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Bagheri A, Khorram Khorshid HR, Mowla SJ, Mohebbi HA, Mohammadian A, Yaseri M, Solaymani-Dodaran M, Sherafatian M, Tavallaie M. Altered miR-223 Expression in Sputum for Diagnosis of Non-Small Cell Lung Cancer. Avicenna J Med Biotechnol 2017; 9:189-195. [PMID: 29090068 PMCID: PMC5650736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND Diagnosis of Non-small Cell Lung Cancer (NSCLC) at an early stage is a daunting challenge due to the deficiency of specific noninvasive markers. MicroRNAs (miRNAs) play important roles in the initiation and progression of NSCLC. Measuring miRNA expression levels could provide a potential approach for the diagnosis of NSCLC. Our goals were to examine miR-223, miR-212, miR-192, miR-3074, SNORD33 and SNORD37 expression levels in tissue and sputum of NSCLC patients and cancer free subjects for molecular diagnosis of NSCLC. METHODS Relative expressions of miR-223, miR-212, miR-192, miR-3074, SNORD33 and SNORD37 were examined with quantitative real-time RT-PCR assay in tissue and sputum obtained from 17 NSCLC patients and 17 controls. RESULTS miR-3074 was upregulated in tissue samples of NSCLC patients compared with control group. miR-223 was upregulated, miR-212 and SNORD37 were downergulated in sputum samples of patients compared with controls. miR-223 quantification produced 82% sensitivity and 95% specificity with areas under the ROC curve at 0.90 in detection of NSCLC. CONCLUSION miR-223 clearly discriminated cancer patients from cancer-free subjects and our results suggest that miR-223 could be a diagnostic useful biomarker. The measurement of altered miRNA expression in sputum samples manifested the potential noninvasive approach for detection of lung cancer.
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Affiliation(s)
- Abouzar Bagheri
- Genetic Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | | | - Seyed Javad Mowla
- Department of Molecular Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Hassan Ali Mohebbi
- Trauma Research Center, Baghiyatallah University of Medical Sciences, Tehran, Iran
| | - Azam Mohammadian
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Mehdi Yaseri
- Department of Epidemiology and Biostatistics, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Masih Sherafatian
- Department of Molecular Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Mahmood Tavallaie
- Human Genetic Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran,Corresponding author: Mahmood Tavallaie, Ph.D., Human Genetic Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran, Tel: +98 9121055684, Fax: +98 21 88053609, E-mail:
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Barbollat-Boutrand L, Joly-Tonetti N, Dos Santos M, Metral E, Boher A, Masse I, Berthier-Vergnes O, Bertolino P, Damour O, Lamartine J. MicroRNA-23b-3p regulates human keratinocyte differentiation through repression of TGIF1 and activation of the TGF-ß-SMAD2 signalling pathway. Exp Dermatol 2016; 26:51-57. [DOI: 10.1111/exd.13119] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/13/2016] [Indexed: 12/20/2022]
Affiliation(s)
- Laetitia Barbollat-Boutrand
- Université de Lyon; Lyon France
- Université Lyon 1; Lyon France
- CNRS; UMR5534; Centre de Génétique et de Physiologie Moléculaires et Cellulaires; Villeurbanne France
| | - Nicolas Joly-Tonetti
- Université de Lyon; Lyon France
- Université Lyon 1; Lyon France
- CNRS; UMR5534; Centre de Génétique et de Physiologie Moléculaires et Cellulaires; Villeurbanne France
| | | | - Elodie Metral
- Banque de Tissus et Cellules; Hospices Civiles de Lyon; Lyon France
| | | | - Ingrid Masse
- Université de Lyon; Lyon France
- Université Lyon 1; Lyon France
- CNRS; UMR5534; Centre de Génétique et de Physiologie Moléculaires et Cellulaires; Villeurbanne France
| | - Odile Berthier-Vergnes
- Université de Lyon; Lyon France
- Université Lyon 1; Lyon France
- CNRS; UMR5534; Centre de Génétique et de Physiologie Moléculaires et Cellulaires; Villeurbanne France
| | | | - Odile Damour
- Banque de Tissus et Cellules; Hospices Civiles de Lyon; Lyon France
| | - Jérôme Lamartine
- Université de Lyon; Lyon France
- Université Lyon 1; Lyon France
- CNRS; UMR5534; Centre de Génétique et de Physiologie Moléculaires et Cellulaires; Villeurbanne France
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Zhu J, Qi Y, Wu J, Shi M, Feng J, Chen L. Evaluation of plasma microRNA levels to predict insensitivity of patients with advanced lung adenocarcinomas to pemetrexed and platinum. Oncol Lett 2016; 12:4829-4837. [PMID: 28101226 DOI: 10.3892/ol.2016.5295] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Accepted: 09/09/2016] [Indexed: 02/07/2023] Open
Abstract
Pemetrexed combined with platinum is a first-line therapy used to treat patients with advanced non-small cell lung cancer (NSCLC) that exhibit negative or unknown epidermal growth factor receptor (EGFR) mutational status or anaplastic lymphoma kinase (ALK) rearrangements. Lung adenocarcinoma (LAC) is the primary type of NSCLC. In order to prevent overtreatment, it is necessary to identify patients with LAC who may not benefit from certain chemotherapies. Patients recruited in the present study (n=129) were diagnosed with advanced LAC and received first-line pemetrexed and platinum-based chemotherapy. A microRNA (miR) microarray was used to screen the plasma miR expression profiles in a screening set of eight patients prior to and following treatment. Specifically, plasma miR-25, miR-21, miR-27b, miR-326, miR-483-5p and miR-920 were selected for reverse transcription-quantitative polymerase chain reaction analysis in a training set (n=44) prior to treatment. The screening and training set patients were all non-smokers with no prior history of serious or chronic disease. The ∆∆Cq values of these miRs were compared between the group that showed benefit from pemetrexed and platinum treatment and the group that did not. Consequently, the ∆∆Cq values of miR-25, miR-21, miR-27b and miR-326 were further determined in a validation set (n=77). The results of the present study demonstrate that plasma expression levels of miR-25, miR-21, miR-27b and miR-326, in the training and validation sets prior to treatment, were significantly different between the benefit and non-benefit groups (P≤0.001). The expression of miR-25, miR-21, miR-27b and miR-326 was upregulated in the non-benefit group and this elevation was positively correlated with decreased progression-free survival (PFS; P≤0.001). In addition, the predictive power of each miR was evaluated through receiver operating characteristic curves, in which miR-25 exhibited the highest degree of accuracy (area under the curve, 0.926; 95% confidence interval, 0.881-0.971). These results indicate that overexpression of plasma miR-25, miR-21, miR-27b and miR-326, prior to treatment, in patients with advanced LAC is predictive of non-benefit from first-line pemetrexed and platinum-based chemotherapy, and is associated with decreased PFS. Among these four miRs, miR-25 exhibited the highest degree of accuracy in predicting insensitivity, suggesting it is the most promising biomarker.
