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Miao X, Liang A. Retracted: Knockdown of long noncoding RNA GAS5 attenuates H 2 O 2 -induced damage in retinal ganglion cells through upregulating miR-124: Potential role in traumatic brain injury. J Cell Biochem 2019; 120:2313-2322. [PMID: 30450834 DOI: 10.1002/jcb.27560] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Accepted: 08/02/2018] [Indexed: 02/02/2023]
Abstract
BACKGROUND Optic nerve injury is one of the most common and serious complications in traumatic brain injury (TBI). Alleviating degree of optic nerve injury is important to cure of TBI. This study explored the role of long noncoding RNA (lncRNA) GAS5 in mice retinal ganglion cells (RGCs) suffered to H2 O 2 injury. METHODS Primary RGC (PRGCs) were treated with H2 O 2 to simulate an in vitro oxidation stress model. LncRNA GAS5 and miR-124 expressions were knocked down by cell transfection with short-hairpin RNA against GAS5 and miR-124 inhibitor, and the transfection efficiency was determined by qRT-PCR. Cell viability, apoptotic cell rate, and production of reactive oxygen species (ROS) was analyzed by CCK-8 assay, PI/FITC-Annexin V method, and DCFH-DA fluorometric assay. Cell apoptosis-associated proteins as well as activations of JAK/STAT3 signaling and JNK signaling were analyzed by Western blot. RESULTS H2 O 2 treatment-induced cell injury was inhibited by lncRNA GAS5 silence. Specifically, knockdown of GAS5 improved viability of primary PRGCs, inhibited apoptosis, decreased ROS expression, increased antiapoptosis proteins' expressions, and decreased proapoptosis proteins' expressions. It was also found that miR-124 inhibitor treatment impaired the cell protective effect of GAS5 silence, indicating low level of GAS5 protected PRGCs via upregulating miR-124. GAS5 silence might exert cytoprotection effect via activating JAK/STAT3 signaling pathway and inhibiting activation of JNK signaling pathway. CONCLUSION Knocking down lncRNA GAS5 alleviated H2 O 2 -induced injury in PRGCs via upregulation of miR-124, which might dependent on activation of JAK/STAT3 signaling pathway and inhibition of JNK signaling pathway.
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Affiliation(s)
- Xinglu Miao
- Department of Neurosurgery, Jining No. 1 People's Hospital, Jining, Shandong, China
| | - Anran Liang
- Department of Ophthalmology, Jining No. 1 People's Hospital, Jining, Shandong, China
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Yu H, Song H, Ma Z, Ji W. Down-regulation of MiR-539 Indicates Poor Prognosis in Patients with Pancreatic Cancer. Open Life Sci 2019; 13:497-503. [PMID: 33817119 PMCID: PMC7874721 DOI: 10.1515/biol-2018-0059] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Accepted: 09/29/2018] [Indexed: 01/01/2023] Open
Abstract
It has been demonstrated that miR-539 plays an important role in the development and progression of tumors. The purpose of this study was to analyze the correlation between the expression level of miR-539 and the clinicopathological features and prognosis of patients with pancreatic cancer. Quantitative real-time polymerase chain reaction (qRT-PCR) was used to analyze the expression level of miR-539 in 60 patients with pancreatic cancer. It was found that miR-539 gene expression was down-regulated in pancreatic cancer compared with that in paracancerous tissues. In addition, the expression level of miR-539 was inversely correlated with tumor differentiation (poorly to moderately differentiated vs. well differentiated, P=0.006), lymph node metastasis (positive vs. negative, P=0.006), clinical stage (III-IV vs. I-II, P=0.002), CA199 (≥200 vs. <200, P=0.019) and distant metastasis (positive vs. negative, P=0.035). The survival time of pancreatic cancer patients with low expression of miR-539 was significantly shorter than that of patients with high expression of miR-539. Multivariate analysis suggested that miR-539 expression level was an independent prognostic indicator for patients with pancreatic cancer (P=0.025). Down-regulation of miR-539 may be a potentially unfavorable prognostic factor for patients with pancreatic cancer, and further studies are needed to confirm our conclusion in the future.
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Affiliation(s)
- Haibo Yu
- Research Institute of General Surgery, Nanjing General Hospital of Nanjing Military Region, the First School of Clinical Medicine, Southern Medical University, Nanjing, 210002, PR China.,Department of Hepatobiliary Surgery, Wenzhou Central Hospital, The Dingli Clinical Institute of Wenzhou Medical University, Wenzhou, 325000, P.R. China
| | - Hongliang Song
- Department of Hepatobiliary Surgery, Wenzhou Central Hospital, The Dingli Clinical Institute of Wenzhou Medical University, Wenzhou, 325000, P.R. China
| | - Zhongwu Ma
- Department of Hepatobiliary Surgery, Wenzhou Central Hospital, The Dingli Clinical Institute of Wenzhou Medical University, Wenzhou, 325000, P.R. China
| | - Wu Ji
- Research Institute of General Surgery, Nanjing General Hospital of Nanjing Military Region, the First School of Clinical Medicine, Southern Medical University, Nanjing, 210002, PR China
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53
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Du J, He Y, Wu W, Li P, Chen Y, Hu Z, Han Y. Targeting EphA2 with miR-124 mediates Erlotinib resistance in K-RAS mutated pancreatic cancer. J Pharm Pharmacol 2019; 71:196-205. [PMID: 30604411 DOI: 10.1111/jphp.12941] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Accepted: 05/19/2018] [Indexed: 01/04/2023]
Abstract
OBJECTIVES Chemotheraputic drug resistance is a critical factor associated with the poor survival in advanced/metastatic pancreatic cancer (PC) patients. METHODS Human pancreatic cell lines Capan-1 and BXPC-3 were cultured with different concentrations of erlotinib (0, 10, 50, and 100 μm) for 48 h. The relative cell viability and apoptosis was detected using MTT assays and flow cytometry apoptosis analysis, respectively. Transfection of pcDNA-EphA2, si-EphA2 and miR-124 mimic/inhibitor was used to modulate the intracellular level of EphA2 and miR-124. The interaction between miR-124 and the 3'UTR of EphA2 was explored using dual luciferase reporter assay. KEY FINDINGS Compared with BXPC-3 cells, Capan-1 cells showed resistance to differential concentration treatment of erlotinib. The expression of EphA-2 was significantly increased and the expression of miR-124 was significantly decreased in Capan-1 cells. Overexpressing EphA2 induced resistance of BXPC-3 cells to erlotinib treatment. And EphA2 was identified as a novel target gene for miR-124. MiR-124 overexpression was able to sensitize the response of Capan-1 cells to erlotinib through inhibiting EphA2. Furthermore, both miR-124 overexpression and EphA2 inhibition sensitized Capan-1 cells to erlotinib in xenograft model. CONCLUSIONS Our study demonstrated that EphA2 rescued by miR-124 downregulation conferred the erlotinib resistance of PC cell Capan-1 with K-RAS mutation.
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Affiliation(s)
- Jing Du
- Department of Gastroenterology, Zhejiang Provincial People's Hospital, Hangzhou, Zhejiang, China.,People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Yuanqiao He
- Department of Laboratory Animal Science, Nanchang University, Nanchang, Jiangxi, China
| | - Weiquan Wu
- Department of Gastroenterology, Zhejiang Provincial People's Hospital, Hangzhou, Zhejiang, China.,People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Peng Li
- Department of Gastroenterology, Zhejiang Provincial People's Hospital, Hangzhou, Zhejiang, China.,People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Youwei Chen
- Department of Gastroenterology, Zhejiang Provincial People's Hospital, Hangzhou, Zhejiang, China.,People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Zhiming Hu
- People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang, China.,Department of Hepatobiliary and Pancreatic Surgery, Zhejiang Provincial People's Hospital, Hangzhou, Zhejiang, China.,Key Laboratory of Tumor Molecular Diagnosis and Individualized Medicine of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Yong Han
- People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang, China.,Key Laboratory of Tumor Molecular Diagnosis and Individualized Medicine of Zhejiang Province, Hangzhou, Zhejiang, China.,Clinical Research Institute, Zhejiang Provincial People's Hospital, Hangzhou, Zhejiang, China
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54
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Mungamuri SK. Targeting the epigenome as a therapeutic strategy for pancreatic tumors. THERANOSTIC APPROACH FOR PANCREATIC CANCER 2019:211-244. [DOI: 10.1016/b978-0-12-819457-7.00011-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
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55
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Zhang Z, Zhai W, Liang J, Chen Z, Ma M, Zhao Y, Liang Y, Li X, Teng CB. Mutual inhibitions between epidermal growth factor receptor signaling and miR-124a control pancreatic progenitor proliferation. J Cell Physiol 2018; 234:12978-12988. [PMID: 30537082 DOI: 10.1002/jcp.27967] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Accepted: 11/19/2018] [Indexed: 12/13/2022]
Abstract
Pancreatic stem/progenitor cells convert from a proliferative to a differentiated fate passing through proliferation cease to a resting state. However, the molecular mechanisms of cell cycle arrest are poorly understood. In this study, we demonstrated that the microRNA-124a (miR-124a) inhibited the proliferation of pancreatic progenitor cells both in vitro and ex vivo and promoted a quiescent state. The miR-124a directly targeted SOS Ras/Rac guanine nucleotide exchange factor 1 (SOS1), IQ motif-containing GTPase-activating protein 1 (IQGAP1), signal transducer and activator of transcription 3 (STAT3), and cyclin D2 (CCND2), thereby inactivating epidermal growth factor receptor (EGFR) downstream signaling pathways including mitogen-activated protein kinase/extracellular signal-regulated kinase (MEK/ERK), phosphatidylinositol 3-kinase-protein kinase B (PI3K/AKT) and Janus kinase (JAK)/STAT3. miR-124a blocked cell proliferation mainly through targeting STAT3 to inhibit PI3K/AKT and JAK/STAT3 signaling. Moreover, miR-124a expression was negatively regulated by EGFR downstream PI3K/AKT signaling. These results indicated that miR-124a and EGFR signaling mutually interact to form a regulating circuit that determines the proliferation of pancreatic progenitor cells.
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Affiliation(s)
- Zhenwu Zhang
- College of Life Science, Northeast Forestry University, Harbin, Heilongjiang, China.,School of Life Science and Technology, ShanghaiTech University, Shanghai, China
| | - Wenjun Zhai
- College of Life Science, Northeast Forestry University, Harbin, Heilongjiang, China
| | - Jie Liang
- College of Life Science, Northeast Forestry University, Harbin, Heilongjiang, China
| | - Zhenbao Chen
- College of Life Science, Northeast Forestry University, Harbin, Heilongjiang, China
| | - Mingjun Ma
- College of Life Science, Northeast Forestry University, Harbin, Heilongjiang, China
| | | | - Yang Liang
- College of Life Science, Northeast Forestry University, Harbin, Heilongjiang, China
| | - Xuyan Li
- College of Life Science, Northeast Forestry University, Harbin, Heilongjiang, China.,School of Life Science and Technology, Lingnan Normal University, Zhanjiang, Guangdong, China
| | - Chun-Bo Teng
- College of Life Science, Northeast Forestry University, Harbin, Heilongjiang, China
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56
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Salazar-Ruales C, Arguello JV, López-Cortés A, Cabrera-Andrade A, García-Cárdenas JM, Guevara-Ramírez P, Peralta P, Leone PE, Paz-y-Miño C. Salivary MicroRNAs for Early Detection of Head and Neck Squamous Cell Carcinoma: A Case-Control Study in the High Altitude Mestizo Ecuadorian Population. BIOMED RESEARCH INTERNATIONAL 2018; 2018:9792730. [PMID: 30584540 PMCID: PMC6280231 DOI: 10.1155/2018/9792730] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 10/06/2018] [Accepted: 10/23/2018] [Indexed: 12/12/2022]
Abstract
Head and neck squamous cell carcinoma (HNSCC) is the sixth most common cancer with the highest incidence worldwide. HNSCC is often diagnosed at advanced stages, incurring significant high mortality and morbidity. The use of saliva, as a noninvasive tool for the diagnosis of cancer, has recently increased. Salivary microRNAs (miRNAs) have emerged as a promising molecular tool for early diagnosis of HNSCC. The aim was to identify the differential expression of salivary miRNAs associated with HNSCC in the high altitude mestizo Ecuadorian population. Using PCR Arrays, miR-122-5p, miR-92a-3p, miR-124-3p, miR-205-5p, and miR-146a-5p were found as the most representative ones. Subsequently, miRNAs expression was confirmed in saliva samples from 108 cases and 108 controls. miR-122-5p, miR-92a-3p, miR-124-3p, and miR-146a-5p showed significant statistical difference between cases and controls with areas under the curve (AUC) of 0.73 (p < 0.001), 0.70 (p < 0.001), 0.71 (p = 0.002), and 0.66 (p = 0.008), respectively. miRNAs were also deregulated in between HNSCC localizations. A differentiated expression of miR-122-5p between oral cancer and oropharynx cancer (AUC of 0.96 p = 0.01) was found: miR-124-3p between larynx and pharynx (AUC = 0.97, p < 0.01) and miR-146a-5p between larynx, oropharynx, and oral cavity (AUC = 0.96, p = 0.01). Moreover, miR-122-5p, miR-124-3p, miR-205-5p, and miR-146a-5p could differentiate between HPV+ and HPV- (p=0.004). Finally, the expression profiles of the five miRNAs were evaluated to discriminate HNSCC patient's tumor stages (TNM 2-4). miR-122-5p differentiates TNM 2 and 3 (p = 0.002, AUC = 0.92), miR-124-3p TNM 2, 3, and 4 (p < 0.001, AUC = 98), miR-146a-5p TNM 2 and 3 (p < 0.001, AUC = 0.97), and miR-92a-3p TNM 3 (p < 0.001, AUC = 0.99). Taken together, these findings show that altered expression of miRNAs could be used as biomarkers for HNSCC diagnosis in the high altitude mestizo Ecuadorian population.
