwell invasion assay. Western blot was used to detect the expression levels of epithelial-mesenchymal transition proteins and Akt/mTOR key components after treatment. Dual luciferase reporter assay coupled with qRT-PCR was used to verify the direct interaction between MALAT1 and miR-206. MALAT1 was significantly up-regulated in both NSCLC tissues and cell lines. High expression of MALAT1 correlated positively with tumor size and lymphatic metastasis in NSCLC, whereas no correlation was found between MALAT1 expression and sex, age, clinical stage, and histological grade. We also showed that MALAT1 promoted epithelial-mesenchymal transition, cell migration, and invasion by activating Akt/mTOR signaling in A549 and H1299 cells. miR-206 was a direct downstream target of MALAT1 in NSCLC. MALAT1 promoted cell migration and invasion by sponging miR-206 in NSCLC cells. In addition, miR-206 inhibited MALAT1-mediated activation of Akt/mTOR signaling in A549 and H1299 cells. lncRNA MALAT1 promotes migration and invasion of NSCLC by targeting miR-206 and activating Akt/mTOR signaling.
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15
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Over-expression of miR-206 decreases the Euthyrox-resistance by targeting MAP4K3 in papillary thyroid carcinoma. Biomed Pharmacother 2019; 114:108605. [DOI: 10.1016/j.biopha.2019.108605] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 01/04/2019] [Accepted: 01/18/2019] [Indexed: 01/13/2023] Open
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16
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Gu L, Shi Y, Xu W, Ji Y. PPARβ/δ Agonist GW501516 Inhibits Tumorigenesis and Promotes Apoptosis of the Undifferentiated Nasopharyngeal Carcinoma C666-1 Cells by Regulating miR-206. Oncol Res 2019; 27:923-933. [PMID: 30982495 PMCID: PMC7848406 DOI: 10.3727/096504019x15518706875814] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
In previous investigations, we reported that peroxisome proliferator-activated receptor β/δ (PPARβ/δ) activation by GW501516 inhibits proliferation and promotes apoptosis in the undifferentiated C666-1 nasopharyngeal carcinoma (NPC) cells by modulating caspase-dependent apoptotic pathway. In the present study, the mechanism by which GW501516 induces apoptosis was explored from the perspective of microRNA (miRNA) expression. Among the assayed miRNAs that were involved in regulating the expression of antiapoptotic protein Bcl-2, miR-206 was increased significantly and specifically by GW501516 in C666-1 cells at both the in vitro level and at the in vivo xenograft samples. The induction on miR-206 expression caused by GW501516 was capable of being antagonized by the PPARβ/δ antagonist GSK3787 and AMPK antagonist dorsomorphin in C666-1 cells. GW501516's suppression on the growth and apoptosis of C666-1 cells was found to be dependent on the presence of miR-206. miR-206 overexpression resulted in suppressed proliferation and colony formation ability, and further triggered increased apoptosis in C666-1 cells in a caspase-dependent manner. The expression of cleaved caspase 3 and caspase 9, and the ratio of Bax to Bcl-2 were elevated remarkably by miR-206. Consistent with the in vitro result, miR-206 was corroborated to suppress the ectopic NPC xenograft tumorigenesis that derived from the C666-1 cells in BALB/c nu/nu mice. Taken together, the current data demonstrated that miR-206 plays a critical role in the direct apoptosis-promoting effect induced by GW501516 in C666-1 cells. Furthermore, the emphasized tumor-suppressive role of miR-206 in the C666-1 cells indicates that it has the potential to provide a new therapeutic approach for the undifferentiated NPC.
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Affiliation(s)
- Linglan Gu
- Department of ENT, Central Hospital of Minhang District (Minhang Hospital Fudan University), Shanghai, P.R. China
| | - Yi Shi
- Department of ENT, Central Hospital of Minhang District (Minhang Hospital Fudan University), Shanghai, P.R. China
| | - Weimin Xu
- Department of ENT, Central Hospital of Minhang District (Minhang Hospital Fudan University), Shanghai, P.R. China
| | - Yangyang Ji
- Department of ENT, Central Hospital of Minhang District (Minhang Hospital Fudan University), Shanghai, P.R. China
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17
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Wang Y, Tai Q, Zhang J, Kang J, Gao F, Zhong F, Cai L, Fang F, Gao Y. MiRNA-206 inhibits hepatocellular carcinoma cell proliferation and migration but promotes apoptosis by modulating cMET expression. Acta Biochim Biophys Sin (Shanghai) 2019; 51:243-253. [PMID: 30805592 DOI: 10.1093/abbs/gmy119] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 08/22/2018] [Indexed: 12/25/2022] Open
Abstract
A close relationship between cancer progression and microRNAs (miRNAs) regulation has been demonstrated. Abnormal microRNA-206 (miR-206) expression has been shown to be related to the development of malignancies. However, the role of miR-206 in hepatocellular carcinoma (HCC) remains unclear. Here, we evaluated the function of miR-206 in HCC. Results showed that miR-206 expression was decreased in 27 human HCC tissues compared with that of adjacent normal tissues. Conversely, cMET was up-regulated in human HCC cancer tissues, and cMET levels were shown to be negatively correlated with miR-206 expression. Abnormally increased miR-206 expression in three HCC cell lines (SMMC-7721, HepG2, and Huh7) attenuated cell viability, migration, and invasion. Increased apoptosis was also observed in these miR-206 expressing cells. Furthermore, we identified that miR-206 targets the 3'-UTR of the cMET gene for silencing, and restoration of cMET expression reversed the inhibitory effect of miR-206 on HCC. Tumor cells expressing miR-206 also showed delayed growth in the in vivo experiments compared with the controls. Altogether, our findings provide new insights into the molecular mechanisms of HCC oncogenesis.
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Affiliation(s)
- Yuanxi Wang
- Department of General Surgery, Shenzhen Hospital, Southern Medical University, Shenzhen, China
| | - Qinwen Tai
- Department of General Surgery, Shenzhen Hospital, Southern Medical University, Shenzhen, China
| | - Jinhui Zhang
- Department of General Surgery, Shenzhen Hospital, Southern Medical University, Shenzhen, China
| | - Junsheng Kang
- Department of General Surgery, Shenzhen Hospital, Southern Medical University, Shenzhen, China
| | - Feng Gao
- Department of General Surgery, Shenzhen Hospital, Southern Medical University, Shenzhen, China
| | - Feng Zhong
- Department of General Surgery, Shenzhen Hospital, Southern Medical University, Shenzhen, China
| | - Liquan Cai
- Department of General Surgery, Shenzhen Hospital, Southern Medical University, Shenzhen, China
| | - Fa Fang
- Department of General Surgery, Shenzhen Hospital, Southern Medical University, Shenzhen, China
| | - Yi Gao
- Department of Hepatobiliary Surgery II, Guangdong Provincial Research Center for Artificial Organ and Tissue Engineering, Guangzhou Clinical Research and Transformation Center for Artificial Liver, Institute of Regenerative Medicine, Zhujiang Hospital of Southern Medical University, Guangzhou, China
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18
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Identification of key genes and construction of microRNA-mRNA regulatory networks in non-small cell lung cancer. Cancer Genet 2018; 228-229:47-54. [DOI: 10.1016/j.cancergen.2018.08.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2018] [Revised: 07/30/2018] [Accepted: 08/15/2018] [Indexed: 12/22/2022]
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19
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MiRNA-206 suppresses PGE2-induced colorectal cancer cell proliferation, migration, and invasion by targetting TM4SF1. Biosci Rep 2018; 38:BSR20180664. [PMID: 30135139 PMCID: PMC6146292 DOI: 10.1042/bsr20180664] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 08/10/2018] [Accepted: 08/20/2018] [Indexed: 12/21/2022] Open
Abstract
MiRNA (miR)-206 plays a tumor suppressor role in various cancer types. Here, we investigated whether miR-206 is involved in prostaglandin E2 (PGE2)-induced epithelial–mesenchymal transition (EMT) in colorectal cancer (CRC) cells through the targetting of transmembrane 4 L six family member 1 (TM4SF1). The effect of PGE2 on growth and apoptosis of CRC cells was evaluated using the MTT assay and flow cytometry analysis, respectively. TM4SF1 and miR-206 expression levels were determined with quantitative polymerase chain reaction (qRT-PCR) in CRC tissues and cell lines. The concentration of PGE2 in the serum of CRC patients and healthy controls was measured with an ELISA kit. A miR-206 or TM4SF1 construct was transfected into cells with PGE2. Transwell migration and invasion assays were used to examine cell migration and invasion properties. Additionally, a luciferase assay was performed to determine whether TM4SF1 was directly targetted by miR-206. We found that miR-206 was down-regulated and TM4SF1 was up-regulated in human CRC tissues and cell lines. Moreover, miR-206 was negatively correlated with TM4SF1 expression. Bioinformatics analysis and a luciferase reporter assay revealed that miR-206 directly targetted the 3′-untranslated region (UTR) of TM4SF1, and TM4SF1 expression was reduced by miR-206 overexpression at both the mRNA and protein levels. Additionally, PGE2 significantly suppressed the expression of miR-206 and increased the expression of TM4SF1 in CRC cells. PGE2 induction led to enhanced CRC cell proliferation, migration, and invasion. Moreover, the overexpression of miR-206 decreased CRC cell proliferation, migration, and invasion compared with control group in PGE2-induced cells, and these effects could be recovered by the overexpression of TM4SF1. Overexpression of miR-206 also suppressed the expression of β-catenin, VEGF, MMP-9, Snail, and Vimentin and enhanced E-cadherin expression in PGE2-induced cells. These results could be reversed by the overexpression of TM4SF1. At last, up-regulation of miR-206 suppressed expression of p-AKT and p-ERK by targetting TM4SF1 in PGE2-induced cells. Our results provide further evidence that miR-206 has a protective effect on PGE2-induced colon carcinogenesis.