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Affiliation(s)
- Jinghua Zhu
- Department of Medical Oncology, Jiangsu Cancer Institute and Hospital, Nanjing, Jiangsu 210002, P.R. China; School of Medicine, Nanjing University, Nanjing, Jiangsu 210002, P.R. China
| | - Yuhua Qi
- Key Laboratories of Enteric Pathogenic Microbiology, Ministry of Health, Microbiological Laboratory, Jiangsu Center for Disease Prevention and Control, Nanjing, Jiangsu 210002, P.R. China
| | - Jianzhong Wu
- Research Center of Clinical Oncology, Jiangsu Cancer Institute and Hospital, Nanjing, Jiangsu 210002, P.R. China
| | - Meiqi Shi
- Department of Medical Oncology, Jiangsu Cancer Institute and Hospital, Nanjing, Jiangsu 210002, P.R. China
| | - Jifeng Feng
- Department of Medical Oncology, Jiangsu Cancer Institute and Hospital, Nanjing, Jiangsu 210002, P.R. China
| | - Longbang Chen
- School of Medicine, Nanjing University, Nanjing, Jiangsu 210002, P.R. China; Department of Medical Oncology, Jinling Hospital, Nanjing, Jiangsu 210002, P.R. China
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Sun XF, Sun JP, Hou HT, Li K, Liu X, Ge QX. MicroRNA-27b exerts an oncogenic function by targeting Fbxw7 in human hepatocellular carcinoma. Tumour Biol 2016; 37:15325-15332. [PMID: 27704356 DOI: 10.1007/s13277-016-5444-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Accepted: 09/23/2016] [Indexed: 10/20/2022] Open
Abstract
Aberrant expression of microRNAs (miRNAs) plays fundamental effect on the pathogenesis of hepatocellular carcinoma (HCC). MiR-27b was previously found to play important roles in human cancers. However, its expression status, clinical significance, and biological functions in HCC remain largely unclear. The expression status of miR-27b in HCC specimens and cells were determined with qRT-PCR. MTT, 5-bromodeoxyuridine (BrdU) proliferation assays, and flow cytometry analysis were carried out to assay proliferation, cell cycle, and apoptosis. A subcutaneous model was used to evaluated the HCC tumor growth in vivo. The putative target gene of miR-27b was disclosed by TargetScan and a luciferase reporter assay. The levels of miR-27b were overexpressed in HCC. Overexpression of miR-27b was correlated with adverse prognostic features and reduced survival rate. Inhibition of miR-27b in SMMC-7721 cells remarkably suppressed proliferative ability and cell-cycle progression while enhanced apoptosis. In contrast, miR-27b overexpression resulted in prominent increased proliferation and process of cell cycle and reduced apoptosis of Hep3B cells. In vivo studies showed that knockdown of miR-27b inhibited the in vivo growth of SMMC-7721 cells in mouse xenograft model. Furthermore, we confirmed that Fbxw7 was directly regulated by miR-27b and mediated the roles of miR-27b in HCC. We suggest that miR-27b serves as an oncogenic miRNA in HCC by modulating proliferation, cell-cycle progression, and apoptosis, and its oncogenic effect is mediated by its downstream target gene, Fbxw7.
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Affiliation(s)
- Xin-Fang Sun
- Department of Gastroenterology, Huaihe Hospital, Henan University, No. 8 Baobei Road, Kaifeng, Henan Province, 475000, China
| | - Jin-Ping Sun
- Department of Gastroenterology, Huaihe Hospital, Henan University, No. 8 Baobei Road, Kaifeng, Henan Province, 475000, China
| | - Hong-Tao Hou
- Department of Gastroenterology, Huaihe Hospital, Henan University, No. 8 Baobei Road, Kaifeng, Henan Province, 475000, China
| | - Ke Li
- Department of Gastroenterology, Huaihe Hospital, Henan University, No. 8 Baobei Road, Kaifeng, Henan Province, 475000, China
| | - Xin Liu
- Department of Gastroenterology, Huaihe Hospital, Henan University, No. 8 Baobei Road, Kaifeng, Henan Province, 475000, China
| | - Quan-Xing Ge
- Department of Gastroenterology, Huaihe Hospital, Henan University, No. 8 Baobei Road, Kaifeng, Henan Province, 475000, China.
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Kobayashi T. Understanding the biology of urothelial cancer metastasis. Asian J Urol 2016; 3:211-222. [PMID: 29264189 PMCID: PMC5730871 DOI: 10.1016/j.ajur.2016.09.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2016] [Revised: 09/02/2016] [Accepted: 09/08/2016] [Indexed: 12/29/2022] Open
Abstract
Management of unresectable urothelial cancer (UC) has been a clinical challenge for decades. While drug resistance is a key issue, precise understanding of biology of UC metastasis is another challenge for the improvement of treatment outcome of UC patients. Introduction of the cell biology concepts including epithelial-mesenchymal transition (EMT) and cancer stemness seems to explain UC metastasis. Molecular genetics based on gene expression profiling, next generation sequencing, and explosion of non-coding RNA world has opened the door to intrinsic molecular subtyping of UC. Next steps include, based on the recently accumulated understanding, the establishment of novel disease models representing UC metastasis in various experimental platforms, particularly in vivo animal systems. Indeed, novel knowledge molecular genetics has not been fully linked to the modeling of UC metastasis. Further understanding of bladder carcinogenesis is needed particularly with regard to cell of origin related to tumor characteristics including driver gene alterations, pathological differentiations, and metastatic ability. Then we will be able to establish better disease models, which will consequently lead us to further understanding of biology and eventually the development of novel therapeutic strategies for UC metastasis.
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56
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Yonemori M, Seki N, Yoshino H, Matsushita R, Miyamoto K, Nakagawa M, Enokida H. Dual tumor-suppressors miR-139-5p and miR-139-3p targeting matrix metalloprotease 11 in bladder cancer. Cancer Sci 2016; 107:1233-42. [PMID: 27355528 PMCID: PMC5021030 DOI: 10.1111/cas.13002] [Citation(s) in RCA: 106] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Revised: 06/21/2016] [Accepted: 06/29/2016] [Indexed: 12/14/2022] Open
Abstract
Our recent study of the microRNA (miRNA) expression signature of bladder cancer (BC) by deep‐sequencing revealed that two miRNA, microRNA‐139‐5p/microRNA‐139‐3p were significantly downregulated in BC tissues. The aim of this study was to investigate the functional roles of these miRNA and their modulation of cancer networks in BC cells. Functional assays of BC cells were performed using transfection of mature miRNA or small interfering RNA (siRNA). Genome‐wide gene expression analysis, in silico analysis and dual‐luciferase reporter assays were applied to identify miRNA targets. The associations between the expression of miRNA and its targets and overall survival were estimated by the Kaplan–Meier method. Gain‐of‐function studies showed that miR‐139‐5p and miR‐139‐3p significantly inhibited cell migration and invasion by BC cells. The matrix metalloprotease 11 gene (MMP11) was identified as a direct target of miR‐139‐5p and miR‐139‐3p. Kaplan–Meier survival curves showed that higher expression of MMP11 predicted shorter survival of BC patients (P = 0.029). Downregulated miR‐139‐5p or miR‐139‐3p enhanced BC cell migration and invasion in BC cells. MMP11 was directly regulated by these miRNA and might be a good prognostic marker for survival of BC patients.