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Affiliation(s)
- Carolina Salazar-Ruales
- Centro de Investigación Genética y Genómica, Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Avenue Mariscal Sucre, 170129 Quito, Ecuador
| | - Jessica-Viviana Arguello
- Ingeniería en Biotecnología, Facultad de Ingeniería y Ciencias Agropecuarias, Universidad de las Américas, Avenue de los Granados, 170125 Quito, Ecuador
| | - Andrés López-Cortés
- Centro de Investigación Genética y Genómica, Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Avenue Mariscal Sucre, 170129 Quito, Ecuador
| | - Alejandro Cabrera-Andrade
- Centro de Investigación Genética y Genómica, Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Avenue Mariscal Sucre, 170129 Quito, Ecuador
| | - Jennyfer M. García-Cárdenas
- Centro de Investigación Genética y Genómica, Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Avenue Mariscal Sucre, 170129 Quito, Ecuador
| | - Patricia Guevara-Ramírez
- Centro de Investigación Genética y Genómica, Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Avenue Mariscal Sucre, 170129 Quito, Ecuador
| | - Patricio Peralta
- Hospital Oncológico Solón Espinosa Ayala, Avenue Eloy Alfaro, 170138 Quito, Ecuador
| | - Paola E. Leone
- Centro de Investigación Genética y Genómica, Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Avenue Mariscal Sucre, 170129 Quito, Ecuador
| | - César Paz-y-Miño
- Centro de Investigación Genética y Genómica, Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Avenue Mariscal Sucre, 170129 Quito, Ecuador
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Yu H, Chen Y, Jiang P. Circular RNA HIPK3 exerts oncogenic properties through suppression of miR-124 in lung cancer. Biochem Biophys Res Commun 2018; 506:455-462. [PMID: 30352682 DOI: 10.1016/j.bbrc.2018.10.087] [Citation(s) in RCA: 75] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Accepted: 10/14/2018] [Indexed: 01/19/2023]
Abstract
The current study tested the expression and potential functions of circular RNA HIPK3 (circHIPK3) in human lung cancer. Our results show that circHIPK3 expression is upregulated in established (A549 line) and primary human lung cancer cells, when compared to its low level in the lung epithelial cells. siRNA-mediated silencing of circHIPK3 potently inhibited survival and proliferation of lung cancer cells, but inducing significant apoptosis activation. Contrarily, forced overexpression of circHIPK3 by a lentiviral construct promoted lung cancer cell survival and proliferation. CircHIPK3 acted as a microRNA-124 (miR-124) sponger and regulated the expression of miR-124 mRNA targets, including SphK1, CDK4 and STAT3, in lung cancer cells. Transfection of miR-124 inhibitor significantly inhibited circHIPK3 siRNA-induced lung cancer cell death and apoptosis. At last, we show that circHIPK3 levels are upregulated in human lung cancer tissues, correlated with miR-124 downregulation. The miR-124 targets (SphK1, STAT3 and CDK4) are upregulated in lung cancer tissues. Together, we propose that circHIPK3 promotes lung cancer cell progression possibly by sponging miR-124. These observations indicate a possible novel therapeutic strategy involving circHIPK3-miR-124 pathway against lung cancer.
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Affiliation(s)
- Hanqing Yu
- Emergency Department, Shanghai Pulmonary Hospital Affiliated to Tongji University, Shanghai, China
| | - Yu Chen
- Emergency Department, Shanghai Pulmonary Hospital Affiliated to Tongji University, Shanghai, China
| | - Ping Jiang
- Emergency Department, Shanghai Pulmonary Hospital Affiliated to Tongji University, Shanghai, China.
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58
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Recurrent Neural Network for Predicting Transcription Factor Binding Sites. Sci Rep 2018; 8:15270. [PMID: 30323198 PMCID: PMC6189047 DOI: 10.1038/s41598-018-33321-1] [Citation(s) in RCA: 104] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Accepted: 09/25/2018] [Indexed: 12/23/2022] Open
Abstract
It is well known that DNA sequence contains a certain amount of transcription factors (TF) binding sites, and only part of them are identified through biological experiments. However, these experiments are expensive and time-consuming. To overcome these problems, some computational methods, based on k-mer features or convolutional neural networks, have been proposed to identify TF binding sites from DNA sequences. Although these methods have good performance, the context information that relates to TF binding sites is still lacking. Research indicates that standard recurrent neural networks (RNN) and its variants have better performance in time-series data compared with other models. In this study, we propose a model, named KEGRU, to identify TF binding sites by combining Bidirectional Gated Recurrent Unit (GRU) network with k-mer embedding. Firstly, DNA sequences are divided into k-mer sequences with a specified length and stride window. And then, we treat each k-mer as a word and pre-trained word representation model though word2vec algorithm. Thirdly, we construct a deep bidirectional GRU model for feature learning and classification. Experimental results have shown that our method has better performance compared with some state-of-the-art methods. Additional experiments about embedding strategy show that k-mer embedding will be helpful to enhance model performance. The robustness of KEGRU is proved by experiments with different k-mer length, stride window and embedding vector dimension.
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Li ZY, Sun XY. Molecular targets regulating invasion and metastasis of pancreatic cancer. Shijie Huaren Xiaohua Zazhi 2018; 26:1651-1659. [DOI: 10.11569/wcjd.v26.i28.1651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Pancreatic cancer is one of the most malignant tumors of the digestive system. Invasion and metastasis are important biological characteristics of pancreatic cancer and contribute greatly to the poor prognosis of the patients. Many lines of evidence have recently revealed that many molecules, genes and proteins regulate the invasion and metastasis of pancreatic cancer cells. Therefore, exploration and a deep understanding of the molecular mechanism accounting for the invasion and metastasis of pancreatic cancer can help find novel pancreatic cancer biomarkers, improve early diagnosis, develop novel and effective treatment strategies, and predict the prognosis. This review summarizes the latest progress in the research of molecular targets for pancreatic cancer and the mechanisms by which they participate in the invasion and metastasis of this aggressive malignancy.
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Affiliation(s)
- Zi-Yi Li
- The Hepatosplenic Surgery Center, The First Affiliated Hospital of Harbin Medical University, Harbin 150001, Heilongjiang Province, China
| | - Xue-Ying Sun
- The Hepatosplenic Surgery Center, The First Affiliated Hospital of Harbin Medical University, Harbin 150001, Heilongjiang Province, China
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60
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Advances of circular RNAs in carcinoma. Biomed Pharmacother 2018; 107:59-71. [PMID: 30077838 DOI: 10.1016/j.biopha.2018.07.164] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Revised: 07/29/2018] [Accepted: 07/31/2018] [Indexed: 12/14/2022] Open
Abstract
Circular RNAs (circRNAs) are a type of non-coding RNAs with single-stranded closed structure. The rapid development of high-throughput sequencing technology has allowed for the widespread presence of circRNAs in transcriptomes. Moreover, increasing studies have identified a correlation between circRNAs and different cancers. In addition, most circRNAs are dysregulated in various cancers, and some of them have been reported be vital in the occurrence and development of tumors. For example, ciRS-7 plays a role in tumor promotion and circ-ITCH acts as a tumor suppressor. This review summarizes the latest progressions in the field regarding the functions of circRNAs in relation with cancers, and anticipates the emerging roles of circRNAs and future challenges in cancer research.
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Sun Y, Duan F, Liu W, Peng Z, Dai L, Feng Y, Yang Z, Shang J, Wang K. Comprehensive Assessment of the Relationship Between MicroRNA-124 and the Prognostic Significance of Cancer. Front Oncol 2018; 8:252. [PMID: 30062087 PMCID: PMC6055006 DOI: 10.3389/fonc.2018.00252] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Accepted: 06/21/2018] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Numerous studies have demonstrated the presence of microRNA-124 abnormalities involving gene expression, methylation, and single nucleotide polymorphism (SNP) in multiple and diverse cancers, but the prognostic value of these abnormalities in cancer remains inconclusive. OBJECTIVE The aim of this study is to determine the prognostic value of miR-124 in cancer. METHODS We scrutinized the electronic databases and estimate the association between miR-124 expression, methylation and single nucleotide polymorphisms (SNPs), and prognosis in cancers. The pooled hazard ratios with 95% confidence intervals (CIs) for overall survival (OS), and disease-free survival/recurrence-free survival (RFS)/progression-free survival (PFS) were calculated to estimate the effects of miR-124 expression, methylation, and SNPs on cancer prognosis. The Quality in Prognosis Studies and Newcastle-Ottawa Scale were utilized to assess the quality of included studies. RESULTS A total of 20 studies involving 3,574 participants were analyzed in evidence synthesis. Our findings showed that the low expression of miR-124 was significantly associated with poor OS (HR = 2.37, 95% CI: 1.91-2.94, P = 0.00; HR = 3.10, 95% CI: 2.04-4.70, P = 0.00) and PFS/RFS (HR = 2.21, 95% CI: 1.50-3.26, P = 0.00; HR = 2.12, 95% CI: 1.20-3.74, P = 0.00). The hyper-methylation of miR-124 was associated with poor OS (HR = 2.09, 95% CI: 1.48-2.95, P = 0.00) and PFS (HR = 3.70, 95% CI: 1.72-7.97, P = 0.00) (Table 3). The patients carrying with Allele C of miR-124 rs5315649 had a worse OS (HR = 1.50, 95% CI: 1.09-2.07, P = 0.00) and PFS (HR = 1.67, 95% CI: 1.20-2.33, P = 0.00) than the carriers with Allele G. CONCLUSION The low expression and hyper-methylation of miR-124 was strongly associated with poor prognosis, and genetic variations of miR-124 rs531564 affected prognosis in cancer patients.
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Affiliation(s)
- Yadong Sun
- Department of Breast and Medical Research Office, Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, China
| | - Fujiao Duan
- Department of Breast and Medical Research Office, Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, China
- College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Weigang Liu
- Medical Record Statistics Office, Affiliated Hospital of Hebei University of Engineering, Handan, China
| | - Zhen Peng
- Department of Infectious Disease, People’s Hospital of Zhengzhou University, Henan Provincial People’s Hospital, Zhengzhou, China
| | - Liping Dai
- College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Yajing Feng
- Department of Nosocomial Infection Management, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Zhenxing Yang
- Department of Breast and Medical Research Office, Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, China
| | - Jia Shang
- Department of Infectious Disease, People’s Hospital of Zhengzhou University, Henan Provincial People’s Hospital, Zhengzhou, China
| | - Kaijuan Wang
- College of Public Health, Zhengzhou University, Zhengzhou, China
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Sulforaphane promotes apoptosis, and inhibits proliferation and self-renewal of nasopharyngeal cancer cells by targeting STAT signal through miRNA-124-3p. Biomed Pharmacother 2018; 103:473-481. [DOI: 10.1016/j.biopha.2018.03.121] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2017] [Revised: 03/19/2018] [Accepted: 03/20/2018] [Indexed: 12/22/2022] Open
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Involvement of anti-tumor miR-124-3p and its targets in the pathogenesis of pancreatic ductal adenocarcinoma: direct regulation of ITGA3 and ITGB1 by miR-124-3p. Oncotarget 2018; 9:28849-28865. [PMID: 29988949 PMCID: PMC6034741 DOI: 10.18632/oncotarget.25599] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2018] [Accepted: 05/24/2018] [Indexed: 01/02/2023] Open
Abstract
MicroRNAs (miRNAs) are unique in that a single miRNA molecule regulates a vast number of RNA transcripts. Thus, aberrantly expressed miRNAs disrupt tightly controlled RNA networks in cancer cells. Our functional screening showed that expression of miR-124-3p was downregulated in pancreatic ductal adenocarcinoma (PDAC) tissues. Here, we aimed to investigate the anti-tumor roles of miR-124-3p in PDAC cells and to identify miR-124-3p-mediated oncogenic signaling in this disease. Ectopic expression of miR-124-3p inhibited cancer cell migration and invasion in PDAC cells. Moreover, restoration of miR-124-3p suppressed oncogenic signaling, as demonstrated by reduced phosphorylation of focal adhesion kinase, AKT, and extracellular signal-regulated kinase, in PDAC cells. Our in silico database analyses and luciferase reporter assays showed that two cell-surface matrix receptors, integrin α3 (ITGA3) and integrin β1 (ITGB1), were directly regulated by miR-124-3p in PDAC cells. Overexpression of ITGA3 and ITGB1 was confirmed in PDAC clinical specimens. Interestingly, a large number of cohort analyses from TCGA database showed that high expressions of ITGA3 and ITGB1 were significantly associated with poor prognosis of patients with PDAC. Knockdown of ITGA3 and ITGB1 by siRNAs markedly suppressed the migration and invasion abilities of PDAC cells. Moreover, downstream oncogenic signaling was inhibited by ectopic expression of miR-124-3p or knockdown of the two integrins. The discovery of anti-tumor miRNAs and miRNA-mediated oncogenic signaling may provide novel therapeutic targets for the treatment of PDAC.
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Nagata H, Kozaki KI, Muramatsu T, Hiramoto H, Tanimoto K, Fujiwara N, Imoto S, Ichikawa D, Otsuji E, Miyano S, Kawano T, Inazawa J. Genome-wide screening of DNA methylation associated with lymph node metastasis in esophageal squamous cell carcinoma. Oncotarget 2018; 8:37740-37750. [PMID: 28465481 PMCID: PMC5514945 DOI: 10.18632/oncotarget.17147] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Accepted: 03/28/2017] [Indexed: 12/18/2022] Open
Abstract
Lymph node metastasis (LNM) of esophageal squamous cell carcinoma (ESCC) is well-known to be an early event associated with poor prognosis in patients with ESCC. Recently, tumor-specific aberrant DNA methylation of CpG islands around the promoter regions of tumor-related genes has been investigated as a possible biomarker for use in early diagnosis and prediction of prognosis. However, there are few DNA methylation markers able to predict the presence of LNM in ESCC. To identify DNA methylation markers associated with LNM of ESCC, we performed a genome-wide screening of DNA methylation status in a discovery cohort of 67 primary ESCC tissues and their paired normal esophageal tissues using the Illumina Infinium HumanMethylation450 BeadChip. In this screening, we focused on differentially methylated regions (DMRs) that were associated with LNM of ESCC, as prime candidates for DNA methylation markers. We extracted three genes, HOXB2, SLC15A3, and SEPT9, as candidates predicting LNM of ESCC, using pyrosequencing and several statistical analyses in the discovery cohort. We confirmed that HOXB2 and SEPT9 were highly methylated in LNM-positive tumors in 59 ESCC validation samples. These results suggested that HOXB2 and SEPT9 may be useful epigenetic biomarkers for the prediction of the presence of LNM in ESCC.