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20
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Guo N, Zhao Y, Zhang W, Li S, Li S, Yu J. MicroRNA-133a downregulated EGFR expression in human non-small cell lung cancer cells via AKT/ERK signaling. Oncol Lett 2018; 16:6045-6050. [PMID: 30333876 DOI: 10.3892/ol.2018.9399] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Accepted: 01/22/2018] [Indexed: 01/01/2023] Open
Abstract
MicroRNAs (miRNAs) may serve important roles in the regulation of human non-small cell lung cancer (NSCLC) cell growth and apoptosis. To the best of our knowledge, the present study was the first to explore the role of miRNA-133a/epidermal growth factor receptor (EGFR) in regulating NSCLC cell growth and apoptosis via the AKT/extracellular signal-regulated kinase (ERK) signaling pathway. It was determined that miRNA-133a expression was lower in NSCLC tissue than in the adjacent mucosae. Additionally, EGFR expression in the NSCLC tissue was higher compared with in the adjacent mucosae. Furthermore, the upregulation of miRNA-133a in NSCLC cells suppressed cell growth and induced apoptosis. Upregulating miRNA-133a also increased caspase-3 protein expression, while suppressing that of EGFR, phosphorylated (p)-AKT and p-ERK in NSCLC cells. Therefore, the results of the current study demonstrated that miRNA-133a downregulates EGFR expression in NSCLC via the AKT/ERK signaling pathway. These findings provide insights into the function of miRNA-133a in NSCLC, as well as into the molecular mechanisms underlying the miRNA-133a-mediated downregulation of the EGFR/AKT/ERK signaling pathway in NSCLC.
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Affiliation(s)
- Nannan Guo
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of General Hospital of The Chinese People's Liberation Army, Beijing 100048, P.R. China
| | - Yingnan Zhao
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of General Hospital of The Chinese People's Liberation Army, Beijing 100048, P.R. China
| | - Wen Zhang
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of General Hospital of The Chinese People's Liberation Army, Beijing 100048, P.R. China
| | - Shaojun Li
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of General Hospital of The Chinese People's Liberation Army, Beijing 100048, P.R. China
| | - Shanshan Li
- Xi Shan Clinic, 309th Hospital of PLA, Beijing 100091, P.R. China
| | - Jianqi Yu
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of General Hospital of The Chinese People's Liberation Army, Beijing 100048, P.R. China
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Umeh-Garcia M, Sweeney C. Cancer prevention through miRNAs: miR-206 prevents the initiation and progression of hepatocellular carcinoma by attenuating c-MET signaling and cell-cycle progression via cyclin D1 and CDK6. ACTA ACUST UNITED AC 2018; 2. [PMID: 31930188 DOI: 10.21037/ncri.2018.06.05] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Maxine Umeh-Garcia
- Department of Biochemistry and Molecular Medicine, University of California, Davis, Sacramento, CA, USA
| | - Colleen Sweeney
- Department of Biochemistry and Molecular Medicine, University of California, Davis, Sacramento, CA, USA
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22
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Wang Y, Xu H, Si L, Li Q, Zhu X, Yu T, Gang X. MiR-206 inhibits proliferation and migration of prostate cancer cells by targeting CXCL11. Prostate 2018. [PMID: 29542173 DOI: 10.1002/pros.23468] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
BACKGROUND Our study was aimed at detecting the expression levels of miR-206 in prostate cancer (PCa) tissues and PCa cell lines, and exploring the potential functions of miR-206 by targeting chemokine ligand 11 (CXCL11). METHODS RT-qPCR was applied to detect the expressions of miR-206 and CXCL11 in PCa tissues and in PCa cell lines. Expression of the CXCL11 protein was detected using Western blot. After manipulating the expression of miR-206 and CXCL11 in PC-3 and DU-145 cells, the changes of cell proliferation and cell cycle were observed through cell counting kit-8 (CCK-8) and flow cytometry. Wound healing and transwell assay were conducted for cell migration and invasion examination in vitro. The luciferase reporter assay was applied to validate the association between miR-206 and CXCL11. RESULTS MiR-206 was significantly under-expressed in PCa tissues and in PCa cell lines. Up-regulation of miR-206 could inhibit proliferation, migration, invasion and induced G1/G0 arrest of PCa cells, and vice versa. MiR-206 bound to the 3'-UTR of CXCL11 and significantly repressed the luciferase activity. Overexpression of miR-206 decreased the expression level of CXCL11 significantly. CXCL11 mRNA and protein levels were significantly decreased in PCa cells. Downregulation of CXCL11 presented tumor-suppressing effects on PCa cells as miR-206 mimics did. And co-transfection miR-206 attenuated the tumor-promoting effects induced by CXCL11 overexpression. CONCLUSION Our current finding demonstrated that miR-206 negatively regulated PCa cell proliferation and migration, and arrested cell cycle by targeting CXCL11 as a tumor suppressor in prostate cancer.
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Affiliation(s)
- Yao Wang
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, Jilin, China
| | - Haitao Xu
- Department of Ophthalmology, The Second Hospital of Jilin University, Changchun, Jilin, China
| | - Lihui Si
- Department of Gynaecology and Obstetrics, The Second Hospital of Jilin University, Changchun, Jilin, China
| | - Qiuju Li
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, Jilin, China
| | - Xiujie Zhu
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, Jilin, China
| | - Tong Yu
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, Jilin, China
| | - Xiaokun Gang
- Department of Endocrinology and Metabolism, The First Hospital of Jilin University, Changchun, Jilin, China
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Jiao D, Chen J, Li Y, Tang X, Wang J, Xu W, Song J, Li Y, Tao H, Chen Q. miR-1-3p and miR-206 sensitizes HGF-induced gefitinib-resistant human lung cancer cells through inhibition of c-Met signalling and EMT. J Cell Mol Med 2018; 22:3526-3536. [PMID: 29664235 PMCID: PMC6010770 DOI: 10.1111/jcmm.13629] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2017] [Accepted: 03/08/2018] [Indexed: 12/20/2022] Open
Abstract
Hepatocyte growth factor (HGF) overexpression is an important mechanism in acquired epidermal growth factor receptor (EGFR) kinase inhibitor gefitinib resistance in lung cancers with EGFR activating mutations. MiR-1-3p and miR-206 act as suppressors in lung cancer proliferation and metastasis. However, whether miR-1-3p and miR-206 can overcome HGF-induced gefitinib resistance in EGFR mutant lung cancer is not clear. In this study, we showed that miR-1-3p and miR-206 restored the sensitivities of lung cancer cells PC-9 and HCC-827 to gefitinib in present of HGF. For the mechanisms, we demonstrated that both miR-1-3p and miR-206 directly target HGF receptor c-Met in lung cancer. Knockdown of c-Met mimicked the effects of miR-1-3p and miR-206 transfections Meanwhile, c-Met overexpression attenuated the effects of miR-1-3p and miR-206 in HGF-induced gefitinib resistance of lung cancers. Furthermore, we showed that miR-1-3p and miR-206 inhibited c-Met downstream Akt and Erk pathway and blocked HGF-induced epithelial-mesenchymal transition (EMT). Finally, we demonstrated that miR-1-3p and miR-206 can increase gefitinib sensitivity in xenograft mouse models in vivo. Our study for the first time indicated the new function of miR-1-3p and miR-206 in overcoming HGF-induced gefitinib resistance in EGFR mutant lung cancer cell.
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Affiliation(s)
- Demin Jiao
- Department of Respiratory Disease, The 117th Hospital of PLA, Hangzhou, Zhejiang, China
| | - Jun Chen
- Department of Respiratory Disease, The 117th Hospital of PLA, Hangzhou, Zhejiang, China
| | - Yu Li
- Department of Respiratory Disease, The 117th Hospital of PLA, Hangzhou, Zhejiang, China
| | - Xiali Tang
- Department of Respiratory Disease, The 117th Hospital of PLA, Hangzhou, Zhejiang, China
| | - Jian Wang
- Department of Respiratory Disease, The 117th Hospital of PLA, Hangzhou, Zhejiang, China
| | - Wei Xu
- Department of Respiratory Disease, The 117th Hospital of PLA, Hangzhou, Zhejiang, China
| | - Jia Song
- Department of Respiratory Disease, The 117th Hospital of PLA, Hangzhou, Zhejiang, China
| | - You Li
- Department of Respiratory Disease, The 117th Hospital of PLA, Hangzhou, Zhejiang, China
| | - Huimin Tao
- Department of Respiratory Disease, The 117th Hospital of PLA, Hangzhou, Zhejiang, China
| | - Qingyong Chen
- Department of Respiratory Disease, The 117th Hospital of PLA, Hangzhou, Zhejiang, China.,The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
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Heinemann FG, Tolkach Y, Deng M, Schmidt D, Perner S, Kristiansen G, Müller SC, Ellinger J. Serum miR-122-5p and miR-206 expression: non-invasive prognostic biomarkers for renal cell carcinoma. Clin Epigenetics 2018; 10:11. [PMID: 29410711 PMCID: PMC5781339 DOI: 10.1186/s13148-018-0444-9] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Accepted: 01/11/2018] [Indexed: 12/20/2022] Open
Abstract
Background MicroRNAs (miRNA) play a relevant role in carcinogenesis, cancer progression, invasion, and metastasis. Thus, they can serve as diagnostic/prognostic biomarkers. The knowledge on circulating miRNAs for clear cell renal cell carcinomas (ccRCC) is limited. Our study was designed to identify novel biomarkers for ccRCC patients. Results The serum small RNA expression profile was determined in 18 ccRCC and 8 patients with benign renal tumors (BRT) using small RNA sequencing. We detected 29 differentially expressed miRNAs (17 upregulated and 12 downregulated in ccRCC) in the expression profiling cohort. Based on the expression levels, we next validated serum miR-122-5p, miR-193a-5p, and miR-206 levels in an independent cohort (68 ccRCC, 47 BRT, and 28 healthy individuals) using quantitative real-time PCR. Serum expression levels of miR-122-5p and miR-206 were significantly decreased in ccRCC compared to healthy individuals. Both miRNAs were circulating at similar levels in ccRCC and BRT patients. miR-193a-5p expression levels were not different within the study cohort. High serum miR-122-5p and miR-206 levels were associated with adverse clinicopathological parameters: miR-122-5p levels were correlated with metastatic RCC and grade, and miR-206 with pT-stage and metastasis. Furthermore, high miR-122-5p and miR-206 serum levels were associated with a shorter period of progression-free, cancer-specific, and overall survival in patients with ccRCC. Conclusion We identified serum miR-122-5p and miR-206 as novel non-invasive prognostic biomarkers for patients with ccRCC. Electronic supplementary material The online version of this article (10.1186/s13148-018-0444-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
| | - Yuri Tolkach
- 2Institute of Pathology, University Hospital Bonn, Bonn, Germany
| | - Mario Deng
- 3Institute of Pathology, Campus Luebeck, University Hospital Schleswig-Holstein, Luebeck, Germany
| | - Doris Schmidt
- 1Department of Urology, University Hospital Bonn, Bonn, Germany
| | - Sven Perner
- 3Institute of Pathology, Campus Luebeck, University Hospital Schleswig-Holstein, Luebeck, Germany
| | - Glen Kristiansen
- 2Institute of Pathology, University Hospital Bonn, Bonn, Germany
| | - Stefan C Müller
- 1Department of Urology, University Hospital Bonn, Bonn, Germany
| | - Jörg Ellinger
- 1Department of Urology, University Hospital Bonn, Bonn, Germany
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25
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Chen QY, Jiao DM, Wang J, Hu H, Tang X, Chen J, Mou H, Lu W. miR-206 regulates cisplatin resistance and EMT in human lung adenocarcinoma cells partly by targeting MET. Oncotarget 2017; 7:24510-26. [PMID: 27014910 PMCID: PMC5029718 DOI: 10.18632/oncotarget.8229] [Citation(s) in RCA: 78] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Accepted: 03/04/2016] [Indexed: 01/15/2023] Open
Abstract
MicroRNAs (miRNAs) play a critical role in drug resistance and epithelial-mesenchymal transition (EMT). The aims of this study were to explore the potential role of miR-206 in governing cisplatin resistance and EMT in lung cancer cells. We found that both lung adenocarcinoma A549 cisplatin-resistant cells (A549/DDP) and H1299 cisplatin-resistant cells (H1299/DDP) acquired mesenchymal features and were along with low expression of miR-206 and high migration and invasion abilities. Ectopic expression of miR-206 mimics inhibited cisplatin resistance, reversed the EMT phenotype, decreased the migration and invasion in these DDP-resistant cells. In contrast, miR-206 inhibitors increased cisplatin resistance, EMT, cell migration and invasion in non-DDP-resistant cells. Furthermore, we found that MET is the direct target of miR-206 in lung cancer cells. Knockdown of MET exhibited an EMT and DDP resistant inhibitory effect on DDP-resistant cells. Conversely, overexpression of MET in non-DDP- resistant cells produced a promoting effect on cell EMT and DDP resistance. In lung adenocarcinoma tissues, we demonstrated that low expression of miR-206 were also correlated with increased cisplatin resistance and MET expression. In addition, we revealed that miR-206 overexpression reduced cisplatin resistance and EMT in DDP-resistant cells, partly due to inactivation of MET/PI3K/AKT/mTOR signaling pathway, and subsequent downregulation of MDR1, ZEB1 and Snail expression. Finally, we found that miR-206 could also sensitize A549/DDP cells to cisplatin in mice model. Taken together, our study implied that activation of miR-206 or inactivation of its target gene pathway could serve as a novel approach to reverse cisplatin resistance in lung adenocarcinomas cells.
