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Huang J, Yang Y, Zhao F, Zhang Z, Deng J, Lu W, Jiang X. LncRNA SATB2-AS1 overexpression represses the development of hepatocellular carcinoma through regulating the miR-3678-3p/GRIM-19 axis. Cancer Cell Int 2023; 23:82. [PMID: 37118800 PMCID: PMC10148439 DOI: 10.1186/s12935-023-02901-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Accepted: 03/24/2023] [Indexed: 04/30/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is a malignancy worldwide with one of the worst prognoses. Emerging studies have revealed that long noncoding RNAs (lncRNAs) contribute to HCC progression. This research probes the expression and regulatory effect of lncRNA SATB2-AS1 on HCC development. Reverse transcription-polymerase chain reaction (RT-PCR) was applied to measure the SATB2-AS1 profile in HCC tissues and adjacent non-tumor tissues. The impact of SATB2-AS1, miR-3678-3p, or GRIM-19 on HCC cell proliferation, growth, migration, invasion, and apoptosis was determined by gain- and loss-of-function experiments. The results revealed that SATB2-AS1 was downregulated in HCC tissues, and its lower levels were related to higher tumor staging and poorer prognosis of HCC patients. SATB2-AS1 overexpression repressed HCC cell proliferation, induced G1 arrest, and apoptosis, and inhibited migration, invasion, and epithelial-mesenchymal transition (EMT). Mechanistically, SATB2-AS1 inactivated STAT3/HIF-1α and strengthened GRIM-19 expression. After knocking down GRIM-19 with small interfering RNA (siRNA), the malignant phenotypes of HCC cells were enhanced. Further bioinformatics analysis showed that miR-3678-3p was targeted by SATB2-AS1. The dual-luciferase reporter assay, RNA immunoprecipitation (RIP) experiment, and Fluorescence in situ Hybridization (FISH) test confirmed that SATB2-AS1 sponged miR-3678-3p and the latter targeted GRIM-19. The rescue experiments showed that miR-3678-3p aggravated the malignant behaviors of HCC cells, whereas SATB2-AS1 overexpression reversed miR-3678-3p-mediated effects. Inhibition STAT3 promoted SATB2-AS1 and GRIM-19 expression, and reduced miR-3678-3p level. Activation STAT3 exerted opposite effects. Overall, this study confirmed that SATB2-AS1 is a potential prognostic biomarker for HCC and regulates HCC devolvement by regulating the miR-3678-3p/GRIM-19/STAT3/HIF-1α pathway.
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Affiliation(s)
- Jiang Huang
- Department of Pharmacy, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Yunfang Yang
- Department of Neurology, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Fulan Zhao
- Department of Pharmacy, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Zhuo Zhang
- Department of Pharmacology, Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Jian Deng
- Department of Pharmacy, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Wei Lu
- Department of Emergency, Luzhou People's Hospital, Luzhou, 646000, Sichuan, China
| | - Xian Jiang
- Department of Anesthesiology, Luzhou People's Hospital, No. 316, Jiugu Avenue 2, Jiangyang District, Luzhou, 646000, Sichuan, China.
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Guo Y, Cui X, Zhang Y, Ma X, Ren A, Huang H. Diagnostic and Prognostic Value of Serum miR-296-5p and miR-28-3p in Human Gastric Cancer. Cancer Biother Radiopharm 2023; 38:95-101. [PMID: 32898433 DOI: 10.1089/cbr.2020.4144] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Background: Previous studies reported the use of microRNAs (miRNAs) as diagnostic and/or prognostic biomarkers for various cancers, including gastric cancer (GC). This study evaluated the diagnostic and prognostic significance of serum miR-296-5p and miR-28-3p in GC. Materials and Methods: Serum samples of 90 patients with GC and 90 healthy individuals, and 20 pairs of tissue specimens from patients with GC were collected. The expression of miR-296-5p and miR-28-3p in both the serum and tissue samples were detected using quantitative real-time polymerase chain reaction analysis. The diagnostic and prognostic values of miR-296-5p and miR-28-3p were evaluated by using receiver operating characteristic curve and Kaplan-Meier analyses, respectively. Results: Compared with the healthy controls, the expression of miR-296-5p in the serum and tissues of patients with GC was significantly upregulated, whereas that of miR-28-3p was significantly downregulated. High miR-296-5p and low miR-28-3p levels in the serum significantly correlated with larger tumor size (>5 cm), lymph node metastasis, and TNM stage III+IV. The area under the curve values of miR-296-5p and miR-28-3p were 0.919 and 0.911, respectively, with high sensitivity and specificity. Kaplan-Meier survival curves showed that patients with GC with high level of miR-296-5p or low level of miR-1236-3p in the serum had the poorest overall survival. COX analysis showed that lymphatic metastasis, high miR-296-5p expression, and low miR-28-3p expression are independent parameters indicating poor prognosis in GC. Conclusion: Our findings indicate that serum miR-296-5p and miR-28-3p levels are potential biomarkers in the diagnosis and prognosis of GC.
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Affiliation(s)
- Yuntong Guo
- Department of Gastrointestinal Surgery, First Hospital of ShanXi Medical University, Taiyuan City, China
| | - Xiaolong Cui
- Department of Gastrointestinal Surgery, First Hospital of ShanXi Medical University, Taiyuan City, China
| | - Yu Zhang
- Department of Gastrointestinal Surgery, First Hospital of ShanXi Medical University, Taiyuan City, China
| | - Xiaobo Ma
- Department of Gastrointestinal Surgery, First Hospital of ShanXi Medical University, Taiyuan City, China
| | - Aigang Ren
- Department of Gastrointestinal Surgery, First Hospital of ShanXi Medical University, Taiyuan City, China
| | - He Huang
- Department of Gastrointestinal Surgery, First Hospital of ShanXi Medical University, Taiyuan City, China
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Fang J, Yang J, Chen H, Sun W, Xiang L, Feng J. Long non-coding RNA LBX2-AS1 predicts poor survival of colon cancer patients and promotes its progression via regulating miR-627-5p/RAC1/PI3K/AKT pathway. Hum Cell 2022; 35:1521-1534. [PMID: 35816228 DOI: 10.1007/s13577-022-00745-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 06/29/2022] [Indexed: 12/20/2022]
Abstract
Colon cancer is one of the most prevalent malignant tumors across the world. Increasing studies have demonstrated that long non-coding RNAs (lncRNAs) take part in colon cancer development. Our study intends to explore the expression characteristics of LBX2-AS1, a novel lncRNA, in colon cancer and its underlying mechanisms. The results illustrated that LBX2-AS1 level was substantially increased in colon cancer tissues and was obviously correlated with the tumor volume and early distant metastasis of patients. Besides, overexpression of LBX2-AS1 remarkably boosted growth, proliferation, and metastasis and restrained apoptosis in colon cancer cells, whereas LBX2-AS1 knockdown produced the opposite effect. On the other hand, miR-627-5p, down-regulated in colon cancer tissues, was negatively associated with LBX2-AS1 expression. Functional experiments showed that miR-627-5p suppressed colon cancer growth. Mechanistically, LBX2-AS1, as an endogenous competitive RNA, targeted miR-627-5p and restrained its expression, while miR-627-5p targeted and negatively regulated the RAC1/PI3K/AKT axis. Collectively, this study has revealed that LBX2-AS1 is a poor prognostic factor of colon cancer and can regulate colon cancer progression by regulating the miR-627-5p/RAC1/PI3K/AKT pathway.
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Affiliation(s)
- Jing Fang
- Department of Oncology, Wuhan Fourth Hospital, PuAi Hospital of Tongji Medical College, Huazhong University of Science and Technology, No.76 Jiefang Road, Qiaokou District, Wuhan, 430034, Hubei, People's Republic of China
| | - Junyuan Yang
- Department of Oncology, Wuhan Fourth Hospital, PuAi Hospital of Tongji Medical College, Huazhong University of Science and Technology, No.76 Jiefang Road, Qiaokou District, Wuhan, 430034, Hubei, People's Republic of China
| | - Hui Chen
- Department of Oncology, Wuhan Fourth Hospital, PuAi Hospital of Tongji Medical College, Huazhong University of Science and Technology, No.76 Jiefang Road, Qiaokou District, Wuhan, 430034, Hubei, People's Republic of China
| | - Wen Sun
- Department of Oncology, Wuhan Fourth Hospital, PuAi Hospital of Tongji Medical College, Huazhong University of Science and Technology, No.76 Jiefang Road, Qiaokou District, Wuhan, 430034, Hubei, People's Republic of China
| | - Lingyun Xiang
- Department of Oncology, Wuhan Fourth Hospital, PuAi Hospital of Tongji Medical College, Huazhong University of Science and Technology, No.76 Jiefang Road, Qiaokou District, Wuhan, 430034, Hubei, People's Republic of China
| | - Jueping Feng
- Department of Oncology, Wuhan Fourth Hospital, PuAi Hospital of Tongji Medical College, Huazhong University of Science and Technology, No.76 Jiefang Road, Qiaokou District, Wuhan, 430034, Hubei, People's Republic of China.
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Zhong C, Liang Y, Wang Q, Tan HW, Liang Y. Construction and validation of a novel prediction system for detection of overall survival in lung cancer patients. World J Clin Cases 2022; 10:5984-6000. [PMID: 35949842 PMCID: PMC9254183 DOI: 10.12998/wjcc.v10.i18.5984] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 03/30/2022] [Accepted: 04/28/2022] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Many factors have an aberrant effect on the overall survival of lung cancer (LC) patients. In recent years, remarkable progress has been made in immunotherapy, targeted treatment, and promising biomarkers. However, the available treatments and diagnostic methods are not specific for all patients.
AIM To establish a system for predicting poor survival in patients with LC.
METHODS The expression matrix and clinical information for this study were obtained from The Cancer Genome Atlas and Gene Expression Omnibus databases. After the differential analysis of all screened genes, weighted gene coexpression network analysis was performed to analyze hub genes related to patient survival. A logistic regression model was used to construct the scoring system. The expression of the hub genes was verified by performing quantitative reverse transcription-polymerase chain reaction.
RESULTS A total of 5007 differentially expressed genes were selected for the Weighted Gene Co-expression Network Analysis algorithm. We found that the turquoise module showed the highest correlation with patient prognosis. The gene module with the greatest positive correlation with patient survival was located in the turquoise area. The Gene Ontology and Kyoto Encyclopedia of Genes and Genomes analyses performed for the genes contained in the turquoise module indicated the potential roles of the selected genes in the regulation of LC development. In addition, protein–protein interaction analysis was performed to screen hub genes, which identified 100 hub genes located in the core area of the network. We then intersected the 100 hub genes with 75 key genes sorted by module members to identify real hub genes associated with prognosis. Forty-one genes were finally selected. We then used a logistic regression model to determine 11 independent risk genes, namely CCNB2, CDC20, CENPO, FOXM1, HJURP, NEK2, OIP5, PLK1, PRC1, SKA1, UBE2C and SPARC.
CONCLUSION We constructed a predictive model based on 11 independent risk genes to establish a system predicting the survival status of patients with non-small-cell lung carcinoma.
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Affiliation(s)
- Cheng Zhong
- Department of Respiratory, Fenghua District People’s Hospital, Ningbo 315000, Zhejiang Province, China
| | - Yun Liang
- Department of Hematology and Oncology, Fengdu People's Hospital, Chongqing 408200, China
| | - Qun Wang
- Department of Respiratory, Fenghua District People’s Hospital, Ningbo 315000, Zhejiang Province, China
| | - Hao-Wei Tan
- Department of Respiratory, Fenghua District People’s Hospital, Ningbo 315000, Zhejiang Province, China
| | - Yan Liang
- Department of Hematology and Oncology, Fengdu People's Hospital, Chongqing 408200, China
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Du N, Li M, Yang D. Hsa_circRNA_102541 regulates the development of atherosclerosis by targeting miR-296-5p/PLK1 pathway. Ir J Med Sci 2022; 191:1153-1159. [PMID: 34251586 DOI: 10.1007/s11845-021-02708-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 06/26/2021] [Indexed: 11/26/2022]
Abstract
BACKGROUND Cardiovascular disorders pose great threat to public health. As a common type of cardiovascular disease, atherosclerosis is characterized by high morbidity and mortality/recurrence rate. However, the pathogenesis of atherosclerosis is complex and not fully understood. The aim of this study was to investigate the influences of hsa_circRNA_102541 (circ_102541) on proliferation and apoptosis of HUVEC cells and to identify the underlying mechanisms. METHODS RT-PCR was used to determine the expression levels of circ_102541, miR-296-5p, and PLK1 in atherosclerosis and healthy blood samples. Following the transfection with sh-circ_102541, LV-circ_102541, miR-296-5p mimics, miR-296-5p inhibitors, and si-PLK1, cell proliferation was evaluated using CCK8 assay; cell apoptosis was determined by flow cytometry; dual luciferase assay was performed to examine the interaction between abovementioned molecules. The levels of associated markers including PCNA and caspase-3 were assessed by western blotting and RT-qPCR. RESULTS The expression of circRNA_102541 and PLK1 were significantly elevated in atherosclerosis specimens, where the level of miR-296-5p was reduced. Furthermore, circRNA_102541 could bind miR-296-5p and subsequently target PLK1. Following treatment with sh-circRNA_102541 or miR-296-5p mimics, proliferative ability and levels of PCNA were remarkably reduced in HUVEC cells, while apoptosis was significantly enhanced. Co-transfection with miR-296-5p mimics abrogated the effects induced by the overexpressed circ_102541. Additionally, treatment with si-PLK1 attenuated the biological behavior changes caused by miR-296-5p inhibitors in HUVEC cells. Moreover, transfection with LV-PLK1 reversed the effects triggered by miR-296-5p mimics. CONCLUSION Taken together, circRNA_102541 was upregulated in atherosclerosis, and knockdown of circRNA_102541 suppressed cell proliferation while promoted apoptosis of HUVEC cells via miR-296-5p/PLK1. This novel pathway may serve essential roles on the development of atherosclerosis, and circRNA_102541 could be a promising therapeutic candidate for the treatment of atherosclerosis.
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Affiliation(s)
- Na Du
- Department of Cardiology, the First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning, 121001, People's Republic of China
| | - Mingjin Li
- Liaoning Jinqiu Hospital, Shenyang, Liaoning, 110015, People's Republic of China
| | - Dan Yang
- Department of Dermatology, the First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning, 121001, People's Republic of China.
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Zhao X, Liu W, Liu B, Zeng Q, Cui Z, Wang Y, Cao J, Gao Q, Zhao C, Dou J. Exploring the underlying molecular mechanism of liver cancer cells under hypoxia based on RNA sequencing. BMC Genom Data 2022; 23:38. [PMID: 35590240 PMCID: PMC9121577 DOI: 10.1186/s12863-022-01055-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Accepted: 05/06/2022] [Indexed: 12/18/2022] Open
Abstract
Background The aim of our study was to use the differentially expressed mRNAs (DEmRNAs) and differentially expressed miRNAs (DEmiRNAs) to illustrate the underlying mechanism of hypoxia in liver cancer. Methods In this study, a cell model of hypoxia was established, and autophagy activity was measured with western blotting and transmission electron microscopy. The effect of hypoxia conditions on the invasion of liver cancer cell was evaluated. RNA sequencing was used to identify DEmRNAs and DEmiRNAs to explore the mechanism of hypoxia in liver cancer cells. Results We found that autophagy activation was triggered by hypoxia stress and hypoxia might promote liver cancer cell invasion. In addition, a total of 407 shared DEmRNAs and 57 shared DEmiRNAs were identified in both HCCLM3 hypoxia group and SMMC-7721 hypoxia group compared with control group. Furthermore, 278 DEmRNAs and 24 DEmiRNAs were identified as cancer hypoxia-specific DEmRNAs and DEmiRNAs. Finally, we obtained 19 DEmiRNAs with high degree based on the DEmiRNA-DEmRNA interaction network. Among them, hsa-miR-483-5p, hsa-miR-4739, hsa-miR-214-3p and hsa-miR-296-5p may be potential gene signatures related to liver cancer hypoxia. Conclusions Our study may help to understand the potential molecular mechanism of hypoxia in liver cancer. Supplementary Information The online version contains supplementary material available at 10.1186/s12863-022-01055-9.
