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Tamkeen N, Farooqui A, Alam A, Najma, Tazyeen S, Ahmad MM, Ahmad N, Ishrat R. Identification of common candidate genes and pathways for Spina Bifida and Wilm's Tumor using an integrative bioinformatics analysis. J Biomol Struct Dyn 2024; 42:977-992. [PMID: 37051780 DOI: 10.1080/07391102.2023.2199080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Accepted: 03/23/2023] [Indexed: 04/14/2023]
Abstract
Spina Bifida (SB) and Wilm's Tumor (WT) are conditions, both associated with children. Several studies have shown that WT later develops in SB patients, which led us to elucidate common key genes and linked pathways of both conditions, aimed at their concurrent therapeutic management. For this, integrated bioinformatics analysis was employed. A comprehensive manual curation of genes identified 133 and 139 genes associated with SB and WT, respectively, which were used to construct a single protein-protein interaction (PPI) network. Topological parameters analysis of the network showed its scale-free and hierarchical nature. Centrality-based analysis of the network identified 116 hubs, of which, 6 were called the key genes attributed to being common between SB and WT besides being the hubs. Gene enrichment analysis of the 5 most essential modules, identified important biological processes and pathways possibly linking SB to WT. Additionally, miRNA-key gene-transcription factor (TF) regulatory network elucidated a few important miRNAs and TFs that regulate our key genes. In closing, we put forward TP53, DICER1, NCAM1, PAX3, PTCH1, MTHFR; hsa-mir-107, hsa-mir-137, hsa-mir-122, hsa-let-7d; and YY1, SOX4, MYC, STAT3; key genes, miRNAs and TFs, respectively, as the key regulators. Further, MD simulation studies of wild and Glu429Ala forms of MTHFR proteins showed that there is a slight change in MTHFR protein structure due to Glu429Ala polymorphism. We anticipate that the interplay of these three entities will be an interesting area of research to explore the regulatory mechanism of SB and WT and may serve as candidate target molecules to diagnose, monitor, and treat SB and WT, parallelly.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Naaila Tamkeen
- Department of Biosciences, Jamia Millia Islamia, New Delhi, India
- Centre for Interdisciplinary Research in Basic Science, Jamia Millia Islamia, New Delhi, India
| | - Anam Farooqui
- Centre for Interdisciplinary Research in Basic Science, Jamia Millia Islamia, New Delhi, India
| | - Aftab Alam
- Centre for Interdisciplinary Research in Basic Science, Jamia Millia Islamia, New Delhi, India
| | - Najma
- Centre for Interdisciplinary Research in Basic Science, Jamia Millia Islamia, New Delhi, India
| | - Safia Tazyeen
- Centre for Interdisciplinary Research in Basic Science, Jamia Millia Islamia, New Delhi, India
| | - Mohd Murshad Ahmad
- Centre for Interdisciplinary Research in Basic Science, Jamia Millia Islamia, New Delhi, India
| | - Nadeem Ahmad
- Department of Biosciences, Jamia Millia Islamia, New Delhi, India
| | - Romana Ishrat
- Centre for Interdisciplinary Research in Basic Science, Jamia Millia Islamia, New Delhi, India
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Lucarini V, Nardozi D, Angiolini V, Benvenuto M, Focaccetti C, Carrano R, Besharat ZM, Bei R, Masuelli L. Tumor Microenvironment Remodeling in Gastrointestinal Cancer: Role of miRNAs as Biomarkers of Tumor Invasion. Biomedicines 2023; 11:1761. [PMID: 37371856 DOI: 10.3390/biomedicines11061761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 06/13/2023] [Accepted: 06/15/2023] [Indexed: 06/29/2023] Open
Abstract
Gastrointestinal (GI) cancers are the most frequent neoplasm, responsible for half of all cancer-related deaths. Metastasis is the leading cause of death from GI cancer; thus, studying the processes that regulate cancer cell migration is of paramount importance for the development of new therapeutic strategies. In this review, we summarize the mechanisms adopted by cancer cells to promote cell migration and the subsequent metastasis formation by highlighting the key role that tumor microenvironment components play in deregulating cellular pathways involved in these processes. We, therefore, provide an overview of the role of different microRNAs in promoting tumor metastasis and their role as potential biomarkers for the prognosis, monitoring, and diagnosis of GI cancer patients. Finally, we relate the possible use of nutraceuticals as a new strategy for targeting numerous microRNAs and different pathways involved in GI tumor invasiveness.
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Affiliation(s)
- Valeria Lucarini
- Department of Experimental Medicine, University of Rome "Sapienza", Viale Regina Elena 324, 00161 Rome, Italy
| | - Daniela Nardozi
- Department of Clinical Sciences and Translational Medicine, University of Rome "Tor Vergata", Via Montpellier 1, 00133 Rome, Italy
| | - Valentina Angiolini
- Department of Experimental Medicine, University of Rome "Sapienza", Viale Regina Elena 324, 00161 Rome, Italy
| | - Monica Benvenuto
- Department of Clinical Sciences and Translational Medicine, University of Rome "Tor Vergata", Via Montpellier 1, 00133 Rome, Italy
- Departmental Faculty of Medicine and Surgery, Saint Camillus International University of Health and Medical Sciences, via di Sant'Alessandro 8, 00131 Rome, Italy
| | - Chiara Focaccetti
- Department of Clinical Sciences and Translational Medicine, University of Rome "Tor Vergata", Via Montpellier 1, 00133 Rome, Italy
| | - Raffaele Carrano
- Department of Clinical Sciences and Translational Medicine, University of Rome "Tor Vergata", Via Montpellier 1, 00133 Rome, Italy
| | - Zein Mersini Besharat
- Department of Experimental Medicine, University of Rome "Sapienza", Viale Regina Elena 324, 00161 Rome, Italy
| | - Roberto Bei
- Department of Clinical Sciences and Translational Medicine, University of Rome "Tor Vergata", Via Montpellier 1, 00133 Rome, Italy
| | - Laura Masuelli
- Department of Experimental Medicine, University of Rome "Sapienza", Viale Regina Elena 324, 00161 Rome, Italy
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Liu Y, Cao Y, Yang X, Chen H, Yang H, Liu Y, Gu W. High expression of miR-107 and miR-17 predicts poor prognosis and guides treatment selection in acute myeloid leukemia. Transl Cancer Res 2023; 12:913-927. [PMID: 37180663 PMCID: PMC10174997 DOI: 10.21037/tcr-22-2484] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 02/19/2023] [Indexed: 03/21/2023]
Abstract
Background The prognostic significance of miR-107 and miR-17 in patients with acute myeloid leukemia (AML) remains unclear. Methods A total of 173 patients with de novo AML from the Cancer Genome Atlas database were enrolled in this study and further divided into a chemotherapy group (98 cases) and an allogeneic hematopoietic stem cell transplantation (allo-HSCT) group (75 cases) according to their therapy regimen. Results In the chemotherapy cohort, high miR-107 or miR-17 expression was associated with poorer overall survival (OS) and event-free survival (EFS). On the other hand, there were no significant differences in OS and EFS between the high- and low-expression subgroups in the allo-HSCT group. Next, we stratified the total number of patients with AML into high- and low-expression groups according to the median expression levels of miR-107 or miR-17. In the high miR-107 or miR-17 expression group, patients treated with allo-HSCT had longer OS than those treated with chemotherapy. In the low miR-107 or miR-17 expression group, no significant differences in OS and EFS were observed between the two therapy subgroups. When patients were further clustered into three groups (both low miR-107 and low miR-17, either high miR-107 or high miR-17, and both high miR-107 and high miR-17), patients with both high miR-107 and high miR-17 expression had the worst OS and EFS of the entire group and of the chemotherapy group. On the other hand, there were no significant differences in OS and EFS among the three subgroups in the allo-HSCT group. Cox regression confirmed the concurrence of high expression of miR-107 and miR-17 might act as an independent prognostic factor for EFS and OS in the entire group and the chemotherapy group. Bioinformatics analysis showed differentially expressed genes (DEGs) associated with miR-107 and miR-17 expression were mainly enriched in multiple metabolic processes. Conclusions The combination of miR-107 and miR-17 provides prognostic significance for patients with AML and should be considered in the clinical selection of the optimal treatment regimen when deciding between chemotherapy and allo-HSCT.
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Affiliation(s)
- Yue Liu
- Department of Hematology, The First People’s Hospital of Changzhou and The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - Yang Cao
- Department of Hematology, The First People’s Hospital of Changzhou and The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - Xiaojun Yang
- Department of Blood Transfusion, The First People’s Hospital of Changzhou and The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - Huijuan Chen
- Department of Hematology, The First People’s Hospital of Changzhou and The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - Haonan Yang
- Department of Hematology, The First People’s Hospital of Changzhou and The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - Yan Liu
- Department of Hematology, The First People’s Hospital of Changzhou and The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - Weiying Gu
- Department of Hematology, The First People’s Hospital of Changzhou and The Third Affiliated Hospital of Soochow University, Changzhou, China
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Chen J, Han G, Xu A, Akutsu T, Cai H. Identifying miRNA-Gene Common and Specific Regulatory Modules for Cancer Subtyping by a High-Order Graph Matching Model. IEEE/ACM TRANSACTIONS ON COMPUTATIONAL BIOLOGY AND BIOINFORMATICS 2023; 20:421-431. [PMID: 35320104 DOI: 10.1109/tcbb.2022.3161635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Identifying regulatory modules between miRNAs and genes is crucial in cancer research. It promotes a comprehensive understanding of the molecular mechanisms of cancer. The genomic data collected from subjects usually relate to different cancer statuses, such as different TNM Classifications of Malignant Tumors (TNM) or histological subtypes. Simple integrated analyses generally identify the core of the tumorigenesis (common modules) but miss the subtype-specific regulatory mechanisms (specific modules). In contrast, separate analyses can only report the differences and ignore important common modules. Therefore, there is an urgent need to develop a novel method to jointly analyze miRNA and gene data of different cancer statuses to identify common and specific modules. To that end, we developed a High-Order Graph Matching model to identify Common and Specific modules (HOGMCS) between miRNA and gene data of different cancer statuses. We first demonstrate the superiority of HOGMCS through a comparison with four state-of-the-art techniques using a set of simulated data. Then, we apply HOGMCS on stomach adenocarcinoma data with four TNM stages and two histological types, and breast invasive carcinoma data with four PAM50 subtypes. The experimental results demonstrate that HOGMCS can accurately extract common and subtype-specific miRNA-gene regulatory modules, where many identified miRNA-gene interactions have been confirmed in several public databases.
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Diagnostic Value of Prostate-Specific Antigen Combined with Plasma miRNA-149 Expression in Patients with Prostate Cancer Based on Experimental Data and Bioinformatics. CONTRAST MEDIA & MOLECULAR IMAGING 2022; 2022:6094409. [PMID: 35935308 PMCID: PMC9337946 DOI: 10.1155/2022/6094409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 06/12/2022] [Accepted: 06/23/2022] [Indexed: 11/17/2022]
Abstract
Purpose The aim of this study is to explore the diagnostic value of prostate-specific antigen (PSA) combined with serum miRNA-149 expression in prostate cancer (PCa) by conducting experiments and bioinformatics analysis. Patients and Methods. 50 PCa patients were enrolled on the experimental group from January 2020 to December 2021. 56 patients with benign prostatic hyperplasia (BPH) were selected as the control group at the same time. Real-time fluorescent quantitative PCR was applied to investigate the miRNA-149 expression. PSA was detected by using a chemiluminescence meter using Abbott i4000. Applying bioinformatics analysis, we explored the expression of hsa-miR-149 in PCa in The Cancer Genome Atlas (TCGA) database. Kaplan–Meier analyses were used to evaluate the prognostic value, and the ROC curve was applied. Results The expression level of miRNA-149 in the PCa group was significantly higher than that in the BPH group (P < 0.05). The PSA level in the PCa group was also significantly higher than that in the BPH group (P < 0.05). TCGA data analysis revealed that PCa tissues had significantly increased hsa-miR-149 expression. The results of survival analysis showed that patients with high expression of hsa-miR-149 had better prognosis. Additionally, the pathological N stage of PCa correlates with the hsa-miR-149 expression level (P = 0.002). According to ROC curve analysis, the region under the curve was 0.653, 95% CI: 0.576–0.730. Conclusion High expression of serum miRNA-149 is associated with PCa patients. Although combined PSA did not improve the diagnostic efficacy, miRNA-149 has high specificity in the diagnosis of PCa. miRNA-149 might be a novel marker for early diagnosis and prognosis assessment for PCa.
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Tian W, Pang X, Luan F. Diagnosis value of miR-181, miR-652, and CA72-4 for gastric cancer. J Clin Lab Anal 2022; 36:e24411. [PMID: 35446997 PMCID: PMC9169223 DOI: 10.1002/jcla.24411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 03/24/2022] [Accepted: 03/25/2022] [Indexed: 12/01/2022] Open
Abstract
PURPOSE To find a useful disease marker for early diagnosis of gastric cancer, we tried to explore the expression of serum miR-181, miR-652, and carbohydrate antigen 72-4 (CA72-4). PATIENTS AND METHODS According to clinical pathologic stages, 112 patients with gastric cancer were divided into early gastric cancer group (n = 60) and advanced gastric cancer group (n = 52), stage I-II (n = 65), and stage III-IV (n = 47). Another 50 cases of gastric benign lesions and 40 healthy controls were also selected. Real-time quantitative PCR together with chemiluminescence were applied to detect expression levels. ROC curve was applied to judge their diagnostic efficiency. Pearson's correlation analysis was put into use to investigate the relevance of three indicators. RESULTS Compared with benign lesions group and control group, significantly higher expression levels were found in patients of gastric cancer (all p < 0.001). Similarly, compared with early gastric cancer group, significantly higher expression levels were found in advanced gastric cancer group (all p < 0.001). The same result was also found in stage III-IV (all p < 0.001). The best cutoff values were 0.93, 2.38, and 16.94 U/ml, respectively. The area under the curve (0.917, 95%CI: 0.856-0.975) of the three combined diagnosis of early gastric cancer was the largest, and its sensitivity and specificity were 92.5% and 86.8%. And miR-181 and miR-652 were positively correlated with CA72-4 (r = 0.772, p < 0.001, r = 0.853, p < 0.001). CONCLUSION Serum miR-181, miR-652, and CA72-4 are closely linked to the occurrence and development of gastric cancer. Combination of three indicators has diagnostic value for early gastric cancer.
