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Ying Z, Lyu L, Xu X, Wen Z, Xue J, Chen M, Li Z, Jiang L, Chen T. Resident vascular Sca1 + progenitors differentiate into endothelial cells in vascular remodeling via miR-145-5p/ERG signaling pathway. iScience 2024; 27:110080. [PMID: 38883819 PMCID: PMC11176791 DOI: 10.1016/j.isci.2024.110080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 03/17/2024] [Accepted: 05/20/2024] [Indexed: 06/18/2024] Open
Abstract
Endothelial cell (EC) damage or dysfunction serves as the initial event in the pathogenesis of various cardiovascular diseases. Progenitor cells have been postulated to be able to differentiate into ECs, facilitate endothelial regeneration, and alleviate vascular pathological remodeling. However, the precise cellular origins and underlying mechanisms remain elusive. Through single-cell RNA sequencing (scRNA-seq), we identified an increasing population of progenitors expressing stem cell antigen 1 (Sca1) during vascular remodeling in mice. Using both mouse femoral artery injury and vein graft models, we determined that Sca1+ cells differentiate into ECs, restored endothelium in arterial and venous remodeling processes. Notably, we have observed that the differentiation of Sca1+ cells into ECs is negatively regulated by the microRNA-145-5p (miR-145-5p)-Erythroblast transformation-specific-related gene (ERG) pathway. Inhibiting miR-145-5p promoted Sca1+ cell differentiation and reduced neointimal formation after vascular injury. Finally, a similar downregulation of miR-145-5p in human arteriovenous fistula was observed comparing to healthy veins.
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Affiliation(s)
- Zhangquan Ying
- Department of Cardiology, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - Lingxia Lyu
- Department of Cardiology, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - Xiaodong Xu
- Department of Cardiology, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - Zuoshi Wen
- Department of Cardiology, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - Jianing Xue
- Department of Cardiology, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - Mengjia Chen
- Department of Cardiology, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - Zhoubin Li
- Department of Lung Transplantation and General Thoracic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - Liujun Jiang
- Department of Cardiology, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - Ting Chen
- Department of Cardiology, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
- Key Laboratory of Precision Medicine for Atherosclerotic Diseases of Zhejiang Province, Affiliated First Hospital of Ningbo University, Ningbo 315010, China
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Ramu A, Chinnappan J. Bioinformatics-Assisted Extraction of All PCa miRNAs and their Target Genes. Microrna 2024; 13:33-55. [PMID: 38284737 DOI: 10.2174/0122115366253242231020053221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 07/03/2023] [Accepted: 08/23/2023] [Indexed: 01/30/2024]
Abstract
INTRODUCTION To retrieve, and classify PCa miRNAs and identify the functional relationship between miRNAs and their targets through literature collection with computational analysis. BACKGROUND MicroRNAs play a role in gene regulation, which can either repress or activate the gene. Hence, the functions of miRNAs are dependent on the target gene. This study will be the first of its kind to combine computational analysis with corpus PCa data. Effectively, our study reported the huge number of miRNAs associated with PCa along with functional information. OBJECTIVE The identification and classification of previously known full PCa miRNAs and their targets were made possible by mining the literature data. Systems Biology and curated data mining assisted in identifying optimum miRNAs and their target genes for PCa therapy. METHODS PubMed database was used to collect the PCa literature up to December 2021. Pubmed. mineR package was used to extract the microRNAs associated articles and manual curation was performed to classify the microRNAs based on the function in PCa. PPI was constructed using the STRING database. Pathway analysis was performed using PANTHER and ToppGene Suite Software. Functional analysis was performed using ShinyGO software. Cluster analysis was performed using MCODE 2.0, and Hub gene analysis was performed using cytoHubba. The genemiRNA network was reconstructed using Cytoscape. RESULTS Unique PCa miRNAs were retrieved and classified from mined PCa literature. Six hundred and five unique miRNAs from 250 articles were considered as oncomiRs to trigger PCa. One hundred and twenty unique miRNAs from 118 articles were considered Tumor Suppressor miRNAs to suppress the PCa. Twenty-four unique miRNAs from 22 articles were utilized as treatment miRNAs to treat PCa. miRNAs target genes and their significant pathways, functions and hub genes were identified. CONCLUSION miR-27a, miR-34b, miR-495, miR-23b, miR-100, miR-218, Let-7a family, miR-27a- 5p, miR-34c, miR-34a, miR-143/-145, miR-125b, miR-124 and miR-205 with their target genes AKT1, SRC, CTNNB1, HRAS, MYC and TP53 are significant PCa targets.
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Affiliation(s)
- Akilandeswari Ramu
- Anthropology and Health Informatics Lab, Department of Bioinformatics, Bharathiar University, Coimbatore, Tamil Nadu, India
| | - Jayaprakash Chinnappan
- Anthropology and Health Informatics Lab, Department of Bioinformatics, Bharathiar University, Coimbatore, Tamil Nadu, India
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Mumtaz S, Usman Rashid M, Khan RU, Malkani N. miR-4482 and miR-3912 aim for 3'UTR of ERG mRNA in prostate cancer. PLoS One 2023; 18:e0286996. [PMID: 37310937 DOI: 10.1371/journal.pone.0286996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 05/29/2023] [Indexed: 06/15/2023] Open
Abstract
Ets-related gene (ERG) is overexpressed as a fusion protein in prostate cancer. During metastasis, the pathological role of ERG is associated with cell proliferation, invasion, and angiogenesis. Here, we hypothesized that miRNAs regulate ERG expression through its 3'UTR. Several bioinformatics tools were used to identify miRNAs and their binding sites on 3'UTR of ERG. The selected miRNAs expression was analyzed in prostate cancer samples by qPCR. The miRNAs overexpression was induced in prostate cancer cells (VCaP) to analyze ERG expression. Reporter gene assay was performed to evaluate the ERG activity in response to selected miRNAs. The expression of ERG downstream target genes was also investigated through qPCR after miRNAs overexpression. To observe the effects of selected miRNAs on cell proliferation and migration, scratch assay was performed to calculate the cell migration rate. miR-4482 and miR-3912 were selected from bioinformatics databases. miR-4482 and -3912 expression were decreased in prostate cancer samples, as compared to controls (p<0.05 and p<0.001), respectively. Overexpression of miR-4482 and miR-3912 significantly reduced ERG mRNA (p<0.001 and p<0.01), respectively) and protein (p<0.01) in prostate cancer cells. The transcriptional activity of ERG was significantly reduced (p<0.01) in response to miR-4482 and-3912. ERG angiogenic targets and cell migration rate was also reduced significantly (p<0.001) after miR-4482 and -3912 over-expression. This study indicates that miR-4482 and -3912 can suppress the ERG expression and its target genes, thereby, halt prostate cancer progression. These miRNAs may be employed as a potential therapeutic target for the miRNA-based therapy against prostate cancer.
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Affiliation(s)
- Sidra Mumtaz
- Department of Zoology, GC University, Lahore, Pakistan
| | - Muhammad Usman Rashid
- Department of Basic Sciences Research, Shaukat Khanum Memorial Cancer Hospital and Research Centre (SKMCH&RC), Lahore, Pakistan
| | | | - Naila Malkani
- Department of Zoology, GC University, Lahore, Pakistan
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Gujrati H, Ha S, Wang BD. Deregulated microRNAs Involved in Prostate Cancer Aggressiveness and Treatment Resistance Mechanisms. Cancers (Basel) 2023; 15:3140. [PMID: 37370750 PMCID: PMC10296615 DOI: 10.3390/cancers15123140] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 06/06/2023] [Accepted: 06/08/2023] [Indexed: 06/29/2023] Open
Abstract
Prostate cancer (PCa) is the most frequently diagnosed cancer and the second leading cause of cancer deaths among American men. Complex genetic and epigenetic mechanisms are involved in the development and progression of PCa. MicroRNAs (miRNAs) are short noncoding RNAs that regulate protein expression at the post-transcriptional level by targeting mRNAs for degradation or inhibiting protein translation. In the past two decades, the field of miRNA research has rapidly expanded, and emerging evidence has revealed miRNA dysfunction to be an important epigenetic mechanism underlying a wide range of diseases, including cancers. This review article focuses on understanding the functional roles and molecular mechanisms of deregulated miRNAs in PCa aggressiveness and drug resistance based on the existing literature. Specifically, the miRNAs differentially expressed (upregulated or downregulated) in PCa vs. normal tissues, advanced vs. low-grade PCa, and treatment-responsive vs. non-responsive PCa are discussed. In particular, the oncogenic and tumor-suppressive miRNAs involved in the regulation of (1) the synthesis of the androgen receptor (AR) and its AR-V7 splice variant, (2) PTEN expression and PTEN-mediated signaling, (3) RNA splicing mechanisms, (4) chemo- and hormone-therapy resistance, and (5) racial disparities in PCa are discussed and summarized. We further provide an overview of the current advances and challenges of miRNA-based biomarkers and therapeutics in clinical practice for PCa diagnosis/prognosis and treatment.
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Affiliation(s)
- Himali Gujrati
- Department of Pharmaceutical Sciences, University of Maryland Eastern Shore School of Pharmacy, Princess Anne, MD 21853, USA
| | - Siyoung Ha
- Department of Pharmaceutical Sciences, University of Maryland Eastern Shore School of Pharmacy, Princess Anne, MD 21853, USA
| | - Bi-Dar Wang
- Department of Pharmaceutical Sciences, University of Maryland Eastern Shore School of Pharmacy, Princess Anne, MD 21853, USA
- Hormone Related Cancers Program, University of Maryland Greenebaum Comprehensive Cancer Center, Baltimore, MD 21201, USA
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Menegatti J, Nakel J, Stepanov YK, Caban KM, Ludwig N, Nord R, Pfitzner T, Yazdani M, Vilimova M, Kehl T, Lenhof HP, Philipp SE, Meese E, Fröhlich T, Grässer FA, Hart M. Changes of Protein Expression after CRISPR/Cas9 Knockout of miRNA-142 in Cell Lines Derived from Diffuse Large B-Cell Lymphoma. Cancers (Basel) 2022; 14:cancers14205031. [PMID: 36291816 PMCID: PMC9600116 DOI: 10.3390/cancers14205031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 10/10/2022] [Accepted: 10/11/2022] [Indexed: 11/22/2022] Open
Abstract
Simple Summary The gene of the human tumor suppressive microRNA-142 (miR-142) carries mutations in about 20% of cases of diffuse large B-cell lymphoma (DLBCL). Because microRNAs post-transcriptionally regulate the protein expression of their cognate messenger RNA (mRNAs) targets, we determined the effect of miR-142 knockout on protein expression in two cell lines derived from DLBCL. We found a significant up-regulation of 52 proteins but also a down-regulation of 41 proteins upon miR-142 deletion. Knockout of a miRNA may be used to identify novel targets, and seed-sequence mutants of a miRNA unable to bind to their targets can be used to confirm potential novel targets. With this approach, we identify AKT1S1, CCNB1, LIMA1 and TFRC as novel targets of miR-142. As miR-142 is highly present in the miRNA processing RISC complexes, the deletion of this miRNA might result in its replacement by other miRNAs, thus introducing an additional layer of complexity regarding gene regulation. Abstract Background: As microRNA-142 (miR-142) is the only human microRNA gene where mutations have consistently been found in about 20% of all cases of diffuse large B-cell lymphoma (DLBCL), we wanted to determine the impact of miR-142 inactivation on protein expression of DLBCL cell lines. Methods: miR-142 was deleted by CRISPR/Cas9 knockout in cell lines from DLBCL. Results: By proteome analyses, miR-142 knockout resulted in a consistent up-regulation of 52 but also down-regulation of 41 proteins in GC-DLBCL lines BJAB and SUDHL4. Various mitochondrial ribosomal proteins were up-regulated in line with their pro-tumorigenic properties, while proteins necessary for MHC-I presentation were down-regulated in accordance with the finding that miR-142 knockout mice have a defective immune response. CFL2, CLIC4, STAU1, and TWF1 are known targets of miR-142, and we could additionally confirm AKT1S1, CCNB1, LIMA1, and TFRC as new targets of miR-142-3p or -5p. Conclusions: Seed-sequence mutants of miR-142 confirmed potential targets and novel targets of miRNAs can be identified in miRNA knockout cell lines. Due to the complex contribution of miRNAs within cellular regulatory networks, in particular when miRNAs highly present in RISC complexes are replaced by other miRNAs, primary effects on gene expression may be covered by secondary layers of regulation.
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Affiliation(s)
- Jennifer Menegatti
- Institute of Virology, Saarland University Medical School, 66421 Homburg, Germany
| | - Jacqueline Nakel
- Institute of Virology, Saarland University Medical School, 66421 Homburg, Germany
| | - Youli K. Stepanov
- Laboratory for Functional Genome Analysis (LAFUGA), Gene Center, Ludwig-Maximilians-University Munich, 81377 Munich, Germany
| | - Karolina M. Caban
- Laboratory for Functional Genome Analysis (LAFUGA), Gene Center, Ludwig-Maximilians-University Munich, 81377 Munich, Germany
| | - Nicole Ludwig
- Institute of Human Genetics, Saarland University, 66421 Homburg, Germany
| | - Ruth Nord
- Institute of Virology, Saarland University Medical School, 66421 Homburg, Germany
| | - Thomas Pfitzner
- Institute of Virology, Saarland University Medical School, 66421 Homburg, Germany
| | - Maryam Yazdani
- Institute of Virology, Saarland University Medical School, 66421 Homburg, Germany
| | - Monika Vilimova
- Institute of Virology, Saarland University Medical School, 66421 Homburg, Germany
| | - Tim Kehl
- Center for Bioinformatics, Saarland University, 66041 Saarbrücken, Germany
| | - Hans-Peter Lenhof
- Center for Bioinformatics, Saarland University, 66041 Saarbrücken, Germany
| | - Stephan E. Philipp
- Experimental and Clinical Pharmacology and Toxicology, Saarland University Medical School, 66421 Homburg, Germany
| | - Eckart Meese
- Institute of Human Genetics, Saarland University, 66421 Homburg, Germany
| | - Thomas Fröhlich
- Laboratory for Functional Genome Analysis (LAFUGA), Gene Center, Ludwig-Maximilians-University Munich, 81377 Munich, Germany
| | - Friedrich A. Grässer
- Institute of Virology, Saarland University Medical School, 66421 Homburg, Germany
- Correspondence: (F.A.G.); (M.H.)
| | - Martin Hart
- Institute of Human Genetics, Saarland University, 66421 Homburg, Germany
- Correspondence: (F.A.G.); (M.H.)