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Affiliation(s)
- Hiroaki Nagata
- Department of Molecular Cytogenetics, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan.,Department of Digestive Surgery, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kamigyo-ku, Kyoto, Japan
| | - Ken-Ichi Kozaki
- Department of Molecular Cytogenetics, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan.,Hard Tissue Genome Research Center, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan.,Department of Dental Pharmacology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Kita-ku, Okayama, Japan
| | - Tomoki Muramatsu
- Department of Molecular Cytogenetics, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan
| | - Hidekazu Hiramoto
- Department of Molecular Cytogenetics, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan.,Department of Digestive Surgery, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kamigyo-ku, Kyoto, Japan
| | - Kousuke Tanimoto
- Genome Laboratory, Graduate School of Medicine, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan
| | - Naoto Fujiwara
- Department of Molecular Cytogenetics, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan.,Department of Esophageal and General Surgery, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan
| | - Seiya Imoto
- Human Genome Center, Institute of Medical Science, University of Tokyo, Tokyo, Japan
| | - Daisuke Ichikawa
- Department of Digestive Surgery, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kamigyo-ku, Kyoto, Japan
| | - Eigo Otsuji
- Department of Digestive Surgery, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kamigyo-ku, Kyoto, Japan
| | - Satoru Miyano
- Human Genome Center, Institute of Medical Science, University of Tokyo, Tokyo, Japan
| | - Tatsuyuki Kawano
- Department of Esophageal and General Surgery, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan
| | - Johji Inazawa
- Department of Molecular Cytogenetics, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan.,Hard Tissue Genome Research Center, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan.,Bioresource Research Center, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan
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65
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Xi T, Zhang G. Integrated analysis of tumor differentiation genes in pancreatic adenocarcinoma. PLoS One 2018; 13:e0193427. [PMID: 29596435 PMCID: PMC5875763 DOI: 10.1371/journal.pone.0193427] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Accepted: 02/09/2018] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Tumor differentiation is an important process in the development of cancer. It is valuable to identify key differentiation related genes in the prognosis and therapy of pancreatic adenocarcinoma. METHODS The mRNA expression data were downloaded from the Cancer Genome Atlas database. Then, differentially expressed tumor differentiation related genes were identified. Additionally, Gene Ontology functional categories and Kyoto Encyclopedia of Genes and Genomes biochemical pathway was used to explore the function. In addition, receiver operating characteristic and survival analysis were carried out to assess the diagnosis and prognosis value. Finally, the electronic validation of selected tumor differentiation related genes was performed. RESULTS A total of 932 genes were identified. Among which, 8 genes including JUB, ERLIN1, HMGA2, FAM110B, EGFR, MCM2, TCTA and SSTR1 were differentially expressed in all different tumor differentiation grades. Functional analysis revealed those genes between highly differentiated and other differentiation were remarkably enriched in pancreatic adenocarcinoma and cell cycle pathway. Finally, ERLIN1, HMGA2, FAM110B, EGFR, MCM2, BCL2L1, E2F1 and RAC1 were associated with the survival time of pancreatic adenocarcinoma patient. Among these genes, JUB, ERLIN1, FAM110B, MCM2 and BCL2L1 also had a diagnosis value for pancreatic adenocarcinoma. Additionally, the expression trend of JUB, HMGA2 and MCM2 was increased along with the tumor differentiation grades. And the expression trend of FAM110B was decreased along with the tumor differentiation grades. The electronic validation result was consistent with the bioinformatics analysis. CONCLUSIONS 12 tumor differentiation related genes including JUB, ERLIN1, HMGA2, FAM110B, EGFR, MCM2, TCTA, SSTR1, BCL2L1, E2F1, RAC1 and STAT1 played crucial roles in the differentiation of pancreatic adenocarcinoma.
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Affiliation(s)
- Ting Xi
- Department of Gastroenterology, First People’s Hospital of Liaocheng, Liaocheng, Shandong Province, China
- * E-mail:
| | - Guizhi Zhang
- Department of Gastroenterology, Second People’s Hospital of Liaocheng, Liaocheng, Shandong Province, China
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66
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Liu K, Yao H, Lei S, Xiong L, Qi H, Qian K, Liu J, Wang P, Zhao H. The miR-124-p63 feedback loop modulates colorectal cancer growth. Oncotarget 2018; 8:29101-29115. [PMID: 28418858 PMCID: PMC5438716 DOI: 10.18632/oncotarget.16248] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Accepted: 02/20/2017] [Indexed: 12/26/2022] Open
Abstract
Among the diverse co-regulatory relationships between transcription factors (TFs) and microRNAs (miRNAs), feedback loops have received the most extensive research attention. The co-regulation of TFs and miRNAs plays an important role in colorectal cancer (CRC) growth. Here, we show that miR-124 can regulate two isoforms of p63, TAp63 and ΔNp63, via iASPP, while p63 modulates signal transducers and activators of transcription 1 (STAT1) expression by targeting miR-155. Moreover, STAT1 acts as a regulator of CRC growth by targeting miR-124. Taken together, these results reveal a feedback loop between miRNAs and TFs. This feedback loop comprises miR-124, iASPP, STAT1, miR-155, TAp63 and ΔNp63, which are essential for CRC growth. Moreover, this feedback loop is perturbed in human colon carcinomas, which suggests that the manipulation of this microRNA-TF feedback loop has therapeutic potential for CRC.
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Affiliation(s)
- Kuijie Liu
- Department of General Surgery, The Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - Hongliang Yao
- Department of General Surgery, The Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - Sanlin Lei
- Department of General Surgery, The Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - Li Xiong
- Department of General Surgery, The Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - Haizhi Qi
- Department of General Surgery, The Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - Ke Qian
- Department of General Surgery, The Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - Jiqiang Liu
- Department of General Surgery, The Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - Peng Wang
- Department of General Surgery, The Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - Hua Zhao
- Department of General Surgery, The Second Xiangya Hospital, Central South University, Changsha 410011, China
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67
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Lentivirus-mediated overexpression of miR-124 suppresses growth and invasion by targeting JAG1 and EZH2 in gastric cancer. Oncol Lett 2018; 15:7450-7458. [PMID: 29731896 DOI: 10.3892/ol.2018.8194] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2016] [Accepted: 01/26/2018] [Indexed: 12/21/2022] Open
Abstract
MicroRNA-124 (miR-124) expression is downregulated and has a tumor suppressor role in various types of cancer. The present study revealed that genes encoding miR-124 were frequently methylated and the expression of miR-124 was downregulated in gastric cancer tissues. Stable expression of miR-124 using a lentiviral vector inhibited gastric cancer cell growth, migration and invasion in vitro. In addition, overexpression of miR-124 suppressed gastric cancer cell xenograft growth in nude mice. The expression of the Notch ligand Jagged1 (JAG1) and enhancer of zeste homolog 2 (EZH2) was downregulated upon miR-124 overexpression, and silencing of JAG1 or EZH2 by RNA interference also suppressed gastric cancer cell growth, migration and invasion. Furthermore, expression of fibronectin and vimentin, not able elements of the epithelial-mesenchymal transition, were suppressed by overexpression of miR-124 or inhibition of JAG1 or EZH2 expressions in GC. Together, these results indicated that miR-124 suppressed gastric cancer progression, partly through inhibiting JAG1 and EZH2. Thus, lentivirus-mediated overexpression of miR-124 may be a potential therapeutic strategy against gastric cancer.
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68
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Xu L, Dai W, Li J, He L, Wang F, Xia Y, Chen K, Li S, Liu T, Lu J, Zhou Y, Wang Y, Guo C. Methylation-regulated miR-124-1 suppresses tumorigenesis in hepatocellular carcinoma by targeting CASC3. Oncotarget 2018; 7:26027-41. [PMID: 27029030 PMCID: PMC5041962 DOI: 10.18632/oncotarget.8266] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2015] [Accepted: 03/08/2016] [Indexed: 12/27/2022] Open
Abstract
This study was to investigate the roles and mechanisms of miR-124-1 in hepatocellular carcinoma (HCC). We analyzed the expression of miR-124-1 in human HCC tissues and cell lines. Luciferase reporter assays were used to analyze the target of miR-124-1. Human HCC cell lines were transduced with lentiviruses expressing miR-124-1, and proliferation and colony formation were analyzed. The growth of human HCC cells overexpressing miR-124-1 was assessed in nude mice. The expression of p38-MAPK, JNK, ERK and related signaling molecules was detected by western blotting and immunohistochemistry. Our results showed that miR-124-1 levels were reduced in HCC tissues and cell lines compared with those in adjacent non-cancer tissues and normal liver cell lines respectively. Downregulation of miR-124-1 in HCC cell lines were attributed to hypermethylation of its promoter region. Overexpression of miR-124-1 inhibited HCC cell proliferation in vitro, whereas miR-124-1 was correlated with clinicopathological parameters of HCC patients. HCC cell-mediated overexpression of miR-124-1 in nude mice suppressed tumor growth. Cancer susceptibility candidate 3 (CASC3) was identified as a direct target of miR-124-1 by computational analysis and experimental assays. MiR-124-1-mediated downregulation of CASC3 resulted in the inactivation of p38-MAPK, JNK and ERK. Our findings provide potential new targets for the prevention or treatment of HCC.
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Affiliation(s)
- Ling Xu
- Department of Gastroenterology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China.,Department of Gastroenterology, Shanghai Tongren Hospital, Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200336, China
| | - Weiqi Dai
- Department of Gastroenterology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - JingJing Li
- Department of Gastroenterology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Lei He
- Department of Gastroenterology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Fan Wang
- Department of Gastroenterology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Yujing Xia
- Department of Gastroenterology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Kan Chen
- Department of Gastroenterology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Sainan Li
- Department of Gastroenterology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Tong Liu
- Department of Gastroenterology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Jie Lu
- Department of Gastroenterology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Yingqun Zhou
- Department of Gastroenterology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Yugang Wang
- Department of Gastroenterology, Shanghai Tongren Hospital, Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200336, China
| | - Chuanyong Guo
- Department of Gastroenterology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
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69
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Li Y, Shao G, Zhang M, Zhu F, Zhao B, He C, Zhang Z. miR-124 represses the mesenchymal features and suppresses metastasis in Ewing sarcoma. Oncotarget 2018; 8:10274-10286. [PMID: 28055964 PMCID: PMC5354658 DOI: 10.18632/oncotarget.14394] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2016] [Accepted: 12/12/2016] [Indexed: 12/25/2022] Open
Abstract
Metastasis is the most powerful predictor of poor outcome of Ewing sarcoma (ES). Thus, identification of new molecules involved in tumor metastasis is of crucial importance to reduce morbidity and mortality of this devastating disease. In this study, we found that miR-124, a highly conserved miRNA, was suppressed in ES tissues and might be associated with tumor metastasis through suppressing its mesenchymal features. Overexpression of miR-124 suppressed the invasion of ES cells in vitro and tumor metastasis in vivo, which might be achieved through suppressing its mesenchymal features, as overexpression of miR-124 could repress the mesenchymal genes expression, and inhibit cell differentiation to mesenchymal lineages in ES cells. However, when SLUG was experimentally restored in these cells, mesenchymal features including suppressed expression of mesenchymal genes and decreased invasive ability were observed. We also found that cyclin D2 (CCND2) was a novel target gene of miR-124, and was directly involved in miR-124-mediated suppressive effects on cell growth. Lastly, we found that treatment with 5-Aza-CdR restored the expression of miR-124, accompanied with suppressed cell proliferation, invasion and mesenchymal features of ES cells, which demonstrated that hypermethylation might be involved in the regulation of miR-124 expression. Collectively, our data suggest that hypermethylation-mediated suppression of miR-124 might be involved in the tumor initiation and metastasis through suppressing the mesenchymal features of ES cells.
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Affiliation(s)
- Yunyun Li
- Department of Gynecology and Obstetrics, the Yongchuan Hospital of Chongqing Medical University, Chongqing 402160, PR China
| | - Gaohai Shao
- Department of Orthopedics, the Yongchuan Hospital of Chongqing Medical University, Chongqing 402160, PR China
| | - Minghua Zhang
- Department of Orthopedics, the Yongchuan Hospital of Chongqing Medical University, Chongqing 402160, PR China
| | - Fengchen Zhu
- Department of Orthopedics, the Yongchuan Hospital of Chongqing Medical University, Chongqing 402160, PR China
| | - Bo Zhao
- Department of Orthopedics, the Yongchuan Hospital of Chongqing Medical University, Chongqing 402160, PR China
| | - Chao He
- Department of Orthopedics, the Yongchuan Hospital of Chongqing Medical University, Chongqing 402160, PR China
| | - Zhongzu Zhang
- Department of Orthopedics, the Yongchuan Hospital of Chongqing Medical University, Chongqing 402160, PR China
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70
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Vrba L, Futscher BW. A suite of DNA methylation markers that can detect most common human cancers. Epigenetics 2018; 13:61-72. [PMID: 29212414 DOI: 10.1080/15592294.2017.1412907] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Cancer-specific DNA methylation from the tumor derived fraction of cell free DNA found in blood samples could be used for minimally invasive detection and monitoring of cancer. The knowledge of marker regions with cancer-specific DNA methylation is necessary to the success of such a process. We analyzed the largest cancer DNA methylation dataset available-TCGA Illumina HumanMethylation450 data with over 8,500 tumors-in order to find cancer-specific DNA methylation markers for most common human cancers. First, we identified differentially methylated regions for individual cancer types and those were further filtered against data from normal tissues to obtain marker regions with cancer-specific methylation, resulting in a total of 1,250 hypermethylated and 584 hypomethylated marker CpGs. From hypermethylated markers, optimal sets of six markers for each TCGA cancer type were chosen that could identify most tumors with high specificity and sensitivity [area under the curve (AUC): 0.969-1.000] and a universal 12 marker set that can detect tumors of all 33 TCGA cancer types (AUC >0.84). In addition to hundreds of new DNA methylation markers, our approach also identified markers that are in current clinical use, SEPT9 and GSTP1, indicating the validity of our approach and a significant potential utility for the newly discovered markers. The hypermethylated markers are linked to polycomb associated loci and a significant fraction of the discovered markers is within noncoding RNA genes; one of the best markers is MIR129-2. Future clinical testing of herein discovered markers will confirm new markers that will improve minimally invasive diagnosis and monitoring for multiple cancers.