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Affiliation(s)
- Xin Zhao
- Department of Hepatobiliary Surgery, The Third Hospital of Hebei Medical University, No.139 Ziqiang Road, Shijiazhuang City, 050051, Hebei Province, China
| | - Wenpeng Liu
- Department of Hepatobiliary Surgery, The Third Hospital of Hebei Medical University, No.139 Ziqiang Road, Shijiazhuang City, 050051, Hebei Province, China
| | - Baowang Liu
- Department of Hepatobiliary Surgery, The Third Hospital of Hebei Medical University, No.139 Ziqiang Road, Shijiazhuang City, 050051, Hebei Province, China
| | - Qiang Zeng
- Department of Hepatobiliary Surgery, The Third Hospital of Hebei Medical University, No.139 Ziqiang Road, Shijiazhuang City, 050051, Hebei Province, China
| | - Ziqiang Cui
- Department of Hepatobiliary Surgery, The Third Hospital of Hebei Medical University, No.139 Ziqiang Road, Shijiazhuang City, 050051, Hebei Province, China
| | - Yang Wang
- Department of Hepatobiliary Surgery, The Third Hospital of Hebei Medical University, No.139 Ziqiang Road, Shijiazhuang City, 050051, Hebei Province, China
| | - Jinglin Cao
- Department of Hepatobiliary Surgery, The Third Hospital of Hebei Medical University, No.139 Ziqiang Road, Shijiazhuang City, 050051, Hebei Province, China
| | - Qingjun Gao
- Department of Hepatobiliary Surgery, The Third Hospital of Hebei Medical University, No.139 Ziqiang Road, Shijiazhuang City, 050051, Hebei Province, China
| | - Caiyan Zhao
- Department of Infectious Disease, The Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Jian Dou
- Department of Hepatobiliary Surgery, The Third Hospital of Hebei Medical University, No.139 Ziqiang Road, Shijiazhuang City, 050051, Hebei Province, China.
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Spectrum of microRNAs and their target genes in cancer: intervention in diagnosis and therapy. Mol Biol Rep 2022; 49:6827-6846. [PMID: 35031927 DOI: 10.1007/s11033-021-07040-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Accepted: 11/30/2021] [Indexed: 12/11/2022]
Abstract
Till date, several groups have studied the mechanism of microRNA (miRNA) biogenesis, processing, stability, silencing, and their dysregulation in cancer. The miRNA coding genes recurrently go through abnormal amplification, deletion, transcription, and epigenetic regulation in cancer. Some miRNAs function as tumor promoters while few others are tumor suppressors based on the transcriptional regulation of target genes. A review of miRNAs and their target genes in a wide range of cancers is attempted in this article, which may help in the development of new diagnostic tools and intervention therapies. The contribution of miRNAs for drug sensitivity or resistance in cancer therapy and opportunities of miRNAs in cancer prognosis or diagnosis and therapy is also presented in detail.
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Parvin S, Sedighian H, Sohrabi E, Mahboobi M, Rezaei M, Ghasemi D, Rezaei E. Prediction of Genes Involved in Lung Cancer with a Systems Biology Approach Based on Comprehensive Gene Information. Biochem Genet 2021; 60:1253-1273. [PMID: 34855070 DOI: 10.1007/s10528-021-10163-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Accepted: 10/28/2021] [Indexed: 01/09/2023]
Abstract
Over the past few years, hundreds of genes have been reported in relation to lung cancer. Systems biology studies can help validate this association and find the most valid genes to use in the diagnosis and treatment. We reviewed the candidate genes for lung cancer in 120 published articles from September 1, 1993, to September 1, 2020. We obtained 134 up- and 36 downregulated genes for lung cancer in this article. The genes extracted from the articles were imported to Search Tool for the Retrieval of Interacting genes/proteins (STRING) to construct the protein-protein interaction (PPI) Network and pathway enrichment. GO ontology and Reactome databases were used for describing the genes, average length of survival, and constructing networks. Then, the ClusterONE plugin of Cytoscape software was used to analyze and cluster networks. Hubs and bottleneck nodes were defined based on their degree and betweenness. Common genes between the ClusterONE plugin and network analysis consisted of seven genes (BRCA1-TP53-CASP3-PLK1-VEGFA-MDM2-CCNB1 and PLK1), and two genes (PLK1 and TYMS) were selected as survival factors. Our drug-gene network showed that CASP3, BRCA1, TP53, VEGFA, and MDM2 are common genes that are involved in this network. Also, among the drugs recognized in the drug-gene network, five drugs such as paclitaxel, oxaliplatin, carboplatin, irinotecan, and cisplatin were examined in different studies. It seems that these seven genes, with further studies and confirmatory tests, could be potential markers for lung cancer, especially PLK1 that has a significant effect on the survival of patients. We provide the novel genes into the pathogenesis of lung cancer, and we introduced new potential biomarkers for this malignancy.
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Affiliation(s)
- Shahram Parvin
- Chemical Injuries Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran.,Systems Biomedicine Unit, Pasteur Institute of Iran, Tehran, Iran
| | - Hamid Sedighian
- Applied Microbiology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Ehsan Sohrabi
- Molecular Biology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Science, P.O. Box 19395-5487, Tehran, Iran
| | - Mahdieh Mahboobi
- Applied Microbiology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Milad Rezaei
- Biology Department, Sciences Faculty, Brujerd Branch, Islamic Azad University, Brujerd, Iran
| | - Dariush Ghasemi
- Molecular Biology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Science, P.O. Box 19395-5487, Tehran, Iran
| | - Ehsan Rezaei
- Molecular Biology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Science, P.O. Box 19395-5487, Tehran, Iran.
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Jun W, Shaobo O, Xianhua Z, Siyu Z, Mingyang C, Xin F, Ying C, Lan L. Deregulation of hsa_circ_0001971/miR-186 and hsa_circ_0001874/miR-296 signaling pathways promotes the proliferation of oral squamous carcinoma cells by synergistically activating SHP2/PLK1 signals. Sci Rep 2021; 11:20561. [PMID: 34663837 PMCID: PMC8523700 DOI: 10.1038/s41598-021-99488-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 08/31/2021] [Indexed: 12/29/2022] Open
Abstract
It has been demonstrated that circ_0001874 and circ_0001971 are potential biomarkers for the diagnosis of oral squamous carcinoma (OSCC). MiR-186 was reported to serve as a tumor suppressor in OSCC, and the down-regulation of miR-186 was reported to lead to higher expression of oncogenic factor SHP2 and the activation of growth promoting signaling. In this study, we aimed to explore the possible molecular role of circ_0001874 and circ_0001971 signaling in the pathogenesis of OSCC. RT-qPCR, Western blot, online bioinformatics tools and luciferase assay were utilized to study the molecular signaling pathways of circ_0001874 and circ_0001971. MTT assay and FCM assay were performed to investigate the synergistic effect of circ_0001971 and circ_0001874 on cell proliferation and apoptosis. By observing the effect of different miRNAs on the levels of circ_0001847 and circ_0001971, it was identified that circ_0001847 and circ_0001971 respectively sponged the expression of miR-296 and miR-186 via binding to these miRNAs. Also, SHP2 mRNA and PLK1 mRNA were respectively targeted by miR-186 and miR-296-5p. We also established two signaling pathways, i.e., circ_0001971/miR-186/SHP2 and circ_0001874/miR-296-5p/PLK1, and validated the synergistic effect of circ_0001971 and circ_0001874 via observing their positive effect on cell proliferation and negative effect on cell apoptosis. The expression of miR-186 and miR-296-5p was generally lower in saliva of OSCC patients compared with that in OLK patients, while the expression of miR-186 and miR-296-5p was specifically up-regulated in saliva of OSCC patients. In conclusion, the finding of this study demonstrated that the relative level of hsa_circ_0001971 and hsa_circ_0001874 were different in the saliva of OSCC patients and could be used as predictive biomarkers for the development of OSCC. Furthermore, oncogenic effects of hsa_circ_0001971 and hsa_circ_0001874 in the development of OSCC might be, at least partially, mediated by its downstream signaling pathways including hsa_circ_0001971/microRNA-186/SHP2 and hsa_circ_0001874/microRNA-297/PLK1.
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Affiliation(s)
- Wang Jun
- Oral and Maxillofacial Surgery, Second Affiliated Hospital of Nanchang University, Nanchang, 330006, China
| | - Ouyang Shaobo
- Department of Oral Prosthodontics, Affiliated Stomatological Hospital of Nanchang University, Jiangxi Provincial Key Laboratory of Oral Biomedicine, 49 Fuzhou Lu, Nanchang, 330006, China
| | - Zhang Xianhua
- Department of Oral Prosthodontics, Affiliated Stomatological Hospital of Nanchang University, Jiangxi Provincial Key Laboratory of Oral Biomedicine, 49 Fuzhou Lu, Nanchang, 330006, China
| | - Zhao Siyu
- Department of Oral Prosthodontics, Affiliated Stomatological Hospital of Nanchang University, Jiangxi Provincial Key Laboratory of Oral Biomedicine, 49 Fuzhou Lu, Nanchang, 330006, China
| | - Cheng Mingyang
- Department of Oral Prosthodontics, Affiliated Stomatological Hospital of Nanchang University, Jiangxi Provincial Key Laboratory of Oral Biomedicine, 49 Fuzhou Lu, Nanchang, 330006, China
| | - Fan Xin
- Department of Oral Prosthodontics, Affiliated Stomatological Hospital of Nanchang University, Jiangxi Provincial Key Laboratory of Oral Biomedicine, 49 Fuzhou Lu, Nanchang, 330006, China
| | - Cai Ying
- Department of Oral Prosthodontics, Affiliated Stomatological Hospital of Nanchang University, Jiangxi Provincial Key Laboratory of Oral Biomedicine, 49 Fuzhou Lu, Nanchang, 330006, China
| | - Liao Lan
- Department of Oral Prosthodontics, Affiliated Stomatological Hospital of Nanchang University, Jiangxi Provincial Key Laboratory of Oral Biomedicine, 49 Fuzhou Lu, Nanchang, 330006, China.
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Yan G, Yan S, Wang J, Lei S, Tian W, Yue X, Zhang Y. MicroRNA-296-5p inhibits cell proliferation by targeting HMGA1 in colorectal cancer. Exp Ther Med 2021; 22:793. [PMID: 34093749 PMCID: PMC8170657 DOI: 10.3892/etm.2021.10225] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Accepted: 11/08/2019] [Indexed: 01/10/2023] Open
Abstract
An increasing body of evidence indicates the involvement of microRNAs (miRNAs/miRs) in the initiation and progression of colorectal cancer (CRC). miR-296-5p was recently identified as a tumor suppressor in a variety of human cancer types; however, its function in CRC remains largely unknown. The present study demonstrated that the expression of miR-296-5p was significantly downregulated in CRC tissues and cell lines. The overexpression of miR-296-5p markedly inhibited proliferation, and induced cell cycle arrest and apoptosis in CRC cells. Bioinformatics analysis suggested that high mobility group AT-hook 1 (HMGA1) may be a target of miR-296-5p in CRC cells. Further experiments showed that miR-296-5p bound the 3'-untranslated region of HMGA1 and decreased its expression in CRC cells. HMGA1 was overexpressed in CRC tissues and was inversely correlated with the expression of miR-296-5p. The restoration of HMGA1 significantly reversed the inhibitory effect of miR-296-5p on the proliferation of CRC cells. Overall, the findings of the present study indicate that miR-296-5p suppressed the progression of CRC, at least partially via targeting HMGA1. Thus, miR-296-5p is a potential target for novel therapies in CRC.
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Affiliation(s)
- Guohui Yan
- The Medical Department of the Xiamen University, Xiamen, Fujian 361000, P.R. China
- The Medical Department of the Fujian Medical University, Fuzhou, Fujian 350000, P.R. China
- Department of Ultrasound, Zhongshan Hospital, School of Medicine, Xiamen University, Xiamen, Fujian 361004, P.R. China
| | - Shuidi Yan
- Center of Clinical Laboratory, Zhongshan Hospital, School of Medicine, Xiamen University, Xiamen, Fujian 361004, P.R. China
| | - Jiajia Wang
- Center of Clinical Laboratory, Zhongshan Hospital, School of Medicine, Xiamen University, Xiamen, Fujian 361004, P.R. China
| | - Shen Lei
- The Medical Department of the Fujian Medical University, Fuzhou, Fujian 350000, P.R. China
| | - Weimin Tian
- Department of Paediatrics, Zhongshan Hospital, School of Medicine, Xiamen University, Xiamen, Fujian 361004, P.R. China
| | - Xin Yue
- Department of Imaging, Zhongshan Hospital, School of Medicine, Xiamen University, Xiamen, Fujian 361004, P.R. China
| | - Yang Zhang
- The Medical Department of the Xiamen University, Xiamen, Fujian 361000, P.R. China
- The Medical Department of the Fujian Medical University, Fuzhou, Fujian 350000, P.R. China
- Center of Clinical Laboratory, Zhongshan Hospital, School of Medicine, Xiamen University, Xiamen, Fujian 361004, P.R. China
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Cao F, Shi M, Yu B, Cheng X, Li X, Jia X. Epigenetic Mechanism of Enrichment of A549 Lung Cancer Stem Cells with 5-Fu. Onco Targets Ther 2021; 14:3783-3794. [PMID: 34168463 PMCID: PMC8218937 DOI: 10.2147/ott.s233129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 05/14/2021] [Indexed: 11/23/2022] Open
Abstract
Background The influence of 5-fluorouracil (5-Fu) and cisplatin (CDDP) on the A549 and NCI-H226 cells was studied, and the epigenetic mechanism of enrichment of A549 lung cancer stem cells with 5-Fu was explored. Materials and Methods The cell proliferation of both A549 and NCI-H226 was detected by BrdU assay, and apoptosis condition was measured by flow cytometric analysis. The expressions of OCT3/4 and Nanog in cells treated with 5-Fu or CDDP were measured by immunofluorescence, Western blot and qPCR. qPCR was also performed to determine the relative expression of methyltransferase genes and miRNA. Sequencing after bisulfite treatment (BSP) was employed to detect the methylation of OCT3/4 promoter in A549 cells. And ChIP was conducted to detect the expression of H3K9Me3 and H3K9Ace. Results Both 5-Fu and CDDP result in the apoptosis of A549 and NCI-H226 cells and improve the expressions of has-miR-134 and has-miR-296. However, 5-Fu enhances the expression of OCT3/4 in A549 cells, and the change of methyltransferase genes and BSP results suggested some genetic differences between CDDP and 5-Fu treatment in A549 cells. ChIP assay showed that the expression of H3K9Me3 significantly decreased and H3K9Ace significantly increased in A549 cells. Conclusion The enrichment effect of CDDP on A549 and NCI-H226 carcinoma stem cells is inconsistent with the enrichment effect of 5-Fu. The enrichment of A549 lung cancer stem cells with 5-Fu might be related to the methylation of OCT3/4 promoter and the expression of H3K9Me3 and H3K9Ace.