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Affiliation(s)
- Wenyan Tian
- Department of GastroenterologyFirst Affiliated Hospital of Soochow UniversitySuzhouPeople’s Republic of China
| | - Xueqin Pang
- Department of GastroenterologyFirst Affiliated Hospital of Soochow UniversitySuzhouPeople’s Republic of China
| | - Fujuan Luan
- Department of GastroenterologyFirst Affiliated Hospital of Soochow UniversitySuzhouPeople’s Republic of China
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Mody D, Verma V, Rani V. Modulating host gene expression via gut microbiome-microRNA interplay to treat human diseases. Crit Rev Microbiol 2021; 47:596-611. [PMID: 34407384 DOI: 10.1080/1040841x.2021.1907739] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The human gastrointestinal (GI) tract hosts trillions of microbial inhabitants involved in maintaining intestinal homeostasis, dysbiosis of which provokes a motley of pathogenic and autoimmune disorders. While the mechanisms by which the microbiota modulates human health are manifold, their liberated metabolites from ingested dietary supplements play a crucial role by bidirectionally regulating the expression of micro-ribonucleic acids (miRNAs). miRNAs are small endogenous non-coding RNAs (ncRNAs) that have been confirmed to be involved in an interplay with microbiota to regulate host gene expression. This comprehensive review focuses on key principles of miRNAs, their regulation, and crosstalk with gut microbiota to influence host gene expression in various human disorders, by bringing together important recent findings centric around miRNA-microbiota interactions in diseases along various axis of the gut with other organs. We also attempt to lay emphasis on exploiting the avenues of gut-directed miRNA therapeutics using rudimentary dietary supplements to regulate abnormal host gene expression in diseases, opening doors to an accessible and economical therapeutic strategy.
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Affiliation(s)
- Deepansh Mody
- Transcriptome Laboratory, Centre for Emerging Diseases, Department of Biotechnology, Jaypee Institute of Information Technology, Noida, UP, India
| | - Vedika Verma
- Transcriptome Laboratory, Centre for Emerging Diseases, Department of Biotechnology, Jaypee Institute of Information Technology, Noida, UP, India
| | - Vibha Rani
- Transcriptome Laboratory, Centre for Emerging Diseases, Department of Biotechnology, Jaypee Institute of Information Technology, Noida, UP, India
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Zhao M, Wang Y, Jiang C, Wang Q, Mi J, Zhang Y, Zuo L, Geng Z, Song X, Ge S, Li J, Wen H, Wang J, Wang Z, Su F. miR-107 regulates the effect of MCM7 on the proliferation and apoptosis of colorectal cancer via the PAK2 pathway. Biochem Pharmacol 2021; 190:114610. [PMID: 34010598 DOI: 10.1016/j.bcp.2021.114610] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Revised: 05/11/2021] [Accepted: 05/14/2021] [Indexed: 12/01/2022]
Abstract
Microchromosome maintenance protein 7 (MCM7), a DNA replication permitting factor, plays an essential role in initiating DNA replication. MCM7 is reported to be involved in tumor formation and progression, whereas the expression profile and molecular function of MCM7 in colorectal cancer (CRC) remain unknown. In this study, we aimed to evaluate the clinical significance and biological function of MCM7 in CRC and investigated whether MCM7 can be used for a differential diagnosis in CRC and whether it may serve as a more sensitive proliferation marker for CRC evaluation. Moreover, immunohistochemical analysis of MCM7 was performed in a total of 89 specimens, and high MCM7 expression levels were associated with worse overall survival (OS) in CRC patients. Furthermore, the cell functional test suggested that lentivirus-mediated silencing of MCM7 with shRNA in CRC cells significantly inhibited cellular proliferation and promoted apoptosis in vitro and inhibited tumor growth in vivo. Additionally, mechanistic studies further demonstrated that P21-activated protein kinase 2 (PAK2) was regulated by MCM7 via microarray analysis and cell functional recovery tests, and miR-107 played a role in regulating expression MCM7 via miRNA microarray analysis and 3'UTR reporter assays. Taken together, our results suggest that the miR-107/MCM7/PAK2 pathway may participate in cancer progression and that MCM7 may serve as a prognostic biomarker in CRC.
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Affiliation(s)
- Menglin Zhao
- Department of Medical Oncology, First Affiliated Hospital of Bengbu Medical College, Bengbu 233004, Anhui, PR China
| | - Yanyan Wang
- Department of Medical Oncology, First Affiliated Hospital of Bengbu Medical College, Bengbu 233004, Anhui, PR China
| | - Chenchen Jiang
- Cancer Neurobiology Group, School of Biomedical Sciences & Pharmacy, The University of Newcastle, Callaghan, NSW 2308, Australia; School of Medicine & Public Health, The University of Newcastle, Callaghan, NSW 2308, Australia
| | - Qiang Wang
- Department of Network Information Center, Bengbu Medical College, Bengbu 233004, Anhui, PR China
| | - Jiaqi Mi
- Department of Medical Oncology, First Affiliated Hospital of Bengbu Medical College, Bengbu 233004, Anhui, PR China
| | - Yue Zhang
- Department of Medical Oncology, First Affiliated Hospital of Bengbu Medical College, Bengbu 233004, Anhui, PR China
| | - Lugen Zuo
- Department of Gastrointestinal Surgery, First Affiliated Hospital of Bengbu Medical College, Bengbu 233004, Anhui, PR China
| | - Zhijun Geng
- Department of Central Laboratory, First Affiliated Hospital of Bengbu Medical College, Bengbu 233004, Anhui, PR China
| | - Xue Song
- Department of Central Laboratory, First Affiliated Hospital of Bengbu Medical College, Bengbu 233004, Anhui, PR China
| | - Sitang Ge
- Department of Gastrointestinal Surgery, First Affiliated Hospital of Bengbu Medical College, Bengbu 233004, Anhui, PR China
| | - Jing Li
- Department of Clinical Laboratory, First Affiliated Hospital of Bengbu Medical College, Bengbu 233004, Anhui, PR China
| | - Hexin Wen
- Department of Gastrointestinal Surgery, First Affiliated Hospital of Bengbu Medical College, Bengbu 233004, Anhui, PR China
| | - Juan Wang
- Department of Medical Oncology, First Affiliated Hospital of Bengbu Medical College, Bengbu 233004, Anhui, PR China
| | - Zishu Wang
- Department of Medical Oncology, First Affiliated Hospital of Bengbu Medical College, Bengbu 233004, Anhui, PR China.
| | - Fang Su
- Department of Medical Oncology, First Affiliated Hospital of Bengbu Medical College, Bengbu 233004, Anhui, PR China.
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Deng L, Zhao M, Wang Y, Wang X, Liu J. Dexmedetomidine Inhibits Acute Lung Injury by Upregulating miR-144 Expression in Mice. J BIOMATER TISS ENG 2021. [DOI: 10.1166/jbt.2021.2676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The understanding of lung injury’s mechanisms at the molecular level is not fully completed. MicroR-NAs (miRNAs), which are part of different pathophysiological processes, are essential biological regulators that operate by suppressing target genes. A mouse model of acute lung
injury (ALI), which is triggered by lipopolysaccharide (LPS), was used to analyze miR-144 level in the ALI mice with or without dexmedetomidine treatment. Inflammation was investigated by the ratio of wet weight’s value to dry weight (W/D) of the lung, the release of cytokines TNF-α,
cytokines IL-6, and cytokines IL-1β, and MPO activity. To validate the effect of dexmedetomidine on miR-144, overex-pression and knockdown of miR-144 were applied to treat antagomir144 and agomir144. The result suggested that LPS-triggered ALI was alleviated by dexmedetomidine.
miR-144 was downregulated in ALI mice. The knockdown of miR-144 attenuated the protection of dexmedetomidine to acute lung injury. Overexpression of miR-144 attenuated the ALI, which was induced by LPS.
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Affiliation(s)
- Liqiang Deng
- Shandong Provincial Maternal and Child Health Care Hospital, Jinan 250014, China
| | - Min Zhao
- Qingdao Hospital of Traditional Chinese Medicine (Qingdao Hiser Hospital), Qingdao 266000, China
| | - Yihao Wang
- Qingdao Municipal Hospital, Qingdao 266000, China
| | - Xujian Wang
- Shandong Provincial Maternal and Child Health Care Hospital, Jinan 250014, China
| | - Juan Liu
- Shandong Provincial Maternal and Child Health Care Hospital, Jinan 250014, China
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Wang L, Xu B, Sun S, Wang B. Overexpression of long non-coding RNA H19 relieves hypoxia-induced injury by down-regulating microRNA-107 in neural stem cells. Neurosci Lett 2021; 753:135855. [PMID: 33785379 DOI: 10.1016/j.neulet.2021.135855] [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: 12/17/2020] [Revised: 03/22/2021] [Accepted: 03/24/2021] [Indexed: 10/21/2022]
Abstract
BACKGROUND Neonatal hypoxia-ischemia (HI) is one of the commonest conditions which seriously influences the development of infants' nervous system and causes series of neurological sequelaes. The aim of the present study was to analyze the potential regulatory mechanism of long non-coding (lnc) RNA H19 under hypoxia conditions. METHODS Neural stem cells (NSCs) were incubated in hypoxic conditions for 8 h to induce hypoxia injury. qRT-PCR was performed to detect H19 or micro (miR)-107 expression. Cell Counting Kit-8 (CCK-8) assay and Annexin V-FITC/PI staining assay were employed to detect the effects of hypoxia on cell viability and apoptosis, respectively. Moreover, NSCs were transfected with H19 overexpressing plasmid or shRNA-H19 and then subjected to hypoxia treatment. The effects of H19/miR-107 on NSC cell biological behaviors were confirmed. Furthermore, the signaling pathways involved in HI were analyzed using western blot. RESULTS Hypoxia treatment restrained cell viability and induced cell apoptosis in NSCs. Overexpression of lncRNA H19 attenuated hypoxia-induced NSCs injury, while knockdown of lncRNA H19 aggravated NSCs injury. Further experiments suggested that miR-107 up-regulation reversed the effects of lncRNA H19 overexpression on NSCs. Moreover, the activation of Wnt/β-catenin and PI3K/AKT pathways triggered by H19 were reversed by miR-107 up-regulation in hypoxia-treated NSCs. CONCLUSION LncRNA H19 overexpression attenuated hypoxia-induced NSCs injury and promoted activation of Wnt/β-catenin and PI3K/AKT pathways through downregulating miR-107.
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Affiliation(s)
- Lei Wang
- Department of Pediatrics, Liaocheng Second People's Hospital, The Second Hospital of Liaocheng Affiliated to Shandong First Medical University, Liaocheng, 252600, Shandong, China
| | - Bin Xu
- Department of Pediatrics, Liaocheng Second People's Hospital, The Second Hospital of Liaocheng Affiliated to Shandong First Medical University, Liaocheng, 252600, Shandong, China
| | - Shuying Sun
- Department of Cardiology, Liaocheng Second People's Hospital, The Second Hospital of Liaocheng Affiliated to Shandong First Medical University, Liaocheng, 252600, Shandong, China
| | - Bin Wang
- Department of Children Rehabilitation, Liaocheng Second People's Hospital, The Second Hospital of Liaocheng Affiliated to Shandong First Medical University, Liaocheng, 252600, Shandong, China.
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Abstract
PURPOSE One of the most important serious malignancies is gastric cancer (GC) with a high mortality globally. In this way, beside the environmental factors, genetic parameter has a remarkable effective fluctuation in GC. Correspondingly, telomeres are nucleoprotein structures measuring the length of telomeres and they have special potential in diagnosis of various types of cancers. Defect protection of the telomeric length initiates the instability of the genome during cancer, including gastric cancer. The most common way of maintaining telomere length is the function of the telomerase enzyme that replicates the TTAGGG to the end of the 3' chromosome. METHODS In this review, we want to discuss the alterations of hTERT repression on the modification of TERRA gene expression in conjunction with the importance of telomere and telomerase in GC. RESULTS The telomerase enzyme contains two essential components called telomerase reverse transcriptase (hTERT) and RNA telomerase (hTR, hTERC). Deregulation of hTERT plays a key role in the multistage process of tumorigenicity and anticancer drug resistance. The direct relationship between telomerase activity and hTERT has led to hTERT to be considered a key target for cancer treatment. Recent results show that telomeres are transcribed into telomeric repeat-containing RNA (TERRA) in mammalian cells and are long noncoding RNAs (lncRNAs) identified in different tissues. In addition, most chemotherapy methods have a lot of side effects on normal cells. CONCLUSION Telomere and telomerase are useful therapeutic goal. According to the main roles of hTERT in tumorigenesis, growth, migration, and cancer invasion, hTERT and regulatory mechanisms that control the expression of hTERT are attractive therapeutic targets for cancer treatment.
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Tang J, Liu ZY, Tang Y, Wang Y. Effects of Dicer1 targeted by EBV-miR-BART6-5p on biological properties and radiosensitivity of nasopharyngeal carcinoma. Hum Exp Toxicol 2020; 40:977-993. [PMID: 33305599 DOI: 10.1177/0960327120979020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
OBJECTIVE To discuss the effects of Epstein-Barr virus (EBV)-encoded BamHI A rightward transcript (BART) microRNA (miR-BART6-5p) by targeting Dicer1 on biological properties and radiosensitivity of nasopharyngeal carcinoma (NPC). METHODS NPC patients (n = 96) treated with radiotherapy were collected from Jan 2010 to Jan 2011. Real-time quantitative PCR (qRT-PCR) and western blot were carried out to measure the expression of miR-BART6-5p and Dicer1. Dual luciferase reporter gene assay verified that miR-BART6-5p targeted Dicer1. CCK8, wound-healing, Transwell and Annexin-FITC/PI were employed to evaluate the effects of Dicer1 mediated by miR-BART6-5p on biological characteristics of NPC cells. The radiosensitivity of miR-BART6-5p targeting Dicer1 was assessed in vitro and in vivo. RESULTS Increased miR-BART6-5p and decreased Dicer1 were discovered in NPC patients, displaying a close association with T-stage, clinical stage, as well as Pre-DNA of NPC. While elevated Dicer1 and miR-BART6-5p down-regulation in NPC patients were found after effective radiotherapy. Both miR-BART6-5p and Dicer1 were prognostic factors of NPC. Down-regulation of miR-BART6-5p could enhance Dicer1 expression and inhibit NPC cell proliferation, invasion and migration with promoted apoptosis. Clone formation assay also showed miR-BART6-5p down-regulation reduced planting efficiency (PE), which further decreased with the increased dose of irradiation. Injection with miR-BART6-5p inhibitors in nude mice after 6-Gy irradiation contributed to the overexpression of Dicer1 and the inhibition of tumor growth. CONCLUSIONS EBV-miR-BART6-5p may target Dicer1 to facilitate proliferation and metastasis of NPC cells and suppress apoptosis, thus being a new target for NPC therapy.