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Affiliation(s)
- Lukas Vrba
- a The University of Arizona Cancer Center , Tucson , AZ 85724 , USA
| | - Bernard W Futscher
- a The University of Arizona Cancer Center , Tucson , AZ 85724 , USA.,b Department of Pharmacology & Toxicology, College of Pharmacy , The University of Arizona , Tucson , AZ 85724 , USA
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71
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He RQ, Yang X, Liang L, Chen G, Ma J. MicroRNA-124-3p expression and its prospective functional pathways in hepatocellular carcinoma: A quantitative polymerase chain reaction, gene expression omnibus and bioinformatics study. Oncol Lett 2018; 15:5517-5532. [PMID: 29552191 PMCID: PMC5840674 DOI: 10.3892/ol.2018.8045] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Accepted: 12/14/2017] [Indexed: 12/24/2022] Open
Abstract
The present study aimed to explore the potential clinical significance of microRNA (miR)-124-3p expression in the hepatocarcinogenesis and development of hepatocellular carcinoma (HCC), as well as the potential target genes of functional HCC pathways. Reverse transcription-quantitative polymerase chain reaction was performed to evaluate the expression of miR-124-3p in 101 HCC and adjacent non-cancerous tissue samples. Additionally, the association between miR-124-3p expression and clinical parameters was also analyzed. Differentially expressed genes identified following miR-124-3p transfection, the prospective target genes predicted in silico and the key genes of HCC obtained from Natural Language Processing (NLP) were integrated to obtain potential target genes of miR-124-3p in HCC. Relevant signaling pathways were assessed with protein-protein interaction (PPI) networks, Gene Ontology (GO) enrichment analysis, Kyoto Encyclopedia of Genes and Genomes (KEGG) and Protein Annotation Through Evolutionary Relationships (PANTHER) pathway enrichment analysis. miR-124-3p expression was significantly reduced in HCC tissues compared with expression in adjacent non-cancerous liver tissues. In HCC, miR-124-3p was demonstrated to be associated with clinical stage. The mean survival time of the low miR-124-3p expression group was reduced compared with that of the high expression group. A total of 132 genes overlapped from differentially expressed genes, miR-124-3p predicted target genes and NLP identified genes. PPI network construction revealed a total of 109 nodes and 386 edges, and 20 key genes were identified. The major enriched terms of three GO categories included regulation of cell proliferation, positive regulation of cellular biosynthetic processes, cell leading edge, cytosol and cell projection, protein kinase activity, transcription activator activity and enzyme binding. KEGG analysis revealed pancreatic cancer, prostate cancer and non-small cell lung cancer as the top three terms. Angiogenesis, the endothelial growth factor receptor signaling pathway and the fibroblast growth factor signaling pathway were identified as the most significant terms in the PANTHER pathway analysis. The present study confirmed that miR-124-3p acts as a tumor suppressor in HCC. miR-124-3p may target multiple genes, exerting its effect spatiotemporally, or in combination with a diverse range of processes in HCC. Functional characterization of miR-124-3p targets will offer novel insight into the molecular changes that occur in HCC progression.
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Affiliation(s)
- Rong-Quan He
- Department of Medical Oncology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Xia Yang
- Department of Pathology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Liang Liang
- Department of General Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Gang Chen
- Department of Pathology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Jie Ma
- Department of Medical Oncology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
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72
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MiRNAs at the Crossroads between Innate Immunity and Cancer: Focus on Macrophages. Cells 2018; 7:cells7020012. [PMID: 29419779 PMCID: PMC5850100 DOI: 10.3390/cells7020012] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Revised: 02/01/2018] [Accepted: 02/06/2018] [Indexed: 12/12/2022] Open
Abstract
Innate immune cells form an integrative component of the tumor microenvironment (TME), which can control or prevent tumor initiation and progression, due to the simultaneous processing of both anti- and pro-growth signals. This decision-making process is a consequence of gene expression changes, which are in part dependent on post-transcriptional regulatory mechanisms. In this context, microRNAs have been shown to regulate both recruitment and activation of specific tumor-associated immune cells in the TME. This review aims to describe the most important microRNAs that target cancer-related innate immune pathways. The role of exosomal microRNAs in tumor progression and microRNA-based therapeutic strategies are also discussed.
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73
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circHIPK3 regulates cell proliferation and migration by sponging miR-124 and regulating AQP3 expression in hepatocellular carcinoma. Cell Death Dis 2018; 9:175. [PMID: 29415990 PMCID: PMC5833724 DOI: 10.1038/s41419-017-0204-3] [Citation(s) in RCA: 216] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2017] [Revised: 11/23/2017] [Accepted: 12/06/2017] [Indexed: 02/07/2023]
Abstract
Noncoding RNAs plays an important role in hepatocellular carcinoma (HCC). Here, we show that miR-124 was downregulated in HCC tissues and that the ectopic expression of miR-124 inhibited the proliferation and migration of HCC cells. We proposed that aquaporin 3 (AQP3) is a direct target of miR-124. AQP3 was upregulated in HCC tissues and inversely correlated with miR-124 expression. The overexpression of miR-124 decreased AQP3 expression. Indeed, AQP3 overexpression promoted cell proliferation and migration, whereas miR-124 knockdown suppressed cell proliferation and migration. Furthermore, we found that circular RNA HIPK3 (circHIPK3) acted as a miR-124 sponge and regulated the expression of the miR-124 target gene AQP3. circHIPK3 was upregulated in HCC tissues and positively correlated with AQP3 expression. Thus, silencing circHIPK3 inhibited cell proliferation and migration by downregulating AQP3 expression. Moreover, miR-124 inhibition rescued circHIPK3 knockdown induced reduction in cell proliferation and migration, as well as AQP3 expression. In vivo experiments also confirmed that circHIPK3 regulated xenograft tumor growth via the miR-124-AQP3 axis. These observations indicate a possible novel therapeutic strategy involving circular RNAs in HCC.
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74
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Epigenetics and MicroRNAs in Cancer. Int J Mol Sci 2018; 19:ijms19020459. [PMID: 29401683 PMCID: PMC5855681 DOI: 10.3390/ijms19020459] [Citation(s) in RCA: 94] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Revised: 01/29/2018] [Accepted: 01/30/2018] [Indexed: 02/08/2023] Open
Abstract
The ability to reprogram the transcriptional circuitry by remodeling the three-dimensional structure of the genome is exploited by cancer cells to promote tumorigenesis. This reprogramming occurs because of hereditable chromatin chemical modifications and the consequent formation of RNA-protein-DNA complexes that represent the principal actors of the epigenetic phenomena. In this regard, the deregulation of a transcribed non-coding RNA may be both cause and consequence of a cancer-related epigenetic alteration. This review summarizes recent findings that implicate microRNAs in the aberrant epigenetic regulation of cancer cells.
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75
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Cai WL, Huang WD, Li B, Chen TR, Li ZX, Zhao CL, Li HY, Wu YM, Yan WJ, Xiao JR. microRNA-124 inhibits bone metastasis of breast cancer by repressing Interleukin-11. Mol Cancer 2018; 17:9. [PMID: 29343249 PMCID: PMC5773190 DOI: 10.1186/s12943-017-0746-0] [Citation(s) in RCA: 93] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Accepted: 11/26/2017] [Indexed: 02/06/2023] Open
Abstract
Background Most patients with breast cancer in advanced stages of the disease suffer from bone metastases which lead to fractures and nerve compression syndromes. microRNA dysregulation is an important event in the metastases of breast cancer to bone. microRNA-124 (miR-124) has been proved to inhibit cancer progression, whereas its effect on bone metastases of breast cancer has not been reported. Therefore, this study aimed to investigate the role and underlying mechanism of miR-124 in bone metastases of breast cancer. Methods In situ hybridization (ISH) was used to detect the expression of miR-124 in breast cancer tissues and bone metastatic tissues. Ventricle injection model was constructed to explore the effect of miR-124 on bone metastasis in vivo. The function of cancer cell derived miR-124 in the differentiation of osteoclast progenitor cells was verified in vitro. Dual-luciferase reporter assay was conducted to confirm Interleukin-11 (IL-11) as a miR-124 target. The involvement of miR-124/IL-11 in the prognosis of breast cancer patients with bone metastasis was determined by Kaplan-Meier analysis. Results Herein, we found that miR-124 was significantly reduced in metastatic bone tissues from breast cancers. Down-regulation of miR-124 was associated with aggressive clinical characteristics and shorter bone metastasis-free survival and overall survival. Restoration of miR-124 suppressed, while inhibition of miR-124 promoted the bone metastasis of breast cancer cells in vivo. At the cellular level, gain of function and loss-of function assays indicated that cancer cell-derived miR-124 inhibited the survival and differentiation of osteoclast progenitor cells. At the molecular level, we demonstrated that IL-11 partially mediated osteoclastogenesis suppression by miR-124 using in vitro and in vivo assays. Furthermore, IL-11 levels were inversely correlated with miR-124, and up-regulation IL-11 in bone metastases was associated with a poor prognosis. Conclusions Thus, the identification of a dysregulated miR-124/IL-11 axis helps elucidate mechanisms of breast cancer metastases to bone, uncovers new prognostic markers, and facilitates the development of novel therapeutic targets to treat and even prevent bone metastases of breast cancer. Electronic supplementary material The online version of this article (10.1186/s12943-017-0746-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Wei-Luo Cai
- Department of Musculoskeletal Tumor, Fudan University Shanghai Cancer Center, Department of Oncology, Shanghai Medical College, Fudan University, 270 Dong An Road, Shanghai, 200032, People's Republic of China.,Spine Tumor Center, Changzheng Hospital, Second Military Medical University, 415 Feng Yang Road, Shanghai, 200003, People's Republic of China
| | - Wen-Ding Huang
- Department of Musculoskeletal Tumor, Fudan University Shanghai Cancer Center, Department of Oncology, Shanghai Medical College, Fudan University, 270 Dong An Road, Shanghai, 200032, People's Republic of China
| | - Bo Li
- Spine Tumor Center, Changzheng Hospital, Second Military Medical University, 415 Feng Yang Road, Shanghai, 200003, People's Republic of China
| | - Tian-Rui Chen
- Spine Tumor Center, Changzheng Hospital, Second Military Medical University, 415 Feng Yang Road, Shanghai, 200003, People's Republic of China
| | - Zhen-Xi Li
- Spine Tumor Center, Changzheng Hospital, Second Military Medical University, 415 Feng Yang Road, Shanghai, 200003, People's Republic of China
| | - Cheng-Long Zhao
- Spine Tumor Center, Changzheng Hospital, Second Military Medical University, 415 Feng Yang Road, Shanghai, 200003, People's Republic of China
| | - Heng-Yu Li
- Department of Breast and Thyroid Surgery, General Surgery, Changhai Hospital, Second Military Medical University, Shanghai, 200433, China
| | - Yan-Mei Wu
- Department of Breast and Thyroid Surgery, General Surgery, Changhai Hospital, Second Military Medical University, Shanghai, 200433, China
| | - Wang-Jun Yan
- Department of Musculoskeletal Tumor, Fudan University Shanghai Cancer Center, Department of Oncology, Shanghai Medical College, Fudan University, 270 Dong An Road, Shanghai, 200032, People's Republic of China. .,Spine Tumor Center, Changzheng Hospital, Second Military Medical University, 415 Feng Yang Road, Shanghai, 200003, People's Republic of China.
| | - Jian-Ru Xiao
- Spine Tumor Center, Changzheng Hospital, Second Military Medical University, 415 Feng Yang Road, Shanghai, 200003, People's Republic of China.
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76
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Jiang CF, Li DM, Shi ZM, Wang L, Liu MM, Ge X, Liu X, Qian YC, Wen YY, Zhen LL, Lin J, Liu LZ, Jiang BH. Estrogen regulates miRNA expression: implication of estrogen receptor and miR-124/AKT2 in tumor growth and angiogenesis. Oncotarget 2018; 7:36940-36955. [PMID: 27175587 PMCID: PMC5095050 DOI: 10.18632/oncotarget.9230] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Accepted: 04/16/2016] [Indexed: 12/21/2022] Open
Abstract
It is currently known that estrogen plays an important role in breast cancer (BC) development, but the underlying molecular mechanism remains to be elucidated. Accumulating evidence has revealed important roles of microRNAs in various kinds of human cancers, including BC. In this study, we found that among the microRNAs regulated by estrogen, miR-124 was the most prominent downregulated miRNA. miR-124 was downregulated by estradiol (E2) treatment in estrogen receptor (ER) positive BC cells, miR-124 overexpression suppressed cell proliferation, migration and invasion in BC cells; while the suppression of miR-124 using Anti-miR-124 inhibitor had opposite cellular functions. Under the E2 treatment, miR-124 had stronger effect to inhibit cellular functions in MCF7 cells than that in MDA-MB-231 cells. In addition, we identified that ERα, but not ERβ, was required for E2-induced miR-124 downregulation. Furthermore, AKT2, a known oncogene, was a novel direct target of miR-124. AKT2 expression levels were inversely correlated with miR-124 expression levels in human breast cancer specimens. AKT2 was overexpressed in BC specimens, and its expression levels were much higher in ERα positive cancer tissues than those ERα negative cancer tissues. Consistent with miR-124 suppression, E2 treatment increased AKT2 expression levels in MCF7 cells via ERα. Finally, overexpression of miR-124 in MCF7 cells significantly suppressed tumor growth and angiogenesis by targeting AKT2. Our results provide a mechanistic insight into a functional role of new ERα/miR-124/AKT2 signaling pathway in BC development. miR-124 and AKT2 may be used as biomarkers for ERα positive BC and therapeutic effect in the future.