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Loss of RBMS1 as a regulatory target of miR-106b influences cell growth, gap closing and colony forming in prostate carcinoma. Sci Rep 2020; 10:18022. [PMID: 33093529 PMCID: PMC7582885 DOI: 10.1038/s41598-020-75083-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 10/12/2020] [Indexed: 01/22/2023] Open
Abstract
Prostate carcinoma (PCa) is the second most commonly diagnosed cancer in males worldwide. Among hereditary genetic mutations and nutrient factors, a link between the deregulation of microRNA (miRNA) expression and the development of prostate carcinoma is assumed. MiRNAs are small non-coding RNAs which post-transcriptionally regulate gene expression and which are involved in tumour development and progression as oncogenes or tumour suppressors. Although many genes could be confirmed as targets for deregulated miRNAs, the impact of differentially expressed miRNA and their regulatory target genes on prostate tumour development and progression are not fully understood yet. We could validate RBMS1, a barely described RNA-binding protein, as a new target gene for oncogenic miR-106b, which was identified as an induced miRNA in PCa. Further analysis revealed a loss of RBMS1 expression in prostate tumours compared to corresponding normal tissue. Overexpression of RBMS1 in DU145 and LNCaP prostate cancer cells resulted in diminished cell proliferation, colony forming ability as well as in retarded gap closing. Our results demonstrate for the first time a miR-106b dependent downregulation of RBMS1 in prostate carcinoma. Additionally, we show new tumour suppressive properties of RBMS1 whose observed loss may further elucidate the development of PCa.
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Moh-Moh-Aung A, Fujisawa M, Ito S, Katayama H, Ohara T, Ota Y, Yoshimura T, Matsukawa A. Decreased miR-200b-3p in cancer cells leads to angiogenesis in HCC by enhancing endothelial ERG expression. Sci Rep 2020; 10:10418. [PMID: 32591615 PMCID: PMC7320004 DOI: 10.1038/s41598-020-67425-4] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Accepted: 06/03/2020] [Indexed: 12/13/2022] Open
Abstract
Transcription factor ERG (erythroblast transformation-specific (ETS)-related gene) is essential in endothelial differentiation and angiogenesis, in which microRNA (miR)-200b-3p targeting site is expected by miRNA target prediction database. miR-200b is known decreased in hepatocellular carcinoma (HCC), however, the functional relation between ERG and miR-200b-3p, originating from pre-miR-200b, in HCC angiogenesis remains unclear. We investigated whether hepatocyte-derived miR-200b-3p governs angiogenesis in HCC by targeting endothelial ERG. Levels of miR-200b-3p in HCC tissues were significantly lower than those in adjacent non-HCC tissues. Poorly differentiated HCC cell line expressed lower level of miR-200b-3p compared to well-differentiated HCC cell lines. The numbers of ERG-positive endothelial cells were higher in HCC tissues than in adjacent non-HCC tissues. There was a negative correlation between the number of ERG-positive cells and miR-200b-3p expression in HCC tissues. Culture supernatants of HCC cell lines with miR-200b-3p-overexpression reduced cell migration, proliferation and tube forming capacity in endothelial cells relative to the control, while those with miR-200b-3p-inhibition augmented the responses. Exosomes isolated from HCC culture supernatants with miR-200b-3p overexpression suppressed endothelial ERG expression. These results suggest that exosomal miR-200b-3p from hepatocytes suppresses endothelial ERG expression, and decreased miR-200b-3p in cancer cells promotes angiogenesis in HCC tissues by enhancing endothelial ERG expression.
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Affiliation(s)
- Aye Moh-Moh-Aung
- Department of Pathology and Experimental Medicine, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 2-5-1 Shikata, Kita-ku, Okayama, 700-8558, Japan
| | - Masayoshi Fujisawa
- Department of Pathology and Experimental Medicine, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 2-5-1 Shikata, Kita-ku, Okayama, 700-8558, Japan
| | - Sachio Ito
- Department of Molecular Oncology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 2-5-1 Shikata, Kita-ku, Okayama, 700-8558, Japan
| | - Hiroshi Katayama
- Department of Molecular Oncology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 2-5-1 Shikata, Kita-ku, Okayama, 700-8558, Japan
| | - Toshiaki Ohara
- Department of Pathology and Experimental Medicine, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 2-5-1 Shikata, Kita-ku, Okayama, 700-8558, Japan
| | - Yoko Ota
- Department of Pathology and Experimental Medicine, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 2-5-1 Shikata, Kita-ku, Okayama, 700-8558, Japan
| | - Teizo Yoshimura
- Department of Pathology and Experimental Medicine, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 2-5-1 Shikata, Kita-ku, Okayama, 700-8558, Japan
| | - Akihiro Matsukawa
- Department of Pathology and Experimental Medicine, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 2-5-1 Shikata, Kita-ku, Okayama, 700-8558, Japan.
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Eckstein M, Sailer V, Nielsen BS, Wittenberg T, Wiesmann V, Lieb V, Nolte E, Hartmann A, Kristiansen G, Wernert N, Wullich B, Taubert H, Wach S. Co-staining of microRNAs and their target proteins by miRNA in situ hybridization and immunohistofluorescence on prostate cancer tissue microarrays. J Transl Med 2019; 99:1527-1534. [PMID: 31186527 DOI: 10.1038/s41374-019-0251-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Revised: 04/01/2019] [Accepted: 04/01/2019] [Indexed: 01/31/2023] Open
Abstract
The co-expression of miRNAs and their target proteins was studied on tissue microarrays from different prostate cancer (PCa) patients. PCa of primary Gleason pattern 4 (GP4), lymph node metastases of GP4, distant metastases, and normal tissue from the transitional and peripheral zones were co-stained by fluorescent miRNA in situ hybridization (miRisH) and protein immunohistofluorescence (IHF). The miRNAs and corresponding target proteins include the pairs miR-145/ERG, miR-143/uPAR, and miR-375/SEC23A. The fluorescence-stained and scanned tissue microarrays (TMAs) were evaluated by experienced uropathologists. The pair miR-145/ERG showed an exclusive staining for miR-145 in the nuclei of stromal cells, both in tumor and normal tissue, and for ERG in the cytoplasm with/without co-expression in the nucleus of tumor cells. The pair miR-143/uPAR revealed a clear distinction between miR-143 in the nuclei of stromal cells and uPAR staining in the cytoplasm of tumor cells. Metastases (lymph node and distant) however, showed tumor cells with cytoplasmic staining for miR-143/uPAR. In normal tissues, beside the nuclei of the stroma cells, gland cells could also express miR-143 and uPAR in the cytoplasm. miR-375 showed particular staining in the nucleoli of GP4 and metastatic samples, suggesting that nucleoli play a special role in sequestering proteins and miRNAs. Combined miRisH/IHF allows for the study of miRNA expression patterns and their target proteins at the single-cell level.
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Affiliation(s)
- Markus Eckstein
- Institute of Pathology, University Hospital Erlangen, FAU Erlangen-Nürnberg, Erlangen, Germany
| | - Verena Sailer
- Institute of Pathology, University Hospital Bonn, Bonn, Germany.,Department of Pathology and Laboratory Medicine, Weill Cornell Medicine of Cornell University, New York, NY, USA
| | | | | | - Veit Wiesmann
- Fraunhofer Institute for Integrated Circuits IIS, Erlangen, Germany
| | - Verena Lieb
- Department of Urology and Pediatric Urology, University Hospital Erlangen, FAU Erlangen-Nürnberg, Erlangen, Germany
| | - Elke Nolte
- Department of Urology and Pediatric Urology, University Hospital Erlangen, FAU Erlangen-Nürnberg, Erlangen, Germany
| | - Arndt Hartmann
- Institute of Pathology, University Hospital Erlangen, FAU Erlangen-Nürnberg, Erlangen, Germany
| | | | - Nicolas Wernert
- Institute of Pathology, University Hospital Bonn, Bonn, Germany
| | - Bernd Wullich
- Department of Urology and Pediatric Urology, University Hospital Erlangen, FAU Erlangen-Nürnberg, Erlangen, Germany
| | - Helge Taubert
- Department of Urology and Pediatric Urology, University Hospital Erlangen, FAU Erlangen-Nürnberg, Erlangen, Germany.
| | - Sven Wach
- Department of Urology and Pediatric Urology, University Hospital Erlangen, FAU Erlangen-Nürnberg, Erlangen, Germany
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Ensemble of decision tree reveals potential miRNA-disease associations. PLoS Comput Biol 2019; 15:e1007209. [PMID: 31329575 PMCID: PMC6675125 DOI: 10.1371/journal.pcbi.1007209] [Citation(s) in RCA: 140] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 08/01/2019] [Accepted: 06/24/2019] [Indexed: 12/14/2022] Open
Abstract
In recent years, increasing associations between microRNAs (miRNAs) and human diseases have been identified. Based on accumulating biological data, many computational models for potential miRNA-disease associations inference have been developed, which saves time and expenditure on experimental studies, making great contributions to researching molecular mechanism of human diseases and developing new drugs for disease treatment. In this paper, we proposed a novel computational method named Ensemble of Decision Tree based MiRNA-Disease Association prediction (EDTMDA), which innovatively built a computational framework integrating ensemble learning and dimensionality reduction. For each miRNA-disease pair, the feature vector was extracted by calculating the statistical measures, graph theoretical measures, and matrix factorization results for the miRNA and disease, respectively. Then multiple base learnings were built to yield many decision trees (DTs) based on random selection of negative samples and miRNA/disease features. Particularly, Principal Components Analysis was applied to each base learning to reduce feature dimensionality and hence remove the noise or redundancy. Average strategy was adopted for these DTs to get final association scores between miRNAs and diseases. In model performance evaluation, EDTMDA showed AUC of 0.9309 in global leave-one-out cross validation (LOOCV) and AUC of 0.8524 in local LOOCV. Additionally, AUC of 0.9192+/-0.0009 in 5-fold cross validation proved the model's reliability and stability. Furthermore, three types of case studies for four human diseases were implemented. As a result, 94% (Esophageal Neoplasms), 86% (Kidney Neoplasms), 96% (Breast Neoplasms) and 88% (Carcinoma Hepatocellular) of top 50 predicted miRNAs were confirmed by experimental evidences in literature.
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Hart M, Walch-Rückheim B, Krammes L, Kehl T, Rheinheimer S, Tänzer T, Glombitza B, Sester M, Lenhof HP, Keller A, Meese E. miR-34a as hub of T cell regulation networks. J Immunother Cancer 2019; 7:187. [PMID: 31311583 PMCID: PMC6636054 DOI: 10.1186/s40425-019-0670-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Accepted: 07/08/2019] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Micro(mi)RNAs are increasingly recognized as central regulators of immune cell function. While it has been predicted that miRNAs have multiple targets, the majority of these predictions still await experimental confirmation. Here, miR-34a, a well-known tumor suppressor, is analyzed for targeting genes involved in immune system processes of leucocytes. METHODS Using an in-silico approach, we combined miRNA target prediction with GeneTrail2, a web tool for Multi-omics enrichment analysis, to identify miR-34a target genes, which are involved in the immune system process subcategory of Gene Ontology. RESULTS Out of the 193 predicted target genes in this subcategory we experimentally tested 22 target genes and confirmed binding of miR-34a to 14 target genes including VAMP2, IKBKE, MYH9, MARCH8, KLRK1, CD11A, TRAFD1, CCR1, PYDC1, PRF1, PIK3R2, PIK3CD, AP1B1, and ADAM10 by dual luciferase assays. By transfecting Jurkat, primary CD4+ and CD8+ T cells with miR-34a, we demonstrated that ectopic expression of miR-34a leads to reduced levels of endogenous VAMP2 and CD11A, which are central to the analyzed subcategories. Functional downstream analysis of miR-34a over-expression in activated CD8+ T cells exhibits a distinct decrease of PRF1 secretion. CONCLUSIONS By simultaneous targeting of 14 mRNAs miR-34a acts as major hub of T cell regulatory networks suggesting to utilize miR-34a as target of intervention towards a modulation of the immune responsiveness of T-cells in a broad tumor context.