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Affiliation(s)
- Jing Tang
- Department of Stomatology, Jingzhou Central Hospital, The Second Clinical Medical College, Yangtze University, Jingzhou, China
| | - Zhao-Yang Liu
- Department of Stomatology, Jingzhou Central Hospital, The Second Clinical Medical College, Yangtze University, Jingzhou, China
| | - Yi Tang
- Department of Stomatology, Jingzhou Central Hospital, The Second Clinical Medical College, Yangtze University, Jingzhou, China
| | - Yan Wang
- Department of Otolaryngology, 549615The People's Hospital of Rizhao, Rizhao, China
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Wilczynski M, Kielbik M, Senderowska D, Krawczyk T, Szymanska B, Klink M, Bieńkiewicz J, Romanowicz H, Frühauf F, Malinowski A. MiRNA-103/107 in Primary High-Grade Serous Ovarian Cancer and Its Clinical Significance. Cancers (Basel) 2020; 12:cancers12092680. [PMID: 32961797 PMCID: PMC7563310 DOI: 10.3390/cancers12092680] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 09/14/2020] [Accepted: 09/17/2020] [Indexed: 11/16/2022] Open
Abstract
High levels of miRNA-103/107 are associated with poor outcomes in the case of breast cancer patients. MiRNA-103/107-DICER axis may be one of the key regulators of cancer aggressiveness. MiRNA-103/107 expression levels have never been related to patients' clinicopathological data in epithelial ovarian cancer. We aimed to assess miRNA-103/107 expression levels in high grade serous ovarian cancer tissues. Expression levels of both miRNAs were related to the clinicopathological features and survival. We also evaluated expression levels of miRNA-103/107 and DICER in selected ovarian cancer cell lines (A2780, A2780cis, SK-OV-3, OVCAR3). We assessed the relative expression of miRNA-103/107 (quantitative reverse transcription-polymerase chain reaction) in fifty archival formalin-fixed paraffin-embedded tissue samples of primary high grade serous ovarian cancer. Then, miRNA-103/107 and DICER expression levels were evaluated in selected ovarian cancer cell lines. Additionally, DICER, N-/E-cadherin protein levels were assessed with the use of western blot. We identified miRNA-107 up-regulation in ovarian cancer in comparison to healthy tissues (p = 0.0005). In the case of miRNA-103, we did not observe statistically significant differences between cancerous and healthy tissues (p = 0.07). We did not find any correlations between miRNA-103/107 expression levels and clinicopathological features. Kaplan-Meier survival (disease-free and overall survival) analysis revealed that both miRNAs could not be considered as prognostic factors. SK-OV-3 cancer cell lines were characterized by high expression of miRNA-103/107, relatively low expression of DICER (western-blot), and relatively high N-cadherin levels in comparison to other ovarian cancer cell lines. Clinical and prognostic significance of miRNA-103/107 was not confirmed in our study.
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Affiliation(s)
- Milosz Wilczynski
- Department of Operative Gynecology, Endoscopy and Gynecologic Oncology, Polish Mother’s Memorial Hospital Research Institute, 281 Rzgowska Str., 93-338 Lodz, Poland;
- Correspondence: ; Tel.: +48-42-2711131
| | - Michal Kielbik
- Institute of Medical Biology, Polish Academy of Sciences, 106 Lodowa Str., 93-232 Lodz, Poland; (M.K.); (M.K.)
| | - Daria Senderowska
- Department of Molecular Medicine, Medical University of Lodz, Al. Kościuszki 4, 90-419 Lodz, Poland;
| | - Tomasz Krawczyk
- Department of Clinical Pathology, Polish Mothers’ Memorial Hospital-Research Institute, 281 Rzgowska Str., 93-338 Lodz, Poland; (T.K.); (H.R.)
| | - Bozena Szymanska
- The Central Laboratory of Medical University in Lodz, 6/8 Mazowiecka Str., 92-215 Lodz, Poland;
| | - Magdalena Klink
- Institute of Medical Biology, Polish Academy of Sciences, 106 Lodowa Str., 93-232 Lodz, Poland; (M.K.); (M.K.)
| | - Jan Bieńkiewicz
- Department of Operative Gynecology, Endoscopy and Gynecologic Oncology, Polish Mother’s Memorial Hospital Research Institute, 281 Rzgowska Str., 93-338 Lodz, Poland;
| | - Hanna Romanowicz
- Department of Clinical Pathology, Polish Mothers’ Memorial Hospital-Research Institute, 281 Rzgowska Str., 93-338 Lodz, Poland; (T.K.); (H.R.)
| | - Filip Frühauf
- Gynecologic Oncology Center, Department of Obstetrics and Gynecology, First Faculty of Medicine, Charles University in Prague and General University Hospital in Prague, 128 00 Prague, Czech Republic;
| | - Andrzej Malinowski
- Department of Surgical and Endoscopic Gynecology, Medical University in Lodz, Al. Kościuszki 4, 90-419 Lodz, Poland;
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Ahadi A. Dysregulation of miRNAs as a signature for diagnosis and prognosis of gastric cancer and their involvement in the mechanism underlying gastric carcinogenesis and progression. IUBMB Life 2020; 72:884-898. [DOI: 10.1002/iub.2259] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Accepted: 02/08/2020] [Indexed: 02/06/2023]
Affiliation(s)
- Alireza Ahadi
- Department of Medical Genetics, School of MedicineShahid Beheshti University of Medical Sciences Tehran Iran
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15
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Wang L, Li K, Wang C, Shi X, Yang H. miR-107 regulates growth and metastasis of gastric cancer cells via activation of the PI3K-AKT signaling pathway by down-regulating FAT4. Cancer Med 2019; 8:5264-5273. [PMID: 31297980 PMCID: PMC6718591 DOI: 10.1002/cam4.2396] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Revised: 06/14/2019] [Accepted: 06/17/2019] [Indexed: 12/22/2022] Open
Abstract
PURPOSE To investigate the effect of miR-107 on the growth and metastasis of gastric cancer (GC) and elucidate the probable mechanisms. METHODS The expression of miR-107 and FAT4 in GC tissues and cells were detected using qRT-PCR. Bioinformatics and dual luciferase reporter gene assays were used to analyze the relationship between miR-107 and FAT4. miR-NC, miR-107 inhibitor, pcDNA3.1-FAT4 and siRNA-FAT4 were transfected into AGS and MKN-45 GC cell lines, respectively. The proliferation and migration abilities of GC cells after transfection were evaluated using the MTT assay, scratch test and transwell assay. The expression of epithelial-mesenchymal transition (EMT) markers: E-cadherin, N-cadherin, vimentin and related proteins of the PI3K/AKT signaling pathway were determined using western blot. The xenograft tumors of nude mice were observed to assess the tumorigenicity of GC cells in vivo. RESULTS MiR-107 was up-regulated, while FAT4 was down-regulated in GC tissues and cells (P < 0.05); FAT4 was targeted and negatively regulated by miR-107. Down-regulating miR-107 or up-regulating FAT4 inhibited the GC cells proliferation, migration, invasion and tumorigenicity, and could also reduce the expression of N-cadherin, vimentin, p-PI3K and p-Akt expression and up-regulate E-cadherin. CONCLUSIONS miR-107 promotes growth and metastasis in GC via activation of PI3K-AKT signaling by targeting FAT4, which may be a target for GC treatment.
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Affiliation(s)
- Li Wang
- Department of GastroenterologyHenan Provincial People's Hospital (Zhengzhou University People's HospitalFuwai Central China Cardiovascular Hospital)ZhengzhouHenan ProvinceChina
| | - Kunkun Li
- Department of GastroenterologyZhengzhou Central Hospital Affiliated to Zhengzhou UniversityZhengzhouHenan ProvinceChina
| | - Chen Wang
- Department of Neck, Shoulder, Waist and LegZhengzhou Osteopathy HospitalZhengzhouChina
| | - Xiaoxin Shi
- Health Examination CentreHenan Provincial People's Hospital (Zhengzhou University People's HospitalFuwai Central China Cardiovascular Hospital)ZhengzhouHenan ProvinceChina
| | - Huiyu Yang
- Department of GastroenterologyThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouHenan ProvinceChina
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Luo Y, Hua T, You X, Lou J, Yang X, Tang N. Effects of MiR-107 on The Chemo-drug Sensitivity of Breast Cancer Cells. Open Med (Wars) 2019; 14:59-65. [PMID: 31346547 PMCID: PMC6642800 DOI: 10.1515/med-2019-0009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Accepted: 09/05/2018] [Indexed: 02/06/2023] Open
Abstract
Background A growing body of evidence indicates that aberrant expression of miR-107 plays a core role in cancers. This study aims to demonstrate the function of miR-107 and its roles in chemo-drug resistance in breast cancer cells. Methodology CCK-8 assays were carried out to test the effect of miR-107 mimics on the proliferation of MCF-7 cells. The apoptosis level of each group was detected by flow cytometry. miR-107 level, mRNA levels of Bcl-2/Bax and TRIAP1 were detected by quantitative real-time Polymerase Chain Reaction (qRT-PCR) analysis. Protein levels of Bcl-2/Bax, p-Akt/Akt in MCF-7 cells were detected by using Western Blot. Lastly, the dual luciferase reporter gene assay system was used to confirm interaction between miR-107 and its target gene TRIAP1. Results CCK-8 assays indicated that miR-107 mimics augmented Taxol-induced cell viability inhibition. Flow cytometry showed that miR-107 mimics augmented Taxol-induced elevation of cell apoptosis. qRT-PCR analysis revealed that miR-107 mimics inhibited the mRNA expression of Bcl-2 and induced the mRNA level of Bax. Western Blotting indicated that miR-107 mimics inhibited the expression of proteins Bcl-2 and p-Akt, and induced the expression of Bax, while showing no significant effects on Akt. The relative luciferase activity revealed that oncogene TRIAP1 is a potential target gene of miR-107. Conclusions miR-107 plays a role in regulating chemo-drug sensitivity in mammary cancer cell by targeting TRIAP1.
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Affiliation(s)
- Yong Luo
- Breast and Thyroid Surgery, Ningbo Medical Center LiHuili Eastern Hospital, Ningbo 315000, Zhejiang, China
| | - Tebo Hua
- Breast and Thyroid Surgery, Ningbo Medical Center LiHuili Eastern Hospital, Ningbo 315000, Zhejiang, China
| | - Xia You
- Department Of Quality Control, Mindong Hospital Affiliated to Fujian Medical University, Fu'an 355000, Fujian, China
| | - Jinfeng Lou
- Department Of Quality Control, Mindong Hospital Affiliated to Fujian Medical University, Fu'an 355000, Fujian, China
| | - Xuxiong Yang
- Oncological Surgery, Mindong Hospital Affiliated to Fujian Medical University, Fu'an 355000, Fujian, China
| | - Ningwen Tang
- Mindong Hospital Affiliated to Fujian Medical University, NO. 89 Heshan Road, Fu'an 355000, Fujian, China
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17
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Ren W, Zhang X, Li W, Feng Q, Feng H, Tong Y, Rong H, Wang W, Zhang D, Zhang Z, Tu S, Zhu X, Zhang Q. Exosomal miRNA-107 induces myeloid-derived suppressor cell expansion in gastric cancer. Cancer Manag Res 2019; 11:4023-4040. [PMID: 31190980 PMCID: PMC6511657 DOI: 10.2147/cmar.s198886] [Citation(s) in RCA: 75] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2018] [Accepted: 02/20/2019] [Indexed: 12/23/2022] Open
Abstract
Background: Myeloid-derived suppressor cells (MDSCs) promote immunosuppression in the tumor microenvironment, support tumor growth and survival, and may contribute to immunotherapy resistance. Recent studies showed that tumor-derived exosomes (TDEs) can induce MDSCs accumulation and expansion, the mechanisms of which are largely unknown. Methods: The morphologies and sizes of the exosomes was observed by using a JEM-1400 transmission electron microscope. MicroRNA(miR)-107 and ARG1, DICER1, PTEN, PI3K, AKT, mTOR, and NF-kB mRNAs were quantified by quantitative reverse tanscription PCR. Dual-Luciferase Reports Assay were used to examine the expression of genes which was targeted by miR-107. The expression of proteins were analyzed by using western blot. Results: MiR-107 was not only overexpressed in gastric cancer cells but also enriched in their secreted TDEs. Also, these miR-107 enriched TDEs could be taken up by HLA-DR-CD33+MDSCs, where miR-107 was able to target and suppress expression of DICER1 and PTEN genes. Dampened DICER1 expression supported expansion of MDSCs , while decreased PTEN led to activation of the PI3K pathway, resulting in increased ARG1 expression. Furthemore, gastric cancer-derived miR-107 TDEs, when dosed intravenously into mice, were also capable of inducing expansion of CD11b+Gr1+/high MDSCs in mouse peripheral blood and altering expression of DICER1, PTEN, ARG1, and NOS2 in the MDSCs. Conclusions: Our findings demonstrate for the first time that gastric cancer-secreted exosomes are able to deliver miR-107 to the host MDSCs where they induce their expansion and activition by targeting DICER1 and PTEN genes, thereby may provide novel cancer therapeutics target for gastric cancer.