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Affiliation(s)
- Fangyuan Cao
- Department of Pathology, Science and Education Department of the Fifth People's Hospital of Qinghai, Xining, Qinhai, 810000, People's Republic of China.,Department of Pediatrics, The Fifth Affiliated Hospital of Harbin Medical University, Daqing, Heilongjiang, 163319, People's Republic of China
| | - Mumu Shi
- Department of Pathology, Science and Education Department of the Fifth People's Hospital of Qinghai, Xining, Qinhai, 810000, People's Republic of China
| | - Bo Yu
- Department of Pathology, Science and Education Department of the Fifth People's Hospital of Qinghai, Xining, Qinhai, 810000, People's Republic of China
| | - Xiangrong Cheng
- Department of Nuclear Medicine, The Fifth People's Hospital of Qinghai, Xining, Qinhai, 810000, People's Republic of China
| | - Xin Li
- Department of Physiology, College of Life Science and Biopharmaceutics of Shenyang Pharmaceutical University, Shenyang, Liaoning, 110001, People's Republic of China
| | - Xinshan Jia
- Department of Pathology, College of Basic Medical Sciences, China Medical University, Shenyang, Liaoning, 110001, People's Republic of China
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A three-microRNA panel in serum as novel biomarker for papillary thyroid carcinoma diagnosis. Chin Med J (Engl) 2021; 133:2543-2551. [PMID: 33009019 PMCID: PMC7722608 DOI: 10.1097/cm9.0000000000001107] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Background Accumulating evidence has revealed that circulating microRNAs (miRNAs) can serve as non-invasive biomarkers for cancer diagnosis. This study aimed to identify differentially expressed miRNAs in serum which might become potential biomarkers for non-invasive diagnosis of papillary thyroid carcinoma (PTC). Methods The experiment was carried out between 2015 and 2017. In the screening stage, the Exiqon miRNA quantitative real-time polymerase chain reaction (qPCR) panel was applied to select candidate miRNAs. In the following training, testing, and external validation stages, the serum samples of 100 patients and 96 healthy controls (HCs) were analyzed to compare the expression levels of the identified miRNAs. The areas under the receiver operating characteristic curves (AUCs) were calculated to assess the diagnostic value of the identified signature. Results Three miRNAs (miR-25-3p, miR-296-5p, and miR-92a-3p) in serum were consistently up-regulated in PTC patients compared with HCs. A three-miRNA panel was constructed by logistic regression analysis and showed better diagnostic performance than a single miRNA for PTC detection. The AUCs of the panel were 0.727, 0.771, and 0.862 for the training, testing, and external validation stage, respectively. Meanwhile, the panel showed stable capability in differentiating PTC patients from patients with benign goiters, with an AUC as high as 0.969. For further exploration, the three identified miRNAs were analyzed in tissue samples (23 PTC vs. 23 HCs) and serum-derived exosomes samples (24 PTC vs. 24 HCs), and the altered expression in the tumor also indicated their close relationship with PTC disease. Conclusion We identify a three-miRNA panel in serum which might serve as a promising biomarker for PTC diagnosis.
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M2 macrophage-derived exosomal long non-coding RNA AGAP2-AS1 enhances radiotherapy immunity in lung cancer by reducing microRNA-296 and elevating NOTCH2. Cell Death Dis 2021; 12:467. [PMID: 33972506 PMCID: PMC8110970 DOI: 10.1038/s41419-021-03700-0] [Citation(s) in RCA: 59] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 03/01/2021] [Accepted: 03/03/2021] [Indexed: 01/09/2023]
Abstract
Long noncoding RNAs (lncRNAs) and microRNAs (miRNAs) play vital roles in human diseases. We aimed to identify the effect of the lncRNA AGAP2 antisense RNA 1 (AGAP2-AS1)/miR-296/notch homolog protein 2 (NOTCH2) axis on the progression and radioresistance of lung cancer. Expression of AGAP2-AS1, miR-296, and NOTCH2 in lung cancer cells and tissues from radiosensitive and radioresistant patients was determined, and the predictive role of AGAP2-AS1 in the prognosis of patients was identified. THP-1 cells were induced and exosomes were extracted, and the lung cancer cells were respectively treated with silenced AGAP2-AS1, exosomes, and exosomes upregulating AGAP2-AS1 or downregulating miR-296. The cells were radiated under different doses, and the biological processes of cells were assessed. Moreover, the natural killing cell-mediated cytotoxicity on lung cancer cells was determined. The relationships between AGAP2-AS1 and miR-296, and between miR-296 and NOTCH2 were verified. AGAP2-AS1 and NOTCH2 increased while miR-296 decreased in radioresistant patients and lung cancer cells. The malignant behaviors of radioresistant cells were promoted compared with the parent cells. Inhibited AGAP2-AS1, macrophage-derived exosomes, and exosomes overexpressing AGAP2-AS1 or inhibiting miR-296 facilitated the malignant phenotypes of radioresistant lung cancer cells. Furthermore, AGAP2-AS1 negatively regulated miR-296, and NOTCH2 was targeted by miR-296. M2 macrophage-derived exosomal AGAP2-AS1 enhances radiotherapy immunity in lung cancer by reducing miR-296 and elevating NOTCH2. This study may be helpful for the investigation of radiotherapy of lung cancer.
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14
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Han N, Li Z. Non-coding RNA Identification in Osteonecrosis of the Femoral Head Using Competitive Endogenous RNA Network Analysis. Orthop Surg 2021; 13:1067-1076. [PMID: 33749138 PMCID: PMC8126913 DOI: 10.1111/os.12834] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 07/21/2020] [Accepted: 09/28/2020] [Indexed: 12/22/2022] Open
Abstract
OBJECTIVE To investigate the regulatory network of long non-coding RNA (lncRNA) as competing endogenous RNAs (ceRNAs) in osteonecrosis of the femoral head (ONFH). METHODS The gene expression profile GSE74089 of ONFH and microRNA (miRNA) expression profile of GSE89587 were obtained from the Gene Expression Omnibus (GEO) database. The GSE74089 contained four ONFH samples and four controls. The GSE89587 included 10 ONFH samples and 10 control samples. The differentially expressed lncRNAs (DE-lncRNAs) and DE-mRNAs between ONFH group and control group were identified from GSE74089 using the limma package based on criteria of adjusted P value <0.05 and |log fold change (FC)| ≥2. The DEmiRNAs between ONFH group and control group were screened from GSE89587 on the basis of adjusted P value <0.05. Gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway for DE-mRNAs were analyzed using DAVID 6.7 and GSEA 3.0, respectively. Coexpressed lncRNA-mRNA pairs were identified by corr.test method in R based on the criteria of adjusted P value <0.01 and |r| ≥ 0.9. A ceRNA network was constructed and visualized using cytoscape 3.7.0 by integrating the DE-lncRNA, DE-miRNA, and DEmRNA data. The key mRNAs and lncRNAs in the ceRNA network were further validated in an independent dataset of GSE123568. RESULTS Based on our analysis, a total of 28 DE-lncRNAs, 1403 DE-mRNAs, and 134 DE-miRNAs were identified, respectively. The DE-mRNAs were significantly enriched in the function of "skeletal system development," "collagen fibril organization," "blood vessel development," and "regulation of nervous system development." Besides, 72 KEGG pathways, including eight active pathways and 64 suppressed pathways were identified, including which immune pathway was the most significantly activated one and which ribosome-related function was the most suppressed. A co-expression network including 161 DE-mRNAs and 16 DE-lncRNAs was built. Highly connected nodes were identified among lncRNAs such as H19, C20orf203, LINC00355, SFTA3, CRNDE, CASC2, LINC00494, C9orf163, C10orf91, and LINC00301. The ceRNA network indicated that lncRNA H19 functioned as a ceRNA of hsa-miR-519b-3p and hsa-miR-296-5p in ANKH and ECHDC1 regulation; lncRNA C9orf163 functioned as a ceRNA of hsa-miR-424-5p in CCNT1 regulation. The expression trends of ANKH, CCNT1, and C9orf163 were successfully validated in independent dataset of GSE123568. CONCLUSION The ceRNAs of lncRNA H19- hsa-miR-519b-3p/hsa-miR-296-5p-ANKH and lncRNA c9orf163- hsa-miR-424-5p-CCNT1 might play important roles in ONFH development. Our research provided an understanding of the important role of lncRNA-related ceRNAs in ONFH.
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Affiliation(s)
- Ning Han
- Department of Emergency Trauma Surgery, Shanghai East Hospital of Tongji University, Shanghai, China
| | - Zengchun Li
- Department of Emergency Trauma Surgery, Shanghai East Hospital of Tongji University, Shanghai, China
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Zhang W, Li Z, Guo W, Yang W, Huang F. A Fast Linear Neighborhood Similarity-Based Network Link Inference Method to Predict MicroRNA-Disease Associations. IEEE/ACM TRANSACTIONS ON COMPUTATIONAL BIOLOGY AND BIOINFORMATICS 2021; 18:405-415. [PMID: 31369383 DOI: 10.1109/tcbb.2019.2931546] [Citation(s) in RCA: 62] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Increasing evidences revealed that microRNAs (miRNAs) play critical roles in important biological processes. The identification of disease-related miRNAs is critical to understand the molecular mechanisms of human diseases. Most existing computational methods require diverse features to predict miRNA-disease associations. However, diverse features are not available for all miRNAs or diseases. In addition, most methods can't predict links for miRNAs or diseases without association information. In this paper, we propose a fast linear neighborhood similarity-based network link inference method, named FLNSNLI, to predict miRNA-disease associations. First, known miRNA-disease associations are formulated as a bipartite network, and miRNAs (or diseases) are expressed as association profiles. Second, miRNA-miRNA similarity and disease-disease similarity are calculated by fast linear neighborhood similarity measure and association profiles. Third, the label propagation algorithm is respectively implemented on two sides to score candidate miRNA-disease associations. Finally, FLNSNLI adopts the weighted average strategy and makes predictions. Moreover, we develop a link complementing approach, and extend FLNSNLI to predict links for miRNAs (or diseases) without known associations. In computational experiments, FLNSNLI produces high-accuracy performances, and outperforms other state-of-the-art methods. More importantly, FLNSNLI requires less information but performs well. Case studies on three popular diseases show that FLNSNLI is useful for the microRNA-disease association prediction.
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Li L, Jiang Z, Zou X, Hao T. Exosomal circ_IFT80 Enhances Tumorigenesis and Suppresses Radiosensitivity in Colorectal Cancer by Regulating miR-296-5p/MSI1 Axis. Cancer Manag Res 2021; 13:1929-1941. [PMID: 33658855 PMCID: PMC7917334 DOI: 10.2147/cmar.s297123] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Accepted: 02/02/2021] [Indexed: 12/11/2022] Open
Abstract
Background Exosomal circular RNAs (circRNAs) can act as biomarkers and play crucial roles in colorectal cancer (CRC) and radiosensitivity. The aim of this study was to explore the functions and regulatory mechanism of exosomal circRNA intraflagellar transport 80 (circ_IFT80) in tumorigenesis and radiosensitivity of CRC. Methods Exosomes were detected using transmission electron microscopy (TEM). Protein levels were determined by Western blot assay. The expression of circ_IFT80, microRNA-296-5p (miR-296-5p) and musashi1 (MSI1) was measured by quantitative real-time polymerase chain reaction (qRT-PCR). Cell cycle distribution, cell apoptosis, and cell proliferation were detected by flow cytometry and 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay, respectively. Colony formation assay was used to determine the radiosensitivity of cells. The interaction between miR-296-5p and circ_IFT80 or MSI1 was verified by dual-luciferase reporter assay. A xenograft tumor model was established to explore the role of exosomal circ_IFT80 in vivo. Results Circ_IFT80 was upregulated in exosomes derived from CRC patient serum and CRC cells. Exosomal circ_IFT80 or circ_IFT80 overexpression facilitated tumorigenesis by increasing cell proliferation and reducing apoptosis, and inhibited radiosensitivity via promoting colony formation and inhibiting apoptosis. Additionally, circ_IFT80 acted as a sponge of miR-296-5p, and miR-296-5p reversed the effects of circ_IFT80 on tumorigenesis and radiosensitivity. Moreover, MSI1 was a direct target of miR-296-5p. Furthermore, miR-296-5p overexpression inhibited tumorigenesis and promoted radiosensitivity by downregulating MSI1. Exosomal circ_IFT80 also accelerated tumor growth in vivo. Conclusion Exosomal circ_IFT80 promoted tumorigenesis and reduced radiosensitivity by regulating miR-296-5p/MSI1 axis, which might provide a novel avenue for treatment of CRC.
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Affiliation(s)
- Liang Li
- Department of Digestive Medicine Center, The Seventh Affiliated Hospital, Sun Yat-Sen University, Shenzhen, People's Republic of China
| | - Zhipeng Jiang
- Department of Gastrointestinal Surgery, The Sixth Affiliated Hospital, Sun Yat-Sen University, Guangzhou, People's Republic of China
| | - Xiangcai Zou
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, People's Republic of China
| | - Tengfei Hao
- Department of Digestive Medicine Center, The Seventh Affiliated Hospital, Sun Yat-Sen University, Shenzhen, People's Republic of China
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Favaro RR, Morales-Prieto DM, Herrmann J, Sonnemann J, Schleussner E, Markert UR, Zorn TMT. Influence of high glucose in the expression of miRNAs and IGF1R signaling pathway in human myometrial explants. Arch Gynecol Obstet 2021; 303:1513-1522. [PMID: 33575847 PMCID: PMC8087607 DOI: 10.1007/s00404-020-05940-5] [Citation(s) in RCA: 6] [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: 04/20/2020] [Accepted: 12/15/2020] [Indexed: 12/26/2022]
Abstract
PURPOSE Several roles are attributed to the myometrium including sperm and embryo transport, menstrual discharge, control of uterine blood flow, and labor. Although being a target of diabetes complications, the influence of high glucose on this compartment has been poorly investigated. Both miRNAs and IGF1R are associated with diabetic complications in different tissues. Herein, we examined the effects of high glucose on the expression of miRNAs and IGF1R signaling pathway in the human myometrium. METHODS Human myometrial explants were cultivated for 48 h under either high or low glucose conditions. Thereafter, the conditioned medium was collected for biochemical analyses and the myometrial samples were processed for histological examination as well as miRNA and mRNA expression profiling by qPCR. RESULTS Myometrial structure and morphology were well preserved after 48 h of cultivation in both high and low glucose conditions. Levels of lactate, creatinine, LDH and estrogen in the supernatant were similar between groups. An explorative screening by qPCR arrays revealed that 6 out of 754 investigated miRNAs were differentially expressed in the high glucose group. Data validation by single qPCR assays confirmed diminished expression of miR-215-5p and miR-296-5p, and also revealed reduced miR-497-3p levels. Accordingly, mRNA levels of IGF1R and its downstream mediators FOXO3 and PDCD4, which are potentially targeted by miR-497-3p, were elevated under high glucose conditions. In contrast, mRNA expression of IGF1, PTEN, and GLUT1 was unchanged. CONCLUSIONS The human myometrium responds to short-term exposure (48 h) to high glucose concentrations by regulating the expression of miRNAs, IGF1R and its downstream targets.
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Affiliation(s)
- Rodolfo R Favaro
- Placenta Lab, Department of Obstetrics, Jena University Hospital, Jena, Germany.
- Laboratory of Reproductive and Extracellular Matrix Biology, Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil.
| | | | - Jörg Herrmann
- Department of Gynecology and Obstetrics, Hufeland Klinikum, Weimar, Germany
| | - Jürgen Sonnemann
- Department of Pediatric Hematology and Oncology, Children's Clinic, Jena University Hospital, Jena, Germany
| | | | - Udo R Markert
- Placenta Lab, Department of Obstetrics, Jena University Hospital, Jena, Germany
| | - Telma M T Zorn
- Laboratory of Reproductive and Extracellular Matrix Biology, Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
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miRNA-296-5p functions as a potential tumor suppressor in human osteosarcoma by targeting SND1. Chin Med J (Engl) 2021; 134:564-572. [PMID: 33652459 PMCID: PMC7929571 DOI: 10.1097/cm9.0000000000001400] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Background: The pathogenesis of osteosarcoma (OS) is still unclear, and it is still necessary to find new targets and drugs for anti-OS. This study aimed to investigate the role and mechanism of the anti-OS effects of miR-296-5p. Methods: We measured the expression of miR-296-5p in human OS cell lines and tissues. The effect of miR-296-5p and its target gene staphylococcal nuclease and tudor domain containing 1 on proliferation, migration, and invasion of human OS lines was examined. The Student's t test was used for statistical analysis. Results: We found that microRNA (miR)-296-5p was significantly downregulated in OS cell lines and tissues (control vs. OS, 1.802 ± 0.313 vs. 0.618 ± 0.235, t = 6.402, P < 0.01). Overexpression of miR-296-5p suppressed proliferation, migration, and invasion of OA cells. SND1 was identified as a target of miR-296-5p by bioinformatic analysis and dual-luciferase reporter assay. Overexpression of SND1 abrogated the effects induced by miR-296-5p upregulation (miRNA-296-5p vs. miRNA-296-5p + SND1, 0.294 ± 0.159 vs. 2.300 ± 0.277, t = 12.68, P = 0.003). Conclusion: Our study indicates that miR-296-5p may function as a tumor suppressor by targeting SND1 in OS.