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Affiliation(s)
- Qing-Yong Chen
- Department of Respiratory Disease, The 117th Hospital of PLA, Hangzhou, Zhejiang, 310013, P.R. China
| | - De-Min Jiao
- Department of Respiratory Disease, The 117th Hospital of PLA, Hangzhou, Zhejiang, 310013, P.R. China
| | - Jian Wang
- Department of Respiratory Disease, The 117th Hospital of PLA, Hangzhou, Zhejiang, 310013, P.R. China
| | - Huizhen Hu
- Department of Respiratory Disease, The 117th Hospital of PLA, Hangzhou, Zhejiang, 310013, P.R. China
| | - Xiali Tang
- Department of Respiratory Disease, The 117th Hospital of PLA, Hangzhou, Zhejiang, 310013, P.R. China
| | - Jun Chen
- Department of Respiratory Disease, The 117th Hospital of PLA, Hangzhou, Zhejiang, 310013, P.R. China
| | - Hao Mou
- Department of Respiratory Disease, The 117th Hospital of PLA, Hangzhou, Zhejiang, 310013, P.R. China
| | - Wei Lu
- Department of Oncology, The 117th Hospital of PLA, Hangzhou, Zhejiang, 310013, P.R. China
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Liu F, Zhao X, Qian Y, Zhang J, Zhang Y, Yin R. MiR-206 inhibits Head and neck squamous cell carcinoma cell progression by targeting HDAC6 via PTEN/AKT/mTOR pathway. Biomed Pharmacother 2017; 96:229-237. [PMID: 28987947 DOI: 10.1016/j.biopha.2017.08.145] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Revised: 08/10/2017] [Accepted: 08/10/2017] [Indexed: 11/26/2022] Open
Abstract
As a kind of endogenous noncoding small RNA, microRNA (miRNA) plays important roles of regulation to various physiological functions, while its affections on senescence of human Head and neck squamous cell carcinoma (HNSCC) are still unknown. The objective of this study was to investigate the effect of miR-206 in HNSCC tissues, adjacent normal tissues and cell lines, and explore its biological functions in HNSCC. In our study, the level of miR-206 in HNSCC tissues and adjacent normal tissues was detected via real-time qPCR. The effect of miR-206 on cell proliferation was tested by MTT assay, colony formation and cell cycle assays. In order to explore the effect of miR-206 on HNSCC cell migration and invasion, we performed wound healing assays and transwell assays. Luciferase reporter assays were designed to identify the interaction between 3'UTR of HDAC6 and miR-206. The level of signaling pathway-related proteins was determined by western blot. The expression of miR-206 was found to be observably decreased in HNSCC tissues and cell lines through real time-PCR. Restoration of miR-206 weaked cell proliferation, invasion and migration in HNSCC cells and the cell cycle was arrest in S phase. Further explores have shown that miR-206 could inhibit HNSCC cells proliferation by targeting the HDAC6 via PTEN/AKT/mTOR pathway. Taken together, our results demonstrated that miR-206 plays a critical role in HNSCC progression by targeting HDAC6 via PTEN/AKT/mTOR pathway, which might be a potential target for diagnostic and therapeutic in HNSCC.
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Affiliation(s)
- Fangzhou Liu
- Department of Head and Neck Surgery, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing Medical University Affiliated Cancer Hospital, Nangjing 210000, China
| | - Xiaotong Zhao
- Department of Otolaryngology Head and Neck Surgery, Affiliated Hospital of XuZhou Medical University, Xuzhou 221000, China
| | - Yichun Qian
- Department of Head and Neck Surgery, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing Medical University Affiliated Cancer Hospital, Nangjing 210000, China
| | - Jia Zhang
- Department of Positron Emission Tomography-Computed Tomography, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing Medical University Affiliated Cancer Hospital, Nangjing 210000, China
| | - Yuan Zhang
- Department of Head and Neck Surgery, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing Medical University Affiliated Cancer Hospital, Nangjing 210000, China
| | - Rong Yin
- Department of Thoracic Surgery, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing Medical University Affiliated Cancer Hospital, Nangjing 210000, China.
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Pan JY, Sun CC, Bi ZY, Chen ZL, Li SJ, Li QQ, Wang YX, Bi YY, Li DJ. miR-206/133b Cluster: A Weapon against Lung Cancer? MOLECULAR THERAPY. NUCLEIC ACIDS 2017; 8:442-449. [PMID: 28918043 PMCID: PMC5542379 DOI: 10.1016/j.omtn.2017.06.002] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Revised: 05/25/2017] [Accepted: 06/02/2017] [Indexed: 12/29/2022]
Abstract
Lung cancer is a deadly disease that ends numerous lives around the world. MicroRNAs (miRNAs) are a group of non-coding RNAs involved in a variety of biological processes, such as cell growth, organ development, and tumorigenesis. The miR-206/133b cluster is located on the human chromosome 6p12.2, which is essential for growth and rebuilding of skeletal muscle. The miR-206/133b cluster has been verified to be dysregulated and plays a crucial role in lung cancer. miR-206 and miR-133b participate in lung tumor cell apoptosis, proliferation, migration, invasion, angiogenesis, drug resistance, and cancer treatment. The mechanisms are sophisticated, involving various target genes and molecular pathways, such as MET, EGFR, and the STAT3/HIF-1α/VEGF signal pathway. Hence, in this review, we summarize the role and potential mechanisms of the miR-206/133b cluster in lung cancer.
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Affiliation(s)
- Jing-Yu Pan
- Department of Occupational and Environmental Health, School of Public Health, Wuhan University, Wuhan 430071 Hubei, P.R. China
| | - Cheng-Cao Sun
- Department of Occupational and Environmental Health, School of Public Health, Wuhan University, Wuhan 430071 Hubei, P.R. China.
| | - Zhuo-Yue Bi
- Hubei Provincial Key Laboratory for Applied Toxicology (Hubei Provincial Academy for Preventive Medicine), Wuhan 430079 Hubei, P.R. China
| | - Zhen-Long Chen
- Wuhan Hospital for the Prevention and Treatment of Occupational Diseases, Wuhan 430022 Hubei, P.R. China
| | - Shu-Jun Li
- Department of Occupational and Environmental Health, School of Public Health, Wuhan University, Wuhan 430071 Hubei, P.R. China; Wuhan Hospital for the Prevention and Treatment of Occupational Diseases, Wuhan 430022 Hubei, P.R. China
| | - Qing-Qun Li
- Department of Occupational and Environmental Health, School of Public Health, Wuhan University, Wuhan 430071 Hubei, P.R. China
| | - Yu-Xuan Wang
- Department of Occupational and Environmental Health, School of Public Health, Wuhan University, Wuhan 430071 Hubei, P.R. China
| | - Yong-Yi Bi
- Department of Occupational and Environmental Health, School of Public Health, Wuhan University, Wuhan 430071 Hubei, P.R. China
| | - De-Jia Li
- Department of Occupational and Environmental Health, School of Public Health, Wuhan University, Wuhan 430071 Hubei, P.R. China.