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Affiliation(s)
- WeiHong Ren
- Department of Histology and Embryology, College of Basic Medicine, Zhengzhou University, Zhengzhou, Henan Province, People's Republic of China.,Department of Laboratory Medicine, The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, Henan Province, People's Republic of China
| | - XuRan Zhang
- Department of Laboratory Medicine, The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, Henan Province, People's Republic of China
| | - WenBo Li
- Department of Laboratory Medicine, The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, Henan Province, People's Republic of China
| | - Qian Feng
- Department of Laboratory Medicine, The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, Henan Province, People's Republic of China
| | - HuiJie Feng
- Department of Laboratory Medicine, The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, Henan Province, People's Republic of China
| | - Yan Tong
- Department of Laboratory Medicine, The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, Henan Province, People's Republic of China
| | - Hao Rong
- Department of Laboratory Medicine, The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, Henan Province, People's Republic of China
| | - Wei Wang
- Department of Laboratory Medicine, The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, Henan Province, People's Republic of China
| | - Dai Zhang
- Department of Laboratory Medicine, The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, Henan Province, People's Republic of China
| | - ZhenQiang Zhang
- Immunology Laboratory of Chinese Medicine, Henan University of Chinese Medicine, Zhengzhou, Henan Province, People's Republic of China
| | - ShiChun Tu
- Neurodegenerative Disease Center, Scintillon Institute, San Diego, CA, USA
| | - XiaoYan Zhu
- Department of Histology and Embryology, College of Basic Medicine, Zhengzhou University, Zhengzhou, Henan Province, People's Republic of China
| | - QinXian Zhang
- Department of Histology and Embryology, College of Basic Medicine, Zhengzhou University, Zhengzhou, Henan Province, People's Republic of China
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18
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Gong J, Lu X, Xu J, Xiong W, Zhang H, Yu X. Coexpression of UCA1 and ITGA2 in pancreatic cancer cells target the expression of miR-107 through focal adhesion pathway. J Cell Physiol 2018; 234:12884-12896. [PMID: 30569514 DOI: 10.1002/jcp.27953] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Accepted: 11/19/2018] [Indexed: 01/02/2023]
Abstract
OBJECTIVES Abnormal expressions of microRNAs (miRNAs) are demonstrated in pancreatic cancer (PaC), but a major part of the mechanism remains elusive. This study mainly aimed to structure a coexpressed network of long noncoding RNA (lncRNA) and messenger RNA (mRNA) in PaC, as well as to explore their direct targets. METHODS LncRNA and mRNA microarrays were used to determine the expression profiles in PaC cells. Analysis of Kyoto Encyclopedia of Genes and Genomes pathway was performed to identify pathways associated with differentially expressed mRNAs. Coexpression profiles were identified by constructing differentially expressed lncRNA-mRNA regulatory network and further validated by quantitative real-time polymerase chain reaction assay and western blot assay. The bioinformatics computational method was applied to predict the biological target of lncRNA and mRNA, which was identified by luciferase reporter assay. Migration/invasion ability and apoptosis rate of cells were assessed by transwell assay and flow cytometry assay. RESULTS It was identified that the level of urothelial cancer associated 1 (UCA1) was increased in PaC cells, and the inhibition of UCA1 suppressed migration and invasion ability of the cancer cells. The luciferase reporter assay recognized that miR-107 was targeted by UCA1, and integrin subunit α 2 (ITGA2) was further targeted by miR-107. This confirmed the prediction of lncRNA-miRNA-mRNA regulation mechanism. In the regulatory pathways, UCA1 and ITGA2 promoted PaC progression via focal adhesion pathway related proteins such as ITGA3, SRC protooncogene/nonreceptor tyrosine kinase, protein tyrosine kinase 2, and AKT serine/threonine kinase 1. CONCLUSION The study revealed a regulatory network of UCA1-miR-107-ITGA2 and validated UCA1 and ITGA2 as potential prognostic factors for PaC.
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Affiliation(s)
- Jun Gong
- Department of Hepatobiliary and Pancreatic Surgery, Sichuan Medical Academy & Sichuan People's Hospital, Chengdu, China
| | - Xiangyu Lu
- Department of Hepatobiliary and Pancreatic Surgery, Sichuan Medical Academy & Sichuan People's Hospital, Chengdu, China
| | - Jian Xu
- Department of Hepatobiliary and Pancreatic Surgery, Sichuan Medical Academy & Sichuan People's Hospital, Chengdu, China
| | - Wei Xiong
- Department of Hepatobiliary and Pancreatic Surgery, Sichuan Medical Academy & Sichuan People's Hospital, Chengdu, China
| | - Hao Zhang
- Department of Hepatobiliary and Pancreatic Surgery, Sichuan Medical Academy & Sichuan People's Hospital, Chengdu, China
| | - Xiaojiong Yu
- Department of Hepatobiliary and Pancreatic Surgery, Sichuan Medical Academy & Sichuan People's Hospital, Chengdu, China
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Bao W, Zhang Y, Li S, Fan Q, Qiu M, Wang Y, Li Y, Ji X, Yang Y, Sang Z, Xu W, Yang Y, Wu S, Zhu Y. miR‑107‑5p promotes tumor proliferation and invasion by targeting estrogen receptor‑α in endometrial carcinoma. Oncol Rep 2018; 41:1575-1585. [PMID: 30569100 PMCID: PMC6365687 DOI: 10.3892/or.2018.6936] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Accepted: 11/14/2018] [Indexed: 12/23/2022] Open
Abstract
The aberrant expression of miR107-5p is closely related to the development of several types of human cancers. However, the role of miR-107-5p in endometrial carcinoma (EC) has not been fully confirmed. In the present study, we aimed to explore the function of miR-107-5p in EC carcinogenesis. EC samples and normal endometrial tissues were obtained by laser capture microdissection. It was determined that the expression of miR-107-5p in EC was significantly higher than that in normal endometrium, and higher miR-107-5p expression was related to advanced FIGO stages, lymph node metastasis and myometrial invasion in EC patients. Blocking miR-107-5p significantly inhibited cell proliferation, migration and invasion of EC cells in vitro and in vivo. The results of bioinformatic algorithms and luciferase reporter assays revealed that estrogen receptor α (ERα) was a direct target of miR-107-5p. miR-107-5p downregulated the expression of ERα mRNA and protein. In conclusion, our results highlighted that miR-107-5p is a novel prognostic factor that targets ERα to promote tumor proliferation and invasion of EC.
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Affiliation(s)
- Wei Bao
- Department of Obstetrics and Gynecology, Shanghai General Hospital Affiliated with Shanghai Jiao Tong University School of Medicine, Shanghai 200080, P.R. China
| | - Yan Zhang
- Department of Obstetrics and Gynecology, Shanghai General Hospital Affiliated with Shanghai Jiao Tong University School of Medicine, Shanghai 200080, P.R. China
| | - Shuangdi Li
- Department of Obstetrics and Gynecology, Shanghai General Hospital Affiliated with Shanghai Jiao Tong University School of Medicine, Shanghai 200080, P.R. China
| | - Qiong Fan
- Department of Obstetrics and Gynecology, International Peace Maternity and Child Health Hospital Affiliated with Shanghai Jiao Tong University School of Medicine, Shanghai 200030, P.R. China
| | - Meiting Qiu
- Department of Obstetrics and Gynecology, Shanghai Ninth People's Hospital Affiliated with Shanghai Jiao Tong University School of Medicine, Shanghai 200011, P.R. China
| | - Yanan Wang
- Department of Obstetrics and Gynecology, Shanghai General Hospital Affiliated with Shanghai Jiao Tong University School of Medicine, Shanghai 200080, P.R. China
| | - Yanli Li
- Department of Obstetrics and Gynecology, Shanghai General Hospital Affiliated with Shanghai Jiao Tong University School of Medicine, Shanghai 200080, P.R. China
| | - Xiaoning Ji
- Department of Obstetrics and Gynecology, Shanghai General Hospital Affiliated with Shanghai Jiao Tong University School of Medicine, Shanghai 200080, P.R. China
| | - Ye Yang
- Department of Obstetrics and Gynecology, Shanghai General Hospital Affiliated with Shanghai Jiao Tong University School of Medicine, Shanghai 200080, P.R. China
| | - Zhenyu Sang
- Department of Obstetrics and Gynecology, Shanghai General Hospital Affiliated with Shanghai Jiao Tong University School of Medicine, Shanghai 200080, P.R. China
| | - Wei Xu
- Department of Obstetrics and Gynecology, Shanghai General Hospital Affiliated with Shanghai Jiao Tong University School of Medicine, Shanghai 200080, P.R. China
| | - Yongbin Yang
- Department of Obstetrics and Gynecology, Shanghai General Hospital Affiliated with Shanghai Jiao Tong University School of Medicine, Shanghai 200080, P.R. China
| | - Sufang Wu
- Department of Obstetrics and Gynecology, Shanghai General Hospital Affiliated with Shanghai Jiao Tong University School of Medicine, Shanghai 200080, P.R. China
| | - Yaping Zhu
- Department of Obstetrics and Gynecology, Shanghai General Hospital Affiliated with Shanghai Jiao Tong University School of Medicine, Shanghai 200080, P.R. China
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Stojanovic J, Tognetto A, Tiziano DF, Leoncini E, Posteraro B, Pastorino R, Boccia S. MicroRNAs expression profiles as diagnostic biomarkers of gastric cancer: a systematic literature review. Biomarkers 2018; 24:110-119. [DOI: 10.1080/1354750x.2018.1539765] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Jovana Stojanovic
- Sezione di Igiene, Istituto di Sanità Pubblica, Università Cattolica del Sacro Cuore, Roma, Italia
| | - Alessia Tognetto
- Sezione di Igiene, Istituto di Sanità Pubblica, Università Cattolica del Sacro Cuore, Roma, Italia
| | - Danilo Francesco Tiziano
- Istituto di Medicina Genomica, Università Cattolica del Sacro Cuore, Roma, Italia
- Fondazione Policlinico Universitario A. Gemelli IRCCS, Roma, Italia
| | - Emanuele Leoncini
- Sezione di Igiene, Istituto di Sanità Pubblica, Università Cattolica del Sacro Cuore, Roma, Italia
| | - Brunella Posteraro
- Sezione di Igiene, Istituto di Sanità Pubblica, Università Cattolica del Sacro Cuore, Roma, Italia
- Fondazione Policlinico Universitario A. Gemelli IRCCS, Roma, Italia
| | - Roberta Pastorino
- Sezione di Igiene, Istituto di Sanità Pubblica, Università Cattolica del Sacro Cuore, Roma, Italia
| | - Stefania Boccia
- Sezione di Igiene, Istituto di Sanità Pubblica, Università Cattolica del Sacro Cuore, Roma, Italia
- Fondazione Policlinico Universitario A. Gemelli IRCCS, Roma, Italia
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Abstract
Intestinal-type gastric carcinoma exhibits a multistep carcinogenic sequence from adenoma to carcinoma with a gradual increase in genomic alterations. But the roles of microRNAs (miRNA) in this multistage cascade are not fully explored. To identify differentially expressed miRNA (DEM) during early gastric carcinogenesis, we performed miRNA microarray profiling with 24 gastric cancers and precursor lesions (7 early gastric cancer [EGC], 3 adenomas with high-grade dysplasia, 4 adenomas with low-grade dysplasia, and 10 adjacent normal tissues). Alterations in the expression of 132 miRNA were detected; these were categorized into three groups based on their expression patterns. Of these, 42 miRNAs were aberrantly expressed in EGC. Five miRNA (miR-26a, miR-375, miR-574-3p, miR-145, and miR-15b) showed decreased expression since adenoma. Expression of two miRNA, miR-200C and miR-29a, was down-regulated in EGCs compared to normal mucosa or adenomas. Six miRNA (miR-601, miR-107, miR-18a, miR-370, miR-300, and miR-96) showed increased expression in gastric cancer compared to normal or adenoma samples. Five representative miRNAs were further validated with RT-qPCR in independent 77 samples. Taken together, these results suggest that the dysregulated miRNA show alterations at the early stages of gastric tumorigenesis and may be used as a candidate biomarker.
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Sun L, He M, Xu N, Xu DH, Ben-David Y, Yang ZY, Li YJ. Regulation of RAB22A by mir-193b inhibits breast cancer growth and metastasis mediated by exosomes. Int J Oncol 2018; 53:2705-2714. [PMID: 30272274 DOI: 10.3892/ijo.2018.4571] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Accepted: 09/07/2018] [Indexed: 11/06/2022] Open
Abstract
Breast cancer is one of the main types of cancer affecting the health of females worldwide. Despite improvements in therapeutic approaches, cancer patients succumb to the disease due to metastasis itself, rather than the primary tumor from which metastases arise, emphasizing the need for the better understanding of the biological bases that contribute to disease progression. RAB22A, a member of the proto-oncogene RAS family, plays an important role in the formation, trafficking and metabolism of exosomes, and is associated with the occurrence and development of multiple human cancers. In this study, we demonstrate that the upregulation of RAB22A is associated with breast cancer progression and lymph node metastasis. We identified a signature of RAB22A and miR-193b that exhibited a negative association in metastatic as opposed to the surrounding normal cells, and RAB22A was identified as the target gene of miR-193b. While RAB22A was found to regulate exosomes-mediated breast cancer cell proliferation, invasion and migration, these biological characteristics were diminished in the breast cancer cells in which the RAB22A gene was knocked down or in the cells in which the exosomes were dissolved by proteinase K/RNase treatment. On the whole, the findings of this study demonstrate the critical role that miR-193b plays in the regulation of RAB22A-mediated exosome function during cancer growth and metastasis, which may have significant implications on cancer therapy.
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Affiliation(s)
- Liang Sun
- Department of Human Anatomy, College of Basic Medical Sciences, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Miao He
- Department of Anesthesia, The Second Hospital of Jilin University, Changchun, Jilin 130022, P.R. China
| | - Ning Xu
- Department of Human Anatomy, College of Basic Medical Sciences, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Da-Hai Xu
- Department of Human Anatomy, College of Basic Medical Sciences, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Yaacov Ben-David
- State Key Laboratory for Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, Guizhou 550025, P.R. China
| | - Zhao-Ying Yang
- Department of Breast Surgery, China-Japan Union Hospital of Jilin University, Changchun, Jilin 130033, P.R. China
| | - You-Jun Li
- Department of Human Anatomy, College of Basic Medical Sciences, Jilin University, Changchun, Jilin 130021, P.R. China
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Abstract
MicroRNAs are short regulatory RNAs that posttranscriptionally modulate gene expression and thus play crucial roles in controlling cancer-onset, growth, and progression processes. miR107, a highly conserved microRNA that maps to intron 5 of the PANK1 gene, contributes to the regulation of normal and tumor biological processes. Studies have reported that miR107 has oncogenic or tumor-suppressor functions in different human tumors. The pleiotropic functions of miR107 in various cancers are achieved via its targeting different genes that are involved in tumor proliferation, invasiveness, metastasis, angiogenesis, and chemotherapy-response pathways. The carcinogenicity or cancer-suppressor effects of miR107 occur in a tissue- and cell-specific manner, and the expression level of miR107 can be affected by various factors, including epigenetic and genetic factors, treatment exposure, and daily diet. A comprehensive analysis of the current literature suggests that miR107 functions as a central element in the regulation of cancer networks and can be used as a potential diagnostic and prognostic biomarker and drug target for therapeutic intervention.
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Affiliation(s)
- Zhiying Luo
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, Hunan, China, .,Institute of Clinical Pharmacology, Hunan Key Laboratory of Pharmacogenetics, Central South University, Changsha, Hunan, China,
| | - Yi Zheng
- Department of Pharmacy, Hunan Province Maternal and Child Health, Changsha, Hunan, China
| | - Wei Zhang
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, Hunan, China, .,Institute of Clinical Pharmacology, Hunan Key Laboratory of Pharmacogenetics, Central South University, Changsha, Hunan, China,
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24
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Yuan HL, Wang T, Zhang KH. MicroRNAs as potential biomarkers for diagnosis, therapy and prognosis of gastric cancer. Onco Targets Ther 2018; 11:3891-3900. [PMID: 30013369 PMCID: PMC6039071 DOI: 10.2147/ott.s156921] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Despite the widespread use of endoscopy and conventional tumor biomarkers, gastric cancer (GC) remains one of the most frequent causes of cancer-related deaths worldwide due to its late diagnosis and poor response to treatment. Valuable and practical biomarkers are urgently needed to screen patients with a high risk of GC that can complement endoscopic diagnosis. Such biomarkers will enable the efficient prediction of therapeutic response and prognosis of GC patients and favor the establishment of an effective treatment strategy for each and every patient. MicroRNAs (miRNAs) are a class of small non-coding RNA sequences that play important roles in modulating key biological processes by regulating the expression of target genes. Expectedly, miRNAs are abnormally expressed within the tumor tissue and in associated biological fluids of GC patients including their blood, gastric juice, and urine. Accumulating evidence indicates that miRNAs are potential biomarkers with multiple diagnostic functions for GC. Here, we review recent advances and challenges in using miRNAs, particularly biofluid miRNAs, as GC biomarkers with potential clinical applications including diagnosing, clinically staging, and predicting malignant behaviors, therapy response, recurrence after surgery and survival time.