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Wu J, Li L, Jiang G, Zhan H, Zhu X, Yang W. NCAPG2 facilitates glioblastoma cells' malignancy and xenograft tumor growth via HBO1 activation by phosphorylation. Cell Tissue Res 2021; 383:693-706. [PMID: 32897418 DOI: 10.1007/s00441-020-03281-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Accepted: 08/12/2020] [Indexed: 10/23/2022]
Abstract
NCAPG2 (non-SMC condensin II complex subunit G2), as an important factor in cell mitosis, has been the focus in the study of different cancers. However, the role of NCAPG2 in the malignancy of glioblastoma cells remains unknown. The findings from the present study demonstrated that NCAPG2 was significantly increased in human glioblastoma tissues and was associated with poor clinical outcome. Moreover, NCAPG2 could promote proliferation, migration, and invasion and regulate cell cycle in glioblastoma cells. Investigation of the molecular mechanism indicated that NCAPG2 regulated HBO1 phosphorylation and H4 histone acetylase activation, modulated the activation of Wnt/β-catenin pathway, and the binding of MCM protein to chromatin to exert its role. Furthermore, knockdown of HBO1 was found to reverse the effect of NCAPG2 overexpression on cell proliferation, migration, invasion, and cell cycle. In addition, knockdown of NCAPG2 attenuated glioblastoma tumorigenesis in vivo. Taken together, the findings demonstrated that NCAPG2 facilitates the malignancy of glioblastoma cells and xenograft tumor growth via HBO1 activation by phosphorylation. These results improve our understanding of the mechanism underlying glioblastoma progression and may contribute to the identification of novel biomarkers and therapeutic targets for glioblastoma.
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Affiliation(s)
- Jianheng Wu
- Department of Neurosurgery, the People's Hospital of GaoZhou, Gaozhou, Maoming, 525200, Guangdong Province, China
| | - Linfan Li
- Department of Neurosurgery, the People's Hospital of GaoZhou, Gaozhou, Maoming, 525200, Guangdong Province, China
| | - Guangyuan Jiang
- Department of Neurosurgery, Nanxishan Hospital, Guilin, 541000, Guangxi Zhuang Autonomous Region, China
| | - Hui Zhan
- Department of Neurosurgery, the People's Hospital of GaoZhou, Gaozhou, Maoming, 525200, Guangdong Province, China
| | - Xiumei Zhu
- Department of Pathology, the People's Hospital of GaoZhou, Gaozhou, Maoming, 525200, Guangdong, China
| | - Wujun Yang
- Department of Neurosurgery, The Central Hospital of Enshi Tujia and Miao Autonomous Prefecture(Enshi Clinical College of Wuhan University), Enshi Tujia and Miao Autonomous Prefecture, 445000, Hubei, China.
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Cai F, Fu W, Tang L, Tang J, Sun J, Fu G, Ye G. Hsa_circ_0000515 is a novel circular RNA implicated in the development of breast cancer through its regulation of the microRNA-296-5p/CXCL10 axis. FEBS J 2021; 288:861-883. [PMID: 32446265 DOI: 10.1111/febs.15373] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 12/06/2019] [Accepted: 05/19/2020] [Indexed: 12/20/2022]
Abstract
Cancer metastasis is a major cause of death among women afflicted with breast cancer (BC) and understanding the molecular processes involved is a major focus in BC research. Circular RNAs (circRNAs) have emerged as genomic regulatory molecules in carcinogenesis and metastasis; however, their role in BC is unclear. We characterized a novel circRNA, hsa_circ_0000515, in context of BC. We collected 340 cancerous tissues surgically resected from BC patients and found hsa_circ_0000515 was upregulated in BC tissues and associated with poor prognosis of BC. Silencing of hsa_circ_0000515 impaired cell cycle progression, cell proliferation, and invasion, attenuated inflammatory response, and reduced the proangiogenetic potential of BC cells. RNA pull-down and dual-luciferase reporter gene assays showed that hsa_circ_0000515 binds miR-296-5p, preventing it from repressing CXCL10 expression. We also observed that miR-296-5p inhibition or CXCL10 overexpression promoted cell cycle progression, restored proliferative, invasive and proangiogenetic abilities, and increased inflammatory response in MCF-7 cells in the absence of hsa_circ_0000515. In vivo analyses showed that partial loss of hsa_circ_0000515 reduced the tumor growth of MCF-7 cells in nude mice. The key findings from this study revealed that targeting hsa_circ_0000515 might be an effective strategy to combat BC.
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Affiliation(s)
- Fenglin Cai
- Department of General Surgery, Clinical Medical College of Yangzhou University & Northern Jiangsu People's Hospital, Yangzhou, China
| | - Wenjie Fu
- Department of General Surgery, Jiangsu Provincial Corps Hospital of Chinese People's Armed Police Forces, Yangzhou, China
| | - Lei Tang
- Department of General Surgery, Clinical Medical College of Yangzhou University & Northern Jiangsu People's Hospital, Yangzhou, China
| | - Jinhai Tang
- Department of General Surgery, the First Affiliated Hospital with Nanjing Medical University, Nanjing, China
| | - Jinming Sun
- Department of General Surgery, Jiangdu People's Hospital of Yangzhou, Yangzhou, China
| | - Guangshun Fu
- Department of General Surgery, Jiangdu People's Hospital of Yangzhou, Yangzhou, China
| | - Gang Ye
- Department of General Surgery, Jiangdu People's Hospital of Yangzhou, Yangzhou, China
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miR-296-5p Inhibits the Secretion of Pulmonary Surfactants in Pulmonary Epithelial Cells via the Downregulation of Wnt7b/ β-Catenin Signaling. BIOMED RESEARCH INTERNATIONAL 2021; 2021:4051504. [PMID: 33490270 PMCID: PMC7803427 DOI: 10.1155/2021/4051504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 12/12/2020] [Accepted: 12/24/2020] [Indexed: 11/17/2022]
Abstract
Neonatal respiratory distress syndrome (NRDS) is a common disease that occurs in premature infants. However, the mechanisms underlying the disease remain unclear. microRNAs (miRNAs) have been indicated to play a crucial role in the development of NRDS. In this study, we aimed to explore the regulatory mechanisms of miR-296-5p in NRDS. The expression levels of miR-296-5p in preterm infants with NRDS were determined using quantitative reverse-transcription polymerase chain reaction (RT-qPCR). A549 cells were transfected with lentiviral vectors encoding miR-296-5p, and the transfection efficiency was determined using RT-qPCR. Flow cytometry and CCK8 assay were performed to measure apoptosis and proliferation of A549 cells, respectively. The protein levels of pulmonary surfactant SP-A (SFTPA1), SP-B, Wnt7b, and β-catenin were measured using western blotting. We demonstrated an upregulation of miR-296-5p in NRDS. The miR-296-5p was successfully overexpressed in A549 cells via lentivirus transfection, and the upregulation of miR-296-5p inhibited cell proliferation and secretion of SP-A and SP-B and also induced downregulation of the Wnt7b/β-catenin in vitro. Therefore, miR-296-5p inhibits cell proliferation and secretion of pulmonary surfactants in A549 cells via downregulation of Wnt7b/β-catenin signaling.
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Chen M, Chen C, Luo H, Ren J, Dai Q, Hu W, Zhou K, Tang X, Li X. MicroRNA-296-5p inhibits cell metastasis and invasion in nasopharyngeal carcinoma by reversing transforming growth factor-β-induced epithelial-mesenchymal transition. Cell Mol Biol Lett 2020; 25:49. [PMID: 33292168 PMCID: PMC7640465 DOI: 10.1186/s11658-020-00240-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 10/26/2020] [Indexed: 12/14/2022] Open
Abstract
Aim To explore the effect of miR-296-5p on the metastasis of nasopharyngeal carcinoma (NPC) cells and investigate the underlying mechanism. Methods The expressions of miR-296-5p in NPC tissues and cells were determined using GSE32920 database analysis and real-time PCR and miRNA microarray assays. An miR-296-5p mimic and inhibitor were transfected into NPC cells. Then, immunofluorescence imaging, scratch wound-healing, transwell migration and invasion assays were used to observe the effects of miR-296-5p on cell metastasis and invasion. Real-time PCR and western blotting were carried out to detect the expressions of genes and proteins related to epithelial–mesenchymal transition (EMT). A dual luciferase reporter assay was used to identify whether TGF-β is the target gene of miR-296-5p. Finally, TGF-β expression plasmids were transfected into NPC cells to verify the role of TGF-β in the miR-296-5p-mediated inhibition of nasopharyngeal carcinoma cell metastasis. Results Our results show that miR-296-5p inhibits the migratory and invasive capacities of NPC cells by targeting TGF-β, which suppresses EMT. Importantly, the miR-296-5p level was significantly lower in human NPC tissues than in adjacent normal tissues. It also negatively correlated with TGF-β and was significantly associated with the lymph node metastasis of patients with NPC. Conclusions Our findings show that miR-296-5p represses the EMT-related metastasis of NPC by targeting TGF-β. This provides new insight into the role of miR-296-5p in regulating NPC metastasis and invasiveness.
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Affiliation(s)
- Meihui Chen
- Institute of Biochemistry and Molecular Biology of Guangdong Medical University, No. 2 Wenming Dong Road, Xiashan District, Zhanjiang, 524023, Guangdong, China.,Department of Clinical Laboratory of Zhanjiang Central Hospital, Zhanjiang, 524023, China
| | - Chen Chen
- Institute of Biochemistry and Molecular Biology of Guangdong Medical University, No. 2 Wenming Dong Road, Xiashan District, Zhanjiang, 524023, Guangdong, China
| | - Haiqing Luo
- Center of Oncology of The Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524023, China
| | - Jing Ren
- Institute of Biochemistry and Molecular Biology of Guangdong Medical University, No. 2 Wenming Dong Road, Xiashan District, Zhanjiang, 524023, Guangdong, China
| | - Qiuqin Dai
- Institute of Biochemistry and Molecular Biology of Guangdong Medical University, No. 2 Wenming Dong Road, Xiashan District, Zhanjiang, 524023, Guangdong, China
| | - Wenjia Hu
- Institute of Biochemistry and Molecular Biology of Guangdong Medical University, No. 2 Wenming Dong Road, Xiashan District, Zhanjiang, 524023, Guangdong, China
| | - Keyuan Zhou
- Institute of Biochemistry and Molecular Biology of Guangdong Medical University, No. 2 Wenming Dong Road, Xiashan District, Zhanjiang, 524023, Guangdong, China
| | - Xudong Tang
- Institute of Biochemistry and Molecular Biology of Guangdong Medical University, No. 2 Wenming Dong Road, Xiashan District, Zhanjiang, 524023, Guangdong, China.
| | - Xiangyong Li
- Institute of Biochemistry and Molecular Biology of Guangdong Medical University, No. 2 Wenming Dong Road, Xiashan District, Zhanjiang, 524023, Guangdong, China.
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Wang L. ELF1-activated FOXD3-AS1 promotes the migration, invasion and EMT of osteosarcoma cells via sponging miR-296-5p to upregulate ZCCHC3. J Bone Oncol 2020; 26:100335. [PMID: 33204608 PMCID: PMC7653078 DOI: 10.1016/j.jbo.2020.100335] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 10/16/2020] [Accepted: 10/16/2020] [Indexed: 12/14/2022] Open
Abstract
Osteosarcoma (OS) is a malignant carcinoma often occurring in adolescents. The critical function of long non-coding RNAs (lncRNAs) in cancer arouses increasing attention. Nevertheless, the specific function of FOXD3 Antisense RNA 1 (FOXD3-AS1) in OS has not been understood yet. In this research, FOXD3-AS1 showed strengthened level in OS specimens and cell lines, and its deficiency restrained cell migration, invasion and epithelial-to-mesenchymal transition (EMT) in OS. Then, we confirmed the interaction of FOXD3-AS1 with microRNA-296-5p (miR-296-5p) and that miR-296-5p overexpression blocked OS cell migration, invasion and EMT. Besides, miR-296-5p targeted zinc finger CCHC-type containing 3 (ZCCHC3), and FOXD3-AS1 released ZCCHC3 via sequestering miR-296-5p. Moreover, rescue assays delineated that ZCCHC3 upregulation neutralized the inhibitory effect of FOXD3-AS1 depletion on in vitro behaviors and in vivo tumorigenesis in OS. In addition, E74 like ETS transcription factor 1 (ELF1) stimulated FOXD3-AS1 transcription, and ELF1 silence-suppressed malignant phenotypes of OS cells were offset by FOXD3-AS1 upregulation. Overall, present work elucidated that ELF1-activated FOXD3-AS1 aggravated cell migration, invasion and EMT in OS via absorbing miR-296-5p to augment ZCCHC3 expression, which might provide potential guidance for researchers to find effective targets for OS treatment.
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Affiliation(s)
- Lei Wang
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
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Ma C, Ma N, Qin L, Miao C, Luo M, Liu S. DICER1-AS1 Promotes the Malignant Behaviors of Colorectal Cancer Cells by Regulating miR-296-5p/STAT3 Axis. Cancer Manag Res 2020; 12:10035-10046. [PMID: 33116860 PMCID: PMC7568600 DOI: 10.2147/cmar.s252786] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 07/10/2020] [Indexed: 12/21/2022] Open
Abstract
Background Long non-coding RNA (lncRNA) exerts a regulatory role in the occurrence and progression of tumors. This study aimed at probing into the function and mechanism of lncRNA DICER1 antisense RNA 1 (DICER1-AS1) in colorectal cancer (CRC). Methods The expressions of DICER1-AS1, miR-296-5p and STAT3 mRNA were tested by quantitative real-time polymerase chain reaction (qRT-PCR). Cell counting kit-8 (CCK-8) assay was employed to detect cell proliferation, and Transwell was used to detect cell migration and invasion. In addition, the expressions of apoptosis-related proteins Bax and Bcl2 were detected by Western blot. Interactions between DICER1-AS1 and miR-296-5p, and miR-296-5p and STAT3 were predicted and determined by bioinformatics analysis, luciferase reporter assay and RNA binding protein immunoprecipitation (RIP) assay. Results The expressions of DICER1-AS1 and STAT3 mRNA were significantly up-regulated while miR-296-5p expression was remarkably down-regulated in CRC tissues and cell lines. Over-expression of DICER1-AS1 or transfection of miR-296-5p inhibitors could promote the proliferation, migration and invasion and inhibit apoptosis of CRC cells, whereas knockdown of DICER1-AS1 or transfection of miR-296-5p mimics had the opposite effects. Additionally, DICER1-AS1 could down-regulate miR-296-5p expression via sponging it. DICER1-AS1 also enhanced the expression of STAT3, which was identified as a target gene of miR-296-5p. Conclusion DICER1-AS1 acts as an oncogenic lncRNA in CRC via modulating miR-296-5p/STAT3 axis. Our results provide a new direction for the diagnosis and treatment of CRC.