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Affiliation(s)
- Cheng-Fei Jiang
- State Key Laboratory of Reproductive Medicine, Department of Pathology, Nanjing Medical University, Nanjing, China
| | - Dong-Mei Li
- State Key Laboratory of Reproductive Medicine, Department of Pathology, Nanjing Medical University, Nanjing, China
| | - Zhu-Mei Shi
- State Key Laboratory of Reproductive Medicine, Department of Pathology, Nanjing Medical University, Nanjing, China.,Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Lin Wang
- State Key Laboratory of Reproductive Medicine, Department of Pathology, Nanjing Medical University, Nanjing, China
| | - Min-Min Liu
- Huai'an First People's Hospital, Nanjing Medical University, Huai'an, China
| | - Xin Ge
- State Key Laboratory of Reproductive Medicine, Department of Pathology, Nanjing Medical University, Nanjing, China
| | - Xue Liu
- State Key Laboratory of Reproductive Medicine, Department of Pathology, Nanjing Medical University, Nanjing, China
| | - Ying-Chen Qian
- State Key Laboratory of Reproductive Medicine, Department of Pathology, Nanjing Medical University, Nanjing, China
| | - Yi-Yang Wen
- State Key Laboratory of Reproductive Medicine, Department of Pathology, Nanjing Medical University, Nanjing, China
| | - Lin-Lin Zhen
- Huai'an First People's Hospital, Nanjing Medical University, Huai'an, China
| | - Jie Lin
- Faculty of Software, Fujian Normal University, Fuzhou, China
| | - Ling-Zhi Liu
- Department of Pathology, Anatomy and Cell Biology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Bing-Hua Jiang
- State Key Laboratory of Reproductive Medicine, Department of Pathology, Nanjing Medical University, Nanjing, China.,Department of Pathology, Anatomy and Cell Biology, Thomas Jefferson University, Philadelphia, PA, USA
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77
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Chen G, Shi Y, Zhang Y, Sun J. CircRNA_100782 regulates pancreatic carcinoma proliferation through the IL6-STAT3 pathway. Onco Targets Ther 2017; 10:5783-5794. [PMID: 29255366 PMCID: PMC5722018 DOI: 10.2147/ott.s150678] [Citation(s) in RCA: 105] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Circular RNAs (circRNAs) are a novel class of noncoding RNAs that play an important role in cancer. However, the mechanisms by which circRNAs regulate gene expression in pancreatic ductal adenocarcinoma (PDAC) remain unclear. This study seeks to elucidate the role that circRNAs play in the proliferation of PDAC cells. On the basis of previous studies of circRNA expression profiles in PDAC, we found that the circRNA_100782 was markedly upregulated in PDAC tissue. Functional experiments revealed that circRNA_100782 down-regulation inhibited BxPC3 cell proliferation and colony formation. Loss-of-function studies showed that knockdown of circRNA_100782 inhibited cell proliferation by downregulating the microRNA-124 (miR-124) target genes interleukin-6 receptor (IL6R) and signal transducer and activator of transcription 3 (STAT3). Overexpression of miR-124 also inhibited BxPC3 cell proliferation by reducing the expression of IL6R and STAT3, which was consistent with the result of silencing circRNA_100782. In addition, luciferase assay revealed that miR-124 was a direct target of circRNA_100782. Silencing STAT3 inhibited BxPC3 cell proliferation and colony formation. Cell viability was reduced in BxPC3 cells treated with si-circRNA_100782 and miR-124 mimic, and this effect could be attenuated by activating STAT3. In vivo study validated that circRNA_100782 knockdown suppressed BxPC3 xenografts in nude mice. Taken together, these results suggest that circRNA_100782 regulates BxPC3 cell proliferation by acting as miR-124 sponge through the IL6–STAT3 pathway.
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Affiliation(s)
- Genwen Chen
- Department of Gastroenterology, Zhongshan Hospital, Fudan University, Shanghai
| | - Yanting Shi
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yu Zhang
- Department of Gastroenterology, Zhongshan Hospital, Fudan University, Shanghai
| | - Jianyong Sun
- Department of Gastroenterology, Zhongshan Hospital, Fudan University, Shanghai
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78
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Nardone S, Sams DS, Zito A, Reuveni E, Elliott E. Dysregulation of Cortical Neuron DNA Methylation Profile in Autism Spectrum Disorder. Cereb Cortex 2017; 27:5739-5754. [PMID: 29028941 PMCID: PMC6346295 DOI: 10.1093/cercor/bhx250] [Citation(s) in RCA: 100] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Revised: 08/13/2017] [Accepted: 09/06/2017] [Indexed: 01/20/2023] Open
Abstract
Autism Spectrum Disorder (ASD) is a complex neuropsychiatric syndrome whose etiology includes genetic and environmental components. Since epigenetic marks are sensitive to environmental insult, they may be involved in the development of ASD. Initial brain studies have suggested a dysregulation of epigenetic marks in ASD. However, due to cellular heterogeneity in the brain, these studies have not determined if there is a true change in the neuronal epigenetic signature. Here, we report a genome-wide methylation study on fluorescence-activated cell sorting-sorted neuronal nuclei from the frontal cortex of 16 male ASD and 15 male control subjects. Using the 450 K BeadArray, we identified 58 differentially methylated regions (DMRs) that included loci associated to GABAergic system genes, particularly ABAT and GABBR1, and brain-specific MicroRNAs. Selected DMRs were validated by targeted Next Generation Bisulfite Sequencing. Weighted gene correlation network analysis detected 3 co-methylation modules which are significantly correlated to ASD that were enriched for genomic regions underlying neuronal, GABAergic, and immune system genes. Finally, we determined an overlap of the 58 ASD-related DMRs with neurodevelopment associated DMRs. This investigation identifies alterations in the DNA methylation pattern in ASD cortical neurons, providing further evidence that epigenetic alterations in disorder-relevant tissues may be involved in the biology of ASD.
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Affiliation(s)
- Stefano Nardone
- Bar Ilan University Faculty of Medicine, Hanrietta Sold 8, Safed 13215, Israel
| | - Dev Sharan Sams
- Bar Ilan University Faculty of Medicine, Hanrietta Sold 8, Safed 13215, Israel
| | - Antonino Zito
- Department of Twin Research and Genetic Epidemiology, King’s College London, London SE1 7EH, UK
| | - Eli Reuveni
- Bar Ilan University Faculty of Medicine, Hanrietta Sold 8, Safed 13215, Israel
| | - Evan Elliott
- Bar Ilan University Faculty of Medicine, Hanrietta Sold 8, Safed 13215, Israel
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79
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The lncRNA XIST interacts with miR-140/miR-124/iASPP axis to promote pancreatic carcinoma growth. Oncotarget 2017; 8:113701-113718. [PMID: 29371940 PMCID: PMC5768357 DOI: 10.18632/oncotarget.22555] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Accepted: 06/20/2017] [Indexed: 12/30/2022] Open
Abstract
Long non-coding RNA (lncRNA) X-inactive specific transcript (XIST) is involved in the development and progression of many tumors. In this study, XIST was specifically upregulated in pancreatic carcinoma tissues and cell lines; a higher XIST expression was correlated to poorer clinicopathologic features. After XIST knockdown, the proliferation of PC cell lines was suppressed and cell cycle stagnated in G1 phase; XIST knockdown also reduced the protein levels of inhibitor of apoptosis-stimulating protein of p53 (iASPP) and Cyclin-dependent kinase 1 (CDK1), increased the protein level of P21, a potent CDK inhibitor. In PC cell lines, XIST and miR-140/miR-124, two tumor-associated miRNAs, could inversely regulate each other, respectively; miR-140/miR-124 could bind to XIST and the 3’UTR of PPP1R13L, respectively. XIST and miR-140/miR-124 exerted opposite effects on iASPP, CDK1, P21 and P27 proteins; whereas the effects of LV-sh-XIST on the indicated protein levels could be partially reversed by miR-140 and/or miR-124 inhibitor. In PC tissues, miR-140 and miR-124 expression was down-regulated, iASPP and CDK1 mRNA expression was up-regulated. XIST positively correlated with iASPP and CDK1, inversely correlated with miR-140 and miR-124, respectively. Taken together, our data indicated that XIST might be an oncogenic lncRNA that promoted proliferation of PC cell line through inhibiting miR-140/miR-124 expression and promoting cell cycle-related factor expression, and could be regarded as a therapeutic target in human pancreatic carcinoma.
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80
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Collateral Damage Intended-Cancer-Associated Fibroblasts and Vasculature Are Potential Targets in Cancer Therapy. Int J Mol Sci 2017; 18:ijms18112355. [PMID: 29112161 PMCID: PMC5713324 DOI: 10.3390/ijms18112355] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Revised: 10/25/2017] [Accepted: 11/02/2017] [Indexed: 02/07/2023] Open
Abstract
After oncogenic transformation, tumor cells rewire their metabolism to obtain sufficient energy and biochemical building blocks for cell proliferation, even under hypoxic conditions. Glucose and glutamine become their major limiting nutritional demands. Instead of being autonomous, tumor cells change their immediate environment not only by their metabolites but also by mediators, such as juxtacrine cell contacts, chemokines and other cytokines. Thus, the tumor cells shape their microenvironment as well as induce resident cells, such as fibroblasts and endothelial cells (ECs), to support them. Fibroblasts differentiate into cancer-associated fibroblasts (CAFs), which produce a qualitatively and quantitatively different extracellular matrix (ECM). By their contractile power, they exert tensile forces onto this ECM, leading to increased intratumoral pressure. Moreover, along with enhanced cross-linkage of the ECM components, CAFs thus stiffen the ECM. Attracted by tumor cell- and CAF-secreted vascular endothelial growth factor (VEGF), ECs sprout from pre-existing blood vessels during tumor-induced angiogenesis. Tumor vessels are distinct from EC-lined vessels, because tumor cells integrate into the endothelium or even mimic and replace it in vasculogenic mimicry (VM) vessels. Not only the VM vessels but also the characteristically malformed EC-lined tumor vessels are typical for tumor tissue and may represent promising targets in cancer therapy.
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81
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Jin H, Li Q, Cao F, Wang SN, Wang RT, Wang Y, Tan QY, Li CR, Zou H, Wang D, Xu CX. miR-124 Inhibits Lung Tumorigenesis Induced by K-ras Mutation and NNK. MOLECULAR THERAPY-NUCLEIC ACIDS 2017; 9:145-154. [PMID: 29246293 PMCID: PMC5633347 DOI: 10.1016/j.omtn.2017.09.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Revised: 09/12/2017] [Accepted: 09/12/2017] [Indexed: 01/22/2023]
Abstract
Dysregulated miRNAs play important role in K-ras mutation or smoking caused lung tumorigenesis. Here, we investigate the role and mechanism of miR-124 in K-ras mutation or smoking-caused lung tumorigenesis and evaluate the therapeutic potential of miR-124 agomiR in K-ras mutation or smoking-caused lung cancer treatment. Our data show that smoking suppresses miR-124 expression, and decreased miR-124 expression is inversely correlated with the p-Akt level and predicts poor overall survival in non-small-cell lung cancer (NSCLC) patients. The overexpression of miR-124 suppressed NSCLC growth by inhibiting the Akt pathway by targeting Akt1 and Akt2. In addition, the systemic delivery of miR-124 agomiR dramatically suppressed tumorigenesis in both NNK-induced lung cancer model and K-rasLA1 transgenic mice by increasing apoptosis and inhibiting cell proliferation. Our findings suggest that smoking inhibits the expression of miR-124, and decreased miR-124 contributes to Akt activation, thereby promoting NSCLC progression. Our findings also represent a novel potential therapeutic strategy for lung cancer.
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Affiliation(s)
- Hua Jin
- Department of Thoracic Surgery, Daping Hospital and Research Institute of Surgery, Third Military Medical University, Chongqing 400042, China; Department of Pharmaceutical Science, College of Pharmacy, University of South Florida, Tampa, FL 33612, USA
| | - Qing Li
- Cancer Center, Daping Hospital and Research Institute of Surgery, Third Military Medical University, Chongqing 400042, China
| | - Fenghao Cao
- Helong City Hospital of Traditional Chinese Medicine, Helong 133500, China
| | - Shu-Nan Wang
- Department of Radiology, Daping Hospital and Research Institute of Surgery, Third Military Medical University, Chongqing 400042, China
| | - Ren-Tao Wang
- Department of Respiratory, The General Hospital of Chinese People's Liberation Army, Beijing 100853, China
| | - Yun Wang
- Department of Pathology, The General Hospital of Chinese People's Liberation Army, Beijing 100853, China
| | - Qun-You Tan
- Department of Thoracic Surgery, Daping Hospital and Research Institute of Surgery, Third Military Medical University, Chongqing 400042, China
| | - Cheng-Run Li
- Department of Thoracic Surgery, The General Hospital of Chinese People's Liberation Army, Beijing 100853, China
| | - Hua Zou
- Cancer Center, Daping Hospital and Research Institute of Surgery, Third Military Medical University, Chongqing 400042, China
| | - Dong Wang
- Cancer Center, Daping Hospital and Research Institute of Surgery, Third Military Medical University, Chongqing 400042, China
| | - Cheng-Xiong Xu
- Cancer Center, Daping Hospital and Research Institute of Surgery, Third Military Medical University, Chongqing 400042, China.
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82
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Zare M, Bastami M, Solali S, Alivand MR. Aberrant miRNA promoter methylation and EMT‐involving miRNAs in breast cancer metastasis: Diagnosis and therapeutic implications. J Cell Physiol 2017; 233:3729-3744. [DOI: 10.1002/jcp.26116] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2017] [Accepted: 08/01/2017] [Indexed: 12/19/2022]
Affiliation(s)
- Maryam Zare
- Department of BiologyPayame Noor UniversityTehranIran
| | - Milad Bastami
- Drug Applied Research CenterTabriz University of Medical SciencesTabrizIran
- Department of Medical GeneticsFaculty of Medicine, Tabriz University of Medical SciencesTabrizIran
| | - Saeed Solali
- Department of HematologyFaculty of Medicine, Tabriz University of Medical SciencesTabrizIran
- Immunology Research CenterTabriz University of Medical SciencesTabrizIran
| | - Mohammad Reza Alivand
- Drug Applied Research CenterTabriz University of Medical SciencesTabrizIran
- Department of Medical GeneticsFaculty of Medicine, Tabriz University of Medical SciencesTabrizIran
- Stem Cell Research CenterTabriz University of Medical SciencesTabrizIran
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83
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Liu C, Fu X, Zhong Z, Zhang J, Mou H, Wu Q, Sheng T, Huang B, Zou Y. CHD1L Expression Increases Tumor Progression and Acts as a Predictive Biomarker for Poor Prognosis in Pancreatic Cancer. Dig Dis Sci 2017. [PMID: 28646284 DOI: 10.1007/s10620-017-4641-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND The chromodomain helicase/ATPase DNA binding protein 1-like gene (CHD1L) plays a key role in controlling various cellular phenomena, including immune-mediated inflammation, transformation, apoptosis, cell cycle progression, and proliferation. METHODS This study investigated the function and clinical significance of CHD1L protein expression in pancreatic cancer (PC). We analyzed CHD1L expression in surgical specimens from 112 PC patients. The correlation between the clinical characteristics and prognosis was also determined. Futhermore, cell proliferation were measured using EDU, and a molecular mechanism of Wnt/β-catenin pathway regulation by CHD1L was explored. RESULT CHD1L protein expression was significantly higher in PC patients with regard to the tumor grade, stage, size, differentiation and lymph node status. Increased CHD1L protein expression was significantly associated with poor overall survival. Multivariate analyses revealed that high CHD1L expression was an independent predictive marker for the recurrence and poor prognosis of pancreatic cancer. Furthermore, silencing of CHD1L expression by RNAi effectively abolished the proliferative abilities of CHD1L in vivo and in vitro. We found that the Wnt/β-catenin pathway contributed to the effect of CHD1L-mediated pancreatic cancer proliferation. CONCLUSION Taken together, our data provide a novel evidence for the biological and clinical significance of CHD1L as a potential biomarker, and we demonstrate that CHD1L-Wnt/β-catenin might be a novel pathway involved in pancreatic cancer progression.