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Affiliation(s)
- Hai-Liang Yuan
- Department of Gastroenterology, the First Affiliated Hospital of Nanchang University, Jiangxi Institute of Gastroenterology & Hepatology, Nanchang, People's Republic of China,
| | - Ting Wang
- Department of Gastroenterology, the First Affiliated Hospital of Nanchang University, Jiangxi Institute of Gastroenterology & Hepatology, Nanchang, People's Republic of China,
| | - Kun-He Zhang
- Department of Gastroenterology, the First Affiliated Hospital of Nanchang University, Jiangxi Institute of Gastroenterology & Hepatology, Nanchang, People's Republic of China,
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25
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González-Arriagada WA, Olivero P, Rodríguez B, Lozano-Burgos C, de Oliveira CE, Coletta RD. Clinicopathological significance of miR-26, miR-107, miR-125b, and miR-203 in head and neck carcinomas. Oral Dis 2018; 24:930-939. [PMID: 29667275 DOI: 10.1111/odi.12872] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2018] [Revised: 03/27/2018] [Accepted: 04/10/2018] [Indexed: 12/19/2022]
Abstract
OBJECTIVES MicroRNAs play a role in the development and progression of head and neck squamous cell carcinomas (HNSCC). Our aim was to study the expression of miR-26, miR-107, miR-125b, and miR-203 in primary HNSCC with and without lymph node metastasis and their clinicopathological significance. MATERIALS AND METHODS The expression of microRNAs in primary HNSCC with lymph node metastasis (n = 16) and their matched lymph node, as well as primary tumors without metastasis (n = 16), were determined by quantitative RT-PCR and analyzed with clinicopathological features and survival. RESULTS The expression levels of miR-26 (p < .05) and miR-125b (p < .01) were higher in metastatic primary HNSCC, while levels of miR-203 (p < .01) were lower. The expression of the microRNAs was associated with clinicopathological features, including miR-26 high expression and N stage (p = .04), poor differentiation (p = .005) and recurrence (p = .007), miR-125b high expression and N stage (p = .0005) and death (p = .02), and low levels of miR-203 and N stage (p = .04). The high expression of miR-26 was associated with shortened disease-free survival, and high miR-125b expression was an independent risk factor for poor disease-specific survival. CONCLUSIONS These findings suggest that miR-26 and miR-125b may be associated with the progression and metastasis of HNSCC and that miR-203 is associated with a more favorable prognosis.
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Affiliation(s)
- W A González-Arriagada
- Facultad de Odontología, Patología y Diagnóstico Oral, Universidad de Valparaíso, Valparaíso, Chile
| | - P Olivero
- Facultad de Medicina, Universidad de Valparaíso, Valparaíso, Chile
| | - B Rodríguez
- Facultad de Medicina, Universidad de Valparaíso, Valparaíso, Chile
| | - C Lozano-Burgos
- Servicio de Anatomía Patológica, Hospital Carlos Van Buren, Valparaíso, Chile
| | - C E de Oliveira
- Department Pathology and Parasitology, Institute of Biomedical Sciences, Federal University of Alfenas, Alfenas, Minas Gerais, Brazil.,Oral Pathology, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
| | - R D Coletta
- Oral Pathology, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
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26
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Yang H, Wang H, Shu Y, Li X. miR-103 Promotes Neurite Outgrowth and Suppresses Cells Apoptosis by Targeting Prostaglandin-Endoperoxide Synthase 2 in Cellular Models of Alzheimer's Disease. Front Cell Neurosci 2018; 12:91. [PMID: 29674956 PMCID: PMC5895658 DOI: 10.3389/fncel.2018.00091] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Accepted: 03/16/2018] [Indexed: 12/27/2022] Open
Abstract
miR-103 has been reported to be decreased in brain of transgenic mouse model of Alzheimer’s disease (AD) and in cerebrospinal fluid (CSF) of AD patients, while the detailed mechanism of its effect on AD is obscure, thus this study aimed to investigate the effect of miR-103 expression on neurite outgrowth and cells apoptosis as well as its targets in cellular models of AD. Blank mimic (NC1-mimic), miR-103 mimic, blank inhibitor (NC2-mimic) and miR-103 inhibitor plasmids were transferred into PC12 cellular AD model and Cellular AD model of cerebral cortex neurons which were established by Aβ1–42 insult. Rescue experiment was subsequently performed by transferring Prostaglandin-endoperoxide synthase 2 (PTGS2) and miR-103 mimic plasmid. mRNA and protein expressions were detected by qPCR and Western Blot assays. Total neurite outgrowth was detected by microscope, cells apoptosis was determined by Hoechst/PI assay, and apoptotic markers Caspase 3 and p38 expressions were determined by Western Blot assay. In both PC12 and cerebral cortex neurons cellular AD models, miR-103 mimic increases the total neurite outgrowth compared with NC1-mimic, while miR-103 inhibitor decreases the total neurite outgrowth than NC2-inhibitor. The apoptosis rate was decreased in miR-103 mimic group than NC1-mimic group while increased in miR-103 inhibitor group than NC2-inhibitor group. PTGS2, Adisintegrin and metalloproteinase 10 (ADAM10) and neprilysin (NEP) were selected as target genes of miR-103 by bioinformatics analysis. And PTGS2 was found to be conversely regulated by miR-103 expression while ADAM10 and NEP were not affected. After transfection by PTGS2 and miR-103 mimic plasmid in PC12 cellular AD model, the total neurite growth was shortened compared with miR-103 mimic group, and cells apoptosis was enhanced which indicated PTGS2 mimic attenuated the influence of miR-103 mimic on progression of AD. In conclusion, miR-103 promotes total neurite outgrowth and inhibits cells apoptosis by targeting PTGS2 in cellular models of AD.
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Affiliation(s)
- Hui Yang
- Department of Neurology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Hongcai Wang
- Department of Neurology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yongwei Shu
- Department of Neurology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xuling Li
- Department of Neurology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
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miR-135a inhibits tumor metastasis and angiogenesis by targeting FAK pathway. Oncotarget 2018; 8:31153-31168. [PMID: 28415713 PMCID: PMC5458197 DOI: 10.18632/oncotarget.16098] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Accepted: 03/01/2017] [Indexed: 01/28/2023] Open
Abstract
Tumor metastasis has been the major cause of recurrence and death in patients with gastric cancer. Here, we find miR-135a has a decreased expression in the metastatic cell lines compared with its parental cell lines by analyzing microRNA array. Further results show that miR-135a is downregulated in the majority of human gastric cancer tissues and cell lines. Decreased expression of miR-135a is associated with TNM stage and poor survival. Besides, regaining miR-135a in gastric cancer cells obviously inhibits tumor growth, migration, invasion and angiogenesis by targeting focal adhesion kinase (FAK) pathway. Bioinformatics analysis and molecular experiments further prove that miR-135a is a novel downstream gene of tumor suppressor p53. Blocking FAK with its inhibitor can also enhance miR-135a expression through inducing p53. In summary, this study reveals the expression and function of miR-135a in gastric cancer and uncovers a novel regulatory mechanism of miR-135a.
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28
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Li Q, Wang G, Wang H. miR-126 Functions as a Tumor Suppressor by Targeting SRPK1 in Human Gastric Cancer. Oncol Res 2018; 26:1345-1353. [PMID: 29510776 PMCID: PMC7844751 DOI: 10.3727/096504018x15180508535835] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
The expression of miR-126 and serine–arginine protein kinase 1 (SRPK1) are linked to tumor development; nevertheless, its role in the tumor growth and invasion of gastric cancer (GC) and the underlying mechanism have not been clarified. Here the expression and role of miR-126 and SRPK1 were investigated in GC tissues and cells by in vitro assay, and then targets of miR-126 were identified by dual-luciferase reporter assay. In this study, miR-126 expression was downregulated and associated with lymph node metastasis and poor prognosis as well as SRPK1 expression. In vitro assay revealed that miR-126 obviously inhibited the proliferative and invasive capabilities of GC cells. The dual-luciferase reporter assay showed that miR-126 targets the 3′-UTR of SRPK1 and downregulates its expression. SRPK1 overexpression promoted cell migration and invasion. In conclusion, the reduced expression of miR-126 is suggestive of the risk of GC recurrence and metastasis, and miR-126 functions as a tumor suppressor by targeting SRPK1 expression in the development of GC.
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Affiliation(s)
- Qiaorong Li
- Department of Intensive Care Unit, Shandong Provincial Third Hospital, Jinan, Shandong, P.R. China
| | - Geng Wang
- Department of Emergency, Laiwu City People's Hospital, Laiwu, Shandong, P.R. China
| | - Hong Wang
- Department of General Surgery, Shandong Provincial Third Hospital, Jinan, Shandong, P.R. China
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29
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The Hippo pathway as a drug target in gastric cancer. Cancer Lett 2018; 420:14-25. [PMID: 29408652 DOI: 10.1016/j.canlet.2018.01.062] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Revised: 01/23/2018] [Accepted: 01/24/2018] [Indexed: 02/08/2023]
Abstract
The Hippo tumor suppressor pathway is critical for balancing cellular differentiation and proliferation in response to cell-cell contact, mechanical signals and diffusible signals such as lysophosphatidic acid. Hippo pathway signaling is frequently dysregulated in gastric cancer (GC), as well as many other kinds of solid tumors, contributing to multiple aspects of malignant progression including unchecked cell division and metastasis. Considering the importance of this Hippo pathway in cancer, its pharmacological disruption may be of huge benefit in the fight against this disease. In this review, we summarize the components of the Hippo pathway, its crosstalk with other major oncogenic signaling pathways, common mechanisms of its dysregulation, as well as potential therapeutic approaches of targeting this pathway for cancer treatment, specifically in a GC context.
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30
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Yao Q, Gu A, Wang Z, Xue Y. MicroRNA-144 functions as a tumor suppressor in gastric cancer by targeting cyclooxygenase-2. Exp Ther Med 2018; 15:3088-3095. [PMID: 29456712 DOI: 10.3892/etm.2018.5763] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Accepted: 11/29/2017] [Indexed: 12/23/2022] Open
Abstract
Gastric cancer (GC) poses a serious public health threat and the 5-year survival rate of patients with GC is low. MicroRNAs (miRNAs/miRs) may serve oncogenic or tumor suppressor functions during tumorigenesis by regulating cell proliferation, apoptosis, migration and invasion and it has been demonstrated that they may be dysregulated in various types of cancer. The present study demonstrated that miR-144 and GATA4 were downregulated in GC tissues and cell lines and suggested that this may be due to hypermethylation. Additionally, miR-144 and GATA4 had synergistic effects on GC cells by repressing cell proliferation and inducing cell cycle arrest and apoptosis. The results of bioinformatics and a luciferase reporter assay indicated that cyclooxygenase-2 (COX-2) is a direct target of miR-144 and that miR-144 negatively regulated the expression of COX-2, which inhibits the viability of GC cells. GATA4 also induced a similar effect on COX-2. Taken together, the results of the present study may improve understanding of the underlying mechanism of miR-144 and GATA4 in GC.
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Affiliation(s)
- Qiang Yao
- Department of Gastrointestinal Surgery, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang 150000, P.R. China
| | - Anxin Gu
- Department of Radiotherapy, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang 150000, P.R. China
| | - Zhuozhong Wang
- Department of Statistics, Harbin Medical University, Harbin, Heilongjiang 150000, P.R. China
| | - Yingwei Xue
- Department of Gastrointestinal Surgery, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang 150000, P.R. China
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31
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Zhang Y, Guan DH, Bi RX, Xie J, Yang CH, Jiang YH. Prognostic value of microRNAs in gastric cancer: a meta-analysis. Oncotarget 2017; 8:55489-55510. [PMID: 28903436 PMCID: PMC5589675 DOI: 10.18632/oncotarget.18590] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Accepted: 05/08/2017] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Previous articles have reported that expression levels of microRNAs (miRNAs) are associated with survival time of patients with gastric cancer (GC). A systematic review and meta-analysis was performed to study the outcome of it. DESIGN Meta-analysis. METHODS English studies estimating expression levels of miRNAs with any of survival curves in GC were identified up till March 19, 2017 through performing online searches in PubMed, EMBASE, Web of Science and Cochrane Database of Systematic Reviews by two authors independently. The pooled hazard ratios (HR) with 95% confidence intervals (CI) were used to estimate the correlation between miRNA expression and overall survival (OS). RESULTS Sixty-nine relevant articles about 26 miRNAs with 6148 patients were ultimately included. GC patients with high expression of miR-20b (HR=2.38, 95%CI=1.16-4.87), 21 (HR=1.77, 95%CI=1.01-3.08), 106b (HR=1.84, 95%CI=1.15-2.94), 196a (HR=2.66, 95%CI=1.94-3.63), 196b (HR=1.67, 95%CI=1.38-2.02), 214 (HR=1.84, 95%CI=1.27-2.67) or low expression of miR-125a (HR=2.06, 95%CI=1.26-3.37), 137 (HR=3.21, 95%CI=1.68-6.13), 141 (HR=2.47, 95%CI=1.34-4.56), 145 (HR=1.62, 95%CI=1.07-2.46), 146a (HR=2.60, 95%CI=1.63-4.13), 206 (HR=2.85, 95%CI=1.73-4.70), 218 (HR=2.61, 95%CI=1.74-3.92), 451 (HR=1.73, 95%CI=1.19-2.52), 486-5p (HR=2.45, 95%CI=1.65-3.65), 506 (HR=2.07, 95%CI=1.33-3.23) have significantly poor OS (P<0.05). CONCLUSIONS In summary, miR-20b, 21, 106b, 125a, 137, 141, 145, 146a, 196a, 196b, 206, 214, 218, 451, 486-5p and 506 demonstrate significantly prognostic value. Among them, miR-20b, 125a, 137, 141, 146a, 196a, 206, 218, 486-5p and 506 are strong biomarkers of prognosis in GC.