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Affiliation(s)
- Martin Hart
- Institute of Human Genetics, Saarland University, Building 60, 66421, Homburg, Germany.
| | - Barbara Walch-Rückheim
- Institute of Virology and Center of Human and Molecular Biology, Saarland University, 66421, Homburg, Germany
| | - Lena Krammes
- Institute of Human Genetics, Saarland University, Building 60, 66421, Homburg, Germany
| | - Tim Kehl
- Center for Bioinformatics, Saarland University, 66123, Saarbrücken, Germany
| | - Stefanie Rheinheimer
- Institute of Human Genetics, Saarland University, Building 60, 66421, Homburg, Germany
| | - Tanja Tänzer
- Institute of Virology and Center of Human and Molecular Biology, Saarland University, 66421, Homburg, Germany
| | - Birgit Glombitza
- Institute of Virology and Center of Human and Molecular Biology, Saarland University, 66421, Homburg, Germany
| | - Martina Sester
- Department of Transplant and Infection Immunology, Saarland University, 66421, Homburg, Germany
| | - Hans-Peter Lenhof
- Center for Bioinformatics, Saarland University, 66123, Saarbrücken, Germany
| | - Andreas Keller
- Chair for Clinical Bioinformatics, Saarland University, 66123, Saarbrücken, Germany
| | - Eckart Meese
- Institute of Human Genetics, Saarland University, Building 60, 66421, Homburg, Germany
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12
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Tang C, Zhou H, Zheng X, Zhang Y, Sha X. Dual Laplacian regularized matrix completion for microRNA-disease associations prediction. RNA Biol 2019; 16:601-611. [PMID: 30676207 PMCID: PMC6546388 DOI: 10.1080/15476286.2019.1570811] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2018] [Revised: 11/30/2018] [Accepted: 01/03/2019] [Indexed: 01/21/2023] Open
Abstract
Since lots of miRNA-disease associations have been verified, it is meaningful to discover more miRNA-disease associations for serving disease diagnosis and prevention of human complex diseases. However, it is not practical to identify potential associations using traditional biological experimental methods since the process is expensive and time consuming. Therefore, it is necessary to develop efficient computational methods to accomplish this task. In this work, we introduced a matrix completion model with dual Laplacian regularization (DLRMC) to infer unknown miRNA-disease associations in heterogeneous omics data. Specifically, DLRMC transformed the task of miRNA-disease association prediction into a matrix completion problem, in which the potential missing entries of the miRNA-disease association matrix were calculated, the missing association can be obtained based on the prediction scores after the completion procedure. Meanwhile, the miRNA functional similarity and the disease semantic similarity were fully exploited to serve the miRNA-disease association matrix completion by using a dual Laplacian regularization term. In the experiments, we conducted global and local Leave-One-Out Cross Validation (LOOCV) and case studies to evaluate the efficacy of DLRMC on the Human miRNA-disease associations dataset obtained from the HMDDv2.0 database. As a result, the AUCs of DLRMC is 0.9174 and 0.8289 in global LOOCV and local LOOCV, respectively, which significantly outperform a variety of previous methods. In addition, in the case studies on four significant diseases related to human health including Colon Neoplasms, Kidney neoplasms, Lymphoma and Prostate neoplasms, 90%, 92%, 92% and 94% out of the top 50 predicted miRNAs has been confirmed, respectively.
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Affiliation(s)
- Chang Tang
- School of Computer Science, China University of Geosciences, Wuhan, China
| | - Hua Zhou
- Department of Hematology, The Affiliated Huai’an Hospital of Xuzhou Medical University, Huai’an, China
| | - Xiao Zheng
- Wuhan University of Technology Hospital, Wuhan University of Technology, Wuhan, China
| | - Yanming Zhang
- Department of Hematology, The Affiliated Huai’an Hospital of Xuzhou Medical University, Huai’an, China
| | - Xiaofeng Sha
- Department of Oncology, Huai’an Hongze District People’s Hospital, Huai’an, China
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13
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Yu DL, Ma YL, Yu ZG. Inferring microRNA-disease association by hybrid recommendation algorithm and unbalanced bi-random walk on heterogeneous network. Sci Rep 2019; 9:2474. [PMID: 30792474 PMCID: PMC6385311 DOI: 10.1038/s41598-019-39226-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Accepted: 01/18/2019] [Indexed: 02/04/2023] Open
Abstract
More and more research works have indicated that microRNAs (miRNAs) play indispensable roles in exploring the pathogenesis of diseases. Detecting miRNA-disease associations by experimental techniques in biology is expensive and time-consuming. Hence, it is important to propose reliable and accurate computational methods to exploring potential miRNAs related diseases. In our work, we develop a novel method (BRWHNHA) to uncover potential miRNAs associated with diseases based on hybrid recommendation algorithm and unbalanced bi-random walk. We first integrate the Gaussian interaction profile kernel similarity into the miRNA functional similarity network and the disease semantic similarity network. Then we calculate the transition probability matrix of bipartite network by using hybrid recommendation algorithm. Finally, we adopt unbalanced bi-random walk on the heterogeneous network to infer undiscovered miRNA-disease relationships. We tested BRWHNHA on 22 diseases based on five-fold cross-validation and achieves reliable performance with average AUC of 0.857, which an area under the ROC curve ranging from 0.807 to 0.924. As a result, BRWHNHA significantly improves the performance of inferring potential miRNA-disease association compared with previous methods. Moreover, the case studies on lung neoplasms and prostate neoplasms also illustrate that BRWHNHA is superior to previous prediction methods and is more advantageous in exploring potential miRNAs related diseases. All source codes can be downloaded from https://github.com/myl446/BRWHNHA.
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Affiliation(s)
- Dong-Ling Yu
- Key Laboratory of Intelligent Computing and Information Processing of Ministry of Education and Hunan Key Laboratory for Computation and Simulation in Science and Engineering, Xiangtan University, Xiangtan, Hunan 411105, P.R. China
| | - Yuan-Lin Ma
- Key Laboratory of Intelligent Computing and Information Processing of Ministry of Education and Hunan Key Laboratory for Computation and Simulation in Science and Engineering, Xiangtan University, Xiangtan, Hunan 411105, P.R. China
| | - Zu-Guo Yu
- Key Laboratory of Intelligent Computing and Information Processing of Ministry of Education and Hunan Key Laboratory for Computation and Simulation in Science and Engineering, Xiangtan University, Xiangtan, Hunan 411105, P.R. China. .,School of Electrical Engineering and Computer Science, Queensland University of Technology, Brisbane, Q4001, Australia.
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14
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Lei B, Tian Z, Fan W, Ni B. Circular RNA: a novel biomarker and therapeutic target for human cancers. Int J Med Sci 2019; 16:292-301. [PMID: 30745810 PMCID: PMC6367529 DOI: 10.7150/ijms.28047] [Citation(s) in RCA: 247] [Impact Index Per Article: 49.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Accepted: 12/04/2018] [Indexed: 12/11/2022] Open
Abstract
Circular (circ)RNAs, a newly recognized class of noncoding RNA, have been implicated in the occurrence and development of several diseases, including neurological and cardiovascular diseases. Studies of human tumors, including those of liver cancer, gastric cancer, lung cancer and colorectal cancer, have shown differential expression profiles of circRNAs, suggesting regulatory roles in cancer pathogenesis and metastasis. In this review, we discuss the most recent research into tumor-related circRNAs, providing a comprehensive summary of the expression or/and function of these circRNAs and proposing rational perspectives on the potential clinical application of circRNAs as helpful biomarkers or therapeutic targets in human tumors.
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Affiliation(s)
- Bo Lei
- Department of Pathophysiology, Third Military Medical University, Chongqing 400038, China.,Department of Microbiology and Immunology, Shanxi Medical University, Taiyuan 030001, China
| | - Zhiqiang Tian
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
| | - Weiping Fan
- Department of Microbiology and Immunology, Shanxi Medical University, Taiyuan 030001, China
| | - Bing Ni
- Department of Pathophysiology, Third Military Medical University, Chongqing 400038, China
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15
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Aghdam SG, Ebrazeh M, Hemmatzadeh M, Seyfizadeh N, Shabgah AG, Azizi G, Ebrahimi N, Babaie F, Mohammadi H. The role of microRNAs in prostate cancer migration, invasion, and metastasis. J Cell Physiol 2018; 234:9927-9942. [PMID: 30536403 DOI: 10.1002/jcp.27948] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2018] [Accepted: 10/23/2018] [Indexed: 12/12/2022]
Abstract
Prostate cancer (PCa) is considered the most prevalent malignancy and the second major cause of cancer-related death in males from Western countries. PCa exhibits variable clinical pictures, ranging from dormant to highly metastatic cancer. PCa suffers from poor prognosis and diagnosis markers, and novel biomarkers are required to define disease stages and to design appropriate therapeutic approach by considering the possible genomic and epigenomic differences. MicroRNAs (miRNAs) comprise a class of small noncoding RNAs, which have remarkable functions in cell formation, differentiation, and cancer development and contribute in these processes through controlling the expressions of protein-coding genes by repressing translation or breaking down the messenger RNA in a sequence-specific method. miRNAs in cancer are able to reflect informative data about the current status of disease and this might benefit PCa prognosis and diagnosis since that is concerned to PCa patients and we intend to highlight it in this paper.
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Affiliation(s)
- Shirin Golabi Aghdam
- Department of Immunology, School of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mehrdad Ebrazeh
- Department of Laboratory Medicine, Shahid Motahari Hospital, Urmia University of Medical Sciences, Urmia, Iran
| | - Maryam Hemmatzadeh
- Department of Immunology, School of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.,Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Narges Seyfizadeh
- Department of Medical Oncology, National Center for Tumor Diseases, Heidelberg University Hospital, Heidelberg, Germany
| | | | - Gholamreza Azizi
- Non-Communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran.,Department of Immunology, School of Medicine, Alborz University of Medical Sciences, Karaj, Iran
| | - Negin Ebrahimi
- Department of Immunology, School of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Farhad Babaie
- Cellular and Molecular Research Center, Urmia University of Medical Sciences, Urmia, Iran
| | - Hamed Mohammadi
- Department of Immunology, School of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
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16
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Iscaife A, Reis ST, Morais DR, Viana NI, da Silva IA, Pimenta R, Bordini A, Dip N, Srougi M, Leite KRM. Treating metastatic prostate cancer with microRNA-145. Apoptosis 2018; 23:388-395. [PMID: 29858716 DOI: 10.1007/s10495-018-1461-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Prostate cancer (PCa) is an incurable disease at the metastatic stage. Although there are different options for treatment, the results are limited. MicroRNAs (miRNAs) are a group of small, noncoding, regulatory RNAs with important roles in regulating gene expression. miR-145 is reported to be a key tumor suppressor miRNA (tsmiR) that controls important oncogenes, such as MYC and RAS. In this study, in vitro studies were performed to show the control of MYC and RAS by miR-145. Flow cytometry was used to analyze cell proliferation and apoptosis. The efficacy of miR-145 in treating metastatic PCa was tested in nude mice using a model of bone metastasis promoted by intraventricular injection of PC-3MLuc-C6 cells. Tumor growth was evaluated by an in vivo bioluminescence system. After the full establishment of metastases on day 21, six animals were treated with three intravenous doses of miR-145 (on days 21, 24 and 27), and six were injected with scramble miRNA as controls. Compared to the controls, tumor growth was significantly reduced in animals receiving miR-145, most importantly on day 7 after the third and last dose of miRNA. After discontinuing the treatment, tumor growth resumed, becoming similar to the group of non-treated animals. A decrease in MYC and RAS expression was observed in all cell lines after treatment with miR-145, although statistical significance was achieved only in experiments with LNCaP and PC3 cell lines, with a decrease in 56% (p = 0.012) and 31% (p = 0.013) of RAS expression, respectively. Our results suggest that miR-145 is a potential molecule to be tested for treatment of metastatic, castration-resistant PCa.
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Affiliation(s)
- Alexandre Iscaife
- Laboratorio de Investigação Medica da Disciplina de Urologia - LIM 55, Faculdade de Medicina FMUSP, Universidade de Sao Paulo, Av. Dr Arnaldo, 455, Sala 2145, São Paulo, SP, Brazil.
| | - Sabrina Thalita Reis
- Laboratorio de Investigação Medica da Disciplina de Urologia - LIM 55, Faculdade de Medicina FMUSP, Universidade de Sao Paulo, Av. Dr Arnaldo, 455, Sala 2145, São Paulo, SP, Brazil
| | - Denis Reis Morais
- Laboratorio de Investigação Medica da Disciplina de Urologia - LIM 55, Faculdade de Medicina FMUSP, Universidade de Sao Paulo, Av. Dr Arnaldo, 455, Sala 2145, São Paulo, SP, Brazil
| | - Nayara Izabel Viana
- Laboratorio de Investigação Medica da Disciplina de Urologia - LIM 55, Faculdade de Medicina FMUSP, Universidade de Sao Paulo, Av. Dr Arnaldo, 455, Sala 2145, São Paulo, SP, Brazil
| | - Iran Amorim da Silva
- Laboratorio de Investigação Medica da Disciplina de Urologia - LIM 55, Faculdade de Medicina FMUSP, Universidade de Sao Paulo, Av. Dr Arnaldo, 455, Sala 2145, São Paulo, SP, Brazil
| | - Ruan Pimenta
- Laboratorio de Investigação Medica da Disciplina de Urologia - LIM 55, Faculdade de Medicina FMUSP, Universidade de Sao Paulo, Av. Dr Arnaldo, 455, Sala 2145, São Paulo, SP, Brazil
| | - Andre Bordini
- Laboratorio de Investigação Medica da Disciplina de Urologia - LIM 55, Faculdade de Medicina FMUSP, Universidade de Sao Paulo, Av. Dr Arnaldo, 455, Sala 2145, São Paulo, SP, Brazil
| | - Nelson Dip
- Laboratorio de Investigação Medica da Disciplina de Urologia - LIM 55, Faculdade de Medicina FMUSP, Universidade de Sao Paulo, Av. Dr Arnaldo, 455, Sala 2145, São Paulo, SP, Brazil
| | - Miguel Srougi
- Laboratorio de Investigação Medica da Disciplina de Urologia - LIM 55, Faculdade de Medicina FMUSP, Universidade de Sao Paulo, Av. Dr Arnaldo, 455, Sala 2145, São Paulo, SP, Brazil
| | - Katia Ramos Moreira Leite
- Laboratorio de Investigação Medica da Disciplina de Urologia - LIM 55, Faculdade de Medicina FMUSP, Universidade de Sao Paulo, Av. Dr Arnaldo, 455, Sala 2145, São Paulo, SP, Brazil
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17
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Dankert JT, Wiesehöfer M, Czyrnik ED, Singer BB, von Ostau N, Wennemuth G. The deregulation of miR-17/CCND1 axis during neuroendocrine transdifferentiation of LNCaP prostate cancer cells. PLoS One 2018; 13:e0200472. [PMID: 30001402 PMCID: PMC6042731 DOI: 10.1371/journal.pone.0200472] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Accepted: 06/27/2018] [Indexed: 12/20/2022] Open
Abstract
Prostate carcinoma contain foci of neuroendocrine transdifferentiation, resulting in an increase of androgen-independent neuroendocrine-like (NE) tumor cells, whose number significantly correlates with tumor aggressiveness and thus lower survival rate. Neuroendocrine transdifferentiation of prostate cancer cells and a potential role of miRNAs within this process are poorly understood. MicroRNAs are small non-coding RNAs which post-transcriptionally regulate gene expression. The aim of this project was to identify new genes and miRNAs involved in neuroendocrine transdifferentiation. LNCaP prostate cancer cells were differentiated to NE-like cancer cells and microarray analyses were performed. Microarray results have been validated for the eight most deregulated mRNAs and microRNAs via qRT-PCR and analyzed with different algorithms to predict new targets for deregulated microRNAs. The induced CyclinD1 gene could be validated as new target gene for the repressed miR-17 family containing miR-17, miR-20a, miR-20b, miR-106a and miR-106b via reporter gene assays and Western Blot. Functional analysis of miR-17 family shows a high influence on cell proliferation, colony forming ability and apoptosis in LNCaP cells. Our data demonstrate wide changes in mRNA and microRNA expression during neuroendocrine transdifferentiation of LNCaP cells and confirm new mRNA-miRNA interactions with potential roles in NE-transdifferentiation of prostate carcinoma.