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Zhang YX, Yan YF, Liu YM, Li YJ, Zhang HH, Pang M, Hu JX, Zhao W, Xie N, Zhou L, Wang PY, Xie SY. Smad3-related miRNAs regulated oncogenic TRIB2 promoter activity to effectively suppress lung adenocarcinoma growth. Cell Death Dis 2016; 7:e2528. [PMID: 28005074 PMCID: PMC5260984 DOI: 10.1038/cddis.2016.432] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Revised: 11/21/2016] [Accepted: 11/22/2016] [Indexed: 12/19/2022]
Abstract
MicroRNAs (miRNAs) and Smad3, as key transcription factors in transforming growth factor-β1 (TGF-β1) signaling, help regulate various physiological and pathological processes. We investigated the roles of Smad3-regulated miRNAs with respect to lung adenocarcinoma cell apoptosis, proliferation, and metastasis. We observed that Smad3 and phospho-SMAD3 (p-Smad3) were decreased in miR-206- (or miR-140)-treated cells and there might be a feedback loop between miR-206 (or miR-140) and TGF-β1 expression. Smad3-related miRNAs affected tribbles homolog 2 (TRIB2) expression by regulating trib2 promoter activity through the CAGACA box. MiR-206 and miR-140 inhibited lung adenocarcinoma cell proliferation in vitro and in vivo by suppressing p-Smad3/Smad3 and TRIB2. Moreover, lung adenocarcinoma data supported a suppressive role for miR-206/miR-140 and an oncogenic role for TRIB2—patients with higher TRIB2 levels had poorer survival. In summary, miR-206 and miR-140, as tumor suppressors, induced lung adenocarcinoma cell death and inhibited cell proliferation by modifying oncogenic TRIB2 promoter activity through p-Smad3. MiR-206 and miR-140 also suppressed lung adenocarcinoma cell metastasis in vitro and in vivo by regulating EMT-related factors.
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Affiliation(s)
- Yan-Xia Zhang
- Key Laboratory of Tumor Molecular Biology in Binzhou Medical University, Department of Biochemistry and Molecular Biology, Binzhou Medical University, YanTai, ShanDong, P.R.China
| | - Yun-Fei Yan
- Key Laboratory of Tumor Molecular Biology in Binzhou Medical University, Department of Biochemistry and Molecular Biology, Binzhou Medical University, YanTai, ShanDong, P.R.China
| | - Yue-Mei Liu
- Key Laboratory of Tumor Molecular Biology in Binzhou Medical University, Department of Biochemistry and Molecular Biology, Binzhou Medical University, YanTai, ShanDong, P.R.China
| | - You-Jie Li
- Key Laboratory of Tumor Molecular Biology in Binzhou Medical University, Department of Biochemistry and Molecular Biology, Binzhou Medical University, YanTai, ShanDong, P.R.China
| | - Han-Han Zhang
- Key Laboratory of Tumor Molecular Biology in Binzhou Medical University, Department of Biochemistry and Molecular Biology, Binzhou Medical University, YanTai, ShanDong, P.R.China
| | - Min Pang
- Key Laboratory of Tumor Molecular Biology in Binzhou Medical University, Department of Biochemistry and Molecular Biology, Binzhou Medical University, YanTai, ShanDong, P.R.China
| | - Jin-Xia Hu
- Key Laboratory of Tumor Molecular Biology in Binzhou Medical University, Department of Biochemistry and Molecular Biology, Binzhou Medical University, YanTai, ShanDong, P.R.China
| | - Wei Zhao
- Key Laboratory of Tumor Molecular Biology in Binzhou Medical University, Department of Biochemistry and Molecular Biology, Binzhou Medical University, YanTai, ShanDong, P.R.China
| | - Ning Xie
- Department of Chest Surgery, YanTaiShan Hospital, YanTai, ShanDong, P.R.China
| | - Ling Zhou
- Key Laboratory of Tumor Molecular Biology in Binzhou Medical University, Department of Biochemistry and Molecular Biology, Binzhou Medical University, YanTai, ShanDong, P.R.China
| | - Ping-Yu Wang
- Key Laboratory of Tumor Molecular Biology in Binzhou Medical University, Department of Biochemistry and Molecular Biology, Binzhou Medical University, YanTai, ShanDong, P.R.China
| | - Shu-Yang Xie
- Key Laboratory of Tumor Molecular Biology in Binzhou Medical University, Department of Biochemistry and Molecular Biology, Binzhou Medical University, YanTai, ShanDong, P.R.China
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Expression deregulation of mir31 and CXCL12 in two types of oral precancers and cancer: importance in progression of precancer and cancer. Sci Rep 2016; 6:32735. [PMID: 27597234 PMCID: PMC5011738 DOI: 10.1038/srep32735] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Accepted: 08/15/2016] [Indexed: 12/27/2022] Open
Abstract
Oral cancer generally progresses from precancerous lesions such as leukoplakia (LK), lichen planus (LP) and oral submucous fibrosis (OSMF). Since few of these precancers progress to cancers; it is worth to identify biological molecules that may play important roles in progression. Here, expression deregulation of 7 miRNAs (mir204, mir31, mir31*, mir133a, mir7, mir206 and mir1293) and their possible target genes in 23 cancers, 18 LK, 12 LP, 23 OSMF tissues compared to 20 healthy tissues was determined by qPCR method. Expression of mir7, mir31, mir31* and mir1293 was upregulated and that of mir133a, mir204 and mir206 was downregulated in cancer. Expression of most of these miRNAs was also upregulated in LK and LP tissues but not in OSMF. Expression deregulation of some of the target genes was also determined in cancer, LK and LP tissues. Significant upregulation of mir31 and downregulation of its target gene, CXCL12, in cancer, LK and LP tissues suggest their importance in progression of precancer to cancer. Expression upregulation of mir31 was also validated using GEO data sets. Although sample size is low, novelty of this work lies in studying expression deregulation of miRNAs and target genes in oral cancer and three types of precancerous lesions.
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30
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Liang Z, Bian X, Shim H. Downregulation of microRNA-206 promotes invasion and angiogenesis of triple negative breast cancer. Biochem Biophys Res Commun 2016; 477:461-6. [PMID: 27318091 DOI: 10.1016/j.bbrc.2016.06.076] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Accepted: 06/15/2016] [Indexed: 12/31/2022]
Abstract
Triple negative breast tumors don't respond to Tamoxifen and Herceptin, two of the most effective medications for treating breast cancer. Additionally, triple negative breast cancer (TNBC) intrinsically resists or will eventually acquire resistance to chemotherapy. The purpose of this study is to understand better the molecular basis of TNBC as well as develop new therapeutic strategies against it. Here, we analyzed miRNA-206 expression levels in breast cancer cell lines and tissues. In addition, we investigated whether miR-206 mimics inhibited TNBC tumor invasion and angiogenesis. The results showed that miR-206 was downregulated in TNBC compared to non-TNBC cell lines and tissues. Additionally, the decreased levels of miR-206 were inversely consistent with expression levels of VEGF. Furthermore, the forced expression of miR-206 in the mimic-transfected TNBC cells downregulated VEGF, MAPK3, and SOX9 expression levels. The miR-206 mimics inhibited TNBC breast cell invasion and angiogenesis. These findings demonstrate for the first time the involvement of miRNA-206 in TNBC invasion and angiogenesis and suggest that miR-206 may be an efficient agent for therapy of TNBC.
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Affiliation(s)
- Zhongxing Liang
- Department of Radiology, Emory University, Atlanta, GA 30322, USA; Winship Cancer Institute, Emory University, Atlanta, GA 30322, USA.
| | - Xuehai Bian
- Department of Radiology, Emory University, Atlanta, GA 30322, USA; Department of Thyroid Surgery, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Hyunsuk Shim
- Department of Radiology, Emory University, Atlanta, GA 30322, USA; Winship Cancer Institute, Emory University, Atlanta, GA 30322, USA
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31
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Hao W, Luo W, Bai M, Li J, Bai X, Guo J, Wu J, Wang M. MicroRNA-206 Inhibited the Progression of Glioblastoma Through BCL-2. J Mol Neurosci 2016; 60:531-538. [PMID: 27558109 DOI: 10.1007/s12031-016-0824-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2016] [Accepted: 08/17/2016] [Indexed: 12/21/2022]
Abstract
Gliomas are the most common type of brain tumor and have a poor prognosis. MicroRNAs (miRNAs) are a class of small, endogenous, and non-coding RNAs that play crucial roles in cell proliferation, survival, and invasion. Deregulated expression of miR-206 has been investigated in many cancers. However, the role of miR-206 in glioblastoma is still unclear. In the present study, we found that the expression of miR-206 was decreased in cancer tissues compared with normal tissues. However, the expression level of BCL-2 was higher in cancer tissues than that in normal tissues (all p < 0.001). Statistically, the expression level of BCL-2 was inversely correlated with the miR-206. In addition, the overall survival of glioblastoma patients with lower miR-206 expression was significantly shorter than those with high miR-206 expression (p < 0.001). Besides, the expression of miR-206 was also decreased in U87 and U251 cells. In vitro assays showed that ectopic miR-206 expression affected the proliferation, cell cycle, and invasion in U87 and U251 cells. Importantly, we identified BCL-2 as a direct target of miR-206 in U87 and U251 cells using luciferase assay. Overexpression of BCL-2 partially attenuated the miR-206-mediated cell proliferation. In vivo, overexpression of miR-206 suppressed the progression of glioblastoma cells using mice xenograft model. In conclusion, this study suggested that miR-206 could act as a tumor suppressor gene through inhibiting BCL-2 in the development of glioblastoma.
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Affiliation(s)
- Wenjiong Hao
- Department of Neurosurgery, The First Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an, 710061, People's Republic of China.,Department of Neurosurgery, Affiliated Hospital, Medical College of Yan'an University, Yan'an City, Shaanxi, 716000, People's Republic of China
| | - Wei Luo
- Department of Neurosurgery, The Affiliated Hospital of Shaanxi Traditional Chinese Medicine University, Xianyang, 712000, People's Republic of China
| | - Mangmang Bai
- Department of Neurosurgery, Affiliated Hospital, Medical College of Yan'an University, Yan'an City, Shaanxi, 716000, People's Republic of China
| | - Jian Li
- Department of Neurosurgery, Affiliated Hospital, Medical College of Yan'an University, Yan'an City, Shaanxi, 716000, People's Republic of China
| | - Xiaobin Bai
- Department of Neurosurgery, The First Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an, 710061, People's Republic of China
| | - Jie Guo
- Department of Neurosurgery, Affiliated Hospital, Medical College of Yan'an University, Yan'an City, Shaanxi, 716000, People's Republic of China
| | - Jinsong Wu
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, 200040, People's Republic of China
| | - Maode Wang
- Department of Neurosurgery, The First Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an, 710061, People's Republic of China.