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Affiliation(s)
- Yue Zhang
- 1 First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan 250355, Shandong, People's Republic of China
| | - Dong-Hui Guan
- 2 Department of Orthopedics, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan 250011, Shandong, People's Republic of China
| | - Rong-Xiu Bi
- 2 Department of Orthopedics, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan 250011, Shandong, People's Republic of China
| | - Jin Xie
- 2 Department of Orthopedics, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan 250011, Shandong, People's Republic of China
| | - Chuan-Hua Yang
- 3 Department of Cardiology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan 250011, Shandong, People's Republic of China
| | - Yue-Hua Jiang
- 4 Central Laboratory, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan 250011, Shandong, People's Republic of China
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Shivakumar M, Lee Y, Bang L, Garg T, Sohn KA, Kim D. Identification of epigenetic interactions between miRNA and DNA methylation associated with gene expression as potential prognostic markers in bladder cancer. BMC Med Genomics 2017; 10:30. [PMID: 28589857 PMCID: PMC5461531 DOI: 10.1186/s12920-017-0269-y] [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] [Indexed: 01/22/2023] Open
Abstract
Background One of the fundamental challenges in cancer is to detect the regulators of gene expression changes during cancer progression. Through transcriptional silencing of critical cancer-related genes, epigenetic change such as DNA methylation plays a crucial role in cancer. In addition, miRNA, another major component of epigenome, is also a regulator at the post-transcriptional levels that modulate transcriptome changes. However, a mechanistic role of synergistic interactions between DNA methylation and miRNA as epigenetic regulators on transcriptomic changes and its association with clinical outcomes such as survival have remained largely unexplored in cancer. Methods In this study, we propose an integrative framework to identify epigenetic interactions between methylation and miRNA associated with transcriptomic changes. To test the utility of the proposed framework, the bladder cancer data set, including DNA methylation, miRNA expression, and gene expression data, from The Cancer Genome Atlas (TCGA) was analyzed for this study. Results First, we found 120 genes associated with interactions between the two epigenomic components. Then, 11 significant epigenetic interactions between miRNA and methylation, which target E2F3, CCND1, UTP6, CDADC1, SLC35E3, METRNL, TPCN2, NACC2, VGLL4, and PTEN, were found to be associated with survival. To this end, exploration of TCGA bladder cancer data identified epigenetic interactions that are associated with survival as potential prognostic markers in bladder cancer. Conclusions Given the importance and prevalence of these interactions of epigenetic events in bladder cancer it is timely to understand further how different epigenetic components interact and influence each other. Electronic supplementary material The online version of this article (doi:10.1186/s12920-017-0269-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Manu Shivakumar
- Biomedical & Translational Informatics Institute, Geisinger Health System, Danville, PA, USA
| | - Younghee Lee
- Department of Biomedical Informatics, University of Utah School of Medicine, Salt Lake City, UT, USA
| | - Lisa Bang
- Biomedical & Translational Informatics Institute, Geisinger Health System, Danville, PA, USA
| | - Tullika Garg
- Mowad Urology Department, Geisinger Health System, Danville, PA, USA
| | - Kyung-Ah Sohn
- Department of Software and Computer Engineering, Ajou University, Suwon, South Korea.
| | - Dokyoon Kim
- Biomedical & Translational Informatics Institute, Geisinger Health System, Danville, PA, USA. .,The Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, PA, USA.
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MicroRNAs as Key Effectors in the p53 Network. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2017; 333:51-90. [PMID: 28729028 DOI: 10.1016/bs.ircmb.2017.04.003] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The guardian of the genome p53 is embedded in a fine-spun network of MicroRNAs. p53 is able to activate or repress directly the transcription of MicroRNAs that are participating in the tumor-suppressive mission of p53. On the other hand, the expression of p53 is under tight control of MicroRNAs that are either targeting directly p53 or factors that are modifying its protein level or activity. Although the most important function of p53 is suggested to be transcriptional regulation, there are several nontranscriptional functions described. One of those regards the modulation of MicroRNA biogenesis. Wild-type p53 is increasing the maturation of selected MicroRNAs from the primary transcript to the precursor MiRNA by interacting with the Microprocessor complex. Furthermore, p53 is modulating the mRNA accessibility for certain MicroRNAs by association with the RISC complex and transcriptional regulation of RNA-binding proteins. In this way p53 is able to remodel the MiRNA-mRNA interaction network. As wild-type p53 is employing MicroRNAs to suppress cancer development, gain-of-function mutant p53 proteins use MicroRNAs to confer oncogenic properties like chemoresistance and the ability to drive metastasis. Like its wild-type counterpart mutant p53 is able to regulate MicroRNAs transcriptionally and posttranscriptionally. Mutant p53 affects the MiRNA processing at two cleavage steps through interfering with the Microprocessor complex and by downregulating Dicer and KSRP, a modulator of MiRNA biogenesis. Thus, MicroRNAs are essential components in the p53 pathway, contributing substantially to combat or enhance tumor development depending on the wild-type or mutant p53 context.
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Zhang L, Huang Z, Zhang H, Zhu M, Zhu W, Zhou X, Liu P. Prognostic value of candidate microRNAs in gastric cancer: A validation study. Cancer Biomark 2017; 18:221-230. [PMID: 27983528 DOI: 10.3233/cbm-160091] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND Studies have reported the prognostic value of dysregulated microRNAs (miRNAs) in gastric cancer (GC). However, the results demonstrated so far are inconsistent. OBJECTIVE To better understand the miRNAs with prognostic relevance. METHODS Evaluable miRNAs were selected based on our selection criteria and further analyzed in formalin-fixed paraffin-embedded (FFPE) tissue samples of 169 GC patients using quantitative real-time polymerase chain reaction (qRT-PCR). RESULTS A total of 19 miRNAs were selected as candidate miRNAs. Among those miRNAs identified, high expression of miR-21-5p was related to poor overall survival (OS) and disease free survival (DFS) and was identified as an independent prognostic factor. Cases with high level of miR-200c-3p showed poor DFS. Subgroup analysis revealed that high expression of miR-21-5p and miR-222-3p was associated with poor OS and DFS in GC patients not received adjuvant chemotherapy. In male patients, high expression level of miR-21-5p was related to poor OS and DFS. CONCLUSIONS The present study confirmed that elevated level of miR-21-5p could serve as an independent predictor for poor OS and DFS of GC patients. Moreover, miR-200c-3p, miR-222-3p might also play important roles in the prognosis of GC patients. Further studies are warranted to validate our findings and identify the functions and mechanisms of these miRNAs.
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35
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Sharma P, Saini N, Sharma R. miR-107 functions as a tumor suppressor in human esophageal squamous cell carcinoma and targets Cdc42. Oncol Rep 2017; 37:3116-3127. [PMID: 28393193 DOI: 10.3892/or.2017.5546] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Accepted: 12/28/2016] [Indexed: 11/06/2022] Open
Abstract
Previously, we reported significantly decreased expression of tissue and circulating miR-107 in esophageal cancer (EC). However, its role in esophageal tumorigenesis still remains elusive. Therefore, the aim of the present study was to analyze the role of miR-107 in esophageal squamous cell carcinoma (ESCC). The role of miR-107 in ESCC was evaluated using MTT assay, cell cycle analysis by flow cytometry, annexin assay, colony formation assay and scratch assay. Overexpression of miR-107 in KYSE-410 cells suppressed cell proliferation at 72 h post-transfection (p=0.0001). Moreover, a significant increase in the G0/G1 population (p<0.001) and a significant decrease in the G2/M (p=0.032) population was also observed in the miR-107-treated cells as compared to the negative control (NC). Notably, miR-107 overexpression attenuated the colony formation potential of ESCC cells by 41.83% as compared to the NC (p=0.007). miR-107 mimic inhibited ESCC cell migration in a time-dependent manner, reducing the wound closure to only 50.41±7.23% at 72 h post-transfection (p=0.041). Further analysis by Matrigel invasion assay revealed a significant decrease in the migratory and invasive abilities of the KYSE-410 cells at 72 h post miR-107 transfection. qRT-PCR analysis showed decreased expression of one of the newly identified targets of miR-107, Cdc42, at the mRNA level. Further validation by western blotting confirmed a significant reduction in the identified target at the protein level. In addition, the relative luciferase activity of the reporter containing Cdc42 3'UTR was significantly decreased upon miR-107 co-transfection, indicating it to be a direct target of miR-107. Our results herein document that miR-107 functions as a tumor suppressor and inhibits the proliferation, migration and invasion of ESCC cells. Moreover, this is the first report showing Cdc42 as a downstream target of miR-107.
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Affiliation(s)
- Priyanka Sharma
- University School of Biotechnology, Guru Gobind Singh Indraprastha University, New Delhi 110078, India
| | - Neeru Saini
- Functional Genomics Unit, CSIR Institute of Genomics and Integrative Biology, Mall Road, Delhi 110007, India
| | - Rinu Sharma
- University School of Biotechnology, Guru Gobind Singh Indraprastha University, New Delhi 110078, India
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Jiang R, Zhang C, Liu G, Gu R, Wu H. MicroRNA-107 Promotes Proliferation, Migration, and Invasion of Osteosarcoma Cells by Targeting Tropomyosin 1. Oncol Res 2017; 25:1409-1419. [PMID: 28276320 PMCID: PMC7841194 DOI: 10.3727/096504017x14882829077237] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Osteosarcoma is the most common primary bone malignancy manifested predominantly in children and young adults. Studies indicate that miR-107 is involved in the pathogenesis of osteosarcoma and that tropomyosin 1 (TPM1) acts as a tumor suppressor in many types of cancer. In this study, we analyzed the effect of miR-107 on human osteosarcoma cells and investigated the mechanism in which TPM1 is involved. miR-107 expression in human osteosarcoma tissues and cells was analyzed in quantitative real-time PCR (qRT-PCR). Human osteosarcoma (U2OS) cells were transfected with miR-107 mimic, inhibitor, or scramble controls to evaluate the effect of miR-107 on cellular migration and invasion, cell viability, and apoptosis. Cells were cotransfected with the miR-107 mimic and TPM1 3′-UTR wild-type (wt) recombinant vector or mutant type (mt) as a negative control. The binding effect of miR-107 on TPM1 3′-UTR was determined by dual-luciferase reporter assay. The expression of TPM1, apoptosis-related proteins, and signaling molecules was determined by qRT-PCR and Western blotting. The results showed that miR-107 expression was upregulated in osteosarcoma tissues and cell lines. miR-107 overexpression promoted U2OS cell viability, migration, and invasion whereas it inhibited apoptosis. miR-107 inhibitor transfection ameliorated or abolished these effects after miR-107 binding to TPM1 3′-UTR-wt regulated TPM1 expression. miR-107 in U2OS cells activated MEK/ERK and NF-κB signaling pathways via TPM1. In conclusion, miR-107 overexpression promoted U2OS cell viability, migration, and invasion via downregulation of TPM1 and might be through activating the MEK/ERK and NF-κB signaling pathways.
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Abstract
Maintaining intestinal homeostasis is a key prerequisite for a healthy gut. Recent evidence points out that microRNAs (miRNAs) act at the epicenter of the signaling networks regulating this process. The fine balance in the interaction between gut microbiota, intestinal epithelial cells, and the host immune system is achieved by constant transmission of signals and their precise regulation. Gut microbes extensively communicate with the host immune system and modulate host gene expression. On the other hand, sensing of gut microbiota by the immune cells provides appropriate tolerant responses that facilitate the symbiotic relationships. While the role of many regulatory proteins, receptors and their signaling pathways in the regulation of the intestinal homeostasis is well documented, the involvement of non-coding RNA molecules in this process has just emerged. This review discusses the most recent knowledge about the contribution of miRNAs in the regulation of the intestinal homeostasis.
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Affiliation(s)
- Antoaneta Belcheva
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, Odense, Denmark
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Wang S, Ma G, Zhu H, Lv C, Chu H, Tong N, Wu D, Qiang F, Gong W, Zhao Q, Tao G, Zhou J, Zhang Z, Wang M. miR-107 regulates tumor progression by targeting NF1 in gastric cancer. Sci Rep 2016; 6:36531. [PMID: 27827403 PMCID: PMC5101511 DOI: 10.1038/srep36531] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2016] [Accepted: 10/17/2016] [Indexed: 12/20/2022] Open
Abstract
Our previous genome-wide miRNA microarray study revealed that miR-107 was upregulated in gastric cancer (GC). In this study we aimed to explore its biological role in the pathogenesis of GC. Integrating in silico prediction algorithms with western blotting assays revealed that miR-107 inhibition enhanced NF1 (neurofibromin 1) mRNA and protein levels, suggesting that NF1 is one of miR-107 targets in GC. Luciferase reporter assay revealed that miR-107 suppressed NF1 expression by binding to the first potential binding site within the 3′-UTR of NF1 mRNA. mRNA stable assay indicated this binding could result in NF1 mRNA instability, which might contribute to its abnormal protein expression. Functional analyses such as cell growth, transwell migration and invasion assays were used to investigate the role of interaction between miR-107 and its target on GC development and progression. Moreover, We investigated the association between the clinical phenotype and the status of miR-107 expression in 55 GC tissues, and found the high expression contributed to the tumor size and depth of invasion. The results exhibited that down regulation of miR-107 opposed cell growth, migration, and invasion, whereas NF1 repression promoted these phenotypes. Our findings provide a mechanism by which miR-107 regulates NF1 in GC, as well as highlight the importance of interaction between miR-107 and NF1 in GC development and progression.