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Affiliation(s)
- Chuanyu Ma
- Department of Proctology, Linyi Central Hospital, Linyi, Shandong Province, People's Republic of China
| | - Ning Ma
- Department of Proctology, Linyi Central Hospital, Linyi, Shandong Province, People's Republic of China
| | - Lili Qin
- Department of Proctology, Linyi Central Hospital, Linyi, Shandong Province, People's Republic of China
| | - Chuanna Miao
- Department of Proctology, Linyi Central Hospital, Linyi, Shandong Province, People's Republic of China
| | - Minglei Luo
- Department of Proctology, Linyi Central Hospital, Linyi, Shandong Province, People's Republic of China
| | - Shuhong Liu
- Department of Radiotherapy, Linyi Cancer Hospital, Linyi, Shandong Province, People's Republic of China
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25
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Guan J, Liu P, Wang A, Wang B. Long non‑coding RNA ZEB2‑AS1 affects cell proliferation and apoptosis via the miR‑122‑5p/PLK1 axis in acute myeloid leukemia. Int J Mol Med 2020; 46:1490-1500. [PMID: 32700753 PMCID: PMC7447321 DOI: 10.3892/ijmm.2020.4683] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Accepted: 05/26/2020] [Indexed: 12/13/2022] Open
Abstract
Acute myeloid leukemia (AML) is a highly heterogeneous disease featured by the clonal accumulation of immature myeloid cells. Zinc finger E‑box binding homeobox 2 (ZEB2)‑antisense RNA 1 (AS1) has been verified to participate in the progression of several types of cancer, including AML. However, the potential mechanisms of ZEB2‑AS1 in AML have not yet been fully elucidated. The present study aimed to elucidate the role and regulatory mechanisms of ZEB2‑AS1 in AML. The expression of ZEB2‑AS1, microRNA‑122‑5p (miRNA/miR‑122‑5p) and polo‑like kinase 1 (PLK1) was detected by reverse transcription‑quantitative polymerase chain reaction (RT‑qPCR) in AML tissues or cells. Cell proliferation and apoptosis were examined by methyl thiazolyl tetrazolium (MTT) assay and apoptosis assay, respectively. The protein levels were examined by western blot analysis. The targeted sequence between miR‑122‑5p and ZEB2‑AS1 or PLK1 was predicted using an online database and verified by dual‑luciferase reporter assay. A mouse tumor xenograft model was established to confirm the effects of ZEB2‑AS1 on tumor growth in vivo. The results revealed that the expression levels of ZEB2‑AS1 and PLK1 were upregulated, while those of miR‑122‑5p were downregulated in AML tissues and cells. The knockdown of ZEB2‑AS1 inhibited proliferation and induced apoptosis in vitro, and inhibited tumor growth in vivo. By experimental verification, ZEB2‑AS1 was found to negatively regulate miR‑122‑5p expression and PLK1 was found to be a target gene of miR‑122‑5p. Furthermore, ZEB2‑AS1 was verified to regulate the expression of PLK1 by sponging miR‑122‑5p in AML cells. On the whole, the findings of the present study demonstrate that ZEB2‑AS1 promotes cell proliferation and inhibits apoptosis, at least partly by targeting PLK1 mediated by miR‑122‑5p in AML cells.
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MESH Headings
- Animals
- Apoptosis
- Cell Cycle Proteins/antagonists & inhibitors
- Cell Cycle Proteins/biosynthesis
- Cell Cycle Proteins/genetics
- Cell Cycle Proteins/physiology
- Cell Division
- Cell Line, Tumor
- Child
- Child, Preschool
- Female
- Gene Knockdown Techniques
- Genes, Reporter
- Heterografts
- Humans
- Leukemia, Myeloid, Acute/genetics
- Leukemia, Myeloid, Acute/pathology
- Male
- Mice
- Mice, Nude
- MicroRNAs/biosynthesis
- MicroRNAs/genetics
- MicroRNAs/physiology
- Neoplasm Proteins/antagonists & inhibitors
- Neoplasm Proteins/biosynthesis
- Neoplasm Proteins/genetics
- Neoplasm Proteins/physiology
- Protein Serine-Threonine Kinases/antagonists & inhibitors
- Protein Serine-Threonine Kinases/biosynthesis
- Protein Serine-Threonine Kinases/genetics
- Protein Serine-Threonine Kinases/physiology
- Proto-Oncogene Proteins/antagonists & inhibitors
- Proto-Oncogene Proteins/biosynthesis
- Proto-Oncogene Proteins/genetics
- Proto-Oncogene Proteins/physiology
- RNA, Long Noncoding/biosynthesis
- RNA, Long Noncoding/genetics
- RNA, Long Noncoding/physiology
- RNA, Neoplasm/biosynthesis
- RNA, Neoplasm/genetics
- RNA, Neoplasm/physiology
- Signal Transduction/genetics
- Signal Transduction/physiology
- Polo-Like Kinase 1
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Affiliation(s)
- Jianmin Guan
- Department of Internal Medicine, Heze Medical College
| | - Ping Liu
- Department of Hematology, Heze Municipal Hospital
| | - Aixia Wang
- Department of Pharmacy, Chinese Medicine Hospital of Mudan District
| | - Bo Wang
- Department of Blood Transfusion, Heze Municipal Hospital, Heze, Shandong 274000, P.R. China
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26
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Xu T, Wang M, Jiang L, Ma L, Wan L, Chen Q, Wei C, Wang Z. CircRNAs in anticancer drug resistance: recent advances and future potential. Mol Cancer 2020; 19:127. [PMID: 32799866 PMCID: PMC7429705 DOI: 10.1186/s12943-020-01240-3] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 07/31/2020] [Indexed: 12/13/2022] Open
Abstract
CircRNAs are a novel class of RNA molecules with a unique closed continuous loop structure. CircRNAs are abundant in eukaryotic cells, have unique stability and tissue specificity, and can play a biological regulatory role at various levels, such as transcriptional and posttranscriptional levels. Numerous studies have indicated that circRNAs serve a crucial purpose in cancer biology. CircRNAs regulate tumor behavioral phenotypes such as proliferation and migration through various molecular mechanisms, such as miRNA sponging, transcriptional regulation, and protein interaction. Recently, several reports have demonstrated that they are also deeply involved in resistance to anticancer drugs, from traditional chemotherapeutic drugs to targeted and immunotherapeutic drugs. This review is the first to summarize the latest research on circRNAs in anticancer drug resistance based on drug classification and to discuss their potential clinical applications.
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Affiliation(s)
- Tianwei Xu
- Cancer Medical Center, The Second Affiliated Hospital of Nanjing Medical University, Jiangjiayuan road 121#, Nanjing, 210011, Jiangsu, P.R. China
| | - Mengwei Wang
- Cancer Medical Center, The Second Affiliated Hospital of Nanjing Medical University, Jiangjiayuan road 121#, Nanjing, 210011, Jiangsu, P.R. China
| | - Lihua Jiang
- Cancer Medical Center, The Second Affiliated Hospital of Nanjing Medical University, Jiangjiayuan road 121#, Nanjing, 210011, Jiangsu, P.R. China
| | - Li Ma
- Cancer Medical Center, The Second Affiliated Hospital of Nanjing Medical University, Jiangjiayuan road 121#, Nanjing, 210011, Jiangsu, P.R. China
| | - Li Wan
- Department of Oncology, The Affiliated Huai'an No.1 People's Hospital of Nanjing Medical University, Huai'an, 223300, Jiangsu, China
| | - Qinnan Chen
- Cancer Medical Center, The Second Affiliated Hospital of Nanjing Medical University, Jiangjiayuan road 121#, Nanjing, 210011, Jiangsu, P.R. China
| | - Chenchen Wei
- Cancer Medical Center, The Second Affiliated Hospital of Nanjing Medical University, Jiangjiayuan road 121#, Nanjing, 210011, Jiangsu, P.R. China.
| | - Zhaoxia Wang
- Cancer Medical Center, The Second Affiliated Hospital of Nanjing Medical University, Jiangjiayuan road 121#, Nanjing, 210011, Jiangsu, P.R. China.
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Wang L, Wu H, Chu F, Zhang L, Xiao X. Knockdown of circ_0000512 Inhibits Cell Proliferation and Promotes Apoptosis in Colorectal Cancer by Regulating miR-296-5p/RUNX1 Axis. Onco Targets Ther 2020; 13:7357-7368. [PMID: 32821119 PMCID: PMC7419622 DOI: 10.2147/ott.s250495] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Accepted: 07/03/2020] [Indexed: 01/10/2023] Open
Abstract
Background Colorectal cancer (CRC) is one of the leading causes of cancer-related death worldwide. Increasing evidence showed that circular RNAs (circRNAs) played critical roles in the progression of CRC. However, the effects and underlying mechanisms of circ_0000512 in CRC progression remain unclear. Methods The expression levels of circ_0000512, microRNA-296-5p (miR-296-5p) and runt-related transcription factor 1 (RUNX1) were analyzed by quantitative real-time polymerase chain reaction (qRT-PCR). Cell viability, colony formation, cell cycle distribution and cell apoptosis were detected by Cell Counting Kit-8 (CCK-8) assay, colony formation assay and flow cytometry analysis, respectively. Western blot assay was utilized to measure the protein expression of Cyclin D1, Cleaved Caspase-3 and RUNX1. The interaction between miR-296-5p and circ_0000512 or RUNX1 was predicted by starBase and verified by dual-luciferase reporter assay, RNA immunoprecipitation (RIP) assay and RNA pull-down assay. The mice xenograft model was established to explore the function of circ_0000512 in vivo. Results The expression of circ_0000512 was increased in CRC tissues and cells. Knockdown of circ_0000512 suppressed cell viability and colony formation and arrested the cells at the G0/G1 phase while it accelerated apoptosis in CRC cells. Mechanistically, circ_0000512 could increase RUNX1 expression by acting as a molecular sponge of miR-296-5p in CRC cells. Furthermore, miR-296-5p downregulation or RUNX1 overexpression reversed the anti-proliferation and pro-apoptosis effects caused by circ_0000512 knockdown in CRC cells. In addition, circ_0000512 interference inhibited tumor growth by upregulating miR-296-5p and downregulating RUNX1 in vivo. Conclusion Knockdown of circ_0000512 inhibited cell proliferation and induced apoptosis in CRC cell by regulating miR-296-5p/RUNX1 axis, which might provide a potential therapeutic target for CRC treatment.
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Affiliation(s)
- Lihong Wang
- Department of Gastroenterology, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou 450000, Henan, People's Republic of China
| | - Huili Wu
- Department of Gastroenterology, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou 450000, Henan, People's Republic of China
| | - Feifei Chu
- Department of Gastroenterology, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou 450000, Henan, People's Republic of China
| | - Li Zhang
- Department of Gastroenterology, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou 450000, Henan, People's Republic of China
| | - Xingguo Xiao
- Department of Gastroenterology, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou 450000, Henan, People's Republic of China
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Chiricosta L, Silvestro S, Gugliandolo A, Marconi GD, Pizzicannella J, Bramanti P, Trubiani O, Mazzon E. Extracellular Vesicles of Human Periodontal Ligament Stem Cells Contain MicroRNAs Associated to Proto-Oncogenes: Implications in Cytokinesis. Front Genet 2020; 11:582. [PMID: 32582296 PMCID: PMC7287171 DOI: 10.3389/fgene.2020.00582] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 05/12/2020] [Indexed: 12/16/2022] Open
Abstract
The human Periodontal Ligament Stem Cells (hPDLSCs) exhibit self-renewal capacity and clonogenicity potential. The Extracellular Vesicles (EVs) secreted by hPDLSCs are particles containing lipids, proteins, mRNAs, and non-coding RNAs, among which microRNAs, that are important in intercellular communication. The purpose of this study was the analysis of the non-coding RNAs contained in the EVs derived from hPDLSCs using Next Generation Sequencing. Moreover, our data were enriched using bioinformatic tools. The analysis highlighted the presence of non-coding RNAs and five microRNAs: MIR24-2, MIR142, MIR335, MIR490, and MIR296. Our results show that these miRNAs target the genes classified in two terms of the Gene Ontology: "Ras protein signal transduction" and "Actin/microtubule cytoskeleton organization." Noteworthy, the in-deep analysis of our EVs highlights that the miRNAs could be implicated in the silencing of proto-oncogenes involved in 12 different types of tumors.
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Affiliation(s)
| | | | | | - Guya Diletta Marconi
- Department of Medical, Oral and Biotechnological Sciences, University "G. d'Annunzio" Chieti and Pescara, Chieti, Italy
| | | | | | - Oriana Trubiani
- Department of Medical, Oral and Biotechnological Sciences, University "G. d'Annunzio" Chieti and Pescara, Chieti, Italy
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29
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Cao Z, Liu W, Qu X, Bi H, Sun X, Yu Q, Cheng G. miR-296-5p inhibits IL-1β-induced apoptosis and cartilage degradation in human chondrocytes by directly targeting TGF-β1/CTGF/p38MAPK pathway. Cell Cycle 2020; 19:1443-1453. [PMID: 32378978 DOI: 10.1080/15384101.2020.1750813] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Osteoarthritis (OA) is characterized by apoptosis of chondrocytes and an imbalance of extracellular matrix (ECM) synthesis and catabolism. Emerging evidence has demonstrated that miRNAs are involved in OA pathologies, but the role of miR-296-5p in OA remains unclear. The present study proposes to reveal the functions and mechanisms of miR-296-5p in a cell model of OA. In this study, human chondrocytes were treated with 5 ml interleukin-1 beta (IL-1β) to induce apoptosis and cartilage degradation. Our results showed that miR-296-5p was downregulated in chondrocytes stimulated with IL-1β. Overexpressed miR-296-5p enhanced cell proliferation and inhibited apoptosis and matrix degrading enzyme expression in response to IL-1β stimulation, and knockdown of miR-296-5p showed the opposite effect. Further, we found that miR-296-5p directly targeted the 3'-untranslated region (3'-UTR) of TGF-β1 mRNA, and miR-296-5p inactivated the TGF-β1/CTGF/p38MAPK signaling pathway. Overexpression of TGF-β1 alleviated the inhibition of miR-296-5p on chondrocyte apoptosis and cartilage degradation. In conclusion, miR-296-5p inhibited the progression of OA through the CTGF/p38MAPK pathway by directly targeting TGF-β1.
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Affiliation(s)
- Zhilin Cao
- Department of Orthopedics, Yantaishan Hospital , Yantai, Shandong Province, China
| | - Wenguang Liu
- Department of Joint Surgery, The Second Hospital of Shandong University , Jinan, Shandong Province, China
| | - Xiaoyi Qu
- Department of Nursing, Nurse School of Yantai City of Shandong Province , China
| | - Haiyong Bi
- Department of Orthopedics, Yantaishan Hospital , Yantai, Shandong Province, China
| | - Xiujiang Sun
- Department of Orthopedics, Yantaishan Hospital , Yantai, Shandong Province, China
| | - Qian Yu
- Department of Hospital Surgary, Yantaishan Hospital , Yantai, Shandong Province, China
| | - Gong Cheng
- Department of Orthopedics, Yantaishan Hospital , Yantai, Shandong Province, China
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30
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Chen Y, Gao H, Li Y. Inhibition of LncRNA FOXD3-AS1 suppresses the aggressive biological behaviors of thyroid cancer via elevating miR-296-5p and inactivating TGF-β1/Smads signaling pathway. Mol Cell Endocrinol 2020; 500:110634. [PMID: 31678422 DOI: 10.1016/j.mce.2019.110634] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 09/27/2019] [Accepted: 10/26/2019] [Indexed: 12/12/2022]
Abstract
BACKGROUND Thyroid cancer is the most common malignant tumor with relatively high incidence and mortality in endocrine system. Research about thyroid cancer-related targets is the basis for the diagnosis of thyroid cancer and the development of new drugs. However, the predictive value of long non-coding RNA (lncRNA) for the diagnosis and prognosis of thyroid cancer is still in the preliminary stage of exploration. Thus, we for the first time investigated the effects and associated regulatory mechanism of lncRNA Forkhead box D3 antisense RNA 1 (FOXD3-AS1) in thyroid cancer in vitro and in vivo. METHODS Quantitative real-time polymerase chain reaction (qRT-PCR) was used to measure the expression of lncRNA FOXD3-AS1 and miR-296-5p. Cell proliferation was detected through colony formation assay. Cell cycle was analyzed through flow cytometry. Cell mobility was valued through transwell invasion assay and wound healing assay. Western blotting was used to examine the expression of proteins related to cell proliferation and cell migration and TGF-β1/Smads signaling pathway. Luciferase reporter assay was used to verify the targeting relationship between FOXD3-AS1 and miR-296-5p. Tumor xenograft model was established and immunohistochemistry (IHC) was used to examine the expression of Ki67 and VEGF. RESULTS We found that the expression of lncRNA FOXD3-AS1was upregulated and it had negative correlation with the level of miR-296-5p in thyroid cancer tissues and cells. LncRNA FOXD3-AS1 knockdown effectively suppressed cell proliferation and cell invasion in vitro. Further study revealed that miR-296-5p was a target of lncRNA FOXD3-AS1 and FOXD3-AS1 exerted anti-tumor effect through up-regulating miR-296-5p. Moreover, we found that FOXD3-AS1 knockdown suppressed the aggressive biological behaviors of thyroid cancer through inactivating the TGF-β1/Smads signaling pathway. Subsequently, the in vivo experiments further verified that the FOXD3-AS1/miR-296-5p axis exerted obvious anti-tumor effect through inhibiting tumor growth and metastasis and the TGF-β1/Smads signaling pathway was also inactivated in vivo by the inhibition of FOXD3-AS1. CONCLUSION Inhibition of LncRNA FOXD3-AS1 suppresses the aggressive biological behaviors of thyroid cancer via elevating miR-296-5p and inactivating TGF-β1/Smads signaling pathway.