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Chen X, Tong ZK, Zhou JY, Yao YK, Zhang SM, Zhou JY. MicroRNA-206 inhibits the viability and migration of human lung adenocarcinoma cells partly by targeting MET. Oncol Lett 2016; 12:1171-1177. [PMID: 27446414 DOI: 10.3892/ol.2016.4735] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Accepted: 05/13/2016] [Indexed: 01/21/2023] Open
Abstract
MicroRNA (miRNA)-based targeting in cancer has emerged as a potential therapeutic strategy. miR-206 has recently been implicated in cancer. However, the role and molecular mechanism of miR-206 in lung adenocarcinoma are still unclear. The present study revealed that miR-206 was downregulated in human lung adenocarcinoma tissues. Overexpression of miR-206 in human lung adenocarcinoma-derived cells significantly inhibited cell viability and migration. Further experiments indicated that the overexpression of miR-206 decreased the expression of MET at the messenger RNA and protein levels via direct targeting of MET in a 3'-untranslated region-dependent manner. The knockdown of MET by small interfering RNA partly led to a phenocopy effect of miR-206. In conclusion, the present study identified miR-206 as a potential tumor suppressor of lung adenocarcinoma that exerts its functions, in part, by negative regulation of MET.
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Affiliation(s)
- Xi Chen
- Department of Respiratory Diseases, Thoracic Disease Diagnosis and Treatment Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, P.R. China
| | - Zhong-Kai Tong
- Department of Respiratory Diseases, Thoracic Disease Diagnosis and Treatment Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, P.R. China
| | - Jian-Ya Zhou
- Department of Respiratory Diseases, Thoracic Disease Diagnosis and Treatment Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, P.R. China
| | - Ya-Ke Yao
- Department of Respiratory Diseases, Thoracic Disease Diagnosis and Treatment Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, P.R. China
| | - Shu-Meng Zhang
- Department of Respiratory Diseases, Thoracic Disease Diagnosis and Treatment Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, P.R. China
| | - Jian-Ying Zhou
- Department of Respiratory Diseases, Thoracic Disease Diagnosis and Treatment Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, P.R. China
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You J, Chang R, Liu B, Zu L, Zhou Q. Nm23-H1 was involved in regulation of KAI1 expression in high-metastatic lung cancer cells L9981. J Thorac Dis 2016; 8:1217-26. [PMID: 27293840 DOI: 10.21037/jtd.2016.04.59] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND The tetraspanin KAI1/CD82 was identified as a tumor metastasis suppressor that down-regulated in malignant progression of lung cancer. However, the underlying mechanism of anti-metastasis role of KAI1 in lung cancer is hardly known. In this paper, we sought to study the function and regulatory mechanism of KAI1 in high metastasis lung cancer cell line. METHODS KAI1 expression was detected in high/low metastatic large lung cancer cell line L9981/NL9980 by quantitative real-time polymerase chain reaction (qRT-PCR). The tumor suppressor function of KAI1 was determined by wound healing assay after over-expression or knockdown of KAI1 in L9981 or NL9980 cells. Invasion assay was performed to detect the invasion ability of L9981 by transfection of KAI1. The effect of tumor suppressor p53 on KAI1 expression was measured by western blot and luciferase assay. Then the regulation of KAI1 due to over-expression of metastasis suppressor nm23-H1 was monitored by qRT-PCR, western blot and reporter gene assay. The progression of L9981 cells after p53 and nm23-H1 expression was detected by invasion assay. Also, methylation status of KAI1 promoter in NL9980 and L9981 cells were examined by bisulfite sequencing and methylation-specific PCR. RESULTS We found that KAI1 is down-regulated in high metastatic L9981 cells compare with NL9980 cells. The migration and invasion of L9981 cells were remarkably suppressed in vitro by KAI1 transfection. The migration ability of NL9980 was enhanced by inhibition of KAI1. Furthermore, KAI1 expression was induced after over-expression of p53 or nm23-H1, while cell invasion was inhibited in L9981 cells. The results of reporter analysis indicated that KAI1 promoter region between -922 to -846 could response to nm23-H1. In addition, we discovered only slight methylation of KAI1 promoter, which showed that loss expression of KAI1 in L9981 cells may not due to promoter methylation. CONCLUSIONS The results suggested that nm23-H1 was involved in the KAI1-regulated inhibition of metastasis in lung cancer cells. More insights into the relationship between KAI1 and other metastasis suppressors will pave the way for the elucidation of anti-metastasis mechanism in lung cancer.
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Affiliation(s)
- Jiacong You
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Rui Chang
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Bin Liu
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Lingling Zu
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Qinghua Zhou
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General Hospital, Tianjin 300052, China
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Regulation of the T-box transcription factor Tbx3 by the tumour suppressor microRNA-206 in breast cancer. Br J Cancer 2016; 114:1125-34. [PMID: 27100732 PMCID: PMC4865973 DOI: 10.1038/bjc.2016.73] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Revised: 02/18/2016] [Accepted: 02/23/2016] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND The Tbx3 transcription factor is over-expressed in breast cancer, where it has been implicated in proliferation, migration and regulation of the cancer stem cell population. The mechanisms that regulate Tbx3 expression in cancer have not been fully explored. In this study, we demonstrate that Tbx3 is repressed by the tumour suppressor miR-206 in breast cancer cells. METHODS Bioinformatics prediction programmes and luciferase reporter assays were used to demonstrate that miR-206 negatively regulates Tbx3. We examined the impact of miR-206 on Tbx3 expression in breast cancer cells using miR-206 mimic and inhibitor. Gene/protein expression was examined by quantitative reverse-transcription-PCR and immunoblotting. The effects of miR-206 and Tbx3 on apoptosis, proliferation, invasion and cancer stem cell population was investigated by cell-death detection, colony formation, 3D-Matrigel and tumorsphere assays. RESULTS In this study, we examined the regulation of Tbx3 by miR-206. We demonstrate that Tbx3 is directly repressed by miR-206, and that this repression of Tbx3 is necessary for miR-206 to inhibit breast tumour cell proliferation and invasion, and decrease the cancer stem cell population. Moreover, Tbx3 and miR-206 expression are inversely correlated in human breast cancer. Kaplan-Meier analysis indicates that patients exhibiting a combination of high Tbx3 and low miR-206 expression have a lower probability of survival when compared with patients with low Tbx3 and high miR-206 expression. These studies uncover a novel mechanism of Tbx3 regulation and identify a new target of the tumour suppressor miR-206. CONCLUSIONS The present study identified Tbx3 as a novel target of tumour suppressor miR-206 and characterised the miR-206/Tbx3 signalling pathway, which is involved in proliferation, invasion and maintenance of the cancer stem cell population in breast cancer cells. Our results suggest that restoration of miR-206 in Tbx3-positive breast cancer could be exploited for therapeutic benefit.
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Chen QY, Jiao DM, Yan L, Wu YQ, Hu HZ, Song J, Yan J, Wu LJ, Xu LQ, Shi JG. Comprehensive gene and microRNA expression profiling reveals miR-206 inhibits MET in lung cancer metastasis. MOLECULAR BIOSYSTEMS 2016; 11:2290-302. [PMID: 26075299 DOI: 10.1039/c4mb00734d] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
MiRNAs associated with the metastasis of lung cancer remain largely unexplored. In this study, gene and miRNA expression profiling were performed to analyze the global expression of mRNAs and miRNAs in human high- and low-metastatic lung cancer cell strains. By developing an integrated bioinformatics analysis, six miRNAs (miR-424-3p, miR-450b-5p, miR-335-5p, miR-34a-5p, miR-302b-3p and miR-206) showed higher target gene degrees in the miRNA-gene network and might be potential metastasis-related miRNAs. Using the qRT-PCR method, the six miRNAs were further confirmed to show a significant expression difference between human lung cancer and normal tissue samples. Since miR-206 showed lower expression both in lung cancer tissues and cell lines, it was used as an example for further functional verification. The wound healing assay and transwell invasion assay showed that miR-206 mimics significantly inhibited the cell migration and invasion of the high-metastatic lung cancer 95D cell strain. One of its predicted targets in our miRNA-gene network, MET, was also obviously decreased at the protein level when miR-206 was overexpressed. Instead, miR-206 inhibitors increased MET protein expression, cell migration and invasion of the low-metastatic lung cancer 95C cell strain. Meanwhile, the luciferase assay showed that MET was a direct target of miR-206. Furthermore, MET gene silence showed a similar anti-migration and anti-invasion effect with miR-206 mimics in 95D cells and could partially attenuate the migration- and invasion-promoting effect of miR-206 inhibitors in 95C cells, suggesting that miR-206 targets MET in lung cancer metastasis. Finally, we also demonstrated that miR-206 can significantly inhibit lung cancer proliferation and metastasis in mouse models. In conclusion, our study provided a miRNA-gene regulatory network in lung cancer metastasis and further demonstrated the roles of miR-206 and MET in this process, which enhances the understanding of the regulatory mechanism in lung cancer metastasis.
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Affiliation(s)
- Qing-yong Chen
- Department of Respiratory Disease, The 117th Hospital of PLA, Hangzhou, Zhejiang 310013, P. R. China.
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36
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Exosomal miRNAs as biomarkers of recurrent lung cancer. Tumour Biol 2016; 37:10703-14. [PMID: 26867772 DOI: 10.1007/s13277-016-4939-8] [Citation(s) in RCA: 91] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2015] [Accepted: 01/29/2016] [Indexed: 12/15/2022] Open
Abstract
Prognosis of lung cancer still remains grim largely due to recurrence and aggressive metastasis of the disease. In this study, we examined the potential of exosomal miRNAs as biomarkers of recurrent lung cancer. Initially, in vitro miRNA profiles of normal lung (Beas-2b) and lung cancer (H1299) cells and of exosomes isolated from conditioned media were determined. In vivo study involved establishing subcutaneous primary and recurrent lung cancer xenografts in nude mouse model and examining tumor and serum exosomal miRNA alteration in secondary/recurrent lung tumors. A total of 77 miRNAs were observed to be significantly modulated in the H1299 cells (47 miRNA upregulated and 30 downregulated) compared to the Beas-2b cells. The exosomes isolated from conditioned media indicated several miRNAs which were in agreement with cells of origin. A similarity was also observed between miRNAs from serum exosomes and tumors, indicating their origin from the lung tumors. Two miRNAs, miR-21 and miR-155, were found to be significantly upregulated in recurrent tumors compared to primary tumors. These miRNAs were also upregulated in serum exosomes of recurrent tumor-bearing animals versus non-tumor- or primary tumor-bearing animals. Increased expression of the recurrent disease markers were also observed in recurrent tumors compared with primary tumors. Serum exosomes from recurrent tumor mice mirrored its tumor profile in expressing higher levels of these proteins compared with exosomes from primary tumor mice. Our data suggest that exosomal miRNA signatures may be a true representation of a pathological profile of lung cancer; thus, miRNAs could serve as promising biomarkers for non-invasive diagnosis of the disease.