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Affiliation(s)
- Masaya Yonemori
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Naohiko Seki
- Department of Functional Genomics, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Hirofumi Yoshino
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Ryosuke Matsushita
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Kazutaka Miyamoto
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Masayuki Nakagawa
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Hideki Enokida
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan.
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Fukumoto I, Koshizuka K, Hanazawa T, Kikkawa N, Matsushita R, Kurozumi A, Kato M, Okato A, Okamoto Y, Seki N. The tumor-suppressive microRNA-23b/27b cluster regulates the MET oncogene in oral squamous cell carcinoma. Int J Oncol 2016; 49:1119-29. [PMID: 27573718 DOI: 10.3892/ijo.2016.3602] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Accepted: 06/06/2016] [Indexed: 11/06/2022] Open
Abstract
Our recent studies of microRNA (miRNA) expression signatures in human cancers revealed that two clustered miRNAs, microRNA-23b (miR-23b) and microRNA-27b (miR‑27b), were significantly reduced in cancer tissues. Few reports have provided functional analyses of these clustered miRNAs in oral squamous cell carcinoma (OSCC). The aim of this study was to investigate the functional significance of miR-23b and miR-27b in OSCC and to identify novel miR-23b/27b-mediated cancer pathways and target genes involved in OSCC oncogenesis and metastasis. Expression levels of miR-23b and miR-27b were significantly reduced in OSCC specimens. Restoration of miR-23b or miR-27b in cancer cells revealed that both miRNAs significantly inhibited cancer cell migration and invasion. Our in silico analyses and luciferase reporter assays showed that the receptor tyrosine kinase MET, was directly regulated by these miRNAs. Moreover, downregulating the MET gene by use of siRNA significantly inhibited cell migration and invasion by OSCC cells. The identification of novel molecular pathways regulated by miR-23b and miR-27b may lead to a better understanding of the oncogenesis and metastasis of this disease.
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Affiliation(s)
- Ichiro Fukumoto
- Department of Functional Genomics, Chiba University Graduate School of Medicine, Chuo-ku, Chiba 260-8670, Japan
| | - Keiichi Koshizuka
- Department of Functional Genomics, Chiba University Graduate School of Medicine, Chuo-ku, Chiba 260-8670, Japan
| | - Toyoyuki Hanazawa
- Department of Otorhinolaryngology/Head and Neck Surgery, Chiba University Graduate School of Medicine, Chuo-ku, Chiba 260-8670, Japan
| | - Naoko Kikkawa
- Department of Otorhinolaryngology/Head and Neck Surgery, Chiba University Graduate School of Medicine, Chuo-ku, Chiba 260-8670, Japan
| | - Ryosuke Matsushita
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima-shi, Kagoshima 890-8520, Japan
| | - Akira Kurozumi
- Department of Functional Genomics, Chiba University Graduate School of Medicine, Chuo-ku, Chiba 260-8670, Japan
| | - Mayuko Kato
- Department of Functional Genomics, Chiba University Graduate School of Medicine, Chuo-ku, Chiba 260-8670, Japan
| | - Atsushi Okato
- Department of Functional Genomics, Chiba University Graduate School of Medicine, Chuo-ku, Chiba 260-8670, Japan
| | - Yoshitaka Okamoto
- Department of Otorhinolaryngology/Head and Neck Surgery, Chiba University Graduate School of Medicine, Chuo-ku, Chiba 260-8670, Japan
| | - Naohiko Seki
- Department of Functional Genomics, Chiba University Graduate School of Medicine, Chuo-ku, Chiba 260-8670, Japan
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Shen ED, Liu B, Yu XS, Xiang ZF, Huang HY. The effects of miR-1207-5p expression in peripheral blood on cisplatin-based chemosensitivity of primary gallbladder carcinoma. Onco Targets Ther 2016; 9:3633-42. [PMID: 27382301 PMCID: PMC4920227 DOI: 10.2147/ott.s101310] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
OBJECTIVE The aim of this study was to investigate the association between miR-1207-5p expression in peripheral blood and the chemosensitivity of primary gallbladder carcinoma (PGBC). METHODS A total of 85 patients with PGBC undergoing preoperative chemotherapy were divided into effective (n=18) and ineffective (n=67) groups. Another 70 healthy individuals were selected as the control group. An miR-1207-5p mimic (mimic group), an inhibitor (inhibitor group), and a negative control (NC group) sequence were transfected into human gallbladder carcinoma GBC-SD cells. Real-time quantitative polymerase chain reaction was used to determine miR-1207-5p expression. After 48 hours of cisplatin treatment, CCK-8 method was used to detect cell proliferation and flow cytometry were performed to examine cell apoptosis. RESULTS miR-1207-5p expression in peripheral blood was significantly associated with tumor node metastasis staging of PGBC (P<0.05). Before chemotherapy, miR-1207-5p expression in patients was higher than in healthy individuals (P<0.05). After chemotherapy, the effective group had lower miR-1207-5p expression than the ineffective group (P<0.05). The rates of positive expression of Ki67 protein in the effective group were significantly lower than those in the ineffective group (P<0.05). Receiver operating characteristic curves showed that the area under curve, sensitivity, and specificity of miR-1207-5p used to diagnose PGBC were 0.898, 77.6%, and 97.1% at a cutoff of 1.470, respectively. After 48 hours of cisplatin treatment, compared with the NC group and nontransfected (non-T) group, the mimic group had decreased rates of cell inhibition and apoptosis, but the inhibitor group had increased rates (all P<0.05). The expression levels of caspase3 protein were increased in the mimic group and decreased in the inhibitor group. Cell survival rates in the mimic group at different time points after cisplatin treatment were significantly higher than the corresponding rates in the NC and non-T groups, whereas the cell survival rates in the inhibitor group were significantly lower than the rates in the NC and non-T groups (all P<0.05). The concentration and action time of cisplatin were negatively associated with the cell survival rate in each group (all P<0.05). CONCLUSION Cisplatin-based chemosensitivity of PGBC increased as expression of miR-1207-5p in peripheral blood declined. Thus, miR-1207-5p appears to be a promising and novel chemosensitizer for the treatment of PGBC.