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Affiliation(s)
- Jaroslaw Thomas Dankert
- Institute of Anatomy, University Hospital, Duisburg-Essen University, Essen, Germany
- * E-mail:
| | - Marc Wiesehöfer
- Institute of Anatomy, University Hospital, Duisburg-Essen University, Essen, Germany
| | - Elena Dilara Czyrnik
- Institute of Anatomy, University Hospital, Duisburg-Essen University, Essen, Germany
| | - Bernhard B. Singer
- Institute of Anatomy, University Hospital, Duisburg-Essen University, Essen, Germany
| | - Nicola von Ostau
- Institute of Anatomy, University Hospital, Duisburg-Essen University, Essen, Germany
| | - Gunther Wennemuth
- Institute of Anatomy, University Hospital, Duisburg-Essen University, Essen, Germany
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18
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Khorasani M, Teimoori-Toolabi L, Farivar TN, Asgari M, Abolhasani M, Shahrokh H, Afgar A, Kalantari E, Peymani A, Mahdian R. Aberrant expression of miR-141 and nuclear receptor small heterodimer partner in clinical samples of prostate cancer. Cancer Biomark 2018; 22:19-28. [DOI: 10.3233/cbm-170696] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Maryam Khorasani
- Department of Molecular Medicine, School of Medicine, Qazvin University of Medical Sciences, Qazvin, Iran
| | | | | | - Mojgan Asgari
- Oncopathology Research Center, Iran University of Medical Sciences, Tehran, Iran
- Department of Pathology, Hasheminejad Kidney Center, Iran University of Medical Sciences, Tehran, Iran
| | - Maryam Abolhasani
- Oncopathology Research Center, Iran University of Medical Sciences, Tehran, Iran
- Department of Pathology, Hasheminejad Kidney Center, Iran University of Medical Sciences, Tehran, Iran
| | - Hossein Shahrokh
- Department of Uro-oncology, Hasheminejad Kidney Center, Iran University of Medical Sciences, Tehran, Iran
| | - Ali Afgar
- Molecular Medicine Department, Pasteur Institute of Iran, Tehran, Iran
| | - Elham Kalantari
- Oncopathology Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Amir Peymani
- Medical Microbiology Research Center, Qazvin University of Medical Sciences, Qazvin, Iran
| | - Reza Mahdian
- Molecular Medicine Department, Pasteur Institute of Iran, Tehran, Iran
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19
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Zoni E, Karkampouna S, Thalmann GN, Kruithof-de Julio M, Spahn M. Emerging aspects of microRNA interaction with TMPRSS2-ERG and endocrine therapy. Mol Cell Endocrinol 2018; 462:9-16. [PMID: 28189568 DOI: 10.1016/j.mce.2017.02.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2016] [Revised: 12/22/2016] [Accepted: 02/07/2017] [Indexed: 11/22/2022]
Abstract
Prostate cancer (PCa) is the most common malignancy detected in males and the second most common cause of cancer death in western countries. The development of the prostate gland, is finely regulated by androgens which modulate also its growth and function. Importantly, androgens exert a major role in PCa formation and progression and one of the hypothesized mechanism proposed has been linked to the chromosomal rearrangement of the androgen regulated gene TMPRSS2 with ERG. Androgens have been therefore used as main target for therapies in the past. However, despite the development of endocrine therapies (e.g. androgen ablation), when PCa progress, tumors become resistant to this therapeutic castration and patients develop incurable metastases. A strategy to better understand how patients respond to therapy, in order to achieve a better patient stratification, consists in monitoring the levels of small noncoding RNAs (microRNAs). microRNAs are a class of small molecules that regulate protein abundance and their application as biomarkers to monitor disease progression has been intensely studied in the last years. In this review, we highlight the interactions between microRNAs and endocrine-related aspects of PCa in tissues. We focus on the modulation of TMPRSS2-ERG and Glucocorticoid Receptor (GR) by microRNAs and detail the influence of steroidal hormonal therapies on microRNAs expression.
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Affiliation(s)
- Eugenio Zoni
- Urology Research Laboratory, Department of Urology, University of Bern, Bern, Switzerland; Department of Clinical Research, University of Bern, Bern, Switzerland
| | - Sofia Karkampouna
- Urology Research Laboratory, Department of Urology, University of Bern, Bern, Switzerland; Department of Clinical Research, University of Bern, Bern, Switzerland
| | - George N Thalmann
- Urology Research Laboratory, Department of Urology, University of Bern, Bern, Switzerland; Department of Clinical Research, University of Bern, Bern, Switzerland; Department of Urology, Bern University Hospital, Bern, Switzerland
| | - Marianna Kruithof-de Julio
- Urology Research Laboratory, Department of Urology, University of Bern, Bern, Switzerland; Department of Clinical Research, University of Bern, Bern, Switzerland; Urology Research Laboratory, Department of Urology, Leiden University Medical Center, Leiden, The Netherlands
| | - Martin Spahn
- Urology Research Laboratory, Department of Urology, University of Bern, Bern, Switzerland; Department of Urology, Bern University Hospital, Bern, Switzerland.
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20
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Hart M, Rheinheimer S, Leidinger P, Backes C, Menegatti J, Fehlmann T, Grässer F, Keller A, Meese E. Identification of miR-34a-target interactions by a combined network based and experimental approach. Oncotarget 2018; 7:34288-99. [PMID: 27144431 PMCID: PMC5085156 DOI: 10.18632/oncotarget.9103] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Accepted: 04/16/2016] [Indexed: 12/25/2022] Open
Abstract
Circulating miRNAs have been associated with numerous human diseases. The lack of understanding the functional roles of blood-born miRNAs limits, however, largely their value as disease marker. In a systems biology analysis we identified miR-34a as strongly associated with pathogenesis. Genome-wide analysis of miRNAs in blood cell fractions highlighted miR-34a as most significantly up-regulated in CD3+ cells of lung cancer patients. By our in silico analysis members of the protein kinase C family (PKC) were indicated as miR-34a target genes. Using a luciferase assay, we confirmed binding of miR-34a-5p to target sequences within the 3′UTRs of five PKC family members. To verify the biological effect, we transfected HEK 293T and Jurkat cells with miR-34a-5p causing reduced endogenous protein levels of PKC isozymes. By combining bioinformatics approaches with experimental validation, we demonstrate that one of the most relevant disease associated miRNAs has the ability to control the expression of a gene family.
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Affiliation(s)
- Martin Hart
- Institute of Human Genetics, Saarland University, 66421 Homburg, Germany
| | | | - Petra Leidinger
- Institute of Human Genetics, Saarland University, 66421 Homburg, Germany
| | - Christina Backes
- Chair for Clinical Bioinformatics, Saarland University, 66123 Saarbrücken, Germany
| | - Jennifer Menegatti
- Institute of Virology, Saarland University Medical School, 66421 Homburg, Germany
| | - Tobias Fehlmann
- Chair for Clinical Bioinformatics, Saarland University, 66123 Saarbrücken, Germany
| | - Friedrich Grässer
- Institute of Virology, Saarland University Medical School, 66421 Homburg, Germany
| | - Andreas Keller
- Chair for Clinical Bioinformatics, Saarland University, 66123 Saarbrücken, Germany
| | - Eckart Meese
- Institute of Human Genetics, Saarland University, 66421 Homburg, Germany
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21
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Xie H, Ren X, Xin S, Lan X, Lu G, Lin Y, Yang S, Zeng Z, Liao W, Ding YQ, Liang L. Emerging roles of circRNA_001569 targeting miR-145 in the proliferation and invasion of colorectal cancer. Oncotarget 2018; 7:26680-91. [PMID: 27058418 PMCID: PMC5042007 DOI: 10.18632/oncotarget.8589] [Citation(s) in RCA: 361] [Impact Index Per Article: 60.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Accepted: 03/07/2016] [Indexed: 12/14/2022] Open
Abstract
Circular RNAs (circRNAs), a large class of RNAs, have recently shown huge capabilities as gene regulators in mammals. Some of them bind with microRNAs (miRNAs) and act as natural miRNA sponges to inhibit related miRNAs’ activities. Here we showed that hsa_circ_001569 acted as a positive regulator in cell proliferation and invasion of colorectal cancer (CRC). Moreover, hsa_circ_001569 was identified as a sponge of miR-145 and up-regulated miR-145 functional targets E2F5, BAG4 and FMNL2. In CRC tissues, circ_001569 negatively correlated with miR-145, and miR-145 correlated negatively with E2F5, BAG4 and FMNL2 expressions. Our study reveals a novel regulatory mechanism of circ_001569 in cell proliferation and invasion in CRC, provides a comprehensive landscape of circ_001569 that will facilitate further biomarker discoveries in the progression of CRC.
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Affiliation(s)
- Huijun Xie
- Department of Pathology, Nanfang Hospital, Guangzhou, Guangdong, China.,Guangdong Province Key Laboratory of Molecular Tumor Pathology, Guangzhou, Guangdong, China
| | - Xiaoli Ren
- Department of Pathology, Nanfang Hospital, Guangzhou, Guangdong, China.,Guangdong Province Key Laboratory of Molecular Tumor Pathology, Guangzhou, Guangdong, China
| | - Sainan Xin
- Department of Pathology, Nanfang Hospital, Guangzhou, Guangdong, China.,Guangdong Province Key Laboratory of Molecular Tumor Pathology, Guangzhou, Guangdong, China
| | - Xiaoliang Lan
- Department of General Surgery, Nanfang Hospital, Guangzhou, Guangdong, China
| | - Guifeng Lu
- Department of Pathology, Nanfang Hospital, Guangzhou, Guangdong, China.,Guangdong Province Key Laboratory of Molecular Tumor Pathology, Guangzhou, Guangdong, China
| | - Yuan Lin
- Department of Pathology, Nanfang Hospital, Guangzhou, Guangdong, China.,Guangdong Province Key Laboratory of Molecular Tumor Pathology, Guangzhou, Guangdong, China
| | - Shaoshan Yang
- Department of Pathology, Nanfang Hospital, Guangzhou, Guangdong, China.,Guangdong Province Key Laboratory of Molecular Tumor Pathology, Guangzhou, Guangdong, China
| | - Zhicheng Zeng
- Department of Pathology, Nanfang Hospital, Guangzhou, Guangdong, China.,Guangdong Province Key Laboratory of Molecular Tumor Pathology, Guangzhou, Guangdong, China
| | - Wenting Liao
- Department of Pathology, Nanfang Hospital, Guangzhou, Guangdong, China.,Guangdong Province Key Laboratory of Molecular Tumor Pathology, Guangzhou, Guangdong, China
| | - Yan-Qing Ding
- Department of Pathology, Nanfang Hospital, Guangzhou, Guangdong, China.,Guangdong Province Key Laboratory of Molecular Tumor Pathology, Guangzhou, Guangdong, China
| | - Li Liang
- Department of Pathology, Nanfang Hospital, Guangzhou, Guangdong, China.,Guangdong Province Key Laboratory of Molecular Tumor Pathology, Guangzhou, Guangdong, China
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22
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Fabbri E, Tamanini A, Jakova T, Gasparello J, Manicardi A, Corradini R, Sabbioni G, Finotti A, Borgatti M, Lampronti I, Munari S, Dechecchi MC, Cabrini G, Gambari R. A Peptide Nucleic Acid against MicroRNA miR-145-5p Enhances the Expression of the Cystic Fibrosis Transmembrane Conductance Regulator (CFTR) in Calu-3 Cells. Molecules 2017; 23:molecules23010071. [PMID: 29286300 PMCID: PMC6017273 DOI: 10.3390/molecules23010071] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Revised: 12/05/2017] [Accepted: 12/14/2017] [Indexed: 01/18/2023] Open
Abstract
Peptide nucleic acids (PNAs) are very useful tools for gene regulation at different levels, but in particular in the last years their use for targeting microRNA (anti-miR PNAs) has provided impressive advancements. In this respect, microRNAs related to the repression of cystic fibrosis transmembrane conductance regulator (CFTR) gene, which is defective in cystic fibrosis, are of great importance in the development of new type of treatments. In this paper we propose the use of an anti-miR PNA for targeting miR-145, a microRNA reported to suppress CFTR expression. Octaarginine-anti-miR PNA conjugates were delivered to Calu-3 cells, exerting sequence dependent targeting of miR-145-5p. This allowed to enhance expression of the miR-145 regulated CFTR gene, analyzed at mRNA (RT-qPCR, Reverse Transcription quantitative Polymerase Chain Reaction) and CFTR protein (Western blotting) level.