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Affiliation(s)
- Chuan Liu
- Jiangxi Province Key Laboratory of Molecular Medicine, The Second Affiliated Hospital of Nanchang University, No. 1 Min De Road, Nanchang, 330006, China
| | - Xiaowei Fu
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital of Nanchang University, No. 1 Min De Road, Nanchang, 330006, China
| | - Zhiwei Zhong
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital of Nanchang University, No. 1 Min De Road, Nanchang, 330006, China
| | - Jing Zhang
- Department of Clinical Laboratory, The Second Affiliated Hospital of Nanchang University, No. 1 Min De Road, Nanchang, 330006, China
| | - Haiyan Mou
- Jiangxi Province Key Laboratory of Molecular Medicine, The Second Affiliated Hospital of Nanchang University, No. 1 Min De Road, Nanchang, 330006, China
| | - Qiong Wu
- Department of Clinical Laboratory, The Second Affiliated Hospital of Nanchang University, No. 1 Min De Road, Nanchang, 330006, China
| | - Tianle Sheng
- Jiangxi Province Key Laboratory of Molecular Medicine, The Second Affiliated Hospital of Nanchang University, No. 1 Min De Road, Nanchang, 330006, China
| | - Bo Huang
- Department of Clinical Laboratory, The Second Affiliated Hospital of Nanchang University, No. 1 Min De Road, Nanchang, 330006, China.
| | - Yeqing Zou
- Jiangxi Province Key Laboratory of Molecular Medicine, The Second Affiliated Hospital of Nanchang University, No. 1 Min De Road, Nanchang, 330006, China.
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84
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Wang H, Zhang TT, Jin S, Liu H, Zhang X, Ruan CG, Wu DP, Han Y, Wang XQ. Pyrosequencing quantified methylation level of miR-124 predicts shorter survival for patients with myelodysplastic syndrome. Clin Epigenetics 2017; 9:91. [PMID: 28861128 PMCID: PMC5577794 DOI: 10.1186/s13148-017-0388-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Accepted: 08/14/2017] [Indexed: 01/22/2023] Open
Abstract
Background Aberrant CpG island methylation has been increasingly recognized as a common event in myelodysplastic syndrome (MDS). To date, most of the previous studies of miR-124 in MDS have focused on epigenetic changes and little is known about the underlying mechanism through which miR-124 regulates CDK6 expression. Results In the present study, we employed pyrosequencing analysis to quantify the methylation levels of upstream regions of the miR-124 genes (miR-124-1, miR-124-2 and miR-124-3) in 56 primary MDS patients. We found the three miR-124 genes were methylated in MDS patients. Univariate analysis revealed that the World Health Organization (WHO) classification, marrow blast count, karyotype, International Prognostic Scoring System (IPSS), mean corpuscular volume, as well as high methylation of miR-124-1, miR-124-2 and miR-124-3 were significantly related to overall survival. In leukaemia-free survival, patients who were older and had an advanced WHO classification, high marrow blast counts, high IPSS risk and high methylation of miR-124-1 and miR-124-2 progressed rapidly to acute myeloid leukaemia. Multivariate analysis demonstrated that high methylation of miR-124-3 was an independent factor of overall survival. Median survival of patients with high miR-124-3 methylation was significantly shorter (7.6 months) than patients with low methylation (32.7 months; P = 0.010). A functional study revealed that silencing of miR-124 resulted in upregulation of its target gene, cyclin dependent kinase CDK6, which in turn promoted cell proliferation in the MDS cell line SKM-1. Conclusions High methylation of miR-124-3 predicts shorter survival for patients with MDS, which may be a useful prognostic marker in MDS. Electronic supplementary material The online version of this article (doi:10.1186/s13148-017-0388-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Hong Wang
- Jiangsu Institute of Haematology, Institute of Blood and Marrow Transplantation, Department of Haematology, Collaborative Innovation of Haematology, Key Laboratory of Thrombosis and Hemostasis of Ministry of Health, The First Affiliated Hospital of Soochow University, 188 Shi Zi Street, Suzhou, 215000 China
| | - Tong-Tong Zhang
- Jiangsu Institute of Haematology, Institute of Blood and Marrow Transplantation, Department of Haematology, Collaborative Innovation of Haematology, Key Laboratory of Thrombosis and Hemostasis of Ministry of Health, The First Affiliated Hospital of Soochow University, 188 Shi Zi Street, Suzhou, 215000 China
| | - Song Jin
- Jiangsu Institute of Haematology, Institute of Blood and Marrow Transplantation, Department of Haematology, Collaborative Innovation of Haematology, Key Laboratory of Thrombosis and Hemostasis of Ministry of Health, The First Affiliated Hospital of Soochow University, 188 Shi Zi Street, Suzhou, 215000 China
| | - Hong Liu
- Jiangsu Institute of Haematology, Institute of Blood and Marrow Transplantation, Department of Haematology, Collaborative Innovation of Haematology, Key Laboratory of Thrombosis and Hemostasis of Ministry of Health, The First Affiliated Hospital of Soochow University, 188 Shi Zi Street, Suzhou, 215000 China
| | - Xiang Zhang
- Jiangsu Institute of Haematology, Institute of Blood and Marrow Transplantation, Department of Haematology, Collaborative Innovation of Haematology, Key Laboratory of Thrombosis and Hemostasis of Ministry of Health, The First Affiliated Hospital of Soochow University, 188 Shi Zi Street, Suzhou, 215000 China
| | - Chang-Geng Ruan
- Jiangsu Institute of Haematology, Institute of Blood and Marrow Transplantation, Department of Haematology, Collaborative Innovation of Haematology, Key Laboratory of Thrombosis and Hemostasis of Ministry of Health, The First Affiliated Hospital of Soochow University, 188 Shi Zi Street, Suzhou, 215000 China
| | - De-Pei Wu
- Jiangsu Institute of Haematology, Institute of Blood and Marrow Transplantation, Department of Haematology, Collaborative Innovation of Haematology, Key Laboratory of Thrombosis and Hemostasis of Ministry of Health, The First Affiliated Hospital of Soochow University, 188 Shi Zi Street, Suzhou, 215000 China
| | - Yue Han
- Jiangsu Institute of Haematology, Institute of Blood and Marrow Transplantation, Department of Haematology, Collaborative Innovation of Haematology, Key Laboratory of Thrombosis and Hemostasis of Ministry of Health, The First Affiliated Hospital of Soochow University, 188 Shi Zi Street, Suzhou, 215000 China
| | - Xiao-Qin Wang
- Department of Haematology, Huashan Hospital of Fudan University, 12 Wulumuqi Road Central, Shanghai, 200040 China
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85
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Starkey MP, Compston-Garnett L, Malho P, Dunn K, Dubielzig R. Metastasis-associated microRNA expression in canine uveal melanoma. Vet Comp Oncol 2017; 16:81-89. [PMID: 28512868 DOI: 10.1111/vco.12315] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Revised: 03/01/2017] [Accepted: 03/22/2017] [Indexed: 12/17/2022]
Abstract
BACKGROUND Uveal melanoma (UM) is the most common primary intraocular tumour in dogs. There is no effective means of predicting whether a tumour will metastasize. microRNA (miRNA) metastasis signatures have been identified for several human cancers, including UM. AIMS In this study we investigated whether metastasizing and non-metastasizing canine UMs can be distinguished by miRNA expression levels. MATERIALS AND METHODS miRNA microarray profiling was used to compare miRNA expression in 8 metastasizing and 12 non-metastasizing formalin-fixed, paraffin-embedded (FFPE) primary UM biopsies. RESULTS Fourteen miRNAs exhibited statistically significant differences in expression between the metastasizing and non-metastasizing tumours. Class prediction analysis pinpointed 9 miRNAs which categorized tumours as metastasizing or non-metastasizing with an accuracy of 89%. Of the discriminating miRNAs, 8 were up-regulated in metastasizing UM, and included 3 miRNAs implicated as potential "metastasis activators" in human cutaneous melanoma. The expression of 4 of the miRNAs was subsequently measured using the quantitative reverse transcription polymerase chain reaction (RT-qPCR), and their up-regulation in metastasizing tumours validated. CONCLUSION miRNA expression profiles may potentially be used to identify UMs that will metastasize, and miRNAs that are up-regulated in metastasizing tumours may be targets for therapeutic intervention.
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Affiliation(s)
- M P Starkey
- Molecular Oncology Group, Animal Health Trust, Newmarket, UK
| | | | - P Malho
- Comparative Ophthalmology Unit, Animal Health Trust, Newmarket, UK
| | - K Dunn
- FOCUS-EyePathLab, Murarrie, Australia
| | - R Dubielzig
- Comparative Ocular Pathology Laboratory, University of Wisconsin-Madison, Madison, Wisconsin
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86
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Melzer C, Hass R, von der Ohe J, Lehnert H, Ungefroren H. The role of TGF-β and its crosstalk with RAC1/RAC1b signaling in breast and pancreas carcinoma. Cell Commun Signal 2017; 15:19. [PMID: 28499439 PMCID: PMC5429551 DOI: 10.1186/s12964-017-0175-0] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Accepted: 05/08/2017] [Indexed: 12/14/2022] Open
Abstract
This article focusses on the role of TGF-β and its signaling crosstalk with the RHO family GTPases RAC1 and RAC1b in the progression of breast and pancreatic carcinoma. The aggressive nature of these tumor types is mainly due to metastatic dissemination. Metastasis is facilitated by desmoplasia, a peculiar tumor microenvironment and the ability of the tumor cells to undergo epithelial-mesenchymal transition (EMT) and to adopt a motile and invasive phenotype. These processes are controlled entirely or in part by TGF-β and the small RHO GTPase RAC1 with both proteins acting as tumor promoters in late-stage cancers. Data from our and other studies point to signaling crosstalk between TGF-β and RAC1 and the related isoform, RAC1b, in pancreatic and mammary carcinoma cells. Based on the exciting observation that RAC1b functions as an endogenous inhibitor of RAC1, we propose a model on how the relative abundance or activity of RAC1 and RAC1b in the tumor cells may determine their responses to TGF-β and, ultimately, the metastatic capacity of the tumor.
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Affiliation(s)
- Catharina Melzer
- Biochemistry and Tumor Biology Lab, Department of Obstetrics and Gynecology, Hannover Medical School, Hannover, Germany
| | - Ralf Hass
- Biochemistry and Tumor Biology Lab, Department of Obstetrics and Gynecology, Hannover Medical School, Hannover, Germany
| | - Juliane von der Ohe
- Biochemistry and Tumor Biology Lab, Department of Obstetrics and Gynecology, Hannover Medical School, Hannover, Germany
| | - Hendrik Lehnert
- Center of Brain, Behavior and Metabolism (CBBM), University of Lübeck, Campus Lübeck, Ratzeburger Allee 160, 23538, Lübeck, Germany.,First Department of Medicine, University Hospital Schleswig-Holstein (UKSH), Campus Lübeck, Ratzeburger Allee 160, 23538, Lübeck, Germany
| | - Hendrik Ungefroren
- Center of Brain, Behavior and Metabolism (CBBM), University of Lübeck, Campus Lübeck, Ratzeburger Allee 160, 23538, Lübeck, Germany. .,First Department of Medicine, University Hospital Schleswig-Holstein (UKSH), Campus Lübeck, Ratzeburger Allee 160, 23538, Lübeck, Germany. .,Department of General and Thoracic Surgery, UKSH, Campus Kiel, Kiel, Germany.
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87
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Xiong DD, Lv J, Wei KL, Feng ZB, Chen JT, Liu KC, Chen G, Luo DZ. A nine-miRNA signature as a potential diagnostic marker for breast carcinoma: An integrated study of 1,110 cases. Oncol Rep 2017; 37:3297-3304. [PMID: 28440475 DOI: 10.3892/or.2017.5600] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Accepted: 11/14/2016] [Indexed: 11/05/2022] Open
Abstract
Growing evidence indicates that microRNAs (miRNAs) play critical roles in the initiation and progression of breast carcinoma (BC) and are promising diagnostic biomarkers. In the present study, we aimed to identify a multi-marker miRNA pool with high diagnostic performance for BC. We collected miRNA expression profiles of BC samples and normal breast tissues from The Cancer Genome Atlas (TCGA) and screened differentially expressed miRNAs by conducting two‑sample t-tests and by calculating log2 fold-change (log2FC) ratios. Statistical significance was established at p<0.001 and |log2FC| >1. Then, we generated receiver operating characteristic (ROC) curves, calculated the area under the curve (AUC) with a 95% confidence interval (95% CI), and calculated the diagnostic sensitivity and specificity using MedCalc software. Additionally, we predicted the targets of candidate miRNAs using 10 online databases: TarBase, miRTarBase, TargetScan, TargetMiner, microRNA.org, RNA22, PicTar-vert, miRDB, PITA and PolymiRTS. Target genes that were predicted by at least four algorithms were chosen, and cooperative targets of multiple miRNAs were further selected for GO and KEGG pathway analyses through the DAVID online tool. Eventually, a total of 66 differentially expressed miRNAs were identified after miRNA expression profiles were analyzed in BC and normal breast samples. Of these, we selected nine dysregulated miRNAs as candidate diagnostic markers: seven upregulated miRNAs (hsa-miR-21, hsa-miR-96, hsa-miR-183, hsa-miR‑182, hsa-miR-141, hsa-miR-200a and hsa-miR-429) and two downregulated miRNAs (hsa-miR-139 and hsa-miR‑145). The ROC curve for the combination of these nine differently expressed miRNAs showed extremely high diagnostic accuracy, with an AUC of 0.995 (95% CI, 0.988‑0.999) and diagnostic sensitivity and specificity of 98.7 and 98.9%, respectively. In conclusion, the combination of these nine miRNAs significantly improved the accuracy of breast cancer diagnosis.