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Affiliation(s)
- Er-Dong Shen
- Department of Oncology, The First People's Hospital of Yueyang, Yueyang
| | - Bo Liu
- Department of General Surgery, The Second Xiangya Hospital of Central South University, Changsha
| | - Xin-Shuang Yu
- Department of Radiotherapy, Qianfou Mount Hospital of Shandong Province, Jinan
| | - Zhen-Fei Xiang
- Department of Radiotherapy, Ningbo Medical Treatment Center Lihuili Hospital, Ningbo
| | - Hui-Yun Huang
- Department of Dermatology, The First People's Hospital of Yueyang, Yueyang, People's Republic of China
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Enokida H, Yoshino H, Matsushita R, Nakagawa M. The role of microRNAs in bladder cancer. Investig Clin Urol 2016; 57 Suppl 1:S60-76. [PMID: 27326409 PMCID: PMC4910767 DOI: 10.4111/icu.2016.57.s1.s60] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Accepted: 04/17/2016] [Indexed: 12/20/2022] Open
Abstract
Bladder cancer (BC) is the fifth most common cancer worldwide and is associated with significant morbidity and mortality. The prognosis of muscle invasive BC is poor, and recurrence is common after radical surgery or chemotherapy. Therefore, new diagnostic methods and treatment modalities are critical. MicroRNAs (miRNAs), a class of small noncoding RNAs, regulate the expression of protein-coding genes by repressing translation or cleaving RNA transcripts in a sequence-specific manner. miRNAs have important roles in the regulation of genes involved in cancer development, progression, and metastasis. The availability of genomewide miRNA expression profiles by deep sequencing technology has facilitated rapid and precise identification of aberrant miRNA expression in BC. Indeed, several miRNAs that are either upregulated or downregulated have been shown to have associations with significant cancer pathways. Furthermore, many miRNAs, including those that can be detected in urine and blood, have been studied as potential noninvasive tumor markers for diagnostic and prognostic purposes. Here, we searched PubMed for publications describing the role of miRNAs in BC by using the keywords "bladder cancer" and "microRNA" on March 1, 2016. We found 374 papers and selected articles written in English in which the level of scientific detail and reporting were sufficient and in which novel findings were demonstrated. In this review, we summarize these studies from the point of view of miRNA-related molecular networks (specific miRNAs and their targets) and miRNAs as tumor markers in BC. We also discuss future directions of miRNA studies in the context of therapeutic modalities.
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Affiliation(s)
- Hideki Enokida
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Hirofumi Yoshino
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Ryosuke Matsushita
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Masayuki Nakagawa
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
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60
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Qin Q, Wei F, Zhang J, Wang X, Li B. miR-134 inhibits non-small cell lung cancer growth by targeting the epidermal growth factor receptor. J Cell Mol Med 2016; 20:1974-83. [PMID: 27241841 PMCID: PMC4891324 DOI: 10.1111/jcmm.12889] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2016] [Accepted: 04/28/2016] [Indexed: 12/26/2022] Open
Abstract
The epidermal growth factor receptor (EGFR) is frequently activated in a wide range of solid tumours and represents an important therapeutic target. MicroRNAs (miRNAs) have recently been recognized as a rational and potential modality for anti‐EGFR therapies. However, more EGFR‐targeting miRNAs need to be explored. In this study, we identified a novel EGFR‐targeting miRNA, miRNA‐134 (miR‐134), in non‐small‐cell lung cancer (NSCLC) cell lines. Luciferase assays confirmed that EGFR is a direct target of miR‐134. In addition, the overexpression of miR‐134 inhibited EGFR‐related signaling and suppressed NSCLC cells proliferation by inducing cell cycle arrest and/or apoptosis, suggesting that miR‐134 functions as a tumour suppressor in NSCLC. Further mechanistic investigation including RNAi and rescue experiments suggested that the down‐regulation of EGFR by miR‐134 partially contributes to the antiproliferative role of miR‐134. Last, in vivo experiments demonstrated that miR‐134 suppressed tumour growth of A549 xenograft in nude mice. Taken together, our findings suggest that miR‐134 inhibits non‐small cell lung cancer growth by targeting the EGFR.
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Affiliation(s)
- Qin Qin
- Department of Radiation Oncology (Chest Section), Shandong Cancer Hospital and Institute, Shandong University, Jinan, China.,Department of Radiation Oncology (Chest Section), Shandong Cancer Hospital and Institute, Shandong Academy of Medical Sciences, Jinan, China
| | - Furong Wei
- Institute of Basic Medicine, Shandong Academy of Medical Sciences, School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Jinan, China
| | - Jianbo Zhang
- Department of Pathology, Shandong Cancer Hospital and Institute, Shandong University, Jinan, China
| | - Xingwu Wang
- Basic Research Center, Shandong Cancer Hospital and Institute, Shandong University, Jinan, China
| | - Baosheng Li
- Department of Radiation Oncology (Chest Section), Shandong Cancer Hospital and Institute, Shandong University, Jinan, China. .,Department of Radiation Oncology (Chest Section), Shandong Cancer Hospital and Institute, Shandong Academy of Medical Sciences, Jinan, China.
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Understanding the CREB1-miRNA feedback loop in human malignancies. Tumour Biol 2016; 37:8487-502. [PMID: 27059735 DOI: 10.1007/s13277-016-5050-x] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2015] [Accepted: 04/01/2016] [Indexed: 02/07/2023] Open
Abstract
cAMP response element binding protein 1 (CREB1, CREB) is a key transcription factor that mediates transcriptional responses to a variety of growth factors and stress signals. CREB1 has been shown to play a critical role in development and progression of tumors. MicroRNAs (miRNAs) are a class of non-coding RNAs. They post-transcriptionally regulate gene expression through pairing with the 3'-UTR of their target mRNAs and thus regulate initiation and progression of various types of human cancers. Recent studies have demonstrated that a number of miRNAs can be transcriptionally regulated by CREB1. Interestingly, CREB1 expression can also be modulated by miRNAs, thus forming a feedback loop. This review outlines the functional roles of CREB1, miRNA, and their interactions in human malignancies. This will help to define a relationship between CREB1 and miRNA in human cancer and develop novel therapeutic strategies.
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Chen C, Tang Z, Song Q, Yang M, Shi Q, Weng Y. Downregulated microRNA-23b promotes BMP9-mediated osteogenesis in C2C12 myoblast cells by targeting Runx2. Mol Med Rep 2016; 13:2492-8. [PMID: 26820568 PMCID: PMC4768947 DOI: 10.3892/mmr.2016.4814] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2015] [Accepted: 12/01/2015] [Indexed: 12/19/2022] Open
Abstract
MicroRNAs are identified as negative regulators in gene expression through silencing gene expression at the post-transcriptional and translational levels. Bone morphogenetic protein 9 (BMP9) is the most effective in inducing osteogenesis in the BMP family, the members of which were originally identified as osteoinductive cytokines. In the current study, the role of miR-23b in the progression of BMP9-induced C2C12 myoblasts was investigated. The results indicated that miR-23b was significantly downregulated in C2C12 myoblasts induced by BMP9. Overexpression of miR-23b significantly inhibited osteogenesis in the C2C12 myoblasts. In addition, it was observed that Runx2 was negatively regulated by miR-23b at the post-transcriptional level, via a specific target site within the 3′UTR of Runx2. Knockdown of Runx2 promoted miR-23b-induced inhibition of osteogenesis in C2C12 myoblasts. The expression of Runx2 was observed to be frequently upregulated in osteoblast cell lines and inversely correlated with miR-23b expression. Thus, the results of the present study suggest that miR-23b inhibits BMP9-induced C2C12 myoblast osteogenesis via targeting of the Runx2 gene, acting as a suppressor. The current study contributes to the understanding of the functions of BMP9 in ossification.