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Affiliation(s)
- Enrica Fabbri
- Department of Life Sciences and Biotechnology, University of Ferrara, 44121 Ferrara, Italy.
| | - Anna Tamanini
- Laboratory of Molecular Pathology, University-Hospital, 37126 Verona, Italy.
| | - Tiziana Jakova
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, 43124 Parma, Italy.
| | - Jessica Gasparello
- Department of Life Sciences and Biotechnology, University of Ferrara, 44121 Ferrara, Italy.
| | - Alex Manicardi
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, 43124 Parma, Italy.
| | - Roberto Corradini
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, 43124 Parma, Italy.
| | - Giuseppe Sabbioni
- Department of Life Sciences and Biotechnology, University of Ferrara, 44121 Ferrara, Italy.
| | - Alessia Finotti
- Department of Life Sciences and Biotechnology, University of Ferrara, 44121 Ferrara, Italy.
| | - Monica Borgatti
- Department of Life Sciences and Biotechnology, University of Ferrara, 44121 Ferrara, Italy.
| | - Ilaria Lampronti
- Department of Life Sciences and Biotechnology, University of Ferrara, 44121 Ferrara, Italy.
| | - Silvia Munari
- Laboratory of Molecular Pathology, University-Hospital, 37126 Verona, Italy.
| | | | - Giulio Cabrini
- Laboratory of Molecular Pathology, University-Hospital, 37126 Verona, Italy.
| | - Roberto Gambari
- Department of Life Sciences and Biotechnology, University of Ferrara, 44121 Ferrara, Italy.
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23
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Chen X, Guan NN, Li JQ, Yan GY. GIMDA: Graphlet interaction-based MiRNA-disease association prediction. J Cell Mol Med 2017; 22:1548-1561. [PMID: 29272076 PMCID: PMC5824414 DOI: 10.1111/jcmm.13429] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Accepted: 09/22/2017] [Indexed: 01/19/2023] Open
Abstract
MicroRNAs (miRNAs) have been confirmed to be closely related to various human complex diseases by many experimental studies. It is necessary and valuable to develop powerful and effective computational models to predict potential associations between miRNAs and diseases. In this work, we presented a prediction model of Graphlet Interaction for MiRNA‐Disease Association prediction (GIMDA) by integrating the disease semantic similarity, miRNA functional similarity, Gaussian interaction profile kernel similarity and the experimentally confirmed miRNA‐disease associations. The related score of a miRNA to a disease was calculated by measuring the graphlet interactions between two miRNAs or two diseases. The novelty of GIMDA lies in that we used graphlet interaction to analyse the complex relationships between two nodes in a graph. The AUCs of GIMDA in global and local leave‐one‐out cross‐validation (LOOCV) turned out to be 0.9006 and 0.8455, respectively. The average result of five‐fold cross‐validation reached to 0.8927 ± 0.0012. In case study for colon neoplasms, kidney neoplasms and prostate neoplasms based on the database of HMDD V2.0, 45, 45, 41 of the top 50 potential miRNAs predicted by GIMDA were validated by dbDEMC and miR2Disease. Additionally, in the case study of new diseases without any known associated miRNAs and the case study of predicting potential miRNA‐disease associations using HMDD V1.0, there were also high percentages of top 50 miRNAs verified by the experimental literatures.
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Affiliation(s)
- Xing Chen
- School of Information and Control Engineering, China University of Mining and Technology, Xuzhou, China
| | - Na-Na Guan
- College of Computer Science and Software Engineering, Shenzhen University, Shenzhen, China
| | - Jian-Qiang Li
- College of Computer Science and Software Engineering, Shenzhen University, Shenzhen, China
| | - Gui-Ying Yan
- Academy of Mathematics and Systems Science, Chinese Academy of Sciences, Beijing, China
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24
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Loss of miR-449a in ERG-associated prostate cancer promotes the invasive phenotype by inducing SIRT1. Oncotarget 2017; 7:22791-806. [PMID: 26988912 PMCID: PMC5008401 DOI: 10.18632/oncotarget.8061] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Accepted: 02/25/2016] [Indexed: 11/25/2022] Open
Abstract
Epigenetic regulation by SIRT1, a multifaceted NAD+-dependent protein deacetylase, is one of the most common factors modulating cellular processes in a broad range of diseases, including prostate cancer (CaP). SIRT1 is over-expressed in CaP cells, however the associated mechanism is not well understood. To identify whether specific microRNAs might mediate this linkage, we have screened a miRNA library for differential expression in ERG-associated CaP tissues. Of 20 differentially and significantly expressed miRNAs that distinguish ERG-positive tumors from ERG-negative tumors, we find miR-449a is highly suppressed in ERG-positive tumors. We establish that SIRT1 is a direct target of miR-449a and is also induced by ERG in ERG-associated CaP. Our data suggest that attenuation of miR-449a promotes the invasive phenotype of the ERG-positive CaP in part by inducing the expression of SIRT1 in prostate cancer cells. Furthermore, we also find that suppression of SIRT1 results in a significant reduction in ERG expression in ERG-positive CaP cells, indicating a feed-back regulatory loop associated with ERG, miR-449a and SIRT1. We also report that ERG suppresses p53 acetylation perhaps through miR-449a-SIRT1 axis in CaP cells. Our findings provide new insight into the function of miRNAs in regulating ERG-associated CaP. Thus, miR-449a activation or SIRT1 suppression may represent new therapeutic opportunity for ERG-associated CaP.
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25
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Chen X, Niu YW, Wang GH, Yan GY. HAMDA: Hybrid Approach for MiRNA-Disease Association prediction. J Biomed Inform 2017; 76:50-58. [DOI: 10.1016/j.jbi.2017.10.014] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Revised: 09/27/2017] [Accepted: 10/30/2017] [Indexed: 12/27/2022]
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26
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Li JQ, Rong ZH, Chen X, Yan GY, You ZH. MCMDA: Matrix completion for MiRNA-disease association prediction. Oncotarget 2017; 8:21187-21199. [PMID: 28177900 PMCID: PMC5400576 DOI: 10.18632/oncotarget.15061] [Citation(s) in RCA: 146] [Impact Index Per Article: 20.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Accepted: 01/09/2017] [Indexed: 12/31/2022] Open
Abstract
Nowadays, researchers have realized that microRNAs (miRNAs) are playing a significant role in many important biological processes and they are closely connected with various complex human diseases. However, since there are too many possible miRNA-disease associations to analyze, it remains difficult to predict the potential miRNAs related to human diseases without a systematic and effective method. In this study, we developed a Matrix Completion for MiRNA-Disease Association prediction model (MCMDA) based on the known miRNA-disease associations in HMDD database. MCMDA model utilized the matrix completion algorithm to update the adjacency matrix of known miRNA-disease associations and furthermore predict the potential associations. To evaluate the performance of MCMDA, we performed leave-one-out cross validation (LOOCV) and 5-fold cross validation to compare MCMDA with three previous classical computational models (RLSMDA, HDMP, and WBSMDA). As a result, MCMDA achieved AUCs of 0.8749 in global LOOCV, 0.7718 in local LOOCV and average AUC of 0.8767+/−0.0011 in 5-fold cross validation. Moreover, the prediction results associated with colon neoplasms, kidney neoplasms, lymphoma and prostate neoplasms were verified. As a consequence, 84%, 86%, 78% and 90% of the top 50 potential miRNAs for these four diseases were respectively confirmed by recent experimental discoveries. Therefore, MCMDA model is superior to the previous models in that it improves the prediction performance although it only depends on the known miRNA-disease associations.
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Affiliation(s)
- Jian-Qiang Li
- College of Computer Science and Software Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Zhi-Hao Rong
- School of Software, Beihang University, Beijing, 100191, China
| | - Xing Chen
- School of Information and Control Engineering, China University of Mining and Technology, Xuzhou, 221116, China
| | - Gui-Ying Yan
- Academy of Mathematics and Systems Science, Chinese Academy of Sciences, Beijing, 100190, China
| | - Zhu-Hong You
- Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Science, ürümqi, 830011, China
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27
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Xu W, Chang J, Du X, Hou J. Long non-coding RNA PCAT-1 contributes to tumorigenesis by regulating FSCN1 via miR-145-5p in prostate cancer. Biomed Pharmacother 2017; 95:1112-1118. [PMID: 28922730 DOI: 10.1016/j.biopha.2017.09.019] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2017] [Revised: 08/29/2017] [Accepted: 09/06/2017] [Indexed: 12/26/2022] Open
Abstract
Prostate cancer associated lncRNA transcript 1 (PCAT-1) has been identified as an oncogenic long non-coding RNA (lncRNA) in some solid tumors, including prostate cancer (PC). However, the molecular mechanism of PCAT-1 involved in PC is poorly defined. In this study, we found that PCAT-1 expression was up-regulated and miR-145-5p expression was down-regulated in PC tissues and cells. Function analysis indicated that PCAT-1 overexpression promoted proliferation, migration, invasion and inhibited apoptosis of PC cells. Rescue experiments demonstrated that miR-145-5p restoration attenuated the promotive effects of PCAT1 on PC progression, while Fascin-1 (FSCN1) upregulation relieved the anti-cancer role of miR-145-5p in PC. Mechanical analysis discovered that PCAT-1 could act as a miR-145-5p sponge to modulate FSCN1 expression. In conclusion, these findings suggested that PCAT-1 accelerated PC cell proliferation, migration, invasion and suppressed apoptosis by up-regulating FSCN1 mediated via miR-145-5p, hinting a potential therapeutic strategy for PC patients.
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Affiliation(s)
- Weibo Xu
- Department of Urology, Huaihe Hospital of Henan University, Kaifeng, 475000, China
| | - Junkai Chang
- Department of Urology, Huaihe Hospital of Henan University, Kaifeng, 475000, China
| | - Xinyi Du
- Department of Urology, Huaihe Hospital of Henan University, Kaifeng, 475000, China
| | - Junqing Hou
- Department of Urology, Huaihe Hospital of Henan University, Kaifeng, 475000, China.
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28
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Demethylation of the MIR145 promoter suppresses migration and invasion in breast cancer. Oncotarget 2017; 8:61731-61741. [PMID: 28977900 PMCID: PMC5617460 DOI: 10.18632/oncotarget.18686] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Accepted: 05/12/2017] [Indexed: 12/16/2022] Open
Abstract
miR-145 has been implicated in the progression of breast cancer. Here, we report that its expression is decreased in breast cancer specimens and cell lines and that this low level of expression is associated with DNA methylation of its gene, MIR145. Methylation of MIR145 has previously been correlated with cell migration and invasion, both in vivo and in vitro. We found that demethylation of MIR145 reactivates miR-145 and contributes to the anti-cancer properties of 5-aza-2'-deoxyazacytidine (5-AzaC). Therefore, miR-145 is a potentially valuable biomarker for breast cancer.
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29
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Analysis of Argonaute Complex Bound mRNAs in DU145 Prostate Carcinoma Cells Reveals New miRNA Target Genes. Prostate Cancer 2017; 2017:4893921. [PMID: 28163933 PMCID: PMC5253174 DOI: 10.1155/2017/4893921] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Accepted: 10/30/2016] [Indexed: 12/14/2022] Open
Abstract
Posttranscriptional gene regulation by microRNAs (miRNAs) contributes to the induction and maintenance of prostate carcinoma (PCa). To identify mRNAs enriched or removed from Ago2-containing RISC complexes, these complexes were immunoprecipitated from normal prostate fibroblasts (PNFs) and the PCa line DU145 and the bound mRNAs were quantified by microarray. The analysis of Ago complexes derived from PNFs or DU145 confirmed the enrichment or depletion of a variety of mRNAs already known from the literature to be deregulated. Novel potential targets were analyzed by luciferase assays with miRNAs known to be deregulated in PCa. We demonstrate that the mRNAs of the death effector domain-containing protein (DEDD), the tumor necrosis factor receptor superfamily, member 10b protein (TNFRSF10B), the tumor protein p53 inducible nuclear protein 1 (TP53INP1), and the secreted protein, acidic, cysteine-rich (SPARC; osteonectin) are regulated by miRNAs miR-148a, miR-20a, miR-24, and miR-29a/b, respectively. Therefore, these miRNAs represent potential targets for therapy. Surprisingly, overexpression of miR-24 induced focus formation and proliferation of DU145 cells, while miR-29b reduced proliferation. The study confirms genes deregulated in PCa by virtue of their presence/absence in the Ago2-complex. In conjunction with the already published miRNA profiles of PCa, the data can be used to identify miRNA-regulated mRNAs.
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30
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Ramalho-Carvalho J, Fromm B, Henrique R, Jerónimo C. Deciphering the function of non-coding RNAs in prostate cancer. Cancer Metastasis Rev 2017; 35:235-62. [PMID: 27221068 DOI: 10.1007/s10555-016-9628-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The advent of next-generation sequencing methods is fuelling the discovery of multiple non-coding RNA transcripts with direct implication in cell biology and homeostasis. This new layer of biological regulation seems to be of particular importance in human pathogenesis, including cancer. The aberrant expression of ncRNAs is a feature of prostate cancer, as they promote tumor-suppressive or oncogenic activities, controlling multicellular events leading to carcinogenesis and tumor progression. From the small RNAs involved in the RNAi pathway to the long non-coding RNAs controlling chromatin remodeling, alternative splicing, and DNA repair, the non-coding transcriptome represents the significant majority of transcriptional output. As such, ncRNAs appear as exciting new diagnostic, prognostic, and therapeutic tools. However, additional work is required to characterize the RNA species, their functions, and their applicability to clinical practice in oncology. In this review, we summarize the most important features of ncRNA biology, emphasizing its relevance in prostate carcinogenesis and its potential for clinical applications.