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Affiliation(s)
- Shizhi Wang
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center For Cancer Personalized Medicine, Nanjing Medical University, Nanjing, China.,Department of Genetic Toxicology, the Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China.,Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, China
| | - Gaoxiang Ma
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center For Cancer Personalized Medicine, Nanjing Medical University, Nanjing, China.,Department of Genetic Toxicology, the Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Haixia Zhu
- Core Laboratory, Nantong Tumor Hospital, Nantong, China
| | - Chunye Lv
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center For Cancer Personalized Medicine, Nanjing Medical University, Nanjing, China.,Department of General Surgery, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing, China
| | - Haiyan Chu
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center For Cancer Personalized Medicine, Nanjing Medical University, Nanjing, China.,Department of Genetic Toxicology, the Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Na Tong
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center For Cancer Personalized Medicine, Nanjing Medical University, Nanjing, China.,Department of Genetic Toxicology, the Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Dongmei Wu
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center For Cancer Personalized Medicine, Nanjing Medical University, Nanjing, China.,Department of Genetic Toxicology, the Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Fulin Qiang
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center For Cancer Personalized Medicine, Nanjing Medical University, Nanjing, China.,Core Laboratory, Nantong Tumor Hospital, Nantong, China
| | - Weida Gong
- Department of General Surgery, Yixing Cancer Hospital, Yixing, China
| | - Qinghong Zhao
- Department of General Surgery, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Guoquan Tao
- Department of General Surgery, Huai-An First People's Hospital Affiliated to Nanjing Medical University, Huai-An, China
| | - Jianwei Zhou
- Department of Molecular Cell Biology and Toxicology, Cancer Center, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Zhengdong Zhang
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center For Cancer Personalized Medicine, Nanjing Medical University, Nanjing, China.,Department of Genetic Toxicology, the Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Meilin Wang
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center For Cancer Personalized Medicine, Nanjing Medical University, Nanjing, China.,Department of Genetic Toxicology, the Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
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da Silva Oliveira KC, Thomaz Araújo TM, Albuquerque CI, Barata GA, Gigek CO, Leal MF, Wisnieski F, Rodrigues Mello Junior FA, Khayat AS, de Assumpção PP, Rodriguez Burbano RM, Smith MC, Calcagno DQ. Role of miRNAs and their potential to be useful as diagnostic and prognostic biomarkers in gastric cancer. World J Gastroenterol 2016; 22:7951-7962. [PMID: 27672290 PMCID: PMC5028809 DOI: 10.3748/wjg.v22.i35.7951] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2016] [Revised: 06/14/2016] [Accepted: 08/01/2016] [Indexed: 02/06/2023] Open
Abstract
Alterations in epigenetic control of gene expression play an important role in many diseases, including gastric cancer. Many studies have identified a large number of upregulated oncogenic miRNAs and downregulated tumour-suppressor miRNAs in this type of cancer. In this review, we provide an overview of the role of miRNAs, pointing to their potential to be useful as diagnostic and/or prognostic biomarkers in gastric cancer. Moreover, we discuss the influence of polymorphisms and epigenetic modifications on miRNA activity.
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Potential Diagnostic, Prognostic and Therapeutic Targets of MicroRNAs in Human Gastric Cancer. Int J Mol Sci 2016; 17:ijms17060945. [PMID: 27322246 PMCID: PMC4926478 DOI: 10.3390/ijms17060945] [Citation(s) in RCA: 99] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2016] [Revised: 06/01/2016] [Accepted: 06/07/2016] [Indexed: 12/11/2022] Open
Abstract
Human gastric cancer (GC) is characterized by a high incidence and mortality rate, largely because it is normally not identified until a relatively advanced stage owing to a lack of early diagnostic biomarkers. Gastroscopy with biopsy is the routine method for screening, and gastrectomy is the major therapeutic strategy for GC. However, in more than 30% of GC surgical patients, cancer has progressed too far for effective medical resection. Thus, useful biomarkers for early screening or detection of GC are essential for improving patients’ survival rate. MicroRNAs (miRNAs) play an important role in tumorigenesis. They contribute to gastric carcinogenesis by altering the expression of oncogenes and tumor suppressors. Because of their stability in tissues, serum/plasma and other body fluids, miRNAs have been suggested as novel tumor biomarkers with suitable clinical potential. Recently, aberrantly expressed miRNAs have been identified and tested for clinical application in the management of GC. Aberrant miRNA expression profiles determined with miRNA microarrays, quantitative reverse transcription-polymerase chain reaction and next-generation sequencing approaches could be used to establish sample specificity and to identify tumor type. Here, we provide an up-to-date summary of tissue-based GC-associated miRNAs, describing their involvement and that of their downstream targets in tumorigenic and biological processes. We examine correlations among significant clinical parameters and prognostic indicators, and discuss recurrence monitoring and therapeutic options in GC. We also review plasma/serum-based, GC-associated, circulating miRNAs and their clinical applications, focusing especially on early diagnosis. By providing insights into the mechanisms of miRNA-related tumor progression, this review will hopefully aid in the identification of novel potential therapeutic targets.
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Fu X, Zhang W, Su Y, Lu L, Wang D, Wang H. MicroRNA-103 suppresses tumor cell proliferation by targeting PDCD10 in prostate cancer. Prostate 2016; 76:543-51. [PMID: 26771762 DOI: 10.1002/pros.23143] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Accepted: 12/15/2015] [Indexed: 12/29/2022]
Abstract
BACKGROUND It is known that microRNAs (miRNAs) are a class of small, non-coding RNAs that act as key regulators in various physiological and pathological processes. However, the regulatory mechanisms involving miRNAs in prostate cancer remain largely unknown. Here, we found that miR-103 is down-regulated in prostate cancer and closely associated with tumor proliferation and migration. Our objective was to explore the role of the miR-103 in prostate cancer. METHODS In this study, we measured miR-103 level using real-time polymerase chain reaction in the human prostate cancer cell lines, including PC-3, LNCap, 22Rv1, DU145, and the normal prostate epithelium cell line RWPE-1, a total of 25 pairs of primary prostate cancer tissues and adjacent non-cancerous tissues (NCTs) were measured also. In addition, over-expression of miR-103 in prostate cancer cell lines to determine the role of miR-103 in prostate cancer. RESULTS We found that miR-103 is down-regulated in prostate cancer and closely associated with tumor proliferation and migration. In addition, over-expression of miR-103 apparently inhibits prostate cancer cell proliferation and migration in vitro. Gain-of-function in vitro experiments further show that miR-103 mimics significantly inhibited prostate cancer cell proliferation, invasion and increase the cell cycle in G1 phase, while promoted cell apoptosis. Subsequent dual-luciferase reporter assay identified one of the proto-oncogene PDCD10 as direct target of miR-103. CONCLUSIONS Therefore, our data collectively demonstrate that miR-103 is a proto-oncogene miRNA that can suppress prostate cancer proliferation and migration by down-regulating the oncogene PDCD10, indicating that miR-103 may represent a new potential diagnostic and therapeutic target for prostate cancer treatment.
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Affiliation(s)
- Xiaoliang Fu
- Departmentof Urology, Xi'an Tangdu Hospital, The Fourth Military Medical University, Xi'an, China
| | - Wei Zhang
- Departmentof Urology, Xi'an Tangdu Hospital, The Fourth Military Medical University, Xi'an, China
| | - Yansheng Su
- The Chinese People's Liberation Army 323 hospital, Xi'an, China
| | - Lu Lu
- Armed Police Hospital of Shaanxi, Xi'an, China
| | - Dong Wang
- Departmentof Urology, Xi'an Tangdu Hospital, The Fourth Military Medical University, Xi'an, China
| | - He Wang
- Departmentof Urology, Xi'an Tangdu Hospital, The Fourth Military Medical University, Xi'an, China
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MiRNA-21 Expression Decreases from Primary Tumors to Liver Metastases in Colorectal Carcinoma. PLoS One 2016; 11:e0148580. [PMID: 26845148 PMCID: PMC4741388 DOI: 10.1371/journal.pone.0148580] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Accepted: 01/19/2016] [Indexed: 01/07/2023] Open
Abstract
Objective Metastasis is the major cause of death in colorectal cancer patients. Expression of certain miRNAs in the primary tumors has been shown to be associated with progression of colorectal cancer and the initiation of metastasis. In this study, we compared miRNA expression in primary colorectal cancer and corresponding liver metastases in order to get an idea of the oncogenic importance of the miRNAs in established metastases. Methods We analyzed the expression of miRNA-21, miRNA-31 and miRNA-373 in corresponding formalin-fixed paraffin-embedded (FFPE) tissue samples of primary colorectal cancer, liver metastasis and healthy tissues of 29 patients by quantitative real-time PCR. Results All three miRNAs were significantly up-regulated in the primary tumor tissues as compared to healthy colon mucosa of the respective patients (p < 0.01). MiRNA-21 and miRNA-31 were also higher expressed in liver metastases as compared to healthy liver tissues (p < 0.01). No significant difference of expression of miRNA-31 and miRNA-373 was observed between primary tumors and metastases. Of note, miRNA-21 expression was significantly reduced in liver metastases as compared to the primary colorectal tumors (p < 0.01). Conclusion In the context of previous studies demonstrating increased miRNA-21 expression in metastatic primary tumors, our findings raise the question whether miRNA-21 might be involved in the initiation but not in the perpetuation and growth of metastases.
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Bhise NS, Chauhan L, Shin M, Cao X, Pounds S, Lamba V, Lamba JK. MicroRNA-mRNA Pairs Associated with Outcome in AML: From In Vitro Cell-Based Studies to AML Patients. Front Pharmacol 2016; 6:324. [PMID: 26858643 PMCID: PMC4729948 DOI: 10.3389/fphar.2015.00324] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Accepted: 12/30/2015] [Indexed: 12/22/2022] Open
Abstract
Cytarabine is the primary chemotherapeutic agent used for treatment of acute myeloid leukemia (AML). Disease relapse after initial remission remains one of the most pressing therapeutic challenges in the treatment of AML. Relapsed disease is often resistant to cytarabine and subsequent salvage therapy is ineffective. Recent studies have shown that some microRNAs (miRNAs) are associated with prognosis, but have not yet explored the role of miRNAs in cellular response to cytarabine. We identified 20 miRNAs that associate with the in vitro cytarabine chemo-sensitivity or apoptotic response of eight AML cell lines. Out of the 20 miRNAs, data on 18 miRNAs was available in AML patients from The Cancer Genome Atlas database. Our stepwise-integrated analyses (step 1 - miRNA-target mRNA that were significantly correlated in AML patients; step 2 - mRNAs from step 1 with significant association with overall survival (OS)) identified 23 unique miRNA-mRNA pairs predictive of OS in AML patients. As expected HOX genes (HOXA9, HOXB7, and HOXA10) were identified to be regulated by miRs as well as predictive of worse OS. Additionally, miR107-Myb, miR-378-granzyme B involved in granzyme signaling and miR10a-MAP4K4 were identified to be predictive of outcome through integrated analysis. Although additional functional validations to establish clinical/pharmacologic importance of miRNA-mRNA pairs are needed, our results from RNA electrophoretic mobility shift assay confirmed binding of miR-10a, miR-378, and miR-107 with their target genes GALNT1, GZMB, and MYB, respectively. Integration of pathogenic and pharmacologically significant miRNAs and miRNA-mRNA relationships identified in our study opens up opportunities for development of targeted/miRNA-directed therapies.
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Affiliation(s)
- Neha S Bhise
- Department of Pharmacotherapy and Translational Research, University of FloridaGainesville, FL, USA; Department of Experimental and Clinical Pharmacology, University of MinnesotaMinneapolis, MN, USA
| | - Lata Chauhan
- Department of Pharmacotherapy and Translational Research, University of Florida Gainesville, FL, USA
| | - Miyoung Shin
- Department of Pharmacotherapy and Translational Research, University of Florida Gainesville, FL, USA
| | - Xueyuan Cao
- Department of Biostatistics, St. Jude Children's Research Hospital Memphis, TN, USA
| | - Stanley Pounds
- Department of Biostatistics, St. Jude Children's Research Hospital Memphis, TN, USA
| | - Vishal Lamba
- Department of Pharmacotherapy and Translational Research, University of Florida Gainesville, FL, USA
| | - Jatinder K Lamba
- Department of Pharmacotherapy and Translational Research, University of Florida Gainesville, FL, USA
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Cui J, Mo J, Luo M, Yu Q, Zhou S, Li T, Zhang Y, Luo W. c-Myc-activated long non-coding RNA H19 downregulates miR-107 and promotes cell cycle progression of non-small cell lung cancer. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2015; 8:12400-12409. [PMID: 26722426 PMCID: PMC4680371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Accepted: 09/25/2015] [Indexed: 06/05/2023]
Abstract
To verify c-Myc can regulate the expression of lncRNA H19 directly in non-small cell lung cancer (NSCLC) and clarify the molecular mechanism on how lncRNA H19 promote the cell cycle progression of NSCLC. The mRNA levels of lncRNA H19 in NSCLC tissues and cells, the adjacent tissues and normal cells were determined by RT-PCR. The expression change of lncRNA H19 in NSCLC cells after transfection with pcDNA3.1-c-Myc or c-Myc-siRNA was determined by RT-PCR, respectively. Targeted role of c-Myc on the promoter of H19 was studied by luciferase reporter assay. Chromosome immune coprecipitation (ChIP) was used to confirm the relationship between c-Myc and H19. MiRNAs that have base-pairing with H19 was predicted by online software. The relationship between H19 and miR-107 was determined by disturbing and overexpressing the expression of H19. The influence of the changes of H19 and miR-107 on cell cycle progression was determined by flow cytometry. The mRNA levels of lncRNA H19 in NSCLC tissues and cells were significantly higher than the adjacent tissues and normal cells, respectively. The expression of H19 increased or decreased accordingly with the overexpression and knockdown of c-Myc. The activity of the promoter of H19 was strengthened by c-Myc. While the expression of miR-107 increased or decreased with the overexpression and knockdown of H19, respectively. The number of cells in G2/M stage decreased significantly with the knockdown of H19 and miR-107 compared with the control group. Our study demonstrates that lncRNA H19, which is induced by c-Myc, is up-regulated in NSCLC. H19 influences the mitotic progression of NSCLC cell lines.
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Affiliation(s)
- Jiandong Cui
- Department of Oncology, 303 Hospital of Chinese People’s Liberation ArmyNanning 530021, P.R. China
| | - Juanmei Mo
- Department of Oncology, 303 Hospital of Chinese People’s Liberation ArmyNanning 530021, P.R. China
| | - Min Luo
- Department of Oncology, 303 Hospital of Chinese People’s Liberation ArmyNanning 530021, P.R. China
| | - Qitao Yu
- Department of Chemotherapy, Affiliated Tumor Hospital of Guangxi Medical UniversityNanning 530021, P.R. China
| | - Shaozhang Zhou
- Department of Chemotherapy, Affiliated Tumor Hospital of Guangxi Medical UniversityNanning 530021, P.R. China
| | - Tao Li
- Department of Oncology, 303 Hospital of Chinese People’s Liberation ArmyNanning 530021, P.R. China
| | - Yu Zhang
- Department of Oncology, 303 Hospital of Chinese People’s Liberation ArmyNanning 530021, P.R. China
| | - Weiling Luo
- Department of Oncology, 303 Hospital of Chinese People’s Liberation ArmyNanning 530021, P.R. China
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Wang Y, Mao G, Lv Y, Huang Q, Wang G. MicroRNA-181b stimulates inflammation via the nuclear factor-κB signaling pathway in vitro. Exp Ther Med 2015; 10:1584-1590. [PMID: 26622531 DOI: 10.3892/etm.2015.2702] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2014] [Accepted: 07/29/2015] [Indexed: 01/11/2023] Open
Abstract
Acute lung injury (ALI) is characterized by severe lung edema and an increase in the inflammatory reaction. Considerable evidence has indicated that microRNAs (miRNAs or miRs) are involved in various human diseases; however, the expression profile and function of miRNAs in ALI have been rarely reported. The present study used miRNA microarray and reverse transcription-quantitative polymerase chain reaction to demonstrate that miR-181b is the one of the most significantly upregulated miRNA after lipopolysaccharide (LPS) stimulation in human bronchial epithelial cells, BEAS-2B. To elaborate the role of miR-181b in ALI, an assay was performed to investigate the overexpression of miR-181b in BEAS-2B cells, and the expression of inflammatory factors was then analyzed. The overexpression of miR-181b resulted in the induction of an increment in interleukin (IL)-6 levels. p65 was identified to be a primary component of NF-κB, since it was upregulated in the miR-181b overexpression in the BEAS-2B cells, while pyrrolidine dithiocarbamate, a specific inhibitor of NF-κB, was found to be able to abrogate the upregulation of the expression of p65. In conclusion, the findings of the present study suggested that miR-181b may be involved in the process of LPS-induced inflammation in BEAS-2B cells by activating the NF-κB signaling pathway, which implies that it may serve as a potential therapeutic target for ALI.