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Affiliation(s)
- Chu Chen
- Key Laboratory of Diagnostic Medicine Designated by the Chinese Ministry of Education, Chongqing Medical University, Chongqing 40016, P.R. China
| | - Zuchuan Tang
- Key Laboratory of Diagnostic Medicine Designated by the Chinese Ministry of Education, Chongqing Medical University, Chongqing 40016, P.R. China
| | - Qiling Song
- Key Laboratory of Diagnostic Medicine Designated by the Chinese Ministry of Education, Chongqing Medical University, Chongqing 40016, P.R. China
| | - Min Yang
- Key Laboratory of Diagnostic Medicine Designated by the Chinese Ministry of Education, Chongqing Medical University, Chongqing 40016, P.R. China
| | - Qiong Shi
- Key Laboratory of Diagnostic Medicine Designated by the Chinese Ministry of Education, Chongqing Medical University, Chongqing 40016, P.R. China
| | - Yaguang Weng
- Key Laboratory of Diagnostic Medicine Designated by the Chinese Ministry of Education, Chongqing Medical University, Chongqing 40016, P.R. China
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Geng Y, Lu X, Wu X, Xue L, Wang X, Xu J. MicroRNA-27b suppresses Helicobacter pylori-induced gastric tumorigenesis through negatively regulating Frizzled7. Oncol Rep 2016; 35:2441-50. [PMID: 26780940 DOI: 10.3892/or.2016.4572] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Accepted: 12/11/2015] [Indexed: 12/13/2022] Open
Abstract
MicroRNAs (miRNAs) are novel tools for cancer therapy. Frizzled7 (FZD7) is an important co-receptor in the WNT signaling pathway. The WNT signaling pathway is aberrantly activated in Helicobacter pylori (H. pylori)‑infected gastric cancer cells. However, the role of FZD7 in H. pylori‑induced gastric tumorigenesis remains unknown. In this study, we investigated the potential role of FZD7 in H. pylori-induced gastric tumorigenesis and validated the possibility that targeting of FZD7 by specific miRNA inhibits H. pylori-induced gastric tumorigenesis. First, we found that FZD7 was significantly induced by H. pylori infection in a dose- and time-dependent manner. Knockdown of FZD7 by FZD7 small interfering RNA effectively inhibited H. pylori infection-induced cell proliferation of gastric cancer cells. We found that microRNA-27b (miR-27b) was the predicted miRNA for FZD7 and that miR-27b negatively regulated FZD7 expression by targeting the 3'-untranslated region of FZD7. Furthermore, miR-27b overexpression significantly inhibited H. pylori infection-induced cell proliferation and WNT signaling pathway activation in gastric cancer cells. Restoration of FZD7 expression significantly attenuated the inhibitory effect of miR-27b overexpression on cell proliferation and WNT signaling pathway activation. Collectively, our study suggests that FZD7 triggered by H. pylori infection contributes to the H. pylori infection-induced cell proliferation that links the WNT. Thus, miR-27b may be a promising molecular target for the treatment of the disease.
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Affiliation(s)
- Yan Geng
- Department of Laboratory, The Second Affiliated Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi 710004, P.R. China
| | - Xiaolan Lu
- Department of Gastroenterology, The Second Affiliated Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi 710004, P.R. China
| | - Xiaokang Wu
- Department of Laboratory, The Second Affiliated Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi 710004, P.R. China
| | - Li Xue
- Department of Laboratory, The Second Affiliated Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi 710004, P.R. China
| | - Xiangling Wang
- Department of Laboratory, The Second Affiliated Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi 710004, P.R. China
| | - Jiru Xu
- Department of Immunology and Pathogenic Biology, Health Science Center, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
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Dong H, Curran I, Williams A, Bondy G, Yauk CL, Wade MG. Hepatic miRNA profiles and thyroid hormone homeostasis in rats exposed to dietary potassium perfluorooctanesulfonate (PFOS). ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2016; 41:201-210. [PMID: 26724606 DOI: 10.1016/j.etap.2015.12.009] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Revised: 11/30/2015] [Accepted: 12/17/2015] [Indexed: 06/05/2023]
Abstract
Perfluorooctanesulfonate (PFOS) has been widely used in a variety of industrial and commercial applications as a surfactant and stain repellent. PFOS causes liver damage (including liver tumors) in experimental animals, primarily via interaction with PPARα and CAR/PXR. We investigated the involvement of microRNAs (miRNAs) in PFOS-induced hepatotoxicity, and mechanisms involved in abnormal thyroid hormone (TH) homeostasis, in the livers of adult male rats exposed in feed to 50mg PFOS/kg diet for 28 days. PFOS-treated rats exhibited expected histopathological and clinical chemistry changes, and global gene expression changes consistent with the involvement of PPARα and CAR/PXR. Thirty-eight miRNAs were significantly altered. Three members of the miR-200 family were the most increased, while miR-122-5p and miR-21-5p were the most decreased, in PFOS-treated rats. Expression of the miR-23b-3p/27b-3p/24-3p cluster also decreased in PFOS-treated animals. Pathway analysis of miRNAs and associated gene expression changes suggests involvement of epithelial to mesenchymal transition (EMT), which is a primary process of tumor cell motility and cancer metastasis. Our analysis also revealed transcripts that may mediate PFOS-induced effects on TH homeostasis including: activation of the CAR/PXR pathway, phase II/III enzymes, and deiodinase. These changes are consistent with low serum TH due to enhanced metabolic clearance of TH. However, most TH hepatic target genes were not altered in a manner consistent with reduced TH signaling, suggesting that PFOS exposure did not induce functional hypothyroidism. Collectively, the study suggests an important role for miRNAs in PFOS-induced hepatotoxicity and provides insight into the effects of PFOS on TH homeostasis.
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Affiliation(s)
- Hongyan Dong
- Environmental Health Science and Research Bureau, Healthy Environments and Consumer Safety Branch, Ottawa, ON, Canada K1A 0K9
| | - Ivan Curran
- Bureau of Chemical Safety, Health Canada, Ottawa, ON, Canada K1A 0K9
| | - Andrew Williams
- Environmental Health Science and Research Bureau, Healthy Environments and Consumer Safety Branch, Ottawa, ON, Canada K1A 0K9
| | - Genevieve Bondy
- Bureau of Chemical Safety, Health Canada, Ottawa, ON, Canada K1A 0K9
| | - Carole L Yauk
- Environmental Health Science and Research Bureau, Healthy Environments and Consumer Safety Branch, Ottawa, ON, Canada K1A 0K9
| | - Michael G Wade
- Environmental Health Science and Research Bureau, Healthy Environments and Consumer Safety Branch, Ottawa, ON, Canada K1A 0K9.
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Qi Y, Chen H, Tan W, Li Y, Yuan G, Xu M. The genomic sequences near the mir-23b-27b-24-1 cluster form G-quadruplexes and are selectively bound by the natural alkaloid tetrandrine. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2015; 29:1611-1616. [PMID: 28339154 DOI: 10.1002/rcm.7251] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Revised: 05/02/2015] [Accepted: 06/11/2015] [Indexed: 06/06/2023]
Abstract
RATIONALE Although the microRNAs miR-23b, miR-27b and miR-24 are located in the same cluster, their expressions in various pathological states are not always comparable. By searching the genomic sequence around mir23b-27b-24-1 in rat, we identified three potential G-quadruplex sequences (PQS) which can fold into different types of G-quadruplexes, including parallel or antiparallel. Natural alkaloids, tetrandrine (TET), displayed different binding affinity with the three G-quadruplexes which may potentially regulate the expression of mir23b-27b-24-1 cluster members. METHODS Both electrospray ionization mass spectrometry (ESI-MS) and circular dichroism (CD) spectroscopy were utilized to detect the formation of G-quadruplexes. Six small molecules were screened by ESI-MS for their binding affinity with three G-quadruplexes, which were evaluated by their IRa values. RESULTS The results of ESI-MS and CD experiments confirmed the formation of three G-quadruplexes neighboring the mir23b-27b-24-1 cluster; two of them adopted antiparallel G-quadruplexes, another adopted a parallel G-quadruplex. Screening of small molecules by ESI-MS showed tetrandrine had selective binding affinity for the parallel G-quadruplex. G-quadruplex stabilization by tetrandrine was verified by CD variable temperature measurements. CONCLUSIONS The gene of the mir23b-27b-24-1 cluster harbors three G-quadruplexes with typical sequences and structures. Tetrandrine had a selective binding affinity to the parallel G-quadruplex and stabilized it significantly. Copyright © 2015 John Wiley & Sons, Ltd.