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Affiliation(s)
- João Ramalho-Carvalho
- Cancer Biology & Epigenetics Group - Research Center, Portuguese Oncology Institute of Porto (CI-IPOP), Porto, Portugal.,Biomedical Sciences Graduate Program, Institute of Biomedical Sciences Abel Salazar-University of Porto (ICBAS-UP), Porto, Portugal
| | - Bastian Fromm
- Department of Tumor Biology, Institute for Cancer Research, The Norwegian Radium Hospital, Oslo University Hospital, Nydalen, N-0424, Oslo, Norway
| | - Rui Henrique
- Cancer Biology & Epigenetics Group - Research Center, Portuguese Oncology Institute of Porto (CI-IPOP), Porto, Portugal.,Departments of Pathology, Portuguese Oncology Institute of Porto, Porto, Portugal.,Department of Pathology and Molecular Immunology, Institute of Biomedical Sciences Abel Salazar, University of Porto (ICBAS-UP), Porto, Portugal
| | - Carmen Jerónimo
- Cancer Biology & Epigenetics Group - Research Center, Portuguese Oncology Institute of Porto (CI-IPOP), Porto, Portugal. .,Department of Pathology and Molecular Immunology, Institute of Biomedical Sciences Abel Salazar, University of Porto (ICBAS-UP), Porto, Portugal. .,Portuguese Oncology Institute of Porto, Research Center-LAB 3, F Bdg, 1st floor, Rua Dr António Bernardino de Almeida, 4200-072, Porto, Portugal.
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31
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Li S, Wu X, Xu Y, Wu S, Li Z, Chen R, Huang N, Zhu Z, Xu X. miR-145 suppresses colorectal cancer cell migration and invasion by targeting an ETS-related gene. Oncol Rep 2016; 36:1917-26. [PMID: 27572146 DOI: 10.3892/or.2016.5042] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Accepted: 03/17/2016] [Indexed: 11/06/2022] Open
Abstract
MicroRNA-45 (miR-145) has been demonstrated to be downregulated in various cancer types including colorectal cancer (CRC). However, the function of miR‑145 in CRC has not been clearly elucidated. In this study, we examined miR-145 expression by quantitative real‑time PCR (qRT‑PCR) in CRC cell lines as well as tumors and corresponding normal mucosa, and the results were correlated to the clinicopathological parameters. In addition, using computational algorithms we investigated putative miR‑145 targets. The role of miR‑145 was further examined in studies in vitro. In our study miR‑145 was significantly decreased in CRC tissues and cell lines compared with non‑cancerous colorectal mucosa, especially lymph node or distance metastasis cases. Based on computational algorithms, we assumed that ERG was directly modulated by miR‑145 in colorectal cancer cells. For the first time, we demonstrated that ERG was highly expressed in CRC tissues compared with normal ones by qRT‑PCR. The inverse correlation between the expression of miR‑145 and ERG was observed in CRC tissues. Dual‑Luciferase assays demonstrated the direct interaction between miR‑145 and 3'‑UTR of ERG mRNA. Ectopic expression of miR‑145 suppressed the proliferation and invasion ability of colorectal cancer cells, while ERG knockdown partially restored the tumor suppressive effect of miR‑145. These results suggested that miR‑145 might act as a tumor suppressor during the process of CRC malignant transformation by interacting with ERG.
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Affiliation(s)
- Shuling Li
- Department of Gastrointestinal Surgery, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, P.R. China
| | - Xiaobing Wu
- Department of Gastrointestinal Surgery, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, P.R. China
| | - Yuandong Xu
- Department of Gastrointestinal Surgery, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, P.R. China
| | - Shangbiao Wu
- Department of Gastrointestinal Surgery, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, P.R. China
| | - Zhifa Li
- Department of Gastrointestinal Surgery, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, P.R. China
| | - Rong Chen
- Department of Gastrointestinal Surgery, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, P.R. China
| | - Nanqi Huang
- Department of Gastrointestinal Surgery, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, P.R. China
| | - Ziyuan Zhu
- Department of Gastrointestinal Surgery, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, P.R. China
| | - Xuehu Xu
- Department of Gastrointestinal Surgery, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, P.R. China
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32
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Kojima S, Goto Y, Naya Y. The roles of microRNAs in the progression of castration-resistant prostate cancer. J Hum Genet 2016; 62:25-31. [PMID: 27278789 DOI: 10.1038/jhg.2016.69] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2016] [Revised: 04/28/2016] [Accepted: 05/10/2016] [Indexed: 02/06/2023]
Abstract
Prostate cancer (PCa) is one of the leading causes of cancer-related death in men. PCa is androgen-dependent, and androgen-deprivation therapy is effective for first-line hormonal treatment, but the androgen-independent phenotype of PCa eventually develops, which is difficult to treat and has no effective cure. Recently, microRNAs have been discovered to have important roles in the initiation and progression of PCa, suggesting their use in diagnosis, predicting prognosis and development of treatment for castration-resistant PCa (CRPC). Understanding the networks of microRNAs and their target genes is necessary to ascertain their roles and importance in the development and progression of PCa. This review summarizes the current knowledge about microRNAs regulating PCa progression and elucidates the mechanism of progression to CRPC.
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Affiliation(s)
- Satoko Kojima
- Department of Urology, Teikyo University Chiba Medical Center, Ichihara, Japan
| | - Yusuke Goto
- Department of Functional Genomics, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Yukio Naya
- Department of Urology, Teikyo University Chiba Medical Center, Ichihara, Japan
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33
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Shah AV, Birdsey GM, Randi AM. Regulation of endothelial homeostasis, vascular development and angiogenesis by the transcription factor ERG. Vascul Pharmacol 2016; 86:3-13. [PMID: 27208692 PMCID: PMC5404112 DOI: 10.1016/j.vph.2016.05.003] [Citation(s) in RCA: 77] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Revised: 04/08/2016] [Accepted: 05/16/2016] [Indexed: 01/06/2023]
Abstract
Over the last few years, the ETS transcription factor ERG has emerged as a major regulator of endothelial function. Multiple studies have shown that ERG plays a crucial role in promoting angiogenesis and vascular stability during development and after birth. In the mature vasculature ERG also functions to maintain endothelial homeostasis, by transactivating genes involved in key endothelial functions, while repressing expression of pro-inflammatory genes. Its homeostatic role is lineage-specific, since ectopic expression of ERG in non-endothelial tissues such as prostate is detrimental and contributes to oncogenesis. This review summarises the main roles and pathways controlled by ERG in the vascular endothelium, its transcriptional targets and its functional partners and the emerging evidence on the pathways regulating ERG's activity and expression.
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Affiliation(s)
- Aarti V Shah
- Vascular Sciences, Imperial Centre for Translational and Experimental Medicine, National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Graeme M Birdsey
- Vascular Sciences, Imperial Centre for Translational and Experimental Medicine, National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Anna M Randi
- Vascular Sciences, Imperial Centre for Translational and Experimental Medicine, National Heart and Lung Institute, Imperial College London, London, United Kingdom.
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34
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Josson S, Chung LWK, Gururajan M. microRNAs and Prostate Cancer. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2016; 889:105-18. [PMID: 26658999 DOI: 10.1007/978-3-319-23730-5_7] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
microRNAs are noncoding RNAs that are important for embryonic stem cell development and epithelial to mesenchymal transition (EMT). Tumor cells hijack EMT and stemness to grow and metastasize to distant organs including bone. In the tumor microenvironment, tumor cells interact with the stromal fibroblasts at the primary and metastatic sites and this interaction leads to tumor growth, EMT, and bone metastasis. Tumor-stromal interactions are a dynamic process that involves both cell-cell communications and extracellular vesicles and soluble factors. Growing body of evidence suggests that microRNAs are part of the payload that comprises the extracellular vesicles. microRNAs induce reactive stroma and thus convert normal stroma into tumor-associated stroma to promote aggressive tumorigenicity in vitro and in vivo. Landmark published studies demonstrate that expression of specific microRNAs of DLK1-DIO3 stem cell cluster correlates with patient survival in metastatic prostate cancer. Thus, microRNAs mediate tumor growth, EMT, and metastasis through cell intrinsic mechanisms and extracellular communications and could be novel biomarkers and therapeutic targets in bone metastatic prostate cancer.
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Affiliation(s)
- Sajni Josson
- Uro-Oncology Research Program, Department of Medicine, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA, 90048, USA. .,Neostrata Inc., Princeton, NJ, 08540, USA.
| | - Leland W K Chung
- Uro-Oncology Research Program, Department of Medicine, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA, 90048, USA.
| | - Murali Gururajan
- Uro-Oncology Research Program, Department of Medicine, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA, 90048, USA. .,Bristol-Myers Squibb Inc., Princeton, NJ, 08543, USA.
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35
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Bakkar A, Alshalalfa M, Petersen LF, Abou-Ouf H, Al-Mami A, Hegazy SA, Feng F, Alhajj R, Bijian K, Alaoui-Jamali MA, Bismar TA. microRNA 338-3p exhibits tumor suppressor role and its down-regulation is associated with adverse clinical outcome in prostate cancer patients. Mol Biol Rep 2016; 43:229-40. [DOI: 10.1007/s11033-016-3948-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Accepted: 02/08/2016] [Indexed: 02/07/2023]
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36
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Chen X, Yan CC, Zhang X, You ZH, Deng L, Liu Y, Zhang Y, Dai Q. WBSMDA: Within and Between Score for MiRNA-Disease Association prediction. Sci Rep 2016; 6:21106. [PMID: 26880032 PMCID: PMC4754743 DOI: 10.1038/srep21106] [Citation(s) in RCA: 244] [Impact Index Per Article: 30.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2015] [Accepted: 01/18/2016] [Indexed: 12/18/2022] Open
Abstract
Increasing evidences have indicated that microRNAs (miRNAs) are functionally associated with the development and progression of various complex human diseases. However, the roles of miRNAs in multiple biological processes or various diseases and their underlying molecular mechanisms still have not been fully understood yet. Predicting potential miRNA-disease associations by integrating various heterogeneous biological datasets is of great significance to the biomedical research. Computational methods could obtain potential miRNA-disease associations in a short time, which significantly reduce the experimental time and cost. Considering the limitations in previous computational methods, we developed the model of Within and Between Score for MiRNA-Disease Association prediction (WBSMDA) to predict potential miRNAs associated with various complex diseases. WBSMDA could be applied to the diseases without any known related miRNAs. The AUC of 0.8031 based on Leave-one-out cross validation has demonstrated its reliable performance. WBSMDA was further applied to Colon Neoplasms, Prostate Neoplasms, and Lymphoma for the identification of their potential related miRNAs. As a result, 90%, 84%, and 80% of predicted miRNA-disease pairs in the top 50 prediction list for these three diseases have been confirmed by recent experimental literatures, respectively. It is anticipated that WBSMDA would be a useful resource for potential miRNA-disease association identification.
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Affiliation(s)
- Xing Chen
- National Center for Mathematics and Interdisciplinary Sciences, Chinese Academy of Sciences, Beijing, 100190, China
- Academy of Mathematics and Systems Science, Chinese Academy of Sciences, Beijing, 100190, China
| | - Chenggang Clarence Yan
- Institute of Information and Control, Hangzhou Dianzi University, Hangzhou, 310018, China
- Department of Automation, Tsinghua University, Beijing, 100084, China
| | - Xu Zhang
- School of Mechanical, Electrical & Information Engineering, Shandong University, Weihai, 264209, China
| | - Zhu-Hong You
- School of Computer Science and Technology, China University of Mining and Technology, Xuzhou, 221116, China
| | - Lixi Deng
- Institute of Computing Technology, Chinese Academy of Sciences, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Ying Liu
- School of Economics and Management, Beihang University, Beijing, 100191, China
| | - Yongdong Zhang
- Key Lab of Intelligent Information Processing of Chinese Academy of Sciences, Institute of Computing Technology, Chinese Academy of Sciences, Beijing, 100190, China
| | - Qionghai Dai
- Department of Automation, Tsinghua University, Beijing, 100084, China
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37
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Ceder Y. Non-coding RNAs in Prostate Cancer: From Discovery to Clinical Applications. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2016; 886:155-170. [PMID: 26659491 DOI: 10.1007/978-94-017-7417-8_8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Prostate cancer is a heterogeneous disease for which the molecular mechanisms are still not fully elucidated. Prostate cancer research has traditionally focused on genomic and epigenetic alterations affecting the proteome, but over the last decade non-coding RNAs, especially microRNAs, have been recognized to play a key role in prostate cancer progression. A considerable number of individual microRNAs have been found to be deregulated in prostate cancer and their biological significance elucidated in functional studies. This review will delineate the current advances regarding the involvement of microRNAs and their targets in prostate cancer biology as well as their potential usage in the clinical management of the disease. The main focus will be on microRNAs contributing to initiation and progression of prostate cancer, including androgen signalling, cellular plasticity, stem cells biology and metastatic processes. To conclude, implications on potential future microRNA-based therapeutics based on the recent advances regarding the interplay between microRNAs and their targets are discussed.
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Affiliation(s)
- Yvonne Ceder
- Translational Cancer Research, Lund University, Medicon Village, Building 404:A3, 223 81, Lund, Sweden.
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Das AV, Pillai RM. Implications of miR cluster 143/145 as universal anti-oncomiRs and their dysregulation during tumorigenesis. Cancer Cell Int 2015; 15:92. [PMID: 26425114 PMCID: PMC4588501 DOI: 10.1186/s12935-015-0247-4] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Accepted: 09/22/2015] [Indexed: 02/07/2023] Open
Abstract
Tumorigenesis is a multistep process, de-regulated due to the imbalance of oncogenes as well as anti-oncogenes, resulting in disruption of tissue homeostasis. In many cases the effect of oncogenes and anti-oncogenes are mediated by various other molecules such as microRNAs. microRNAs are small non-coding RNAs established to post-transcriptionally regulate more than half of the protein coding genes. miR cluster 143/145 is one such cancer-related microRNA cluster which is down-regulated in most of the cancers and is able to hinder tumorigenesis by targeting tumor-associated genes. The fact that they could sensitize drug-resistant cancer cells by targeting multidrug resistant genes makes them potent tools to target cancer cells. Their low levels precede events which lead to cancer progression and therefore could be considered also as biomarkers to stage the disease. Interestingly, evidence suggests the existence of several in vivo mechanisms by which this cluster is differentially regulated at the molecular level to keep their levels low in cancer. In this review, we summarize the roles of miR cluster 143/145 in cancer, their potential prognostic applications and also their regulation during tumorigenesis.