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Wang Y, Chen J, Lin Z, Cao J, Huang H, Jiang Y, He H, Yang L, Ren N, Liu G. Role of deregulated microRNAs in non-small cell lung cancer progression using fresh-frozen and formalin-fixed, paraffin-embedded samples. Oncol Lett 2015; 11:801-808. [PMID: 26870288 DOI: 10.3892/ol.2015.3976] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2014] [Accepted: 03/02/2015] [Indexed: 01/20/2023] Open
Abstract
Non-small cell lung cancer (NSCLC) is responsible for the highest number of cancer-associated mortalities worldwide, and the five-year survival rate is <15% following the initial diagnosis. MicroRNAs (miRNAs) serve important functions in a number of human diseases, including cancer. The present study investigated the expression status, clinical relevance and functional role of miRNA in NSCLC. miRNA expression profiling was performed in lung adenocarcinoma and adjacent unaffected lung tissues using 47 groups of fresh-frozen (FF) and 45 of formalin-fixed, paraffin-embedded (FFPE) samples from 11 pulmonary bulla. miR-21, -30e, -363 and -623 were further examined for differential expression in two independent cohorts. Other miRNAs, including miR-5100 and miR-650, were upregulated, while miR-10a and -26b were downregulated in FF NSCLC tissues. The associations between these miRNAs and their clinicopathological features were also investigated. miR-363, -10a and -145 were associated with lymph node status (P=0.002, 0.005 and 0.007, respectively) and miR-650 and -145 were associated with differentiation (P=0.01 and 0.05, respectively). No associations were identified for the other miRNAs examined. In the FFPE NSCLC samples, miR-30e-5p correlated with the differentiation of the tissue (P=0.011). The present study indicates that these miRNAs may be appropriate candidates for molecular diagnostic and prognostic markers in NSCLC.
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Affiliation(s)
- Yahong Wang
- Clinical Research Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524001, P.R. China
| | - Jie Chen
- Department of Cardiothoracic Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524001, P.R. China
| | - Ziying Lin
- Clinical Research Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524001, P.R. China
| | - Jun Cao
- Pathological Diagnosis and Research Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524001, P.R. China
| | - Haili Huang
- Clinical Research Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524001, P.R. China
| | - Yun Jiang
- Clinical Research Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524001, P.R. China
| | - Huijuan He
- Clinical Research Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524001, P.R. China
| | - Lawei Yang
- Clinical Research Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524001, P.R. China
| | - Nina Ren
- Clinical Research Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524001, P.R. China
| | - Gang Liu
- Clinical Research Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524001, P.R. China
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Role of Exosomal Noncoding RNAs in Lung Carcinogenesis. BIOMED RESEARCH INTERNATIONAL 2015; 2015:125807. [PMID: 26583084 PMCID: PMC4637011 DOI: 10.1155/2015/125807] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Revised: 07/05/2015] [Accepted: 07/16/2015] [Indexed: 12/28/2022]
Abstract
Lung cancer is the major cause of cancer death worldwide. Novel, recently discovered classes of noncoding RNAs (ncRNAs) have diverse functional and regulatory activities and increasing evidence suggests crucial roles for deregulated ncRNAs in the onset and progression of cancer, including lung cancer. Exosomes are small extracellular membrane vesicles of endocytic origin that are released by many cells and are found in most body fluids. Tumor-derived exosomes mediate tumorigenesis by facilitating tumor growth and metastasis. MicroRNAs (miRNAs) are a subclass of ncRNAs that are present in exosomes. miRNAs are taken up by neighboring or distant cells and modulate various functions of recipient cells. Here, we review exosome-derived ncRNAs with a focus on miRNAs and their role in lung cancer biology.
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Sharma S, Umar S, Centala A, Eghbali M. Role of miR206 in genistein-induced rescue of pulmonary hypertension in monocrotaline model. J Appl Physiol (1985) 2015; 119:1374-82. [PMID: 26472874 DOI: 10.1152/japplphysiol.00699.2014] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2014] [Accepted: 10/03/2015] [Indexed: 11/22/2022] Open
Abstract
Pulmonary hypertension (PH) is a progressive lung disease associated with proliferation of smooth muscle cells and constriction of lung microvasculature, leading to increased pulmonary arterial pressure, right ventricular failure, and death. We have previously shown that genistein rescues preexisting established PH by significantly improving lung and heart function. (Matori H, Umar S, Nadadur RD, Sharma S, Partow-Navid R, Afkhami M, Amjedi M, Eghbali M. Hypertension 60: 425-430, 2012). Here, we have examined the role of microRNAs (miRs) in the rescue action of genistein in monocrotaline (MCT)-induced PH in rats. Our miR microarray analysis on the lung samples from control, PH, and genistein-rescue group revealed that miR206, which was robustly upregulated to ∼11-fold by PH, was completely normalized to control levels by genistein treatment. Next, we examined whether knockdown of miR206 could reverse preexisting established PH. PH was induced in male rats by 60 mg/kg of MCT, and rats received three intratracheal doses of either miR206 antagomir (10 mg/kg body wt) or scrambled miR control at days 17, 21, and 26. Knockdown of miR206 resulted in significant improvement in the cardiopulmonary function, as right ventricular pressure was significantly reduced to 38.6 ± 3.61 mmHg from 61.2 ± 5.4 mmHg in PH, and right ventricular hypertrophy index was decreased to 0.35 ± 0.04 from 0.59 ± 0.037 in PH. Knockdown of miR206 reversed PH-induced pulmonary vascular remodeling in vivo and was associated with restoration of PH-induced loss of capillaries in the lungs and induction of vascular endothelial growth factor A expression. In conclusion, miR206 antagomir therapy improves cardiopulmonary function and structure and rescues preexisting severe PH in MCT rat model possibly by stimulating angiogenesis in the lung.
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Affiliation(s)
- Salil Sharma
- Department of Anesthesiology, Division of Molecular Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California; and
| | - Soban Umar
- Department of Anesthesiology, Division of Molecular Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California; and
| | - Alexander Centala
- Department of Anesthesiology, Division of Molecular Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California; and
| | - Mansoureh Eghbali
- Department of Anesthesiology, Division of Molecular Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California; and Cardiovascular Research Laboratories, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California
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Mitchelson KR, Qin WY. Roles of the canonical myomiRs miR-1, -133 and -206 in cell development and disease. World J Biol Chem 2015; 6:162-208. [PMID: 26322174 PMCID: PMC4549760 DOI: 10.4331/wjbc.v6.i3.162] [Citation(s) in RCA: 114] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2014] [Revised: 03/13/2015] [Accepted: 05/28/2015] [Indexed: 02/05/2023] Open
Abstract
MicroRNAs are small non-coding RNAs that participate in different biological processes, providing subtle combinational regulation of cellular pathways, often by regulating components of signalling pathways. Aberrant expression of miRNAs is an important factor in the development and progression of disease. The canonical myomiRs (miR-1, -133 and -206) are central to the development and health of mammalian skeletal and cardiac muscles, but new findings show they have regulatory roles in the development of other mammalian non-muscle tissues, including nerve, brain structures, adipose and some specialised immunological cells. Moreover, the deregulation of myomiR expression is associated with a variety of different cancers, where typically they have tumor suppressor functions, although examples of an oncogenic role illustrate their diverse function in different cell environments. This review examines the involvement of the related myomiRs at the crossroads between cell development/tissue regeneration/tissue inflammation responses, and cancer development.
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41
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Tang Y, Zhang Y, Chen Y, Xiang Y, Xie Y. Role of the microRNA, miR-206, and its target PIK3C2α in endothelial progenitor cell function – potential link with coronary artery disease. FEBS J 2015; 282:3758-72. [PMID: 26175229 DOI: 10.1111/febs.13372] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Revised: 07/06/2015] [Accepted: 07/08/2015] [Indexed: 01/07/2023]
Abstract
Coronary artery disease is a major cause of morbidity and mortality worldwide. Impaired endothelial function and integrity are major contributory factors to coronary artery disease. MicroRNAs have been proposed to play an important role in coronary artery disease pathogenesis. In the present study, the expression of miR-206 was found to be significantly upregulated in peripheral blood endothelial progenitor cells from patients with coronary artery disease compared to healthy donors. MiR-206 was found to regulate endothelial progenitor cell activities by targeting the protein kinase PIK3C2α, which showed decreased expression in coronary artery disease endothelial progenitor cells. Knockdown of miR-206 in coronary artery disease endothelial progenitor cells rescued their angiogenic and vasculogenic abilities both in vitro and in vivo in a mouse ischemic hindlimb model. Furthermore, knockdown of miR-206 activated not only PIK3C2α, but also the angiogenic signal modulators Akt and endothelial nitric oxide synthase. It is therefore proposed that repression of the phosphoinositide 3-kinase/Akt/endothelial nitric oxide synthase signal transduction pathway by miR-206 downregulates angiogenesis contributing to the pathophysiology of coronary artery disease.