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Affiliation(s)
- Yanchao Qi
- Department of Cardiology, Institute of Vascular Medicine, Peking University Third Hospital, Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Ministry of Health and Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, China
| | - Han Chen
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, Department of Chemical Biology, College of Chemistry and Molecular Engineering, Peking University
| | - Wei Tan
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, Department of Chemical Biology, College of Chemistry and Molecular Engineering, Peking University
| | - Yanyan Li
- Department of Cardiology, Institute of Vascular Medicine, Peking University Third Hospital, Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Ministry of Health and Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, China
| | - Gu Yuan
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, Department of Chemical Biology, College of Chemistry and Molecular Engineering, Peking University
| | - Ming Xu
- Department of Cardiology, Institute of Vascular Medicine, Peking University Third Hospital, Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Ministry of Health and Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, China
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MicroRNAs and Growth Factors: An Alliance Propelling Tumor Progression. J Clin Med 2015; 4:1578-99. [PMID: 26287249 PMCID: PMC4555078 DOI: 10.3390/jcm4081578] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Revised: 07/30/2015] [Accepted: 07/31/2015] [Indexed: 02/06/2023] Open
Abstract
Tumor progression requires cancer cell proliferation, migration, invasion, and attraction of blood and lymph vessels. These processes are tightly regulated by growth factors and their intracellular signaling pathways, which culminate in transcriptional programs. Hence, oncogenic mutations often capture growth factor signaling, and drugs able to intercept the underlying biochemical routes might retard cancer spread. Along with messenger RNAs, microRNAs play regulatory roles in growth factor signaling and in tumor progression. Because growth factors regulate abundance of certain microRNAs and the latter modulate the abundance of proteins necessary for growth factor signaling, the two classes of molecules form a dense web of interactions, which are dominated by a few recurring modules. We review specific examples of the alliance formed by growth factors and microRNAs and refer primarily to the epidermal growth factor (EGF) pathway. Clinical applications of the crosstalk between microRNAs and growth factors are described, including relevance to cancer therapy and to emergence of resistance to specific drugs.
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67
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Veliceasa D, Biyashev D, Qin G, Misener S, Mackie AR, Kishore R, Volpert OV. Therapeutic manipulation of angiogenesis with miR-27b. Vasc Cell 2015; 7:6. [PMID: 26161255 PMCID: PMC4497374 DOI: 10.1186/s13221-015-0031-1] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Accepted: 06/08/2015] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Multiple studies demonstrated pro-angiogenic effects of microRNA (miR)-27b. Its targets include Notch ligand Dll4, Sprouty (Spry)-2, PPARγ and Semaphorin (SEMA) 6A. miR-27 effects in the heart are context-dependent: although it is necessary for ventricular maturation, targeted overexpression in cardiomyocytes causes hypertrophy and dysfunction during development. Despite significant recent advances, therapeutic potential of miR-27b in cardiovascular disease and its effects in adult heart remain unexplored. Here, we assessed the therapeutic potential of miR-27b mimics and inhibitors in rodent models of ischemic disease and cancer. METHODS We have used a number of models to demonstrate the effects of miR-27b mimicry and inhibition in vivo, including subcutaneous Matrigel plug assay, mouse models of hind limb ischemia and myocardial infarction and subcutaneous Lewis Lung carcinoma. RESULTS Using mouse model of myocardial infarction due to the coronary artery ligation, we showed that miR-27b mimic had overall beneficial effects, including increased vascularization, decreased fibrosis and increased ejection fraction. In mouse model of critical limb ischemia, miR-27b mimic also improved tissue re-vascularization and perfusion. In both models, miR-27b mimic clearly decreased macrophage recruitment to the site of hypoxic injury. In contrast, miR-27b increased the recruitment of bone marrow derived cells to the neovasculature, as was shown using mice reconstituted with fluorescence-tagged bone marrow. These effects were due, at least in part, to the decreased expression of Dll4, PPARγ and IL10. In contrast, blocking miR-27b significantly decreased vascularization and reduced growth of subcutaneous tumors and decreased BMDCs recruitment to the tumor vasculature. CONCLUSIONS Our study demonstrates the utility of manipulating miR-27b levels in the treatment of cardiovascular disease and cancer.
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Affiliation(s)
- Dorina Veliceasa
- Urology Department, Northwestern University Feinberg School of Medicine, Chicago, IL USA ; Department of Urology, University of Illinois at Chicago Medical College, Chicago, IL USA
| | - Dauren Biyashev
- Department of Medicine, Cardiology Division, Northwestern University Feinberg School of Medicine, Chicago, IL USA
| | - Gangjian Qin
- Department of Medicine, Cardiology Division, Northwestern University Feinberg School of Medicine, Chicago, IL USA
| | - Sol Misener
- Department of Radiology, Northwestern University Feinberg School of Medicine, Chicago, IL USA
| | - Alexander Roy Mackie
- Department of Medicine, Cardiology Division, Northwestern University Feinberg School of Medicine, Chicago, IL USA
| | - Raj Kishore
- Department of Pharmacology, Temple University School of Medicine, Philadelphia, PA USA
| | - Olga V Volpert
- Urology Department, Northwestern University Feinberg School of Medicine, Chicago, IL USA ; Northwestern University, Feinberg Cardiovascular Research Institute, Chicago, IL USA
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Matsushita R, Seki N, Chiyomaru T, Inoguchi S, Ishihara T, Goto Y, Nishikawa R, Mataki H, Tatarano S, Itesako T, Nakagawa M, Enokida H. Tumour-suppressive microRNA-144-5p directly targets CCNE1/2 as potential prognostic markers in bladder cancer. Br J Cancer 2015; 113:282-9. [PMID: 26057453 PMCID: PMC4506384 DOI: 10.1038/bjc.2015.195] [Citation(s) in RCA: 110] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2015] [Revised: 03/30/2015] [Accepted: 05/06/2015] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Analysis of a microRNA (miRNA) expression signature of bladder cancer (BC) by deep-sequencing revealed that clustered miRNAs microRNA (miR)-451a, miR-144-3p, and miR-144-5p were significantly downregulated in BC tissues. We hypothesised that these miRNAs function as tumour suppressors in BC. The aim of this study was to investigate the functional roles of these miRNAs and their modulation of cancer networks in BC cells. METHODS The functional studies of BC cells were performed using transfection of mature miRNAs. Genome-wide gene expression analysis, in silico analysis, and dual-luciferase reporter assays were applied to identify miRNA targets. The association between miR-144-5p levels and expression of the target genes was determined, and overall patient survival as a function of target gene expression was estimated by the Kaplan-Meier method. RESULTS Gain-of-function studies showed that miR-144-5p significantly inhibited cell proliferation by BC cells. Four cell cycle-related genes (CCNE1, CCNE2, CDC25A, and PKMYT1) were identified as direct targets of miR-144-5p. The patients with high CCNE1 or CCNE2 expression had lower overall survival probabilities than those with low expression (P=0.025 and P=0.032). CONCLUSION miR-144-5p functions as tumour suppressor in BC cells. CCNE1 and CCNE2 were directly regulated by miR-144-5p and might be good prognostic markers for survival of BC patients.