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Affiliation(s)
- Dan-Dan Xiong
- Department of Pathology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Jun Lv
- Department of Radiotherapy, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Kang-Lai Wei
- Department of Pathology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Zhen-Bo Feng
- Department of Pathology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Ji-Tian Chen
- Department of Pathology, People's Hospital of Ling Shan, Ling Shan, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Ke-Cheng Liu
- Department of Pathology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Gang Chen
- Department of Pathology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Dian-Zhong Luo
- Department of Pathology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
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Tian F, Chen J, Zheng S, Li D, Zhao X, Jiang P, Li J, Wang S. miR-124 targets GATA6 to suppress cholangiocarcinoma cell invasion and metastasis. BMC Cancer 2017; 17:175. [PMID: 28270130 PMCID: PMC5339982 DOI: 10.1186/s12885-017-3166-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Accepted: 03/02/2017] [Indexed: 01/03/2023] Open
Abstract
Background Our previous study showed that GATA6 plays important roles in cholangiocarcinoma (CCA) cell invasion and metastasis. However, the regulation mechanism of GATA6 in CCA is not clear. In this study, we studied the potential function of miR-124 in CCA and the mechanism of GATA6 regulation. Methods The expression levels of miR-124 and GATA6 in cancerous tissues from 57 CCA patients was detected by RT-PCR and IHC. The impact of miR-124 on GATA6 expression in CCA cells was evaluated using cell transfection, xenotransplantation into nude mice and a luciferase reporter assay. Results miR-124 was decreased in 57 cancerous tissue samples compared with 38 matched paracancerous samples. The miR-124 level was inversely associated with lymph node involvement and distant metastasis. miR-124 significantly inhibited invasion and migration of CCA cells in vitro. Furthermore, miR-124 inhibited CCA cell metastasis in nude mice. miR-124 inhibited the luciferase activity of reporter genes containing the wild-type GATA6 3′-UTR, which was abrogated by mutation of the binding site. The protein levels of GATA6 were negatively regulated by miR-124. miR-124 expression was inversely associated with GATA6 in 57 cancerous samples. The miR-124-induced suppression of CCA invasion was abrogated by remedial expression of GATA6. GATA6 expression was decreased by miR-124 overexpression in liver masses from nude mice. Conclusions Our data suggested that miR-124 decreases GATA6 expression by targeting its 3′-UTR, which in turn inhibits CCA invasion and metastasis. Electronic supplementary material The online version of this article (doi:10.1186/s12885-017-3166-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Feng Tian
- Institute of Hepatobiliary Surgery, Southwest Hospital, Third Military Medical University, No. 29 Gaotanyan Street, Shapingba District, Chongqing, 400038, China
| | - Jian Chen
- Institute of Hepatobiliary Surgery, Southwest Hospital, Third Military Medical University, No. 29 Gaotanyan Street, Shapingba District, Chongqing, 400038, China
| | - Shuguo Zheng
- Institute of Hepatobiliary Surgery, Southwest Hospital, Third Military Medical University, No. 29 Gaotanyan Street, Shapingba District, Chongqing, 400038, China
| | - Dajiang Li
- Institute of Hepatobiliary Surgery, Southwest Hospital, Third Military Medical University, No. 29 Gaotanyan Street, Shapingba District, Chongqing, 400038, China
| | - Xin Zhao
- Institute of Hepatobiliary Surgery, Southwest Hospital, Third Military Medical University, No. 29 Gaotanyan Street, Shapingba District, Chongqing, 400038, China
| | - Peng Jiang
- Institute of Hepatobiliary Surgery, Southwest Hospital, Third Military Medical University, No. 29 Gaotanyan Street, Shapingba District, Chongqing, 400038, China
| | - Jianwei Li
- Institute of Hepatobiliary Surgery, Southwest Hospital, Third Military Medical University, No. 29 Gaotanyan Street, Shapingba District, Chongqing, 400038, China.
| | - Shuguang Wang
- Institute of Hepatobiliary Surgery, Southwest Hospital, Third Military Medical University, No. 29 Gaotanyan Street, Shapingba District, Chongqing, 400038, China
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Abstract
microRNAs (miRNAs) and DNA methylation are the 2 epigenetic modifications that have emerged in recent years as the most critical players in the regulation of gene expression. Compelling evidence has indicated the roles of miRNAs and DNA methylation in modulating cellular transformation and tumorigenesis. miRNAs act as negative regulators of gene expression and are involved in the regulation of both physiologic conditions and during diseases, such as cancer, inflammatory diseases, and psychiatric disorders, among others. Meanwhile, aberrant DNA methylation manifests in both global genome changes and in localized gene promoter changes, which influences the transcription of cancer genes. In this review, we described the mutual regulation of miRNAs and DNA methylation in human cancers. miRNAs regulate DNA methylation by targeting DNA methyltransferases or methylation-related proteins. On the other hand, both hyper- and hypo-methylation of miRNAs occur frequently in human cancers and represent a new level of complexity in gene regulation. Therefore, understanding the mechanisms underlying the mutual regulation of miRNAs and DNA methylation may provide helpful insights in the development of efficient therapeutic approaches.
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Affiliation(s)
- Sumei Wang
- a Department of Oncology , Guangdong Provincial Hospital of Chinese Medicine , Guangzhou, Guangdong , P. R. China.,b Department of Systems Biology , The University of Texas MD Anderson Cancer Center , Houston , TX , USA
| | - Wanyin Wu
- a Department of Oncology , Guangdong Provincial Hospital of Chinese Medicine , Guangzhou, Guangdong , P. R. China
| | - Francois X Claret
- b Department of Systems Biology , The University of Texas MD Anderson Cancer Center , Houston , TX , USA.,c Experimental Therapeutics Academic Program and Cancer Biology Program , The University of Texas Graduate School of Biomedical Sciences at Houston , Houston , TX , USA
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Abstract
MicroRNAs (miRNAs) are small noncoding RNAs that regulate gene expression mainly at the posttranscriptional level. Similar to protein-coding genes, their expression is also controlled by genetic and epigenetic mechanisms. Disruption of these control processes leads to abnormal expression of miRNAs in cancer. In this chapter, we discuss the supportive links between miRNAs and epigenetics in the context of carcinogenesis. miRNAs can be epigenetically regulated by DNA methylation and/or specific histone modifications. However, they can themselves (epi-miRNAs) repress key enzymes that drive epigenetic remodeling and also bind to complementary sequences in gene promoters, recruiting specific protein complexes that modulate chromatin structure and gene expression. All these issues affect the transcriptional landscape of cells. Most important, in the cancer clinical scenario, knowledge about miRNAs epigenetic dysregulation can not only be beneficial as a prognostic biomarker, but can also help in the design of new therapeutic approaches.
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Affiliation(s)
- Catia Moutinho
- Cancer Epigenetics and Biology Program (PEBC), Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Catalonia, Spain
| | - Manel Esteller
- Cancer Epigenetics and Biology Program (PEBC), Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Catalonia, Spain; Institució Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Catalonia, Spain; School of Medicine and Health Sciences, University of Barcelona (UB), Catalonia, Spain.
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91
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Ren K, Li Y, Lu H, Li Z, Han X. miR-3940-5p Functions as a Tumor Suppressor in Non-Small Cell Lung Cancer Cells by Targeting Cyclin D1 and Ubiquitin Specific Peptidase-28. Transl Oncol 2016; 10:80-89. [PMID: 27988424 PMCID: PMC5167246 DOI: 10.1016/j.tranon.2016.11.004] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2016] [Revised: 11/08/2016] [Accepted: 11/14/2016] [Indexed: 01/23/2023] Open
Abstract
miR-3940-5p level was lower in non–small cell lung cancer (NSCLC) tumor tissues than that in the matched tumor-adjacent tissues and correlated with clinicopathological features. Cyclin D1 (CCND1), a key driver of malignant transformation in NSCLC, was overexpressed in many cancers, including NSCLC. The ubiquitin specific peptidase-28 (USP28) was also overexpressed in NSCLC and associated with poor prognosis of NSCLC patients. We searched for miR-3940-5p targets by using TargetScan and miRanda online tools and found that CCND1 and USP28 were potential targets of miR-3940-5p. Based on these findings, we speculated that miR-3940-5p might target CCND1 and USP28 to inhibit NSCLC growth. We determined the expression of miR-3940-5p, CCND1, and USP28 by quantitative real-time polymerase chain reaction and Western blot assays, respectively, and found downregulation of miR-3940-5p and upregulation of CCND1 and USP28 in NSCLC tissues and cell lines. Cell proliferation and apoptosis assays showed that miR-3940-5p suppressed proliferation and promoted apoptosis in NSCLC cells, and silencing CCND1 and USP28 both recapitulated the effects of miR-3940-5p on NSCLC cells. Furthermore, we verified that CCND1 and USP28 were direct targets of miR-3940-5p and also found that the effects of NSCLC cell proliferation and apoptosis by miR-3940-5p were attenuated by overexpression of CCND1 or USP28. The animal experiments also showed that overexpression of miR-3940-5p inhibited the growth of NSCLC tumors in vivo. These results confirmed our speculation that miR-3940-5p inhibits proliferation and induces apoptosis in NSCLC cells by targeting CCND1 and USP28. These findings facilitate a better understanding of the molecular mechanisms underlying NSCLC initiation and progression and provide promising diagnostic markers and therapeutic targets for NSCLC.
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Affiliation(s)
- Kewei Ren
- Department of Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, PR China; Interventional Institute of Zhengzhou University, Zhengzhou 450052, PR China; Interventional Treatment and Clinical Research Center of Henan Province, Zhengzhou 450052, PR China
| | - Yahua Li
- Department of Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, PR China; Interventional Institute of Zhengzhou University, Zhengzhou 450052, PR China; Interventional Treatment and Clinical Research Center of Henan Province, Zhengzhou 450052, PR China
| | - Huibin Lu
- Department of Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, PR China; Interventional Institute of Zhengzhou University, Zhengzhou 450052, PR China; Interventional Treatment and Clinical Research Center of Henan Province, Zhengzhou 450052, PR China
| | - Zongming Li
- Department of Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, PR China; Interventional Institute of Zhengzhou University, Zhengzhou 450052, PR China; Interventional Treatment and Clinical Research Center of Henan Province, Zhengzhou 450052, PR China
| | - Xinwei Han
- Department of Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, PR China; Interventional Institute of Zhengzhou University, Zhengzhou 450052, PR China; Interventional Treatment and Clinical Research Center of Henan Province, Zhengzhou 450052, PR China.
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92
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Sun B, Liu X, Gao Y, Li L, Dong Z. Downregulation of miR-124 predicts poor prognosis in pancreatic ductal adenocarcinoma patients. Br J Biomed Sci 2016; 73:152-157. [DOI: 10.1080/09674845.2016.1220706] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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93
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Li C, Zhao Z, Zhou Z, Liu R. Linc-ROR confers gemcitabine resistance to pancreatic cancer cells via inducing autophagy and modulating the miR-124/PTBP1/PKM2 axis. Cancer Chemother Pharmacol 2016; 78:1199-1207. [PMID: 27785603 DOI: 10.1007/s00280-016-3178-4] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Accepted: 10/12/2016] [Indexed: 01/02/2023]
Abstract
PURPOSE In this study, we investigated the regulation of linc-ROR on autophagy and gemcitabine resistance of pancreatic cancer cells and further studied the underlying involvement of the miR-124/PTBP1/PKM2 axis in this regulation. METHODS Pancreatic cancer cell lines PANC-1 and MIAPaCa-2 cells were used as in vitro model. Autophagy was assessed by western blot of LC3 I/II and observation GFP-LC3 puncta. Cell viability was examined using CCK-8 assay. Cell apoptosis was examined by flow cytometric analysis of Annexin V/PI staining. QRT-PCR, RNA fluorescence in situ hybridization and dual luciferase assay were used to study the expression and the binding between linc-ROR and miR-124. RESULTS Linc-ROR siRNA significantly sensitized PANC-1 and MIAPaCa-2 cells to gemcitabine, while linc-ROR overexpression significantly reduced the sensitivity. Linc-ROR knockdown reduced basal autophagy, while linc-ROR overexpression markedly increased basal autophagy in the cells. Linc-ROR siRNA showed similar effect as 3-MA on enhancing gemcitabine-induced cell apoptosis and also reduced PKM2 expression. MiR-124 overexpression restored PKM1 and reduced PKM2 levels in the cells. In addition, miR-124 mimics also alleviated autophagy in pancreatic cancer cells. Both miR-124 mimics and PKM2 siRNA enhanced gemcitabine-induced cell apoptosis. In both pancreatic cell lines and PADC tissues, linc-ROR is negatively correlated with miR-124 expression. In addition, dual luciferase assay verified two 8mer binding sites between miR-124 and linc-ROR. CONCLUSION Linc-ROR confers gemcitabine resistance to pancreatic cancer cells at least partly via inducing autophagy. There is a linc-ROR/miR-124/PTBP1/PKM2 axis involved in regulation of gemcitabine resistance in pancreatic cancer cells.
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Affiliation(s)
- Chenggang Li
- Department of Surgical Oncology, Chinese PLA General Hospital, 28 Fuxing Road, Beijing, 100853, China.
| | - Zhiming Zhao
- Department of Surgical Oncology, Chinese PLA General Hospital, 28 Fuxing Road, Beijing, 100853, China
| | - Zhipeng Zhou
- Department of Surgical Oncology, Chinese PLA General Hospital, 28 Fuxing Road, Beijing, 100853, China
| | - Rong Liu
- Department of Surgical Oncology, Chinese PLA General Hospital, 28 Fuxing Road, Beijing, 100853, China
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Previdi MC, Carotenuto P, Zito D, Pandolfo R, Braconi C. Noncoding RNAs as novel biomarkers in pancreatic cancer: what do we know? Future Oncol 2016; 13:443-453. [PMID: 27841659 PMCID: PMC5253462 DOI: 10.2217/fon-2016-0253] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Pancreatic cancer is an aggressive cancer of the digestive system, which is becoming a serious health problem worldwide. Overall survival for patients with pancreatic cancer is poor, mainly due to a lack of biomarkers to enable early diagnosis and a lack of prognostic markers that can inform decision-making, facilitating personalized treatment and an optimal clinical outcome. ncRNAs play an important role in pancreatic carcinogenesis. Here we review the literature on the role of ncRNAs as biomarkers in pancreatic cancer. We focus on the significance of ncRNAs as markers for early diagnosis, as prognostic biomarkers able to inform clinical management and as targets for novel therapeutics for patients with pancreatic cancer.