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Affiliation(s)
- Yong Tang
- Department of Cardiology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, China
| | - Yachen Zhang
- Department of Cardiology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, China
| | - Yu Chen
- Department of Cardiology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, China
| | - Yin Xiang
- Department of Cardiology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, China
| | - Yuquan Xie
- Department of Cardiology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, China
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42
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Sun C, Liu Z, Li S, Yang C, Xue R, Xi Y, Wang L, Wang S, He Q, Huang J, Xie S, Jiang W, Li D. Down-regulation of c-Met and Bcl2 by microRNA-206, activates apoptosis, and inhibits tumor cell proliferation, migration and colony formation. Oncotarget 2015; 6:25533-74. [PMID: 26325180 PMCID: PMC4694850 DOI: 10.18632/oncotarget.4575] [Citation(s) in RCA: 112] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Accepted: 07/13/2015] [Indexed: 11/25/2022] Open
Abstract
Hsa-miRNA-206 (miR-206), highly expressed in skeletal muscle, has recently been discovered to have anticancer properties in different tissues. However, the role of miR-206 on lung cancer is still ambiguous. In this study, we investigated the role of miR-206 on the development of lung cancer. The results indicated that miR-206 expression was suppressed in lung cancer tissues and very low levels were found in non-small cell lung cancer (NSCLS) cell liness. Transient transfection of miR-206 into cultured A549 and SK-MES-1 cells led to significant decrease in cell growth, migration, invasion and colony formation, and promoted cell apoptosis. Using bioinformatics, we identified putative miR-206 binding sites within the 3′-untranslated region (3′-UTR) of the human c-Met and Bcl2 mRNA. The expression of c-Met and Bcl2 proteins were shown to be down-regulated after treated with miR-206 by subsequent Western blot and qRT-PCR analysis. Conversely, up-regulation of c-Met and Bcl2 were confirmed in tissue samples of human lung cancer, with its level inversely correlated with miR-206 expression. In addition, miR-206 also decreased the gene expression of MMP-9, CCND1 and CCND2 while increased the gene expression of p57 (Kip2) in A549 and SK-MES-1 cells. Taken together, our results demonstrated that miR-206 suppressed c-Met and Bcl2 expression in NSCLS and could function as a potent tumor suppressor in c-Met/Bcl2-over expressing tumors. Inhibition of miR-206 function could contribute to aberrant cell proliferation, migration, invasion and apoptosis, leading to NSCLS development.
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Affiliation(s)
- Chengcao Sun
- Department of Occupational and Environmental Health, School of Public Health, Wuhan University, Wuhan 430071, P. R. China
- Institute of Global Health, Wuhan University, Wuhan 430071, P. R. China
| | - Zhidong Liu
- Department of Thoracic Surgery, Beijing Chest Hospital, Capital Medical University, Beijing 101149, P.R. China
| | - Shujun Li
- Department of Occupational and Environmental Health, School of Public Health, Wuhan University, Wuhan 430071, P. R. China
- Wuhan Hospital for the Prevention and Treatment of Occupational Diseases, Wuhan 430071, P. R. China
| | - Cuili Yang
- Department of Occupational and Environmental Health, School of Public Health, Wuhan University, Wuhan 430071, P. R. China
| | - Ruilin Xue
- Department of Occupational and Environmental Health, School of Public Health, Wuhan University, Wuhan 430071, P. R. China
| | - Yongyong Xi
- Department of Occupational and Environmental Health, School of Public Health, Wuhan University, Wuhan 430071, P. R. China
| | - Liang Wang
- Department of Occupational and Environmental Health, School of Public Health, Wuhan University, Wuhan 430071, P. R. China
| | - Suqing Wang
- Department of Occupational and Environmental Health, School of Public Health, Wuhan University, Wuhan 430071, P. R. China
| | - Qiqiang He
- Department of Occupational and Environmental Health, School of Public Health, Wuhan University, Wuhan 430071, P. R. China
| | - Jie Huang
- Department of Thoracic Surgery, People's Hospital of Wuhan University, Wuhan 430000, P. R. China
| | - Songping Xie
- Department of Thoracic Surgery, People's Hospital of Wuhan University, Wuhan 430000, P. R. China
| | - Wenyang Jiang
- Department of Thoracic Surgery, People's Hospital of Wuhan University, Wuhan 430000, P. R. China
| | - Dejia Li
- Department of Occupational and Environmental Health, School of Public Health, Wuhan University, Wuhan 430071, P. R. China
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ZHANG WENLONG, LV WEI, SUN SUOZHU, WU XIZHAO, ZHANG JIANHUA. miR-206 inhibits metastasis-relevant traits by degrading MRTF-A in anaplastic thyroid cancer. Int J Oncol 2015; 47:133-42. [DOI: 10.3892/ijo.2015.2993] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Accepted: 03/23/2015] [Indexed: 11/05/2022] Open
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Leinonen HM, Kansanen E, Pölönen P, Heinäniemi M, Levonen AL. Role of the Keap1-Nrf2 pathway in cancer. Adv Cancer Res 2015; 122:281-320. [PMID: 24974185 DOI: 10.1016/b978-0-12-420117-0.00008-6] [Citation(s) in RCA: 125] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The Kelch-like ECH-associated protein 1 (Keap1)-nuclear factor E2-related factor 2 (Nrf2) pathway is one of the major signaling cascades involved in cell defense and survival against endogenous and exogenous stress. While Nrf2 and its target genes provide protection against various age-related diseases including tumorigenesis, constitutively active Nrf2 in cancer cells increases the expression of cytoprotective genes and, consequently, enhances proliferation via metabolic reprogramming and inhibition of apoptosis. Herein, we review the current understanding of the regulation of Nrf2 in normal cells as well as its dual role in cancer. Furthermore, the mechanisms of Nrf2 dysregulation in cancer, consequences of unchecked Nrf2 activity, and therapies targeting the Keap1-Nrf2 system are discussed.
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Affiliation(s)
- Hanna M Leinonen
- Department of Biotechnology and Molecular Medicine, A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, P.O. Box 1627, Kuopio, Finland
| | - Emilia Kansanen
- Department of Biotechnology and Molecular Medicine, A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, P.O. Box 1627, Kuopio, Finland
| | - Petri Pölönen
- Department of Biotechnology and Molecular Medicine, A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, P.O. Box 1627, Kuopio, Finland; Institute of Biomedicine, School of Medicine, University of Eastern Finland, P.O. Box 1627, Kuopio, Finland
| | - Merja Heinäniemi
- Department of Biotechnology and Molecular Medicine, A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, P.O. Box 1627, Kuopio, Finland; Institute of Biomedicine, School of Medicine, University of Eastern Finland, P.O. Box 1627, Kuopio, Finland
| | - Anna-Liisa Levonen
- Department of Biotechnology and Molecular Medicine, A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, P.O. Box 1627, Kuopio, Finland.
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45
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Zhang L, Xia L, Zhao L, Chen Z, Shang X, Xin J, Liu M, Guo X, Wu K, Pan Y, Fan D. Activation of PAX3-MET pathways due to miR-206 loss promotes gastric cancer metastasis. Carcinogenesis 2015; 36:390-9. [PMID: 25653235 DOI: 10.1093/carcin/bgv009] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
MicroRNAs (miRNAs) are thought to have an important role in tumor metastasis by regulating diverse cellular pathways. Here, we describe the function and regulation network of miR-206 in gastric cancer (GC) metastasis. MiR-206 expression was downregulated in GC cells especially in high metastatic potential cells and was also significantly decreased in metastatic lesions compared with their corresponding primary tumor samples. Both gain- and loss-of-function studies confirmed that miR-206 significantly suppressed GC cell invasion and metastasis both in vitro and in vivo. Mechanistically, paired box gene 3 (PAX3) was identified as a functional target of miR-206 in GC cells. MiR-206 inhibited GC metastasis by negatively regulating expression of PAX3. In addition, PAX3 expression was markedly higher in GC tissues than in adjacent non-cancerous tissues. GC patients with positive PAX3 expression had shorter overall survival times. Transwell assays and in vivo metastasis assays demonstrated that overexpression of PAX3 significantly promoted the invasiveness and pulmonary metastasis of GC cells. On the other hand, downregulation of PAX3 markedly reduced cell metastatic potential. Mechanistic investigations indicated that prometastasis function of PAX3 was mediated by upregulating downstream target MET. Moreover, we found that levels of PAX3 and MET were positively correlated in matched human GC specimens, and their coexpression was associated with poor prognoses. In conclusion, our results reveal that miR-206-PAX3-MET signaling is critical to GC metastasis. Targeting the pathway described here may open new therapeutic prospects to restrict the metastatic potential of GC.
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Affiliation(s)
- Lin Zhang
- State Key Laboratory of Cancer Biology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, 17 Changle Western Road, Xi'an, Shaanxi Province 710032, People's Republic of China, Medical Clinic of The Chinese People's Liberation Army General Political Department, 21 North Andeli Road, Beijing 100120, People's Republic of China
| | - Limin Xia
- State Key Laboratory of Cancer Biology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, 17 Changle Western Road, Xi'an, Shaanxi Province 710032, People's Republic of China
| | - Lina Zhao
- Department of Radiation Oncology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, 17 Changle Western Road, Xi'an, Shaanxi Province 710032, People's Republic of China and
| | - Zhangqian Chen
- State Key Laboratory of Cancer Biology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, 17 Changle Western Road, Xi'an, Shaanxi Province 710032, People's Republic of China
| | - Xin Shang
- State Key Laboratory of Cancer Biology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, 17 Changle Western Road, Xi'an, Shaanxi Province 710032, People's Republic of China
| | - Jing Xin
- Engineering Research Center of Molecular and Neuro Imaging of Ministry of Education, School of Life Science and Technology, Xidian University, 2 South Taibai Road, Xi'an, Shaanxi Province 710071, People's Republic of China
| | - Muhan Liu
- Engineering Research Center of Molecular and Neuro Imaging of Ministry of Education, School of Life Science and Technology, Xidian University, 2 South Taibai Road, Xi'an, Shaanxi Province 710071, People's Republic of China
| | - Xuegang Guo
- State Key Laboratory of Cancer Biology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, 17 Changle Western Road, Xi'an, Shaanxi Province 710032, People's Republic of China
| | - Kaichun Wu
- State Key Laboratory of Cancer Biology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, 17 Changle Western Road, Xi'an, Shaanxi Province 710032, People's Republic of China
| | - Yanglin Pan
- State Key Laboratory of Cancer Biology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, 17 Changle Western Road, Xi'an, Shaanxi Province 710032, People's Republic of China,
| | - Daiming Fan
- State Key Laboratory of Cancer Biology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, 17 Changle Western Road, Xi'an, Shaanxi Province 710032, People's Republic of China,
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Varendi K, Mätlik K, Andressoo JO. From microRNA target validation to therapy: lessons learned from studies on BDNF. Cell Mol Life Sci 2015; 72:1779-94. [PMID: 25601223 PMCID: PMC4412727 DOI: 10.1007/s00018-015-1836-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2014] [Revised: 12/22/2014] [Accepted: 01/08/2015] [Indexed: 12/22/2022]
Abstract
During the past decade, the identification of microRNA (miR) targets has become common laboratory practice, and various strategies are now used to detect interactions between miRs and their mRNA targets. However, the current lack of a standardized identification process often leads to incomplete and/or conflicting results. Here, we review the problems most commonly encountered when verifying miR–mRNA interactions, and we propose a workflow for future studies. To illustrate the challenges faced when validating a miR target, we discuss studies in which the regulation of brain-derived neurotrophic factor by miRs was investigated, and we highlight several controversies that emerged from these studies. Finally, we discuss the therapeutic use of miR inhibitors, and we discuss several questions that should be addressed before proceeding to preclinical testing.