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Affiliation(s)
- Ani V Das
- Cancer Research Program-9, Rajiv Gandhi Centre for Biotechnology, Thycaud.P.O., Thiruvananthapuram-14, Kerala India
| | - Radhakrishna M Pillai
- Cancer Research Program-9, Rajiv Gandhi Centre for Biotechnology, Thycaud.P.O., Thiruvananthapuram-14, Kerala India
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Khanmi K, Ignacimuthu S, Paulraj MG. MicroRNA in prostate cancer. Clin Chim Acta 2015; 451:154-60. [PMID: 26415820 DOI: 10.1016/j.cca.2015.09.022] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Revised: 09/21/2015] [Accepted: 09/23/2015] [Indexed: 12/17/2022]
Abstract
In the United States of America male prostate cancer (PCa) is the most dominant malignancy and the second highest cause of cancer-related mortality risk compared to lung and colon cancers. MicroRNAs (miRNAs) are a class of endogenously expressed small, non-coding, single-stranded RNA which function as regulators of gene expression. They influence various physiological and pathophysiological processes. In this review, we focus on the regulation of miRNAs in prostate cancer and their mechanisms which contribute to prostate carcinogenesis. The relation of miRNAs with androgen signaling is highlighted and the prospects of miRNAs for clinical therapies are discussed.
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Affiliation(s)
- Kasomva Khanmi
- Molecular Biology Unit, Entomology Research Institute, Loyola College, Nungambakkam, Chennai 600 034, India
| | - Savarimuthu Ignacimuthu
- Molecular Biology Unit, Entomology Research Institute, Loyola College, Nungambakkam, Chennai 600 034, India; Visiting Professor Programme, Deanship of Scientific Research, College of Science, King Saud University, Saudi Arabia.
| | - Michael Gabriel Paulraj
- Molecular Biology Unit, Entomology Research Institute, Loyola College, Nungambakkam, Chennai 600 034, India
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Zhang X, Wu J. Prognostic role of microRNA-145 in prostate cancer: A systems review and meta-analysis. Prostate Int 2015; 3:71-4. [PMID: 26473147 PMCID: PMC4588372 DOI: 10.1016/j.prnil.2014.09.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2014] [Accepted: 09/15/2014] [Indexed: 11/25/2022] Open
Abstract
Background Many studies have shown that microRNAs (miRNAs) exhibit altered expression in various cancers and may play an important role as prognostic biomarkers. The present meta-analysis was undertaken to summarize recent studies of the use of microRNA-145 (miR-145) in the assessment of prostate cancer and to analyze the prognostic role of miR-145 for disease-free survival (DFS) outcome. Methods The present meta-analysis was performed by searching PubMed with the use of multiple search strategies. Data were extracted from studies examining DFS in patients with prostate cancer who showed lower expression of miR-145. Pooled hazard ratios of miR-145 and 95% confidence intervals were calculated. Four studies with a total of 211 patients were included in this meta-analysis. Results For overall DFS, the pooled hazard ratio of lower miR-145 expression in prostate cancer was 0.74 (95% confidence interval: 0.23–2.34, P = 0.001). Thus, lower miR-145 expression was found to significantly predict poorer outcomes. Conclusions The present findings suggest that downregulation of the expression of miR-145 might predict poor prognosis in patients with prostate cancer.
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Affiliation(s)
- Xin Zhang
- Shanxi Medical University, Taiyuan, China
| | - Jinfeng Wu
- Department of Urology, Shanxi Dayi Hospital of Shanxi Medical University, Taiyuan, China
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Ayala G, Frolov A, Chatterjee D, He D, Hilsenbeck S, Ittmann M. Expression of ERG protein in prostate cancer: variability and biological correlates. Endocr Relat Cancer 2015; 22:277-87. [PMID: 25972242 PMCID: PMC4432248 DOI: 10.1530/erc-14-0586] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Prostate cancer is the second leading cause of cancer-related death of men in the USA. The TMPRSS2/ERG (T/E) fusion gene is present in approximately 50% of prostate cancers and promotes tumor progression in vivo. The presence of the T/E fusion gene is strongly associated with the expression of ERG protein, but emerging evidence indicates a significant interfocal and intrafocal variability in the levels of ERG protein expression. We therefore analyzed ERG protein expression by image analysis to objectively quantitate the extent of such heterogeneity, and confirmed significant interfocal and intrafocal variability of ERG protein expression levels in cancer expressing ERG. To define the pathways associated with ERG and its variable expression in prostate cancer, we have analyzed the correlations of ERG expression, as evaluated by immunohistochemistry, with 46 key proteins associated with signal transduction, transcriptional control, and other processes using a large tissue microarray with more than 500 prostate cancers. We found a significant correlation of ERG expression with the markers of activation of the PI3K, MYC, and NFκB pathways, which had previously been linked directly or indirectly to ERG expression. We have also identified significant correlations with novel proteins that have not been previously linked to ERG expression, including serum response factor, the p160 coactivator SRC1, and Sprouty1. Notably, SKP2 only correlated with a high level of ERG protein expression. Thus ERG expression is variable in prostate cancer and is associated with activation of multiple pathways and proteins including several potentially targetable pathways.
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Affiliation(s)
- Gustavo Ayala
- Department of Pathology and Laboratory MedicineUniversity of Texas Health Sciences Center Medical School, Houston, Texas, USADan L. Duncan Cancer CenterHouston, Texas, USADepartment of Pathology and ImmunologyBaylor College of Medicine, One Baylor Plaza, Houston, Texas 77030, USADepartment of Veterans AffairsMichael E. DeBakey VA Medical Center, Houston, Texas 77030, USA
| | - Anna Frolov
- Department of Pathology and Laboratory MedicineUniversity of Texas Health Sciences Center Medical School, Houston, Texas, USADan L. Duncan Cancer CenterHouston, Texas, USADepartment of Pathology and ImmunologyBaylor College of Medicine, One Baylor Plaza, Houston, Texas 77030, USADepartment of Veterans AffairsMichael E. DeBakey VA Medical Center, Houston, Texas 77030, USA Department of Pathology and Laboratory MedicineUniversity of Texas Health Sciences Center Medical School, Houston, Texas, USADan L. Duncan Cancer CenterHouston, Texas, USADepartment of Pathology and ImmunologyBaylor College of Medicine, One Baylor Plaza, Houston, Texas 77030, USADepartment of Veterans AffairsMichael E. DeBakey VA Medical Center, Houston, Texas 77030, USA
| | - Deyali Chatterjee
- Department of Pathology and Laboratory MedicineUniversity of Texas Health Sciences Center Medical School, Houston, Texas, USADan L. Duncan Cancer CenterHouston, Texas, USADepartment of Pathology and ImmunologyBaylor College of Medicine, One Baylor Plaza, Houston, Texas 77030, USADepartment of Veterans AffairsMichael E. DeBakey VA Medical Center, Houston, Texas 77030, USA
| | - Dandan He
- Department of Pathology and Laboratory MedicineUniversity of Texas Health Sciences Center Medical School, Houston, Texas, USADan L. Duncan Cancer CenterHouston, Texas, USADepartment of Pathology and ImmunologyBaylor College of Medicine, One Baylor Plaza, Houston, Texas 77030, USADepartment of Veterans AffairsMichael E. DeBakey VA Medical Center, Houston, Texas 77030, USA
| | - Susan Hilsenbeck
- Department of Pathology and Laboratory MedicineUniversity of Texas Health Sciences Center Medical School, Houston, Texas, USADan L. Duncan Cancer CenterHouston, Texas, USADepartment of Pathology and ImmunologyBaylor College of Medicine, One Baylor Plaza, Houston, Texas 77030, USADepartment of Veterans AffairsMichael E. DeBakey VA Medical Center, Houston, Texas 77030, USA
| | - Michael Ittmann
- Department of Pathology and Laboratory MedicineUniversity of Texas Health Sciences Center Medical School, Houston, Texas, USADan L. Duncan Cancer CenterHouston, Texas, USADepartment of Pathology and ImmunologyBaylor College of Medicine, One Baylor Plaza, Houston, Texas 77030, USADepartment of Veterans AffairsMichael E. DeBakey VA Medical Center, Houston, Texas 77030, USA Department of Pathology and Laboratory MedicineUniversity of Texas Health Sciences Center Medical School, Houston, Texas, USADan L. Duncan Cancer CenterHouston, Texas, USADepartment of Pathology and ImmunologyBaylor College of Medicine, One Baylor Plaza, Houston, Texas 77030, USADepartment of Veterans AffairsMichael E. DeBakey VA Medical Center, Houston, Texas 77030, USA
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Xue G, Ren Z, Chen Y, Zhu J, Du Y, Pan D, Li X, Hu B. A feedback regulation between miR-145 and DNA methyltransferase 3b in prostate cancer cell and their responses to irradiation. Cancer Lett 2015; 361:121-7. [PMID: 25749421 DOI: 10.1016/j.canlet.2015.02.046] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2014] [Revised: 02/24/2015] [Accepted: 02/26/2015] [Indexed: 02/02/2023]
Abstract
It is believed that epigenetic modification plays roles in cancer initiation and progression. Both microRNA and DNA methyltransferase are epigenetic regulation factors. It was found that miR-145 upregulates while DNMT3b downregulates in PC3 cells. Presence of any negative correlationship and their response to irradiation were investigated in the current study. We found that miR-145 downregulated DNMT3b expression by directly targeting the 3'-UTR of DNMT3b mRNA and knockdown of DNMT3b increased expression of miR-145 via CpG island promoter hypomethylation, suggesting that there is a crucial crosstalk between miR-145 and DNMT3b via a double-negative feedback loop. Responses of the miR-145 and DNMT3b to irradiation are a negative correlation. We also found that either overexpression of miR-145 or knockdown of DNMT3b sensitized prostate cancer cells to X-ray radiation. Our findings enrich the complex relationships between miRNA and DNMTs in carcinogenesis and irradiation stress. It also sheds light on the potential combination of ionizing radiation and epigenetic regulation in prostate cancer therapy.
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Affiliation(s)
- Gang Xue
- Department of Space Radiobiology, Key Laboratory of Heavy Ion Radiation Biology and Medicine, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhenxin Ren
- Department of Space Radiobiology, Key Laboratory of Heavy Ion Radiation Biology and Medicine, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Yaxiong Chen
- Department of Space Radiobiology, Key Laboratory of Heavy Ion Radiation Biology and Medicine, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Jiayun Zhu
- Department of Space Radiobiology, Key Laboratory of Heavy Ion Radiation Biology and Medicine, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Yarong Du
- Department of Space Radiobiology, Key Laboratory of Heavy Ion Radiation Biology and Medicine, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Dong Pan
- Department of Space Radiobiology, Key Laboratory of Heavy Ion Radiation Biology and Medicine, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiaoman Li
- Department of Space Radiobiology, Key Laboratory of Heavy Ion Radiation Biology and Medicine, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Burong Hu
- Department of Space Radiobiology, Key Laboratory of Heavy Ion Radiation Biology and Medicine, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China.
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43
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The oncogene ERG: a key factor in prostate cancer. Oncogene 2015; 35:403-14. [PMID: 25915839 DOI: 10.1038/onc.2015.109] [Citation(s) in RCA: 154] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Revised: 03/05/2015] [Accepted: 03/06/2015] [Indexed: 12/20/2022]
Abstract
ETS-related gene (ERG) is a member of the E-26 transformation-specific (ETS) family of transcription factors with roles in development that include vasculogenesis, angiogenesis, haematopoiesis and bone development. ERG's oncogenic potential is well known because of its involvement in Ewing's sarcoma and leukaemia. However, in the past decade ERG has become highly associated with prostate cancer development, particularly as a result of a gene fusion with the promoter region of the androgen-induced TMPRRSS2 gene. We review ERG's structure and function, and its role in prostate cancer. We discuss potential new therapies that are based on targeting ERG.
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44
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Li YQ, He QM, Ren XY, Tang XR, Xu YF, Wen X, Yang XJ, Ma J, Liu N. MiR-145 inhibits metastasis by targeting fascin actin-bundling protein 1 in nasopharyngeal carcinoma. PLoS One 2015; 10:e0122228. [PMID: 25816323 PMCID: PMC4376852 DOI: 10.1371/journal.pone.0122228] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2014] [Accepted: 02/09/2015] [Indexed: 12/11/2022] Open
Abstract
Background Based on our recent microarray analysis, we found that miR-145 was obviously downregulated in nasopharyngeal carcinoma (NPC) tissues. However, little is known about its function and mechanism involving in NPC development and progression. Methods Quantitative RT-PCR was used to detect miR-145 expression in NPC cell lines and clinical samples. Wound healing, Transwell migration and invasion, three-dimension spheroid invasion assays, and lung metastasis model were performed to test the migratory, invasive, and metastatic ability of NPC cells. Luciferase reporter assay, quantitative RT-PCR, and Western blotting were used to verify the target of miR-145. Results MiR-145 was obviously decreased in NPC cell lines and clinical samples (P<0.01). Ectopic overexpression of miR-145 significantly inhibited the migratory and invasive ability of SUNE-1 and CNE-2 cells. In addition, stably overexpressing of miR-145 in SUNE-1 cells could remarkably restrain the formation of metastatic nodes in the lungs of mice. Furthermore, fascin actin-bundling protein 1 (FSCN1) was verified as a target of miR-145, and silencing FSCN1 with small RNA interfering RNA could suppress NPC cell migration and invasion. Conclusions Our findings demonstrated that miR-145 function as a tumor suppressor in NPC development and progression via targeting FSCN1, which could sever as a potential novel therapeutic target for patients with NPC.