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Affiliation(s)
- Yazhen Wang
- Zhejiang Provincial Key Laboratory of Geriatrics and Geriatrics Institute of Zhejiang, Zhejiang Hospital, Hangzhou, Zhejiang 310013, P.R. China
| | - Genxiang Mao
- Zhejiang Provincial Key Laboratory of Geriatrics and Geriatrics Institute of Zhejiang, Zhejiang Hospital, Hangzhou, Zhejiang 310013, P.R. China
| | - Yuandong Lv
- Zhejiang Provincial Key Laboratory of Geriatrics and Geriatrics Institute of Zhejiang, Zhejiang Hospital, Hangzhou, Zhejiang 310013, P.R. China
| | - Qingdong Huang
- Zhejiang Provincial Key Laboratory of Geriatrics and Geriatrics Institute of Zhejiang, Zhejiang Hospital, Hangzhou, Zhejiang 310013, P.R. China
| | - Guofu Wang
- Zhejiang Provincial Key Laboratory of Geriatrics and Geriatrics Institute of Zhejiang, Zhejiang Hospital, Hangzhou, Zhejiang 310013, P.R. China
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Zhang L, Wei P, Shen X, Zhang Y, Xu B, Zhou J, Fan S, Hao Z, Shi H, Zhang X, Kong R, Xu L, Gao J, Zou D, Liang C. MicroRNA Expression Profile in Penile Cancer Revealed by Next-Generation Small RNA Sequencing. PLoS One 2015; 10:e0131336. [PMID: 26158897 PMCID: PMC4497725 DOI: 10.1371/journal.pone.0131336] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Accepted: 06/01/2015] [Indexed: 12/14/2022] Open
Abstract
Penile cancer (PeCa) is a relatively rare tumor entity but possesses higher morbidity and mortality rates especially in developing countries. To date, the concrete pathogenic signaling pathways and core machineries involved in tumorigenesis and progression of PeCa remain to be elucidated. Several studies suggested miRNAs, which modulate gene expression at posttranscriptional level, were frequently mis-regulated and aberrantly expressed in human cancers. However, the miRNA profile in human PeCa has not been reported before. In this present study, the miRNA profile was obtained from 10 fresh penile cancerous tissues and matched adjacent non-cancerous tissues via next-generation sequencing. As a result, a total of 751 and 806 annotated miRNAs were identified in normal and cancerous penile tissues, respectively. Among which, 56 miRNAs with significantly different expression levels between paired tissues were identified. Subsequently, several annotated miRNAs were selected randomly and validated using quantitative real-time PCR. Compared with the previous publications regarding to the altered miRNAs expression in various cancers and especially genitourinary (prostate, bladder, kidney, testis) cancers, the most majority of deregulated miRNAs showed the similar expression pattern in penile cancer. Moreover, the bioinformatics analyses suggested that the putative target genes of differentially expressed miRNAs between cancerous and matched normal penile tissues were tightly associated with cell junction, proliferation, growth as well as genomic instability and so on, by modulating Wnt, MAPK, p53, PI3K-Akt, Notch and TGF-β signaling pathways, which were all well-established to participate in cancer initiation and progression. Our work presents a global view of the differentially expressed miRNAs and potentially regulatory networks of their target genes for clarifying the pathogenic transformation of normal penis to PeCa, which research resource also provides new insights into future investigations aimed to explore the in-depth mechanisms of miRNAs and other small RNAs including piRNAs in penile carcinogenesis regulation and effective target-specific theragnosis.
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Affiliation(s)
- Li Zhang
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
- Institute of Urology, Anhui Medical University, Hefei, Anhui, China
| | - Pengfei Wei
- School of Life Sciences, University of Science and Technology of China, Hefei, Anhui, China
| | - Xudong Shen
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
- Institute of Urology, Anhui Medical University, Hefei, Anhui, China
| | - Yuanwei Zhang
- School of Life Sciences, University of Science and Technology of China, Hefei, Anhui, China
| | - Bo Xu
- Center for Reproductive Medicine, Anhui Provincial Hospital Affiliated to Anhui Medical University, Hefei, Anhui, China
| | - Jun Zhou
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
- Institute of Urology, Anhui Medical University, Hefei, Anhui, China
| | - Song Fan
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
- Institute of Urology, Anhui Medical University, Hefei, Anhui, China
| | - Zongyao Hao
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
- Institute of Urology, Anhui Medical University, Hefei, Anhui, China
| | - Haoqiang Shi
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
- Institute of Urology, Anhui Medical University, Hefei, Anhui, China
| | - Xiansheng Zhang
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
- Institute of Urology, Anhui Medical University, Hefei, Anhui, China
| | - Rui Kong
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
- Institute of Urology, Anhui Medical University, Hefei, Anhui, China
| | - Lingfan Xu
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
- Institute of Urology, Anhui Medical University, Hefei, Anhui, China
| | - Jingjing Gao
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
- Institute of Urology, Anhui Medical University, Hefei, Anhui, China
| | - Duohong Zou
- Key Laboratory of Oral Diseases Research of Anhui Province, Stomatologic College, Anhui Medical University, Hefei, Anhui, China
- * E-mail: (CZL); (DHZ)
| | - Chaozhao Liang
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
- Institute of Urology, Anhui Medical University, Hefei, Anhui, China
- * E-mail: (CZL); (DHZ)
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Jiang C, Chen X, Alattar M, Wei J, Liu H. MicroRNAs in tumorigenesis, metastasis, diagnosis and prognosis of gastric cancer. Cancer Gene Ther 2015; 22:291-301. [DOI: 10.1038/cgt.2015.19] [Citation(s) in RCA: 91] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2015] [Revised: 03/15/2015] [Accepted: 03/16/2015] [Indexed: 02/07/2023]
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Zhang M, Wang X, Li W, Cui Y. miR-107 and miR-25 simultaneously target LATS2 and regulate proliferation and invasion of gastric adenocarcinoma (GAC) cells. Biochem Biophys Res Commun 2015; 460:806-12. [PMID: 25824045 DOI: 10.1016/j.bbrc.2015.03.110] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2015] [Accepted: 03/20/2015] [Indexed: 12/12/2022]
Abstract
Although a series of oncogenes and tumor suppressors were identified in the pathological development of gastric adenocarcinoma (GAC), the underlying molecule mechanism were still not fully understood. The current study explored the expression profile of miR-107 and miR-25 in GAC patients and their downstream regulative network. qRT-PCR analysis was performed to quantify the expression of these two miRNAs in serum samples from both patients and healthy controls. Dual luciferase assay was conducted to verify their putative bindings with LATS2. MTT assay, cell cycle assay and transwell assay were performed to explore how miR-107 and miR-25 regulate proliferation and invasion of gastric cancer cells. Findings of this study demonstrated that total miR-107 or miR-25 expression might be overexpressed in gastric cancer patients and they can simultaneously and synchronically regulate LATS2 expression, thereby affecting gastric cancer cell growth and invasion. Therefore, the miR-25/miR-107-LATS2 axis might play an important role in proliferation and invasion of the gastric cancer cells.
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Affiliation(s)
- Mingjun Zhang
- Cancer Center, The Second Affiliated Hospital of Anhui Medical University, Hefei 230601, China
| | - Xiaolei Wang
- Cancer Center, The Second Affiliated Hospital of Anhui Medical University, Hefei 230601, China
| | - Wanhu Li
- MRI Room of Shandong Cancer Hospital & Institute, Jinan 250117, China
| | - Yongchun Cui
- Drug Clinical Trial Institution of Shandong Cancer Hospital & Institute, #440, Jiyan Road, Jinan 250117, China.
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Xu N, Li Z, Yu Z, Yan F, Liu Y, Lu X, Yang W. MicroRNA-33b suppresses migration and invasion by targeting c-Myc in osteosarcoma cells. PLoS One 2014; 9:e115300. [PMID: 25546234 PMCID: PMC4278906 DOI: 10.1371/journal.pone.0115300] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2014] [Accepted: 11/21/2014] [Indexed: 12/13/2022] Open
Abstract
MicroRNAs have emerged as fundamental regulators in gene expression through silencing gene expression at the post-transcriptional and translational levels. Osteosarcoma is the most common type of primary malignant bone tumor and is characterized by complex genetic changes and resistance to conventional treatments. In our study, the role of miR-33b in the progression and metastasis of osteosarcoma was investigated. Our results showed that miR-33b was significantly downregulated in osteosarcoma tissue and cell lines. Overexpression of miR-33b significantly inhibited cell proliferation, migration, and invasion in the MG-63 osteosarcoma cell line. Moreover, we also showed that c-Myc was negatively regulated by miR-33b at the posttranscriptional level, via a specific target site within the 3′UTR. Overexpression of c-Myc impaired miR-33b-induced inhibition of proliferation and invasion in osteosarcoma cells. The expression of c-Myc was frequently downregulated in osteosarcoma tumors and cell lines and was inversely correlated with miR-33b expression. Thus, our findings suggest that miR-33b inhibits osteosarcoma cells migration and invasion by targeting the c-Myc gene, acting as tumor suppressor. The findings of this study contribute to current understanding of the functions of miR-33b in osteosarcoma.
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Affiliation(s)
- Ning Xu
- Department of Orthopedic Surgery, The First Affiliated Hospital of Harbin Medical University, No. 23, Youzheng St, Nangang, Harbin, Heilongjiang, China
| | - Zimu Li
- Department of Orthopedic Surgery, The First Affiliated Hospital of Harbin Medical University, No. 23, Youzheng St, Nangang, Harbin, Heilongjiang, China
| | - Zhange Yu
- Department of Orthopedic Surgery, The First Affiliated Hospital of Harbin Medical University, No. 23, Youzheng St, Nangang, Harbin, Heilongjiang, China
| | - Feng Yan
- Department of Orthopedic Surgery, The First Affiliated Hospital of Harbin Medical University, No. 23, Youzheng St, Nangang, Harbin, Heilongjiang, China
| | - Yang Liu
- Department of Orthopedic Surgery, The First Affiliated Hospital of Harbin Medical University, No. 23, Youzheng St, Nangang, Harbin, Heilongjiang, China
| | - Xiaofeng Lu
- Department of Orthopedic Surgery, The First Affiliated Hospital of Harbin Medical University, No. 23, Youzheng St, Nangang, Harbin, Heilongjiang, China
| | - Weiliang Yang
- Department of Orthopedic Surgery, The First Affiliated Hospital of Harbin Medical University, No. 23, Youzheng St, Nangang, Harbin, Heilongjiang, China
- * E-mail:
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Wang X, Li J, Dong K, Lin F, Long M, Ouyang Y, Wei J, Chen X, Weng Y, He T, Zhang H. Tumor suppressor miR-34a targets PD-L1 and functions as a potential immunotherapeutic target in acute myeloid leukemia. Cell Signal 2014; 27:443-52. [PMID: 25499621 DOI: 10.1016/j.cellsig.2014.12.003] [Citation(s) in RCA: 245] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Revised: 11/19/2014] [Accepted: 12/04/2014] [Indexed: 12/14/2022]
Abstract
miRNA (miR) 34a has been shown to modulate critical gene transcripts involved in tumorigenesis, but its role in tumor-mediated immunosuppression is largely unknown. PD-L1 plays an important role in immune responses, however, presently its transcriptional regulatory mechanisms are not well understood. In the present study, we analyzed the expression of PD-L1 and miR-34a in 44 acute myeloid leukemia (AML) samples, and observed an inverse correlation between PD-L1 and miR-34a expression. Overexpression of miR-34a in HL-60 and Kasumi-1 cells blocked PD-L1 expression, and reduced PD-L1 surface expression. Using luciferase reporter assay and mutagenesis, we identified miR-34a as a putative binder of the PD-L1-3'UTR. Surface expression of PD-L1 induced by chemotherapeutic agents could also be reversed by miR-34a; furthermore, PD-L1 specific T cell apoptosis was reduced as well following miR-34a transfection. We also found that there is a positive feedback between PD-L1 expression and AKT activation. Our data suggest that miR-34a can regulate PD-L1 expression by targeting PD-L1 mRNA, and our present findings shed new light on the complex regulation of PD-L1 in human tumors, and on miR-34a in cancer immuno-based therapy.
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Affiliation(s)
- Xi Wang
- Department of Medical Laboratory and Research Center, Tangdu Hospital, Fourth Military Medical University, Xi'an, PR China
| | - Jinge Li
- Department of Medical Laboratory and Research Center, Tangdu Hospital, Fourth Military Medical University, Xi'an, PR China
| | - Ke Dong
- Department of Medical Laboratory and Research Center, Tangdu Hospital, Fourth Military Medical University, Xi'an, PR China
| | - Fang Lin
- Department of Medical Laboratory and Research Center, Tangdu Hospital, Fourth Military Medical University, Xi'an, PR China
| | - Min Long
- Department of Medical Laboratory and Research Center, Tangdu Hospital, Fourth Military Medical University, Xi'an, PR China
| | - Yongri Ouyang
- Department of Medical Laboratory and Research Center, Tangdu Hospital, Fourth Military Medical University, Xi'an, PR China
| | - Junxia Wei
- Department of Medical Laboratory and Research Center, Tangdu Hospital, Fourth Military Medical University, Xi'an, PR China
| | - Xi Chen
- Department of Medical Laboratory and Research Center, Tangdu Hospital, Fourth Military Medical University, Xi'an, PR China
| | - Yuanyuan Weng
- Department of Medical Laboratory and Research Center, Tangdu Hospital, Fourth Military Medical University, Xi'an, PR China
| | - Ting He
- Department of Medical Laboratory and Research Center, Tangdu Hospital, Fourth Military Medical University, Xi'an, PR China
| | - Huizhong Zhang
- Department of Medical Laboratory and Research Center, Tangdu Hospital, Fourth Military Medical University, Xi'an, PR China.
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