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Affiliation(s)
- Yonghui Chen
- Department of Nuclear Medicine, Peking Union Medical College Hospital, Beijing, 100730, China.
| | - Hongbo Gao
- Department of Radionuclide Treatment center, Beijing Nuclear Industry Hospital, Beijing, 100045, China
| | - Yaomei Li
- Department of Nuclear Medicine, The Mine Hospital of Xuzhou, Jiangsu, 221000, China
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Circ_0076305 regulates cisplatin resistance of non-small cell lung cancer via positively modulating STAT3 by sponging miR-296–5p. Life Sci 2019; 239:116984. [DOI: 10.1016/j.lfs.2019.116984] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 10/09/2019] [Accepted: 10/17/2019] [Indexed: 12/24/2022]
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Li Y, Ding X, Xiu S, Du G, Liu Y. LncRNA NEAT1 Promotes Proliferation, Migration And Invasion Via Regulating miR-296-5p/CNN2 Axis In Hepatocellular Carcinoma Cells. Onco Targets Ther 2019; 12:9887-9897. [PMID: 31819486 PMCID: PMC6874127 DOI: 10.2147/ott.s228917] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Accepted: 10/30/2019] [Indexed: 01/10/2023] Open
Abstract
Background Emerging evidence has revealed that long noncoding RNA nuclear paraspeckle assembly transcript 1 (lncRNA NEAT1) is implicated in the development of various cancers. However, the underlying molecular mechanisms of NEAT1 in hepatocellular carcinoma (HCC) remain unclear. Methods The expression of NEAT1, miR-296-5p and Calponin 2 (CNN2) was detected by quantitative real-time polymerase chain reaction or Western blot, respectively. Cell proliferation and apoptosis were analyzed by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay or flow cytometry, respectively. Transwell assay was used to determine cell migration and invasion. The interaction between miR-296-5p and NEAT1 or CNN2 was analyzed by dual-luciferase reporter assay and RIP assay. Huh7 cells transfected with sh-NEAT1 were used to establish the murine xenograft model. Results NEAT1 was elevated in HCC tissues and cell lines. Knockdown of NEAT1 significantly inhibited proliferation, migration and invasion of HCC cells in vitro as well as tumor growth in vivo. NEAT1 was a sponge of miR-296-5p and remarkably reduced the level of miR-296-5p in HCC cells. Furthermore, NEAT1 silence significantly decreased the expression of CNN2, which was the direct target of miR-296-5p. Besides that, the tumor suppression caused by NEAT1 silence could be rescued by CNN2 restoration or miR-296-5p inhibition in vitro. Additionally, NEAT1 indirectly regulated CNN2 expression by competing to miR-296-5p in vitro and in vivo. Conclusion LncRNA NEAT1 contributes to HCC progression by regulating miR-296-5p/CNN2 axis, providing a novel regulatory mechanism for HCC development and a promising therapeutic target for the HCC treatment.
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Affiliation(s)
- Yandong Li
- Department of Hepatopancreatobiliary Surgery, The First Hospital of Jilin University, Changchun City, Jilin, People's Republic of China
| | - Xiyan Ding
- Department of Neurology, Beihua University, Jilin City, Jilin, People's Republic of China
| | - Shuqiu Xiu
- Department of Medical, Beihua University, Jilin City, Jilin, People's Republic of China
| | - Guobin Du
- President's Office, The Sixth Peoples's Hospital of Jilin City, Jilin City, Jilin, People's Republic of China
| | - Yahui Liu
- Department of Hepatopancreatobiliary Surgery, The First Hospital of Jilin University, Changchun City, Jilin, People's Republic of China
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Zhou JM, Hu SQ, Jiang H, Chen YL, Feng JH, Chen ZQ, Wen KM. OCT4B1 Promoted EMT and Regulated the Self-Renewal of CSCs in CRC: Effects Associated with the Balance of miR-8064/PLK1. MOLECULAR THERAPY-ONCOLYTICS 2019; 15:7-20. [PMID: 31650021 PMCID: PMC6804455 DOI: 10.1016/j.omto.2019.08.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Accepted: 08/20/2019] [Indexed: 12/24/2022]
Abstract
Cancer stem cells (CSCs) are the main cause of tumor generation, recurrence, metastasis, and therapy failure in various malignancies including colorectal cancer (CRC). Accumulating evidence suggests that tumor cells can acquire CSC characteristics through the epithelial-mesenchymal transition (EMT) process. However, the molecular mechanism of CSCs remains unclear. OCT4B1 is a transcript of OCT4, which is initially expressed in embryonic stem and carcinoma cells, and is involved in the regulation and maintenance of an undifferentiated state of stem cells. In this study, three-dimensional (3D) microspheres were confirmed as CRC stem cells. Compared with that of parental cells, their self-renewal ability was significantly increased, and OCT4B1 expression was increased and promoted the EMT process. The knockdown of OCT4B1 decreased the self-renewal of CSCs and reversed EMT. Moreover, OCT4B1 induced the expression of Polo-like kinase 1 (PLK1), which is a key regulator of EMT in tumor cells. Further examination showed that OCT4B1 regulated the miR-8064/PLK1 balance to exert its function. Taken together, our data suggest that OCT4B1 may be involved in regulating the self-renewal of colorectal CSCs through EMT, which is at least partially due to the miR-8064/PLK1 balance. This study indicates that OCT4B1 is a potential therapeutic target for CRC by targeting CSCs.
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Affiliation(s)
- Jun-Min Zhou
- Department of Gastrointestinal Surgery, The Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563000, China
| | - Shui-Qing Hu
- Department of Gastrointestinal Surgery, The Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563000, China
| | - Hang Jiang
- Department of Gastrointestinal Surgery, The Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563000, China
| | - Yi-Lin Chen
- Department of Gastrointestinal Surgery, The Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563000, China
| | - Ji-Hong Feng
- Department of Oncology, The Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563000, China
| | - Zheng-Quan Chen
- Department of Gastrointestinal Surgery, The Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563000, China
| | - Kun-Ming Wen
- Department of Gastrointestinal Surgery, The Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563000, China
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Kong Y, Yang L, Wei W, Lyu N, Zou Y, Gao G, Ou X, Xie X, Tang H. CircPLK1 sponges miR-296-5p to facilitate triple-negative breast cancer progression. Epigenomics 2019; 11:1163-1176. [PMID: 31337246 DOI: 10.2217/epi-2019-0093] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Aim: To investigate the role of circRNAs in triple-negative breast cancer (TNBC) and the underlying mechanisms. Materials & methods: We performed circRNA microarrays to explore the expression profiles of TNBC cell lines. Experiments in vitro and in vivo were conducted to explore the effects of circPLK1 on tumor proliferation and metastasis as well as the interaction between circPLK1, miR-296-5p and PLK1 in TNBC. Results & conclusion: CircPLK1 was significantly upregulated in TNBC and associated with poor survivals. CircPLK1 knockdown inhibited cell growth and invasion in vitro as well as tumor occurrence and metastasis in vivo. CircPLK1-miR-296-5p-PLK1 axis regulates tumor progression by ceRNA mechanism in TNBC, indicating that circPLK1 may serve as a prognostic factor and novel therapeutic target for TNBC.
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Affiliation(s)
- Yanan Kong
- Department of Breast Oncology, Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China; Collaborative Innovation Center of Cancer Medicine; Address: 651 East Dongfeng Road, Guangzhou, PR China
| | - Lu Yang
- Department of Breast Oncology, Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China; Collaborative Innovation Center of Cancer Medicine; Address: 651 East Dongfeng Road, Guangzhou, PR China
| | - Weidong Wei
- Department of Breast Oncology, Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China; Collaborative Innovation Center of Cancer Medicine; Address: 651 East Dongfeng Road, Guangzhou, PR China
| | - Ning Lyu
- Department of Minimally Invasive Interventional Radiology, Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China; Collaborative Innovation Center of Cancer Medicine; Address: 651 East Dongfeng Road, Guangzhou, PR China
| | - Yutian Zou
- Department of Breast Oncology, Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China; Collaborative Innovation Center of Cancer Medicine; Address: 651 East Dongfeng Road, Guangzhou, PR China
| | - Guanfeng Gao
- Department of Breast Oncology, Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China; Collaborative Innovation Center of Cancer Medicine; Address: 651 East Dongfeng Road, Guangzhou, PR China
| | - Xueqi Ou
- Department of Breast Oncology, Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China; Collaborative Innovation Center of Cancer Medicine; Address: 651 East Dongfeng Road, Guangzhou, PR China
| | - Xiaoming Xie
- Department of Breast Oncology, Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China; Collaborative Innovation Center of Cancer Medicine; Address: 651 East Dongfeng Road, Guangzhou, PR China
| | - Hailin Tang
- Department of Breast Oncology, Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China; Collaborative Innovation Center of Cancer Medicine; Address: 651 East Dongfeng Road, Guangzhou, PR China
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Wang L, Chen R, Zhang Y. miR-296-3p targets APEX1 to suppress cell migration and invasion of non-small-cell lung cancer. Oncol Lett 2019; 18:2612-2618. [PMID: 31402954 DOI: 10.3892/ol.2019.10572] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Accepted: 05/03/2019] [Indexed: 02/07/2023] Open
Abstract
Non-small-cell lung cancer (NSCLC) is the most common cause of cancer-associated mortality worldwide. MicroRNAs (miRs) are a class of small non-coding RNAs that are commonly dysregulated in human cancer. The aim of the current study was to evaluate the effect of miR-296-3p on the cell migration and invasion of NSCLC. Pairs of tumor tissues and para-cancerous tissues (n=50) were collected from patients with NSCLC, and the expression of miR-296-3p was analyzed by reverse transcription-quantitative polymerase chain reaction (RT-qPCR). Additionally, tumor cell viability, migration and invasion were examined in vitro using Cell Counting Kit-8, wound healing and Matrigel assays, respectively. Furthermore, potential targets of miR-296-3p were screened for using TargetScan and validated using a dual-luciferase reporter assay. The expression levels of phosphoinositide-3-kinase (PI3K), AKT serine/threonine kinase (AKT), mammalian target of rapamycin (mTOR), matrix metallopeptidase 2 (MMP2) and SRY-box 4 (SOX4) were detected by RT-qPCR and western blot analysis. The data indicated that miR-296-3p was downregulated in tumor tissues compared with adjacent normal tissues. Overexpression of miR-296-3p inhibited NSCLC cell viability, migration and invasion in vitro. Furthermore, apurinic/apyrimidinic endodeoxyribonuclease 1 (APEX1) was identified as a direct target of miR-296-3p. APEX1 expression was upregulated in tumor tissues compared with para-cancerous tissues, and the mRNA and protein expression levels of APEX1 were decreased following transfection of NSCLC cells with miR-296-3p mimics compared with control cells. Additional investigations revealed that miR-296-3p was involved in regulating the PI3K/AKT/mTOR signaling pathway, and miR-296-3p mimics decreased the mRNA and protein expression levels of MMP2 and SOX4. In summary, the findings demonstrated that miR-296-3p may function as a tumor suppressor, and inhibits the migration and invasion of NSCLC cells by targeting APEX1. miR-296-3p is therefore a potential therapeutic molecular modulator of NSCLC.
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Affiliation(s)
- Lifeng Wang
- Department of Respiration, Xi'an High-tech Hospital, Xi'an, Shaanxi 710075, P.R. China
| | - Ruilin Chen
- Department of Respiration, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi 710068, P.R. China
| | - Yongqing Zhang
- Department of Respiration, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi 710068, P.R. China
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Yang W, Zhao X, Han Y, Duan L, Lu X, Wang X, Zhang Y, Zhou W, Liu J, Zhang H, Zhao Q, Hong L, Fan D. Identification of hub genes and therapeutic drugs in esophageal squamous cell carcinoma based on integrated bioinformatics strategy. Cancer Cell Int 2019; 19:142. [PMID: 31139019 PMCID: PMC6530124 DOI: 10.1186/s12935-019-0854-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 05/10/2019] [Indexed: 12/13/2022] Open
Abstract
Background Esophageal squamous cell carcinoma (ESCC) is one of leading malignant cancers of gastrointestinal tract worldwide. Until now, the involved mechanisms during the development of ESCC are largely unknown. This study aims to explore the driven-genes and biological pathways in ESCC. Methods mRNA expression datasets of GSE29001, GSE20347, GSE100942, and GSE38129, containing 63 pairs of ESCC and non-tumor tissues data, were integrated and deeply analyzed. The bioinformatics approaches include identification of differentially expressed genes (DEGs) and hub genes, gene ontology (GO) terms analysis and biological pathway enrichment analysis, construction and analysis of protein-protein interaction (PPI) network, and miRNA-gene network construction. Subsequently, GEPIA2 database and qPCR assay were utilized to validate the expression of hub genes. DGIdb database was performed to search the candidate drugs for ESCC. Results Finally, 120 upregulated and 26 downregulated DEGs were identified. The functional enrichment of DEGs in ESCC were mainly correlated with cell cycle, DNA replication, deleted in colorectal cancer (DCC) mediated attractive signaling pathway, and Netrin-1 signaling pathway. The PPI network was constructed using STRING software with 146 nodes and 2392 edges. The most significant three modules in PPI were filtered and analyzed. Totally ten genes were selected and considered as the hub genes and nuclear division cycle 80 (NDC80) was closely related to the survival of ESCC patients. DGIdb database predicted 33 small molecules as the possible drugs for treating ESCC. Conclusions In summary, the data may provide new insights into ESCC pathogenesis and treatments. The candidate drugs may improve the efficiency of personalized therapy in future.
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Affiliation(s)
- Wanli Yang
- 1State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases, and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China
| | - Xinhui Zhao
- 1State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases, and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China
| | - Yu Han
- 2Department of Otolaryngology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Lili Duan
- 1State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases, and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China
| | - Xin Lu
- 3The School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, China
| | - Xiaoqian Wang
- 1State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases, and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China
| | - Yujie Zhang
- 1State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases, and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China
| | - Wei Zhou
- 1State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases, and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China
| | - Jinqiang Liu
- 1State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases, and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China
| | - Hongwei Zhang
- 1State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases, and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China
| | - Qingchuan Zhao
- 1State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases, and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China
| | - Liu Hong
- 1State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases, and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China
| | - Daiming Fan
- 1State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases, and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China
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Sheng M, Xie X, Wang J, Gu W. A Pathway-Based Strategy to Identify Biomarkers for Lung Cancer Diagnosis and Prognosis. Evol Bioinform Online 2019; 15:1176934319838494. [PMID: 30923439 PMCID: PMC6431770 DOI: 10.1177/1176934319838494] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2019] [Accepted: 02/24/2019] [Indexed: 12/23/2022] Open
Abstract
Current research has identified several potential biomarkers for lung cancer diagnosis or prognosis. However, most of these biomarkers are derived from a relatively small number of samples using algorithms at the gene level. Hence, gene expression signatures discovered in these studies have little overlaps. In this study, we proposed a new strategy to identify biomarkers from multiple datasets at the pathway level. We integrated the genome-wide expression data of lung cancer tissues from 13 published studies and applied our strategy to identify lung cancer diagnostic and prognostic biomarkers. We identified a 32-gene signature that differentiates lung adenocarcinomas from other lung cancer subtypes. We also discovered a 43-gene signature that can predict the outcome of human lung cancers. We tested their performance in several independent cohorts, which confirmed their robust prognostic and diagnostic power. Furthermore, we showed that the proposed gene expression signatures were independent of several traditional clinical indicators in lung cancer management. Our results suggest that the pathway-based strategy is useful to identify transcriptomic biomarkers from large-scale gene expression datasets that were collected from multiple sources.