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Affiliation(s)
- Kärt Varendi
- Institute of Biotechnology, University of Helsinki, 00014, Helsinki, Finland,
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47
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Wang XW, Xi XQ, Wu J, Wan YY, Hui HX, Cao XF. MicroRNA-206 attenuates tumor proliferation and migration involving the downregulation of NOTCH3 in colorectal cancer. Oncol Rep 2015; 33:1402-10. [PMID: 25607234 DOI: 10.3892/or.2015.3731] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2014] [Accepted: 12/19/2014] [Indexed: 01/11/2023] Open
Abstract
Colorectal cancer (CRC) is the most common cancer diagnosed worldwide, and the development of metastases is a major cause of mortality. Accumulating evidence suggests that microRNAs are important in carcinogenesis by affecting the expression of genes that regulate cancer progression. A number of studies have shown that miR-206 is frequently downregulated in many human malignancies, including CRC, and is associated with a more malignant phenotype. Previous studies involving HeLa and C2C12 cells have validated the inhibitory mechanism of miR-206 via NOTCH3 targeting. However, whether or not the interplay between miR-206 and NOTCH3 also occurs in CRC is unknown. Therefore, we investigated the tumor suppressive and metastatic effects of miR-206 and its target, NOTCH3, in CRC. Based on the inverse association between the expression of miR-206 and NOTCH3 in CRC tissues, miR-206 mimics were transiently transfected into the SW480 (and its metastatic strain) and SW620 colon cancer cell lines. Upregulation of miR-206 inhibited cancer cell prolife-ration and migration, blocked the cell cycle, and activated apoptosis. The tumor suppressive capacity of miR-206 had a similar effect on CRC cells, although with a different metastatic potential, and may be explained by direct NOTCH3 signaling inhibition and indirect cross-talk with other signaling pathways involving CDH2 and MMP-9. These results support miR-206 as a tumor suppressor in CRC and suggest a potential therapeutic target for clinical intervention.
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Affiliation(s)
- Xiao-Wei Wang
- Department of Medical Oncology, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, Jiangsu 223300, P.R. China
| | - Xue-Qin Xi
- Department of Clinical Laboratory, Huai'an Hospital Affiliated to Xuzhou Medical College, Huai'an, Jiangsu 223002, P.R. China
| | - Jian Wu
- Department of Pathology, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, Jiangsu 223300, P.R. China
| | - Yi-Yuan Wan
- Department of Medical Oncology, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, Jiangsu 223300, P.R. China
| | - Hong-Xia Hui
- Department of Medical Oncology, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, Jiangsu 223300, P.R. China
| | - Xiu-Feng Cao
- Department of Surgical Oncology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu 210000, P.R. China
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48
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Shi H, Han J, Yue S, Zhang T, Zhu W, Zhang D. Prognostic significance of combined microRNA-206 and CyclinD2 in gastric cancer patients after curative surgery: A retrospective cohort study. Biomed Pharmacother 2015; 71:210-5. [PMID: 25960238 DOI: 10.1016/j.biopha.2014.12.037] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2014] [Accepted: 12/30/2014] [Indexed: 12/22/2022] Open
Abstract
AIM To investigate associations of microRNA (miR)-206 and CyclinD2 (CCND2) expression, alone or in combination, with clinicopathological characteristics and patients' prognosis in gastric cancer. METHODS MiR-206 and CCND2 mRNA expression levels were detected by real-time quantitative RT-PCR in 220 self-pairs of gastric cancer and adjacent non-cancerous tissues. RESULTS Compared with the adjacent non-cancerous tissues, the expression levels of miR-206 and CCND2 mRNA were respectively reduced and elevated in gastric cancer tissues dramatically (both P<0.001). Notably, the expression levels of miR-206 in gastric cancer tissues were negatively correlated with those of CCND2 mRNA significantly (r=-0.463, P<0.001). Then, statistical analysis showed that low miR-206 expression and high CCND2 expression, alone or in combination, were all significantly associated with great depth of invasion, positive lymph node and distant metastases, and advanced TNM stage of human gastric cancer (all P<0.05). After that, we also found that the overall survivals of the patients with low miR-206 expression and high CCND2 expression were respectively shorter than those with high miR-206 expression and low CCND2 expression. More interestingly, miR-206-low/CCND2-high expression was associated with a significantly worst overall survival of all miR-206/CCND2 groups (P<0.001). Furthermore, multivariate analysis identified miR-206 and/or CCND2 expression as independent prognostic factors for overall survival in patients with gastric cancer. CONCLUSION Our data provide evidence that the dysregulation of miR-206-CCND2 axis may contribute to the aggressive progression and poor prognosis of human gastric cancer in clinical settings. Combined detection of their expression might be particularly helpful for surveillance of disease progression and treatment stratification.
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Affiliation(s)
- Huichang Shi
- Department of Oncology, First Hospital of Huai'an, Nanjing Medical University, Huai'an 223300, China
| | - Jun Han
- Department of Oncology, First Hospital of Huai'an, Nanjing Medical University, Huai'an 223300, China
| | - Shun Yue
- Department of Oncology, First Hospital of Huai'an, Nanjing Medical University, Huai'an 223300, China
| | - Tiecheng Zhang
- Department of Oncology, First Hospital of Huai'an, Nanjing Medical University, Huai'an 223300, China
| | - Weiguo Zhu
- Department of Oncology, First Hospital of Huai'an, Nanjing Medical University, Huai'an 223300, China
| | - Dahong Zhang
- Department of Oncology, First Hospital of Huai'an, Nanjing Medical University, Huai'an 223300, China.
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49
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Yang X, Zhang C, Guo T, Feng Y, Liu Q, Chen Y, Zhang Q. Reduced expression of microRNA‑206 regulates cell proliferation via cyclinD2 in gliomas. Mol Med Rep 2015; 11:3295-300. [PMID: 25572712 PMCID: PMC4368077 DOI: 10.3892/mmr.2015.3171] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2014] [Accepted: 12/12/2014] [Indexed: 11/07/2022] Open
Abstract
MicroRNAs are short single-stranded non-coding RNA molecules that function as regulators of tumor progression, including regulation of glioblastoma multiforme, which is a World Health Organization grade IV glioma. Based on the results of a microRNA microarray, which included 198 patients with glioma from the Chinese Glioma Genome Atlas data set, it was observed that microRNA-206 (miR-206) was downregulated in high-grade (grades III and IV) gliomas compared with grade II gliomas. In addition, high expression of miR-206 was associated with longer overall survival time in glioma patients. The present study aimed to investigate the biological functions of miR-206 in glioma progression in vitro using the LN229 glioma cell line. Cell proliferation was observed to be inhibited subsequent to transfection with miR-206. It was suggested that miR-206 induced cell cycle G1/S phase arrest by suppressing the expression of cyclinD2. The results of the present study concluded that miR-206 inhibits glioma progression via the regulation of cyclinD2 and that miR-206 may be a novel biomarker with potential for use as a therapeutic target in gliomas.
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Affiliation(s)
- Xue Yang
- Department of Immunology, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, P.R. China
| | - Chuanbao Zhang
- Beijing Neurosurgical Institute, Beijing 100050, P.R. China
| | - Tianzhu Guo
- Department of Immunology, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, P.R. China
| | - Ying Feng
- Department of Immunology, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, P.R. China
| | - Qingyang Liu
- Department of Immunology, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, P.R. China
| | - Yan Chen
- Department of Immunology, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, P.R. China
| | - Quangeng Zhang
- Department of Immunology, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, P.R. China
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50
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Ricciuti B, Mecca C, Crinò L, Baglivo S, Cenci M, Metro G. Non-coding RNAs in lung cancer. Oncoscience 2014; 1:674-705. [PMID: 25593996 PMCID: PMC4278269 DOI: 10.18632/oncoscience.98] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Accepted: 11/15/2014] [Indexed: 12/14/2022] Open
Abstract
The discovery that protein-coding genes represent less than 2% of all human genome, and the evidence that more than 90% of it is actively transcribed, changed the classical point of view of the central dogma of molecular biology, which was always based on the assumption that RNA functions mainly as an intermediate bridge between DNA sequences and protein synthesis machinery. Accumulating data indicates that non-coding RNAs are involved in different physiological processes, providing for the maintenance of cellular homeostasis. They are important regulators of gene expression, cellular differentiation, proliferation, migration, apoptosis, and stem cell maintenance. Alterations and disruptions of their expression or activity have increasingly been associated with pathological changes of cancer cells, this evidence and the prospect of using these molecules as diagnostic markers and therapeutic targets, make currently non-coding RNAs among the most relevant molecules in cancer research. In this paper we will provide an overview of non-coding RNA function and disruption in lung cancer biology, also focusing on their potential as diagnostic, prognostic and predictive biomarkers.
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Affiliation(s)
- Biagio Ricciuti
- Medical Oncology, Santa Maria della Misericordia Hospital, Azienda Ospedaliera di Perugia, Perugia, Italy
| | | | - Lucio Crinò
- Medical Oncology, Santa Maria della Misericordia Hospital, Azienda Ospedaliera di Perugia, Perugia, Italy
| | - Sara Baglivo
- Medical Oncology, Santa Maria della Misericordia Hospital, Azienda Ospedaliera di Perugia, Perugia, Italy
| | - Matteo Cenci
- Medical Oncology, Santa Maria della Misericordia Hospital, Azienda Ospedaliera di Perugia, Perugia, Italy
| | - Giulio Metro
- Medical Oncology, Santa Maria della Misericordia Hospital, Azienda Ospedaliera di Perugia, Perugia, Italy
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