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Affiliation(s)
- R Matsushita
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8520, Japan
| | - N Seki
- Department of Functional Genomics, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan
| | - T Chiyomaru
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8520, Japan
| | - S Inoguchi
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8520, Japan
| | - T Ishihara
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8520, Japan
| | - Y Goto
- Department of Functional Genomics, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan
| | - R Nishikawa
- Department of Functional Genomics, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan
| | - H Mataki
- Department of Pulmonary Medicine, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8520, Japan
| | - S Tatarano
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8520, Japan
| | - T Itesako
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8520, Japan
| | - M Nakagawa
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8520, Japan
| | - H Enokida
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8520, Japan
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An Y, Zhang Z, Shang Y, Jiang X, Dong J, Yu P, Nie Y, Zhao Q. miR-23b-3p regulates the chemoresistance of gastric cancer cells by targeting ATG12 and HMGB2. Cell Death Dis 2015; 6:e1766. [PMID: 25996293 PMCID: PMC4669702 DOI: 10.1038/cddis.2015.123] [Citation(s) in RCA: 173] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Revised: 03/16/2015] [Accepted: 03/23/2015] [Indexed: 12/17/2022]
Abstract
Chemotherapy is an important treatment modality for gastric cancer (GC); however, it usually fails because of drug resistance, especially multidrug resistance (MDR). Previously, we found a novel subset of MDR-associated microRNAs (miRNAs) through high-throughput functional screening. In this report, we investigated the exact roles and mechanisms of miR-23b-3p in the MDR of GC. Using gain or loss-of-function in in vitro and in vivo experiments, we found that overexpression of miR-23b-3p reversed cancer cell resistance to multiple chemotherapeutics in vitro and sensitize tumors to chemotherapy in vivo. Reporter gene assay and western blot analysis showed that ATG12 and HMGB2 were the direct targets of miR-23b-3p. Meanwhile, ATG12 and HMGB2 were positively associated with the occurrence of autophagy. Reducing the expression of these target genes by siRNA or inhibition of autophagy both sensitized GC cells to chemotherapy. These findings suggest that a miR-23b-3p/ATG12/HMGB2/autophagy-regulatory loop has a critical role in MDR in GC. In addition, miR-23b-3p could be used as a prognostic factor for overall survival in GC. In conclusion, our data demonstrated that miR-23b-3p inhibited autophagy mediated by ATG12 and HMGB2 and sensitized GC cells to chemotherapy, and suggested the potential application of miR-23b-3p in drug resistance prediction and treatment.
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Affiliation(s)
- Y An
- 1] State Key Laboratory of Cancer Biology and Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, 127 Changle Western Road, Xi'an, Shaanxi 710032, China [2] Department of General Surgery, General Hospital of Jinan Military Command, Jinan, China [3] Department of Biochemistry and Molecular Biology, Zhejiang Provincial Key Laboratory of Pathophysiology, Ningbo University School of Medicine, Ningbo, Zhejiang 315211, China
| | - Z Zhang
- 1] State Key Laboratory of Cancer Biology and Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, 127 Changle Western Road, Xi'an, Shaanxi 710032, China [2] Department of Biochemistry and Molecular Biology, Zhejiang Provincial Key Laboratory of Pathophysiology, Ningbo University School of Medicine, Ningbo, Zhejiang 315211, China
| | - Y Shang
- 1] State Key Laboratory of Cancer Biology and Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, 127 Changle Western Road, Xi'an, Shaanxi 710032, China [2] Department of Biochemistry and Molecular Biology, Zhejiang Provincial Key Laboratory of Pathophysiology, Ningbo University School of Medicine, Ningbo, Zhejiang 315211, China
| | - X Jiang
- 1] State Key Laboratory of Cancer Biology and Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, 127 Changle Western Road, Xi'an, Shaanxi 710032, China [2] Department of Biochemistry and Molecular Biology, Zhejiang Provincial Key Laboratory of Pathophysiology, Ningbo University School of Medicine, Ningbo, Zhejiang 315211, China
| | - J Dong
- State Key Laboratory of Cancer Biology and Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, 127 Changle Western Road, Xi'an, Shaanxi 710032, China
| | - P Yu
- State Key Laboratory of Cancer Biology and Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, 127 Changle Western Road, Xi'an, Shaanxi 710032, China
| | - Y Nie
- State Key Laboratory of Cancer Biology and Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, 127 Changle Western Road, Xi'an, Shaanxi 710032, China
| | - Q Zhao
- State Key Laboratory of Cancer Biology and Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, 127 Changle Western Road, Xi'an, Shaanxi 710032, China
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Sun L, Bian G, Meng Z, Dang G, Shi D, Mi S. MiR-144 Inhibits Uveal Melanoma Cell Proliferation and Invasion by Regulating c-Met Expression. PLoS One 2015; 10:e0124428. [PMID: 25961751 PMCID: PMC4427317 DOI: 10.1371/journal.pone.0124428] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2015] [Accepted: 03/15/2015] [Indexed: 02/07/2023] Open
Abstract
MicroRNAs (miRNAs) are a group endogenous small non-coding RNAs that inhibit protein translation through binding to specific target mRNAs. Recent studies have demonstrated that miRNAs are implicated in the development of cancer. However, the role of miR-144 in uveal melanoma metastasis remains largely unknown. MiR-144 was downregulated in both uveal melanoma cells and tissues. Transfection of miR-144 mimic into uveal melanoma cells led to a decrease in cell growth and invasion. After identification of two putative miR-144 binding sites within the 3' UTR of the human c-Met mRNA, miR-144 was proved to inhibit the luciferase activity inMUM-2B cells with a luciferase reporter construct containing the binding sites. In addition, the expression of c-Met protein was inhibited by miR-144. Furthermore, c-Met-mediated cell proliferation and invasion were inhibited by restoration of miR-144 in uveal melanoma cells. In conclusion, miR-144 acts as a tumor suppressor in uveal melanoma, through inhibiting cell proliferation and migration. miR-144 might serve as a potential therapeutic target in uveal melanoma patients.