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Affiliation(s)
- Mengying Sheng
- State Key Laboratory of Bioelectronics, School of Biological Sciences and Medical Engineering, Southeast University, Nanjing, China
| | - Xueying Xie
- State Key Laboratory of Bioelectronics, School of Biological Sciences and Medical Engineering, Southeast University, Nanjing, China
| | - Jun Wang
- Department of Thoracic Surgery, Jiangsu Province People's Hospital and the First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Wanjun Gu
- State Key Laboratory of Bioelectronics, School of Biological Sciences and Medical Engineering, Southeast University, Nanjing, China
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The promising role of miR-296 in human cancer. Pathol Res Pract 2018; 214:1915-1922. [DOI: 10.1016/j.prp.2018.09.026] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 09/08/2018] [Accepted: 09/28/2018] [Indexed: 12/18/2022]
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miR-296-5p suppresses EMT of hepatocellular carcinoma via attenuating NRG1/ERBB2/ERBB3 signaling. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2018; 37:294. [PMID: 30486894 PMCID: PMC6264612 DOI: 10.1186/s13046-018-0957-2] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/07/2018] [Accepted: 11/12/2018] [Indexed: 12/28/2022]
Abstract
BACKGROUND Accumulation of evidence indicates that miRNAs have crucial roles in the regulation of EMT-associated properties, such as proliferation, migration and invasion. However, the underlying molecular mechanisms are not entirely illustrated. Here, we investigated the role of miR-296-5p in hepatocellular carcinoma (HCC) progression. METHODS In vitro cell morphology, proliferation, migration and invasion were compared between HCC cell lines with up- or down-regulation of miR-296-5p. Immunofluorescence and Western blot immunofluorescence assays were used to detect the expression of EMT markers. Bioinformatics programs, luciferase reporter assay and rescue experiments were used to validate the downstream targets of miR-296-5p. Xenograft nude mouse models were established to observe tumor growth and metastasis. Immunohistochemical assays were conducted to study the relationships between miR-296-5p expression and Neuregulin-1 (NRG1)/EMT markers in human HCC samples and mice. RESULTS miR-296-5p was prominently downregulated in HCC tissues relative to adjacent normal liver tissues and associated with favorable prognosis. Overexpression of miR-296-5p inhibited EMT along with migration and invasion of HCC cells via suppressing NRG1/ERBB2/ERBB3/RAS/MAPK/Fra-2 signaling in vitro. More importantly, miR-296-5p disrupted intrahepatic and pulmonary metastasis in vivo. NRG1, as a direct target of miR-296-5p, mediates downstream biological responses. In HCC tissues from patients and mice, the levels of miR-296-5p and NRG1 also showed an inverse relationship. CONCLUSIONS miR-296-5p inhibited EMT-related metastasis of HCC through NRG1/ERBB2/ERBB3/RAS/MAPK/Fra-2 signaling.
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Zhang X, Zhang X, Liu X, Qi P, Wang H, Ma Z, Chai Y. MicroRNA-296, a suppressor non-coding RNA, downregulates SGLT2 expression in lung cancer. Int J Oncol 2018; 54:199-208. [PMID: 30365049 DOI: 10.3892/ijo.2018.4599] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Accepted: 08/28/2018] [Indexed: 11/05/2022] Open
Abstract
Non-small cell lung cancer (NSCLC) is one of the most common types of cancer worldwide and has the highest mortality rate in China. MicroRNAs (miRNAs or miRs) are involved in tumorigenesis and their important role in cancer is becoming increasingly apparent. The expression of miR‑296‑5p in particular has been shown to be significantly downregulated in lung cancer. Sodium-glucose co-transporter-2 [SGLT2, also known as solute carrier family 5 member 2 (SLC5A2)] is an oncogene that promotes tumorigenesis. In this study, we aimed to determine the role of miR‑296‑5p in lung cancer and whether this involves the targeting of SGLT2. For this purpose, we examined miR‑296‑5p and SGLT2 expression in human lung cancer samples and cell lines by RT-qPCR and western blot analysis. In addition, the data analysis website TCGA was used for survival analysis with respect to SGLT2 expression. The effects of miR‑296‑5p were also examined on cell proliferation and cell cycle progression using respective assays. The results demonstrate that miR‑296‑5p is significantly downregulated in NSCLC tissues. Additionally, it is demonstrated that SGLT2 is directly targeted by miR‑296‑5p. Furthermore, our data reveal that the knockdown of SGLT2 using siRNA inhibits cell proliferation and impedes cell cycle progression. Collectively, data suggest that miR‑296‑5p not only inhibits NSCLC by downregulating SGLT2 expression, but also acts as a novel regulator of aberrant lung cancer cells to limit lung cancer progression.
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Affiliation(s)
- Xiaotian Zhang
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, P.R. China
| | - Xinju Zhang
- Laboratory for Noncoding RNA and Cancer, School of Life Sciences, Shanghai University, Shanghai 200444, P.R. China
| | - Xiaomin Liu
- Laboratory for Noncoding RNA and Cancer, School of Life Sciences, Shanghai University, Shanghai 200444, P.R. China
| | - Pengfei Qi
- Laboratory for Noncoding RNA and Cancer, School of Life Sciences, Shanghai University, Shanghai 200444, P.R. China
| | - Huimin Wang
- Laboratory for Noncoding RNA and Cancer, School of Life Sciences, Shanghai University, Shanghai 200444, P.R. China
| | - Zhongliang Ma
- Laboratory for Noncoding RNA and Cancer, School of Life Sciences, Shanghai University, Shanghai 200444, P.R. China
| | - Yimin Chai
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, P.R. China
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Dang SC, Fan YY, Cui L, Chen JX, Qu JG, Gu M. PLK1 as a potential prognostic marker of gastric cancer through MEK-ERK pathway on PDTX models. Onco Targets Ther 2018; 11:6239-6247. [PMID: 30288059 PMCID: PMC6163028 DOI: 10.2147/ott.s169880] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Background PLK1 has been identified as having a great effect on cell division and maintaining genomic stability in mitosis, spindle assembly, and DNA damage response by current studies. Materials and methods We assessed PLK1 expression in cervical cancer tissues and cells. We have also evaluated the effects of PLK1 on gastric cancer cell proliferation, migration, and apoptosis both in vitro and in vivo. Results Our results show that PLK1 is overexpressed in gastric cancer tissues and cells. Inhibition of PLK1 contributes cell cycle G2-phase arrest and inhibits the proliferation, migration, and apoptosis of gastric cancer (GC) cells, whereas its overexpression promotes proliferation, migration, and apoptosis in these cells. Moreover, PLK1 inhibition reduces expression of pMEK and pERK. More importantly, in vivo by analyzing tumorigenesis in patient-derived tumor xenograft (PDTX) models, the inhibition of PLK1 activity by BI6727 significantly decreased the volume and weight of the tumors compared with control group (P<0.01). Conclusion Our results found that PLK1 has a significant impact on the survival of GC cells; it may become a prognostic judge, a potential therapeutic target, and a preventative biomarker of GC.
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Affiliation(s)
- Sheng-Chun Dang
- Department of General Surgery, The Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu Province, People's Republic of China
| | - Yi-Yi Fan
- Department of General Surgery, The Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu Province, People's Republic of China
| | - Lei Cui
- Department of General Surgery, The Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu Province, People's Republic of China
| | - Ji-Xiang Chen
- Department of General Surgery, The Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu Province, People's Republic of China
| | - Jian-Guo Qu
- Department of General Surgery, The Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu Province, People's Republic of China
| | - Min Gu
- Zhenjiang Integrative Medicine Hospital, Zhenjiang, Jiangsu Province, People's Republic of China,
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Yan W, Yu H, Li W, Li F, Wang S, Yu N, Jiang Q. Plk1 promotes the migration of human lung adenocarcinoma epithelial cells via STAT3 signaling. Oncol Lett 2018; 16:6801-6807. [PMID: 30405824 DOI: 10.3892/ol.2018.9437] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2015] [Accepted: 01/10/2018] [Indexed: 12/13/2022] Open
Abstract
Polo-like kinase (Plk)1 contributes to the development of human cancer via multiple mechanisms, such as promoting the migration of cancer cells. However, the mechanistic basis for the regulation of cell migration by Plk1 remains unknown. To address this question, the present study investigated the effect of Plk1 inhibition on the migration of human lung adenocarcinoma epithelial A549 cells and the molecular factors involved. A549 cells were treated with the Plk1 inhibitor, BI2536, and cell migration was evaluated with the wound-healing assay. The expression of matrix metallopeptidase (MMP)2, vascular endothelial growth factor (VEGF)A, total and phosphorylated signal transducer and activator of transcription (STAT)3 was assessed by western blotting and reverse transcription-polymerase chain reaction following Plk1 knockdown and/or STAT3 overexpression. The interaction between Plk1 and STAT3 was evaluated by co-immunoprecipitation. The levels of MMP2 and VEGFA were decreased by treatment with Plk1 inhibitor. The phosphorylation of STAT3, which acts upstream of MMP2 and VEGFA, was also decreased by Plk1 knockdown, an effect that was abrogated by STAT3 overexpression. In addition, Plk1 was detected to bind with STAT3 either directly or as part of a complex by co-immunoprecipitation experiments. These results indicated that Plk1 may promote the migration of A549 cells via regulation of STAT3 signaling.
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Affiliation(s)
- Weijuan Yan
- Laboratory of Nuclear and Radiation Damage, The General Hospital of The Second Artillery Corps of Chinese PLA, Beijing 100088, P.R. China
| | - Huijie Yu
- Laboratory of Nuclear and Radiation Damage, The General Hospital of The Second Artillery Corps of Chinese PLA, Beijing 100088, P.R. China
| | - Wei Li
- Laboratory of Nuclear and Radiation Damage, The General Hospital of The Second Artillery Corps of Chinese PLA, Beijing 100088, P.R. China
| | - Fengsheng Li
- Laboratory of Nuclear and Radiation Damage, The General Hospital of The Second Artillery Corps of Chinese PLA, Beijing 100088, P.R. China
| | - Sinian Wang
- Laboratory of Nuclear and Radiation Damage, The General Hospital of The Second Artillery Corps of Chinese PLA, Beijing 100088, P.R. China
| | - Nan Yu
- Laboratory of Nuclear and Radiation Damage, The General Hospital of The Second Artillery Corps of Chinese PLA, Beijing 100088, P.R. China
| | - Qisheng Jiang
- Laboratory of Nuclear and Radiation Damage, The General Hospital of The Second Artillery Corps of Chinese PLA, Beijing 100088, P.R. China
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Chen B, Zhu A, Tian L, Xin Y, Liu X, Peng Y, Zhang J, Miao Y, Wei J. miR‑23a suppresses pancreatic cancer cell progression by inhibiting PLK‑1 expression. Mol Med Rep 2018; 18:105-112. [PMID: 29749476 PMCID: PMC6059658 DOI: 10.3892/mmr.2018.8941] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2017] [Accepted: 04/17/2018] [Indexed: 11/06/2022] Open
Abstract
The present study aimed to explore the effects and underlying mechanisms of microRNA (miR)‑23a on pancreatic cancer (PC) cells progression. Reverse transcription‑quantitative polymerase chain reaction and western blot analysis were used to detect the mRNA and protein miR‑23a and PLK‑1 level. Cell viability, cell cycle, migration and invasion assasy, and in vivo tumorigenicity assay were used to investigate the effects of miR‑204. Further luciferase reporter assay was used to explore the mechanisms contributing to miR‑204 effects. It was observed that miR‑23a expression was upregulated and negatively associated with polo‑like kinase‑1 (PLK‑1) expression in human PC tissues. PLK‑1 was a direct target of miR‑23a in PC cells. Functional analysis demonstrated that miR‑23a overexpression suppressed cell proliferation, inhibited cell migration and invasion and promoted cell apoptosis in vitro. When PC cells were transfected with has‑miR‑23a PLK‑1 was downregulated and its downstream molecules were deregulated, including decreased expression of B‑cell lymphoma‑2, cyclin B1 and vimentin, and increased expression of Bax and E‑cadherin. The inhibitory effect of miR‑23a on PC cell progression was observed in vivo tumor xenografts. The results of the study suggest that miR‑23a inhibits PC cell progression by directly targeting PLK‑1‑associated signaling and promoting miR‑23a expression may be a potential method for treating patients with PC.
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Affiliation(s)
- Bin Chen
- Hepatopancreatobiliary Surgery Department, The Affiliated Hangzhou Hospital of Nanjing Medical University, Hangzhou, Zhejiang 310006, P.R. China
- Hepatopancreatobiliary Surgery Department, The Affiliated Hospital of Hangzhou Normal University, Hangzhou, Zhejiang 311121, P.R. China
| | - Akao Zhu
- Hepatopancreatobiliary Surgery Department, The Affiliated Hangzhou Hospital of Nanjing Medical University, Hangzhou, Zhejiang 310006, P.R. China
| | - Lei Tian
- The Pancreas Center, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Ying Xin
- Thyroid Breast Surgery Department, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang 310014, P.R. China
| | - Xinchun Liu
- The Pancreas Center, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Yunpeng Peng
- The Pancreas Center, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Jingjing Zhang
- The Pancreas Center, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Yi Miao
- The Pancreas Center, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Jishu Wei
- The Pancreas Center, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
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44
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Liu B, Chen Y, Yang J. LncRNAs are altered in lung squamous cell carcinoma and lung adenocarcinoma. Oncotarget 2018; 8:24275-24291. [PMID: 27903974 PMCID: PMC5421846 DOI: 10.18632/oncotarget.13651] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Accepted: 11/14/2016] [Indexed: 01/05/2023] Open
Abstract
Long non-coding RNAs (lncRNAs) have been implicated in pathogenesis of various cancers, including lung squamous cell carcinoma (LUSC) and lung adenocarcinoma (LUAD). We used cBioPortal to analyze lncRNA alteration frequencies and their ability to predict overall survival (OS) using 504 LUSC and 522 LUAD samples from The Cancer Genome Atlas (TCGA) database. In LUSC, 624 lncRNAs had alteration rates > 1% and 64 > 10%. In LUAD 625 lncRNAs had alteration rates > 1% and 36 > 10%. Among those, 620 lncRNAs had alteration frequencies > 1% in both LUSC and LUAD, while 22 were LUSC-specific and 23 were LUAD-specific. Twenty lncRNAs had alteration frequencies > 10% in both LUSC and LUAD, while 44 were LUSC-specific and 16 were LUAD specific. Genome ontology and pathway analyses produced similar results for LUSC and LUAD. Two lncRNAs (IGF2BP2-AS1 and DGCR5) correlated with better OS in LUSC, and three (MIR31HG, CDKN2A-AS1 and LINC01600) predicted poor OS in LUAD. Chip-seq and luciferase reporter assays identified potential IGF2BP2-AS1, DGCR5 and LINC01600 promoters and enhancers. This study presented lncRNA landscapes and revealed differentially expressed, highly altered lncRNAs in LUSC and LUAD. LncRNAs that act as oncogenes and lncRNA-regulating transcription factors provide novel targets for anti-lung cancer therapeutics.
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Affiliation(s)
- Bing Liu
- Department of Respiratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Yifei Chen
- Department of Respiratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Jiong Yang
- Department of Respiratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
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Gan XN, Gan TQ, He RQ, Luo J, Tang RX, Wang HL, Zhou H, Qing H, Ma J, Hu XH, Chen G. Clinical significance of high expression of miR-452-5p in lung squamous cell carcinoma. Oncol Lett 2018; 15:6418-6430. [PMID: 29616113 PMCID: PMC5876433 DOI: 10.3892/ol.2018.8088] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Accepted: 01/26/2018] [Indexed: 12/26/2022] Open
Abstract
The role of microRNA (miRNA)-452-5p in lung squamous cell carcinoma (LUSC) remains unclear. Therefore, the present systematic study was performed to investigate the clinical significance and the rudimentary mechanism of the function of miR-452-5p in LUSC. The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO) databases were utilized to confirm the expression level and clinical value of miR-452-5p in LUSC. Using online databases and bioinformatic software, gene ontology (GO), pathway and protein-protein interaction (PPI) analyses of miR-452-5p target genes were performed to examine the molecular mechanism of miR-452-5p. The association between the expression of miR-452-5p and that of its hub genes was verified using TCGA. Based on TCGA data on 387 clinical specimens, the expression of miR-452-5p in LUSC was significantly increased compared with adjacent lung tissues (7.1525±1.39063 vs. 6.0885±0.35298; P<0.001). The expression levels of miR-452-5p were significantly correlated with age (P=0.001) and tumor-node metastasis stage (P=0.028). Furthermore, the increased expression of miR-452-5p in LUSC compared with non-cancerous tissue [standard mean deviation (SMD), 0.372; 95% confidence interval (CI), 0.020–0.724; z=2.07; P=0.038] was validated by a meta-analysis of 720 clinical samples. The GO and pathway analyses revealed that miR-452-5p target genes were mainly enriched in the ‘regulation of transcription’, ‘nucleoplasm’, ‘protein binding’ and ‘cell cycle’ pathways. A total of 10 hub genes were identified by PPI analysis, and 5 hub genes (SMAD4, SMAD2, CDKN1B, YWHAE and YWHAB) were significantly enriched in the ‘cell cycle’ pathway. The expression of CDKN1B was negatively correlated with miR-452-5p (P=0.003). It was concluded that miR-452-5p may serve an essential role in the occurrence and progression of LUSC by targeting CDKN1B, which is involved in the cell cycle.