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Affiliation(s)
- Maria C Previdi
- Division of Cancer Therapeutics, The Institute of Cancer Research, 15 Cotswold Rd, Sutton, SM2 5NG, UK
| | - Pietro Carotenuto
- Division of Cancer Therapeutics, The Institute of Cancer Research, 15 Cotswold Rd, Sutton, SM2 5NG, UK
| | - Domenico Zito
- Division of Cancer Therapeutics, The Institute of Cancer Research, 15 Cotswold Rd, Sutton, SM2 5NG, UK
| | - Rosantony Pandolfo
- Division of Cancer Therapeutics, The Institute of Cancer Research, 15 Cotswold Rd, Sutton, SM2 5NG, UK
| | - Chiara Braconi
- Division of Cancer Therapeutics, The Institute of Cancer Research, 15 Cotswold Rd, Sutton, SM2 5NG, UK.,The Royal Marsden NHS Trust London & Surrey, Downs Rd, Sutton, SM2 5NG, UK
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MicroRNA in pancreatic adenocarcinoma: predictive/prognostic biomarkers or therapeutic targets? Oncotarget 2016; 6:23323-41. [PMID: 26259238 PMCID: PMC4695121 DOI: 10.18632/oncotarget.4492] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2015] [Accepted: 07/03/2015] [Indexed: 12/19/2022] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is a tumor with a poor prognosis, short overall survival and few chemotherapeutic choices. MicroRNAs (miRNAs) are non-coding, single-stranded RNAs of around 22 nucleotides involved in the pathogenic mechanisms of carcinogenesis and metastasis. They have been studied in many tumors in order to identify potential diagnostic, prognostic or therapeutic targets. In the current literature, many studies have analyzed the role of miRNAs in PDAC. In fact, the absence of appropriate biomarkers, the difficultly of early detection of this tumor, and the lack of effective chemotherapy in patients with unresectable disease have focused attention on miRNAs as new, interesting advance in this malignancy. In this review we analyzed the role of miRNAs in PDAC in order to understand the mechanisms of action and the difference between the onco-miRNA and the tumor suppressor miRNA. We also reviewed all the data related to the use of these molecules as predictive as well as prognostic biomarkers in the course of the disease. Finally, the possible therapeutic use of miRNAs or anti-miRNAs in PDAC is also discussed. In conclusion, although there is still no clinical application for these molecules in PDAC, it is our opinion that the preclinical evidence of the role of specific miRNAs in carcinogenesis, the possibility of using miRNAs as diagnostic or prognostic biomarkers, and their potential therapeutic role, warrant future studies in PDAC.
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Yue Q, Zhang Y, Li X, He L, Hu Y, Wang X, Xu X, Shen Y, Zhang H. MiR-124 suppresses the chemotactic migration of rat mesenchymal stem cells toward HGF by downregulating Wnt/β-catenin signaling. Eur J Cell Biol 2016; 95:342-53. [PMID: 27377850 DOI: 10.1016/j.ejcb.2016.06.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Revised: 05/18/2016] [Accepted: 06/18/2016] [Indexed: 12/14/2022] Open
Abstract
Mesenchymal stem cells (MSCs) exhibit the potential to repair a wide variety of injured adult tissues. The migration capability of MSCs is an important determinant of the efficiency of MSC transplant therapy. MicroRNAs (miRNAs) are increasingly implicated in regulating the migration of MSCs. Herein, we show that the expression of miR-124 was downregulated in rat MSCs (rMSCs) treated with hepatocyte growth factor (HGF). Overexpression of miR-124 significantly reduced the chemotactic migration of rMSCs toward HGF, while inhibition of endogenous miR-124 promoted the chemotactic migration. A further study revealed that miR-124 directly targeted FZD4 and LRP6, which encode a receptor and co-receptor of the Wnt/β-catenin signaling pathway, respectively, thus reducing the activity of this signaling. Consistently, activation of the Wnt/β-catenin signaling pathway by LiCl and ΔN89β-catenin rescued the inhibitory effect of miR-124 on the chemotactic migration of rMSCs toward HGF, while inhibition of Wnt/β-catenin signaling by FH535 abrogated the enhanced chemotactic response achieved by the miR-124 inhibitor. Collectively, our study demonstrates that miR-124 downregulates Wnt/β-catenin signaling via targeting FZD4 and LRP6 and thus suppresses the chemotactic migration of rMSCs toward HGF.
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Affiliation(s)
- Qing Yue
- Department of Cell Biology, Jiangsu Key Laboratory of Stem Cell Research, Medical College of Soochow University, Suzhou 215123, China
| | - Yu Zhang
- Department of Orthopedics, the Second Affiliated Hospital of Soochow University, Suzhou Jiangsu, China
| | - Xianyang Li
- Department of Cell Biology, Jiangsu Key Laboratory of Stem Cell Research, Medical College of Soochow University, Suzhou 215123, China
| | - Lihong He
- Department of Cell Biology, Jiangsu Key Laboratory of Stem Cell Research, Medical College of Soochow University, Suzhou 215123, China
| | - Ya'nan Hu
- Department of Cell Biology, Jiangsu Key Laboratory of Stem Cell Research, Medical College of Soochow University, Suzhou 215123, China
| | - Xianyao Wang
- Department of Cell Biology, Jiangsu Key Laboratory of Stem Cell Research, Medical College of Soochow University, Suzhou 215123, China
| | - Xiaojing Xu
- Department of Cell Biology, Jiangsu Key Laboratory of Stem Cell Research, Medical College of Soochow University, Suzhou 215123, China
| | - Yixin Shen
- Department of Orthopedics, the Second Affiliated Hospital of Soochow University, Suzhou Jiangsu, China
| | - Huanxiang Zhang
- Department of Cell Biology, Jiangsu Key Laboratory of Stem Cell Research, Medical College of Soochow University, Suzhou 215123, China.
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Kim YH, Lee WK, Lee EB, Son JW, Kim DS, Park JY. Combined Effect of Metastasis-Related MicroRNA, miR-34 and miR-124 Family, Methylation on Prognosis of Non-Small-Cell Lung Cancer. Clin Lung Cancer 2016; 18:e13-e20. [PMID: 27444357 DOI: 10.1016/j.cllc.2016.06.005] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Revised: 06/14/2016] [Accepted: 06/14/2016] [Indexed: 01/22/2023]
Abstract
BACKGROUND Many patients with non-small-cell lung cancer (NSCLC) still develop tumor metastasis and recurrence after pulmonary resection and are the primary causes of lung cancer treatment failure and death. MicroRNAs (miRs) have central roles during tumor metastasis and many miR genes are potentially subjected to control by DNA methylation in multiple tumor types. Recently, miR-34 and miR-124 have been demonstrated as potential regulators of the metastasis process in several cancer types. MATERIALS AND METHODS We studied the methylation status of miR-34 and miR-124 families in 157 patients with NSCLC using methylation-specific polymerase chain reaction and evaluated the clinical effect of their methylation on the patients' prognosis. RESULTS Methylation was detected in 30.6% for miR-34a, 40.8% for miR-34b/c, 30.6% for miR-124-1, 49.7% for miR-124-2, and 51.6% for miR-124-3 in NSCLC tissue. miR-34b/c methylation was significantly associated with age, gender, smoking status, histologic type, and pathologic stage. miR-34b/c, miR-124-2, and miR-124-3 methylation were significantly associated with worse survival in all patients (adjusted hazard ratio [HRadj] for miR-34b/c, 3.34; 95% confidence interval [CI], 1.95-5.74; P < .0001; HRadj for miR-124-2, 1.99; 95% CI, 1.19-3.32; P = .009; and HRadj for miR-124-3, 2.10; 95% CI, 1.24-3.55; P = .006). When miR-34b/c and miR-124-3 methylation were combined, overall survival decreased as the number of methylations increased (Ptrend < .0001). CONCLUSION These findings suggest that miR-34 and miR-124 loci methylation could be a tumor-associated frequent event during NSCLC tumorigenesis and could be used as powerful markers for the prognosis of patients with NSCLC.
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Affiliation(s)
- Young Hun Kim
- Department of Anatomy and BK21 Plus KNU Biomedical Convergence Program, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Won Kee Lee
- Department of Preventive Medicine, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Eung Bae Lee
- Department of Thoracic Surgery, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Ji Woong Son
- Department of Internal Medicine, Konyang University Hospital, Daejeon, Republic of Korea
| | - Dong Sun Kim
- Department of Anatomy and BK21 Plus KNU Biomedical Convergence Program, School of Medicine, Kyungpook National University, Daegu, Republic of Korea.
| | - Jae Yong Park
- Department of Internal Medicine, School of Medicine, Kyungpook National University, Daegu, Republic of Korea.
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Zhang N, Huang Y, Wu F, Zhao Y, Li X, Shen P, Yang L, Luo Y, Yang L, He G. Codelivery of a miR-124 Mimic and Obatoclax by Cholesterol-Penetratin Micelles Simultaneously Induces Apoptosis and Inhibits Autophagic Flux in Breast Cancer in Vitro and in Vivo. Mol Pharm 2016; 13:2466-83. [PMID: 27266580 DOI: 10.1021/acs.molpharmaceut.6b00211] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Nan Zhang
- State Key Laboratory of Biotherapy/Collaborative
Innovation Center for Biotherapy, Department of Pharmacy and Department
of Urology, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, P.R. China
| | - Yan Huang
- State Key Laboratory of Biotherapy/Collaborative
Innovation Center for Biotherapy, Department of Pharmacy and Department
of Urology, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, P.R. China
| | - Fengbo Wu
- State Key Laboratory of Biotherapy/Collaborative
Innovation Center for Biotherapy, Department of Pharmacy and Department
of Urology, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, P.R. China
| | - Yinbo Zhao
- State Key Laboratory of Biotherapy/Collaborative
Innovation Center for Biotherapy, Department of Pharmacy and Department
of Urology, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, P.R. China
| | - Xiang Li
- State Key Laboratory of Biotherapy/Collaborative
Innovation Center for Biotherapy, Department of Pharmacy and Department
of Urology, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, P.R. China
| | - Pengfei Shen
- State Key Laboratory of Biotherapy/Collaborative
Innovation Center for Biotherapy, Department of Pharmacy and Department
of Urology, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, P.R. China
| | - Lu Yang
- State Key Laboratory of Biotherapy/Collaborative
Innovation Center for Biotherapy, Department of Pharmacy and Department
of Urology, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, P.R. China
| | - Yan Luo
- State Key Laboratory of Biotherapy/Collaborative
Innovation Center for Biotherapy, Department of Pharmacy and Department
of Urology, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, P.R. China
| | - Li Yang
- State Key Laboratory of Biotherapy/Collaborative
Innovation Center for Biotherapy, Department of Pharmacy and Department
of Urology, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, P.R. China
| | - Gu He
- State Key Laboratory of Biotherapy/Collaborative
Innovation Center for Biotherapy, Department of Pharmacy and Department
of Urology, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, P.R. China
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Hawa Z, Haque I, Ghosh A, Banerjee S, Harris L, Banerjee SK. The miRacle in Pancreatic Cancer by miRNAs: Tiny Angels or Devils in Disease Progression. Int J Mol Sci 2016; 17:E809. [PMID: 27240340 PMCID: PMC4926343 DOI: 10.3390/ijms17060809] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2016] [Revised: 05/04/2016] [Accepted: 05/19/2016] [Indexed: 02/07/2023] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is an aggressive malignancy with increasing incidence and high mortality. Surgical resection is the only potentially curative treatment of patients with PDAC. Because of the late presentation of the disease, about 20 percent of patients are candidates for this treatment. The average survival of resected patients is between 12 and 20 months, with a high probability of relapse. Standard chemo and radiation therapies do not offer significant improvement of the survival of these patients. Furthermore, novel treatment options aimed at targeting oncogenes or growth factors in pancreatic cancer have proved unsuccessful. Thereby, identifying new biomarkers that can detect early stages of this disease is of critical importance. Among these biomarkers, microRNAs (miRNAs) have supplied a profitable recourse and become an attractive focus of research in PDAC. MiRNAs regulate many genes involved in the development of PDAC through mRNA degradation or translation inhibition. The possibility of intervention in the molecular mechanisms of miRNAs regulation could begin a new generation of PDAC therapies. This review summarizes the reports describing miRNAs involvement in cellular processes involving pancreatic carcinogenesis and their utility in diagnosis, survival and therapeutic potential in pancreatic cancer.
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Affiliation(s)
- Zuhair Hawa
- Cancer Research Unit, VA Medical Center, Kansas City, MO 64128, USA.
| | - Inamul Haque
- Cancer Research Unit, VA Medical Center, Kansas City, MO 64128, USA.
- Division of Oncology, Department of Internal Medicine, University of Kansas Medical Center, Kansas City, KS 66205, USA.
| | - Arnab Ghosh
- Cancer Research Unit, VA Medical Center, Kansas City, MO 64128, USA.
- Division of Oncology, Department of Internal Medicine, University of Kansas Medical Center, Kansas City, KS 66205, USA.
| | - Snigdha Banerjee
- Cancer Research Unit, VA Medical Center, Kansas City, MO 64128, USA.
- Division of Oncology, Department of Internal Medicine, University of Kansas Medical Center, Kansas City, KS 66205, USA.
| | - LaCoiya Harris
- Cancer Research Unit, VA Medical Center, Kansas City, MO 64128, USA.
| | - Sushanta K Banerjee
- Cancer Research Unit, VA Medical Center, Kansas City, MO 64128, USA.
- Division of Oncology, Department of Internal Medicine, University of Kansas Medical Center, Kansas City, KS 66205, USA.
- Department of Anatomy and Cell Biology, University of Kansas Medical Center, Kansas City, KS 66205, USA.
- Department of Pathology, University of Kansas Medical Center, Kansas City, KS 66205, USA.
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100
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Karandish F, Mallik S. Biomarkers and Targeted Therapy in Pancreatic Cancer. BIOMARKERS IN CANCER 2016; 8:27-35. [PMID: 27147897 PMCID: PMC4847554 DOI: 10.4137/bic.s34414] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Revised: 03/06/2016] [Accepted: 03/11/2016] [Indexed: 12/18/2022]
Abstract
Pancreatic ductal adenocarcinoma (PDAC) constitutes 90% of pancreatic cancers. PDAC is a complex and devastating disease with only 1%-3% survival rate in five years after the second stage. Treatment of PDAC is complicated due to the tumor microenvironment, changing cell behaviors to the mesenchymal type, altered drug delivery, and drug resistance. Considering that pancreatic cancer shows early invasion and metastasis, critical research is needed to explore different aspects of the disease, such as elaboration of biomarkers, specific signaling pathways, and gene aberration. In this review, we highlight the biomarkers, the fundamental signaling pathways, and their importance in targeted drug delivery for pancreatic cancers.
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Affiliation(s)
- Fataneh Karandish
- Department of Pharmaceutical Sciences, College of Health Professions, North Dakota State University, Fargo, ND, USA
| | - Sanku Mallik
- Department of Pharmaceutical Sciences, College of Health Professions, North Dakota State University, Fargo, ND, USA
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