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Affiliation(s)
- Lei Sun
- Department of Ophthalmology, The Fourth Hospital of Harbin Medical University, Harbin, 150001, Heilongjiang, China
| | - Guangqing Bian
- Department of Ophthalmology, Shandong Provincial Qianfoshan Hospital, Jinan 250000, Shandong, China
| | - ZhaoJun Meng
- Department of Ophthalmology, The Fourth Hospital of Harbin Medical University, Harbin, 150001, Heilongjiang, China
| | - Guangfu Dang
- Department of Ophthalmology, Shandong Provincial Qianfoshan Hospital, Jinan 250000, Shandong, China
| | - DeJing Shi
- Department of Ophthalmology, The Fourth Hospital of Harbin Medical University, Harbin, 150001, Heilongjiang, China
| | - Shuyong Mi
- Department of Ophthalmology, The Fourth Hospital of Harbin Medical University, Harbin, 150001, Heilongjiang, China
- * E-mail:
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Yang X, Zang W, Xuan X, Wang Z, Liu Z, Wang J, Cui J, Zhao G. miRNA-1207-5p is associated with cancer progression by targeting stomatin-like protein 2 in esophageal carcinoma. Int J Oncol 2015; 46:2163-71. [PMID: 25695396 DOI: 10.3892/ijo.2015.2900] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2014] [Accepted: 02/02/2015] [Indexed: 12/24/2022] Open
Abstract
Newly discovered intrinsic regulators, the miRNAs regulate gene expression by binding to the 3'-untranslated regions of the genome. Accumulating studies have indicated that miRNAs are aberrantly expressed in various human cancers. We found that miRNA-1207-5p (miR‑1207-5p) was markedly downregulated in esophageal carcinoma (EC) tissues, and was correlated with EC differentiation, pathological stage and lymph node metastasis. Rates of apoptosis were increased and cell invasion ability was decreased in EC9706 and EC-1 cells transfected with a miR‑1207-5p mimic. Stomatin-like protein 2 (STOML-2) was predicted to be a potential target of miR‑1207-5p by bioinformatics analysis and this was confirmed by luciferase assay and western blotting. Our study showed that STOML-2 was negatively regulated by miR‑1207-5p. Furthermore, overexpression of STOML-2 abolished the miR‑1207-5p anti-invasion function. Based on these results, we proposed that miR‑1207-5p might act as a potential therapeutic target in the treatment of EC.
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Affiliation(s)
- Xuan Yang
- College of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450001, P.R. China
| | - Wenqiao Zang
- College of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450001, P.R. China
| | - Xiaoyan Xuan
- College of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450001, P.R. China
| | - Zhongquan Wang
- College of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450001, P.R. China
| | - Zhicai Liu
- Tumor Hospital of Linzhou City, Linzhou, Henan 456500, P.R. China
| | - Jinwu Wang
- Tumor Hospital of Linzhou City, Linzhou, Henan 456500, P.R. China
| | - Jing Cui
- College of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450001, P.R. China
| | - Guoqiang Zhao
- College of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450001, P.R. China
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Tian X, Zeng G, Li X, Wu Z, Wang L. Cantharidin inhibits cell proliferation and promotes apoptosis in tongue squamous cell carcinoma through suppression of miR-214 and regulation of p53 and Bcl-2/Bax. Oncol Rep 2015; 33:3061-8. [PMID: 25962755 DOI: 10.3892/or.2015.3942] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2015] [Accepted: 03/09/2015] [Indexed: 11/06/2022] Open
Abstract
Cantharidin, a type of terpenoid, is a chemical compount secreted by the blister beetle or Mylabris phelarata pallas of the Meloidae family. Cantharidin is known to have good antitumor activity. The present study aimed to investigate the anticancer effect of cantharidin and its possible underlying mechanism using tongue squamous cell carcinoma (TSCC) TCA8113 cells. TCA8113 cells were treated with various concentrations of cantharidin, and the cell viability and cytotoxicity were assessed using MTT and LDH assays, respectively. Flow cytometry was conducted to examine cell apoptosis and colorimetric protease assay was performed to analyze caspase-9/3 activities in TCA8113 cells. qPCR and western blot analysis were used to investigate microRNA-214 (miR-214) expression, as well as the expression of p53, Bcl-2 and Bax proteins in TCA8113 cells. miR-214 and anti-miR-214 were transfected with mimics to examine whether miR-214 expression regulated the anticancer effect of cantharidin on TCA8113 cells and p53, Bcl-2 and Bax protein expression. The anticancer effect of cantharidin significantly inhibited cell proliferation and increased cytotoxicity of TSCC Tca8113 cells in a dose- and time-dependent manner. In addition, cantharidin induced cell apoptosis and activated caspase-9/3 activities of TSCC Tca8113 cells. Cantharidin markedly weakened miR-214 expression level, activated p53 protein expression, and suppressed the Bcl-2/Bax signaling pathway in Tca8113 cells. Downregulation of miR-214 increased p53 protein expression and decreased the Bcl-2/Bax signaling pathway of TSCC Tca8113 cells. However, the overexpression of miR-214 reduced the anticancer effect of cantharidin on the proliferation and apoptosis of TSCC Tca8113 cells, inhibited p53 protein expression, and increased the Bcl-2/Bax signaling pathway. The results suggested that cantharidin is a potential anticancer drug that can be used to regulate the proliferation and apoptosis of human TSCC Tca8113 cells. Additionally, its mechanism may partially be associated with the downregulation of miR-214, upregulation of p53 protein expression and suppression of the Bcl-2/Bax signaling pathway.
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Affiliation(s)
- Xiaoguang Tian
- State Key Laboratory of Military Stomatology, Department of Orthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi 710038, P.R. China
| | - Guang Zeng
- Department of Plastic and Burn Surgery, Tangdu Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710038, P.R. China
| | - Xi Li
- Hospital of Chongming Air Force Field, Shanghai 202150, P.R. China
| | - Zizhong Wu
- Department of Oral and Maxillofacial Surgery, The 88th Hospital of PLA, Tai'an, Shandong 271000, P.R. China
| | - Lei Wang
- State Key Laboratory of Military Stomatology, Department of Orthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi 710038, P.R. China
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73
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Braoudaki M, Lambrou GI. MicroRNAs in pediatric central nervous system embryonal neoplasms: the known unknown. J Hematol Oncol 2015; 8:6. [PMID: 25652781 PMCID: PMC4333163 DOI: 10.1186/s13045-014-0101-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2014] [Accepted: 12/27/2014] [Indexed: 12/16/2022] Open
Abstract
MicroRNAs (miRNAs) are endogenous short non-coding RNAs that repress post-transcriptional regulation of gene expression, while embryonal central nervous system tumors are the foremost cause of mortality in children suffering from a neoplasm. MiRNAs and their regulatory mechanisms are new to understand, while pediatric CNS tumors are difficult to comprehend. Therefore, identification of the link between them composes a major scientific challenge. The present study, reviewed the current knowledge on the role of miRNA in pediatric CNS embryonal tumors, attempting to collect the existing information in one piece of work that could ideally be used as a guide for future reference and research.
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Affiliation(s)
- Maria Braoudaki
- First Department of Pediatrics, University of Athens, Choremeio Research Laboratory, Athens, Greece. .,University Research Institute for the Study and Treatment of Childhood Genetic and Malignant Diseases, University of Athens, Aghia Sophia Children's Hospital, Athens, Greece.
| | - George I Lambrou
- First Department of Pediatrics, University of Athens, Choremeio Research Laboratory, Athens, Greece.
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