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Affiliation(s)
- Xiao-Ning Gan
- Department of Pathology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Ting-Qing Gan
- Department of Medical Oncology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Rong-Quan He
- Department of Medical Oncology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Jie Luo
- Department of Medical Oncology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Rui-Xue Tang
- Department of Pathology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Han-Lin Wang
- Department of Pathology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Hong Zhou
- Department of Pathology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Hui Qing
- 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
| | - Xiao-Hua Hu
- Department of Medical Oncology, 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
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Deng X, Liu Z, Liu X, Fu Q, Deng T, Lu J, Liu Y, Liang Z, Jiang Q, Cheng C, Fang W. miR-296-3p Negatively Regulated by Nicotine Stimulates Cytoplasmic Translocation of c-Myc via MK2 to Suppress Chemotherapy Resistance. Mol Ther 2018. [PMID: 29525743 DOI: 10.1016/j.ymthe.2018.01.023] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
This study aimed to identify mechanisms by which microRNA 296-3p (miR-296-3p) functions as a tumor suppressor to restrain nasopharyngeal carcinoma (NPC) cell growth, metastasis, and chemoresistance. Mechanistic studies revealed that miR-296-3p negatively regulated by nicotine directly targets the oncogenic protein mitogen-activated protein kinase-activated protein kinase-2 (Mapkapk2) (MK2). Suppression of MK2 downregulated Ras/Braf/Erk/Mek/c-Myc and phosphoinositide-3-kinase (PI3K)/Akt/c-Myc signaling and promoted cytoplasmic translocation of c-Myc, which activated miR-296-3p expression by a feedback loop. This ultimately inhibited cell cycle progression, epithelial-to-mesenchymal transition (EMT), and chemoresistance of NPC. In addition, nicotine as a key component of tobacco was observed to suppress miR-296-3p and thus elevate MK2 expression by inducing PI3K/Akt/c-Myc signaling. In clinical samples, reduced miR-296-3p as an unfavorable factor was inversely correlated with MK2 and c-Myc expression. These results reveal a novel mechanism by which miR-296-3p negatively regulated by nicotine directly targets MK2-induced Ras/Braf/Erk/Mek/c-Myc or PI3K/AKT/c-Myc signaling to stimulate its own expression and suppress NPC cell proliferation and metastasis. miR-296-3p may thus serve as a therapeutic target to reverse chemotherapy resistance of NPC.
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Affiliation(s)
- Xiaojie Deng
- Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510315, China
| | - Zhen Liu
- Key Laboratory of Protein Modification and Degradation, School of Basic Medical Sciences, Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou 511436, China
| | - Xiong Liu
- Department of Otolaryngology-Head and Neck Surgery, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Qiaofen Fu
- Department of Cancer Biotherapy Center, Third Affiliated Hospital of Kunming Medical University (Tumor Hospital of Yunnan Province), Kunming 650118, Yunnan, China
| | - Tongyuan Deng
- Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510315, China
| | - Juan Lu
- Department of Otolaryngology-Head and Neck Surgery, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Yiyi Liu
- Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510315, China
| | - Zixi Liang
- Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510315, China
| | - Qingping Jiang
- Department of Pathology, Third Affiliated Hospital, Guangzhou Medical University, Guangzhou 510150, China
| | - Chao Cheng
- Pediatric Otolaryngology Department, Shenzhen Hospital of Southern Medical University, Shenzhen, China
| | - Weiyi Fang
- Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510315, China.
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47
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Lv L, Wang X. MicroRNA-296 Targets Specificity Protein 1 to Suppress Cell Proliferation and Invasion in Cervical Cancer. Oncol Res 2017; 26:775-783. [PMID: 29241478 PMCID: PMC7844729 DOI: 10.3727/096504017x15132494420120] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Cervical cancer is the third most commonly diagnosed malignancy and the fourth leading cause of cancer-related deaths in women worldwide. MicroRNA-296 (miR-296) is aberrantly expressed in a variety of human cancer types. However, the expression levels, biological roles, and underlying molecular mechanisms of miR-296 in cervical cancer remain unclear. This study aimed to detect miR-296 expression in cervical cancer and evaluate its roles and underlying mechanisms in cervical cancer. This study demonstrated that miR-296 was significantly downregulated in cervical cancer tissues and cell lines. Restoring the expression of miR-296 inhibited the proliferation and invasion of cervical cancer cells. Moreover, miR-296 directly targeted the 3'-untranslated regions of specificity protein 1 (SP1) and decreased its endogenous expression at both the mRNA and protein levels. Similar to induced miR-296 expression, SP1 knockdown suppressed the proliferation and invasion of cervical cancer cells. Besides, resumption expression of SP1 rescued the tumor-suppressing roles of miR-296 in cervical cancer. These results indicated that miR-296 may act as a tumor suppressor in cervical cancer by directly targeting SP1. Therefore, SP1 may be developed as a therapeutic target for the treatment of patients with this malignancy.
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Affiliation(s)
- Lili Lv
- Department of Oncology and Hematology, The Second Hospital of Jilin University, Changchun, Jilin, P.R. China
| | - Xiaodong Wang
- Department of Digestive Endoscopy, The Second Hospital of Jilin University, Changchun, Jilin, P.R. China
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48
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Li DY, Chen WJ, Luo L, Wang YK, Shang J, Zhang Y, Chen G, Li SK. Prospective lncRNA-miRNA-mRNA regulatory network of long non-coding RNA LINC00968 in non-small cell lung cancer A549 cells: A miRNA microarray and bioinformatics investigation. Int J Mol Med 2017; 40:1895-1906. [PMID: 29039552 DOI: 10.3892/ijmm.2017.3187] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Accepted: 10/05/2017] [Indexed: 11/05/2022] Open
Abstract
Accumulating evidence suggests that the dysregulation of long non-coding RNAs (lncRNAs) serves vital roles in the incidence and progression of lung cancer. However, the molecular mechanisms of LINC00968, a recently identified lncRNA, remain unknown. The objective of present study was to investigate the role of a prospective lncRNA-miRNA‑mRNA network regulated by LINC00968 in non-small cell lung cancer cells. Following the transfection of lentiviruses carrying LINC00968 into A549 cells, the microRNA (miRNA) expression profile of the cells in response to the overexpression of LINC00968 was detected using an miRNA microarray. Five differentially expressed miRNAs (DEMs) with LINC00968 overexpression were obtained, including miR-9-3p, miR‑22-5p, miR-668-3p, miR‑3675-3p and miR-4536-3p. Five target prediction algorithms and three target validation algorithms were used to obtain 1,888 prospective target genes of the five DEMs. The result of Gene Ontology analysis suggested that these five DEMs were involved in complex cellular pathways, which included intracellular transport, organelle lumen and nucleotide binding. Furthermore, analysis of Kyoto Encyclopedia of Genes and Genomes pathways indicated that the five DEMs were important regulators in the adherens junction and focal adhesion. An lncRNA-miRNA-mRNA regulatory network and a protein-protein interaction network were then constructed. Eventually, a prospective lncRNA‑miRNA-mRNA regulatory network of LINC00968, three miRNAs (miR-9, miR-22 and miR-4536) and two genes (polo-like kinase 1 and exportin-1) was obtained following validation in the Cancer Genome Atlas database. These results may provide novel insights to support future research into lncRNA in lung cancer.
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Affiliation(s)
- Dong-Yao Li
- Department of Thoracic and Cardiovascular Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Wen-Jie Chen
- Department of Thoracic and Cardiovascular Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Lei Luo
- Department of Thoracic and Cardiovascular Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Yong-Kun Wang
- Department of Thoracic and Cardiovascular Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Jun Shang
- Department of Thoracic and Cardiovascular Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Yu Zhang
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Gang Chen
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Shi-Kang Li
- Department of Thoracic and Cardiovascular Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
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Dinami R, Buemi V, Sestito R, Zappone A, Ciani Y, Mano M, Petti E, Sacconi A, Blandino G, Giacca M, Piazza S, Benetti R, Schoeftner S. Epigenetic silencing of miR-296 and miR-512 ensures hTERT dependent apoptosis protection and telomere maintenance in basal-type breast cancer cells. Oncotarget 2017; 8:95674-95691. [PMID: 29221158 PMCID: PMC5707052 DOI: 10.18632/oncotarget.21180] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Accepted: 08/27/2017] [Indexed: 12/31/2022] Open
Abstract
The catalytic subunit of the telomerase complex, hTERT, ensures unlimited proliferative potential of cancer cells by maintaining telomere function and protecting from apoptosis. Using a miRNA screening approach we identified miR-296-5p and miR-512-5p as miRNAs that target hTERT in breast cancer cells. Ectopic miR-296-5p and miR-512-5p reduce telomerase activity, drive telomere shortening and cause proliferation defects by enhancing senescence and apoptosis in breast cancer cells. In line with the relevance of hTERT expression for human cancer we found that miR-296-5p and miR-512-5p expression is reduced in human breast cancer. Accordingly, high expression of miR-296-5p and miR-512-5p target genes including hTERT is linked with significantly reduced distant metastasis free survival and relapse free survival of basal type breast cancer patients. This suggests relevance of the identified miRNAs in basal type breast cancer. Epigenetic silencing of miR-296 and miR-512 encoding genes is responsible for low levels of miR-296-5p and miR-512-5p expression in basal type breast cancer cells. Disrupting gene silencing results in a dramatic upregulation of miR-296-5p and miR-512-5p levels leading to reduced hTERT expression and increased sensitivity to the induction of apoptosis. Altogether, our data suggest that epigenetic regulatory circuits in basal type breast cancer may contribute to high hTERT levels by silencing miR-296-5p and miR-512-5p expression, thereby contributing to the aggressiveness of basal type breast cancer.
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Affiliation(s)
- Roberto Dinami
- Laboratorio Nazionale Consorzio Interuniversitario Biotecnologie (LNCIB), Genomic Stability Unit, Trieste 34149, Italy.,Italian National Cancer Institute, Regina Elena, Rome 00144, Italy
| | - Valentina Buemi
- Laboratorio Nazionale Consorzio Interuniversitario Biotecnologie (LNCIB), Genomic Stability Unit, Trieste 34149, Italy.,Department of Life Sciences, Università degli Studi di Trieste, Trieste 34127, Italy
| | - Rosanna Sestito
- Italian National Cancer Institute, Regina Elena, Rome 00144, Italy
| | - Antonina Zappone
- Laboratorio Nazionale Consorzio Interuniversitario Biotecnologie (LNCIB), Genomic Stability Unit, Trieste 34149, Italy.,Department of Life Sciences, Università degli Studi di Trieste, Trieste 34127, Italy
| | - Yari Ciani
- Laboratorio Nazionale Consorzio Interuniversitario Biotecnologie (LNCIB), Bioinformatics and Functional Genomics Unit (BFGU), Trieste 34149, Italy
| | - Miguel Mano
- International Centre for Genetic Engineering and Biotechnology (ICGEB), Molecular Medicine Laboratory, Trieste 34149, Italy
| | - Eleonora Petti
- Laboratorio Nazionale Consorzio Interuniversitario Biotecnologie (LNCIB), Genomic Stability Unit, Trieste 34149, Italy.,Italian National Cancer Institute, Regina Elena, Rome 00144, Italy.,Department of Life Sciences, Università degli Studi di Trieste, Trieste 34127, Italy
| | - Andrea Sacconi
- Italian National Cancer Institute, Regina Elena, Translational Oncogenomics Group, Rome 00144, Italy
| | - Giovanni Blandino
- Italian National Cancer Institute, Regina Elena, Translational Oncogenomics Group, Rome 00144, Italy
| | - Mauro Giacca
- International Centre for Genetic Engineering and Biotechnology (ICGEB), Molecular Medicine Laboratory, Trieste 34149, Italy
| | - Silvano Piazza
- Laboratorio Nazionale Consorzio Interuniversitario Biotecnologie (LNCIB), Bioinformatics and Functional Genomics Unit (BFGU), Trieste 34149, Italy
| | - Roberta Benetti
- Laboratorio Nazionale Consorzio Interuniversitario Biotecnologie (LNCIB), Cancer Epigenetics Unit, Trieste 34149, Italy.,Department of Medical and Biological Sciences, Università degli Studi di Udine, Udine 33100, Italy
| | - Stefan Schoeftner
- Laboratorio Nazionale Consorzio Interuniversitario Biotecnologie (LNCIB), Genomic Stability Unit, Trieste 34149, Italy.,Italian National Cancer Institute, Regina Elena, Rome 00144, Italy.,Department of Life Sciences, Università degli Studi di Trieste, Trieste 34127, Italy
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50
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Leong KW, Cheng CW, Wong CM, Ng IOL, Kwong YL, Tse E. miR-874-3p is down-regulated in hepatocellular carcinoma and negatively regulates PIN1 expression. Oncotarget 2017; 8:11343-11355. [PMID: 28076852 PMCID: PMC5355269 DOI: 10.18632/oncotarget.14526] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2016] [Accepted: 12/27/2016] [Indexed: 12/18/2022] Open
Abstract
PIN1 is a peptidyl-prolyl cis/trans isomerase (PPIase) that regulates multiple signaling pathways to control cell fate and is found to be over-expressed in cancers, including hepatocellular carcinoma (HCC). However, the regulation of PIN1 in HCC remains poorly defined. Micro-RNAs (miRNAs) have been reported to play a pivotal role in oncogenesis by targeting the 3'-untranslated region (UTR) of mRNAs encoded by oncogenes and tumour suppressor genes, thereby suppressing the levels of both oncoproteins and tumour suppressors. In this report, we aimed to identify miRNAs that suppress PIN1 expression and to determine their role in HCC. By searching the TargetScan database, miR-874-3p was identified as a potential negative regulator of PIN1. miR-874-3p was demonstrated to bind the 3'UTR of PIN1 mRNA directly to suppress expression of PIN1. Functionally, over-expression of miR-874-3p in HCC cell line PLC/PRF/5 inhibited cell growth and colony formation in-vitro, and promoted cellular apoptosis. Furthermore, these tumour suppressive functions conferred by miR-874-3p were abrogated by over-expression of PIN1. Similarly, expression of miR-874-3p in PLC/PRF/5 with PIN1 knocked-down did not further suppress cellular proliferation, suggesting that PIN1 was a major target of miR-874-3p. More importantly, miR-874-3p was found to be down-regulated in HCC tissues and its expression was negatively correlated with that of PIN1. Down-regulation of miR-874-3p was also associated with poorly differentiated tumour cells, more advanced staging, and inferior patient outcomes. In addition, over-expression of miR-874-3p suppressed tumour growth in vivo. Taken together, our data suggested that miR-874-3p plays a tumour suppressive role in HCC through down-regulation of PIN1.
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Affiliation(s)
- Ka-Wai Leong
- Department of Medicine, The University of Hong Kong, Hong Kong
| | - Chi-Wai Cheng
- Department of Medicine, The University of Hong Kong, Hong Kong
| | - Chun-Ming Wong
- Department of Pathology and State Key Laboratory for Liver Research, The University of Hong Kong, Hong Kong
| | - Irene Oi-Lin Ng
- Department of Pathology and State Key Laboratory for Liver Research, The University of Hong Kong, Hong Kong
| | - Yok-Lam Kwong
- Department of Medicine, The University of Hong Kong, Hong Kong
| | - Eric Tse
- Department of Medicine, The University of Hong Kong, Hong Kong
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