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Affiliation(s)
- Ying-Qin Li
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou, People's Republic of China
| | - Qing-Mei He
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou, People's Republic of China
| | - Xian-Yue Ren
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou, People's Republic of China
| | - Xin-Ran Tang
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou, People's Republic of China
| | - Ya-Fei Xu
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou, People's Republic of China
| | - Xin Wen
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou, People's Republic of China
| | - Xiao-Jing Yang
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou, People's Republic of China
| | - Jun Ma
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou, People's Republic of China
| | - Na Liu
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou, People's Republic of China
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45
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miR-145 inhibits invasion and metastasis by directly targeting Smad3 in nasopharyngeal cancer. Tumour Biol 2015; 36:4123-31. [PMID: 25578496 DOI: 10.1007/s13277-015-3046-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2014] [Accepted: 01/02/2015] [Indexed: 12/31/2022] Open
Abstract
MicroRNA-145 (miR-145) has been implicated in several cancers. However, its role in nasopharyngeal carcinoma (NPC) remains unclear. In this study, we proved that miR-145 was significantly downregulated in NPC and associated with NPC cell metastasis. Moreover, miR-145 suppressed Smad3 by directly binding to the 3'-untranslated region (UTR) of Smad3. Knockdown of Smad3 in NPC cells inhibited cell migration and invasion, which was consistent with the effect of miR-145 in NPC cells. In addition, Smad3 expression was inversely correlated with miR-145 level in clinical NPC samples. Taken together, our findings indicate that miR-145 is a tumour suppressor that affects invasive and metastatic properties of NPC via the miR-145/Smad3 axis, leading us to propose that miR-145 overexpression might be a potential therapeutic strategy of NPC intervention.
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46
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Cui SY, Wang R, Chen LB. MicroRNA-145: a potent tumour suppressor that regulates multiple cellular pathways. J Cell Mol Med 2014; 18:1913-26. [PMID: 25124875 PMCID: PMC4244007 DOI: 10.1111/jcmm.12358] [Citation(s) in RCA: 106] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2014] [Accepted: 05/30/2014] [Indexed: 12/26/2022] Open
Abstract
MicroRNAs are endogenous, small (18-25 nucleotides) non-coding RNAs, which regulate genes expression by directly binding to the 3'-untranslated regions of the target messenger RNAs. Emerging evidence shows that alteration of microRNAs is involved in cancer development. MicroRNA-145 is commonly down-regulated in many types of cancer, regulating various cellular processes, such as the cell cycle, proliferation, apoptosis and invasion, by targeting multiple oncogenes. This review aims to summarize the recent published literature on the role of microRNA-145 in regulating tumourigenesis and progression, and explore its potential for cancer diagnosis, prognosis and treatment.
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Affiliation(s)
- Shi-Yun Cui
- Department of Medical Oncology, Jinling Hospital, School of Medicine, Nanjing UniversityNanjing, Jiangsu, China
| | - Rui Wang
- Department of Medical Oncology, Jinling Hospital, School of Medicine, Nanjing UniversityNanjing, Jiangsu, China
| | - Long-Bang Chen
- Department of Medical Oncology, Jinling Hospital, School of Medicine, Nanjing UniversityNanjing, Jiangsu, China
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47
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He JH, Zhang JZ, Han ZP, Wang L, Lv YB, Li YG. Reciprocal regulation of PCGEM1 and miR-145 promote proliferation of LNCaP prostate cancer cells. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2014; 33:72. [PMID: 25200485 PMCID: PMC4173053 DOI: 10.1186/s13046-014-0072-y] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/23/2014] [Accepted: 08/25/2014] [Indexed: 02/06/2023]
Abstract
Prostate cancer gene expression marker 1 (PCGEM1) is a long non-coding RNA (lncRNA) overexpressed in prostate cancer (PCa) cells that promotes PCa initiation and progression, and protects against chemotherapy-induced apoptosis. The microRNA miR-145 functions as a tumor suppressor in PCa. We speculate that reciprocal regulation of PCGEM1 and miR-145 promote proliferation of LNCaP prostate cancer cells. To test this hypothesis, the interaction between PCGEM1 and miR-145 was examined using a luciferase reporter assay. Expression levels were selectively altered in LNCaP cells and noncancerous RWPE-1 prostate cells by transfection of miR-145 or small interfering RNA sequences against (siRNA) PCGEM1. Relative expression levels were detected by RT-PCR, tumor cell growth and early apoptosis by the MTT assay and flow cytometry, respectively, and tumor cell migration and invasion properties by transwell assays. The effect of siRNA PCGEM1 and miR-145 transfection on prostate cancer growth in vivo was examined in the (nu/nu) mouse model. PCGEM1 and miR-145 exhibited reciprocal regulation; downregulation of PCGEM1 expression in LNCaP cells increased expression of miR-145, while overexpression of miR-145 decreased PCGEM1 expression. Transfection of the miR-145 expression vector and siRNA PCGEM1 inhibited tumor cell proliferation, migration, and invasion, and induced early apoptosis both in vitro. In contrast, there was no effect on RWPE-1 cells. We demonstrate a reciprocal negative control relationship between PCGEM1 and miR-145 that regulates both LNCaP cell proliferation and nu/nu PCa tumor growth. The results also identify PCGEM1 and associated regulators as possible targets for PCa therapy.
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Blandino G, Fazi F, Donzelli S, Kedmi M, Sas-Chen A, Muti P, Strano S, Yarden Y. Tumor suppressor microRNAs: a novel non-coding alliance against cancer. FEBS Lett 2014; 588:2639-52. [PMID: 24681102 DOI: 10.1016/j.febslet.2014.03.033] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2014] [Revised: 03/14/2014] [Accepted: 03/17/2014] [Indexed: 02/06/2023]
Abstract
Tumor initiation and progression are the outcomes of a stepwise accumulation of genetic alterations. Among these, gene amplification and aberrant expression of oncogenic proteins, as well as deletion or inactivation of tumor suppressor genes, represent hallmark steps. Mounting evidence collected over the last few years has identified different populations of non-coding RNAs as major players in tumor suppression in almost all cancer types. Elucidating the diverse molecular mechanisms underlying the roles of non-coding RNAs in tumor progression might provide illuminating insights, potentially able to assist improved diagnosis, better staging and effective treatments of human cancers. Here we focus on several groups of tumor suppressor microRNAs, whose downregulation exerts a profound oncologic impact and might be harnessed for the benefit of cancer patients.
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Affiliation(s)
- Giovanni Blandino
- Translational Oncogenomics Unit, Italian National Cancer Institute 'Regina Elena', Rome, Italy.
| | - Francesco Fazi
- Department of Anatomical, Histological, Forensic & Orthopaedic Sciences, Section of Histology & Medical Embryology, Sapienza University of Rome, Rome, Italy
| | - Sara Donzelli
- Translational Oncogenomics Unit, Italian National Cancer Institute 'Regina Elena', Rome, Italy
| | - Merav Kedmi
- Weizmann Institute of Science, Department of Biological Regulation, Rehovot, Israel
| | - Aldema Sas-Chen
- Weizmann Institute of Science, Department of Biological Regulation, Rehovot, Israel
| | - Paola Muti
- Department of Oncology, Juravinski Cancer Center-McMaster University Hamilton, Ontario, Canada
| | - Sabrina Strano
- Molecular Chemoprevention Unit, Italian National Cancer Institute 'Regina Elena', Rome, Italy
| | - Yosef Yarden
- Weizmann Institute of Science, Department of Biological Regulation, Rehovot, Israel
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Xia H, Yamada S, Aoyama M, Sato F, Masaki A, Ge Y, Ri M, Ishida T, Ueda R, Utsunomiya A, Asai K, Inagaki H. Prognostic impact of microRNA-145 down-regulation in adult T-cell leukemia/lymphoma. Hum Pathol 2014; 45:1192-8. [PMID: 24745613 DOI: 10.1016/j.humpath.2014.01.017] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2013] [Revised: 01/16/2014] [Accepted: 01/24/2014] [Indexed: 01/07/2023]
Abstract
Adult T-cell leukemia/lymphoma (ATL) is a highly aggressive tumor caused by human T-cell leukemia virus type 1. MicroRNAs (miRNAs) are closely involved in the development and progression of various tumors. Here we investigated the dysregulation of miRNAs in ATL and its clinical significance. Studies using miRNA arrays and subsequent real-time reverse transcription polymerase chain reaction showed that, in the 9 ATL cell lines examined, 1 miRNA was consistently up-regulated, whereas another 3 were consistently down-regulated, compared with normal CD4-positive lymphocytes. Next, we analyzed the prognostic impact of these 4 miRNAs in patients with aggressive-type ATL (n = 40). Of the 4 dysregulated miRNAs selected, 3 (miR-130b higher expression, miR-145 lower expression, and miR-223 lower expression) were significantly associated with a worsened overall patient survival. We found that expressions of these 3 miRNAs were correlated with each other. To clarify which of the 3 had the most significant impact on overall survival, we performed a multivariate prognostic analysis that included these 3 miRNAs, and only miR-145 lower expression was selected as an independent risk factor (P = .0005). When overexpressed in an ATL cell line in vitro, miR-145 specifically inhibited tumor cell growth. In conclusion, our study suggests that miR-145 down-regulation provides a growth advantage in ATL and is highly associated with a worsened prognosis for patients with ALT. Hence, miR-145 may be a useful prognostic marker and a potential therapeutic target for ATL.
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Affiliation(s)
- Hongjing Xia
- Department of Anatomic Pathology and Molecular Diagnostics, Nagoya City University Graduate School of Medical Sciences, Nagoya 467-8601, Japan
| | - Seiji Yamada
- Department of Anatomic Pathology and Molecular Diagnostics, Nagoya City University Graduate School of Medical Sciences, Nagoya 467-8601, Japan
| | - Mineyoshi Aoyama
- Department of Molecular Neurobiology, Nagoya City University Graduate School of Medical Sciences, Nagoya 467-8601, Japan
| | - Fumihiko Sato
- Department of Anatomic Pathology and Molecular Diagnostics, Nagoya City University Graduate School of Medical Sciences, Nagoya 467-8601, Japan
| | - Ayako Masaki
- Department of Anatomic Pathology and Molecular Diagnostics, Nagoya City University Graduate School of Medical Sciences, Nagoya 467-8601, Japan
| | - Yan Ge
- Department of Anatomic Pathology and Molecular Diagnostics, Nagoya City University Graduate School of Medical Sciences, Nagoya 467-8601, Japan
| | - Masaki Ri
- Department of Medical Oncology and Immunology, Nagoya City University Graduate School of Medical Sciences, Nagoya 467-8601, Japan
| | - Takashi Ishida
- Department of Medical Oncology and Immunology, Nagoya City University Graduate School of Medical Sciences, Nagoya 467-8601, Japan
| | - Ryuzo Ueda
- Department of Medical Oncology and Immunology, Nagoya City University Graduate School of Medical Sciences, Nagoya 467-8601, Japan; Department of Tumor Immunology, Aichi Medical University School of Medicine, Nagakute 480-1195, Japan
| | - Atae Utsunomiya
- Department of Hematology, Imamura Bun-in Hospital, Kagoshima 890-0064, Japan
| | - Kiyofumi Asai
- Department of Molecular Neurobiology, Nagoya City University Graduate School of Medical Sciences, Nagoya 467-8601, Japan
| | - Hiroshi Inagaki
- Department of Anatomic Pathology and Molecular Diagnostics, Nagoya City University Graduate School of Medical Sciences, Nagoya 467-8601, Japan.
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Huo W, Jin N, Fan L, Wang W. MiRNA regulation of TRAIL expression exerts selective cytotoxicity to prostate carcinoma cells. Mol Cell Biochem 2013; 388:123-33. [PMID: 24292881 DOI: 10.1007/s11010-013-1904-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2013] [Accepted: 11/15/2013] [Indexed: 12/17/2022]
Abstract
Prostate carcinoma is the most common cancer for men and among the leading cancer-related causes. Many evidences have shown that tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) potently induces apoptosis in cancer cells, and thus, is a promising biologic agent for prostate carcinoma therapy. However, TRAIL expression mediated by the current vectors lacks tumor specificity, thereby exerting cytotoxicity to normal cells. To solve this problem, we inserted miRNA response elements (MREs), miR-143 and miR-145, expression levels of which were reduced in prostate carcinoma, as well as that of miR-122, which is specifically expressed in hepatic cells, into adenoviral vectors to control TRAIL expression (Ad-TRAIL-M3). qPCR data confirmed that miR-143, miR-145, and miR-122 levels were all decreased in prostate carcinoma cell lines and prostate cancer samples from patients. Luciferase assays showed that MREs-regulated luciferase expression was potently suppressed in normal cells, but not in prostate cancer cells. Ad-TRAIL-M3, which expresses TRAIL in a MREs-regulated manner, produced high level of TRAIL and suppressed the survival of prostate cancer cells by inducing apoptosis, while Ad-TRAIL-M3 had no TRAIL expression in normal cells and thus exerted no cytotoxicity to them. The studies on PC-3 tumor xenograft in mice further confirmed that Ad-TRAIL-M3 was able to inhibit the growth of tumors and possessed high biosafety. In conclusion, we successfully generated an adenoviral vector that expresses TRAIL in miRNA-regulated mechanism. This miRNA-based gene therapy may be promising for prostate carcinoma treatment.
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Affiliation(s)
- Wei Huo
- Department of Urology, China Japan Union Hospital of Jilin University, Changchun, 130033, China
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