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miR-204

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https://www.readbyqxmd.com/read/28445987/context-dependent-mir-204-and-mir-211-affect-the-biological-properties-of-amelanotic-and-melanotic-melanoma-cells
#1
Marianna Vitiello, Andrea Tuccoli, Romina D'Aurizio, Samanta Sarti, Laura Giannecchini, Simone Lubrano, Andrea Marranci, Monica Evangelista, Silvia Peppicelli, Chiara Ippolito, Ivana Barravecchia, Elena Guzzolino, Valentina Montagnani, Michael Gowen, Elisa Mercoledi, Alberto Mercatanti, Laura Comelli, Salvatore Gurrieri, Lawrence W Wu, Omotayo Ope, Keith Flaherty, Genevieve M Boland, Marc R Hammond, Lawrence Kwong, Mario Chiariello, Barbara Stecca, Gao Zhang, Alessandra Salvetti, Debora Angeloni, Letizia Pitto, Lido Calorini, Giovanna Chiorino, Marco Pellegrini, Meenhard Herlyn, Iman Osman, Laura Poliseno
Despite increasing amounts of experimental evidence depicting the involvement of non-coding RNAs in cancer, the study of BRAFV600E-regulated genes has thus far focused mainly on protein-coding ones. Here, we identify and study the microRNAs that BRAFV600E regulates through the ERK pathway.By performing small RNA sequencing on A375 melanoma cells and a vemurafenib-resistant clone that was taken as negative control, we discover miR-204 and miR-211 as the miRNAs most induced by vemurafenib. We also demonstrate that, although belonging to the same family, these two miRNAs have distinctive features...
April 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28438736/altered-microrna-expression-is-responsible-for-the-pro-osteogenic-phenotype-of-interstitial-cells-in-calcified-human-aortic-valves
#2
Rui Song, David A Fullerton, Lihua Ao, Ke-Seng Zhao, T Brett Reece, Joseph C Cleveland, Xianzhong Meng
BACKGROUND: The transition of aortic valve interstitial cells (AVICs) to myofibroblastic and osteoblast-like phenotypes plays a critical role in calcific aortic valve disease progression. Several microRNAs (miRs) are implicated in stem cell differentiation into osteoblast. We hypothesized that an epigenetic mechanism regulates valvular pro-osteogenic activity. This study examined miR profile in AVICs of calcified valves and identified miRs responsible for AVIC phenotypic transition. METHODS AND RESULTS: AVICs were isolated from normal and diseased valves...
April 24, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28435518/sparc-overexpression-alters-microrna-expression-profiles-involved-in-tumor-progression
#3
Bhavesh K Ahir, Nasya M Elias, Sajani S Lakka
Medulloblastoma is the most common malignant brain tumor in children. SPARC (secreted protein acidic and rich in cysteine), a multicellular non-structural glycoprotein is known to be involved in multiple processes in various cancers. Previously, we reported that SPARC expression significantly impairs medulloblastoma tumor growth in vitro and in vivo and also alters chemo sensitivity. MicroRNAs are a class of post-transcriptional gene regulators with critical functions in tumor progression. In addition, microRNA (miRNA) expression changes are also involved in chemo-resistance...
January 2017: Genes & Cancer
https://www.readbyqxmd.com/read/28431866/circulating-micrornas-signature-correlates-with-positive-18-f-fluorodeoxyglucose-positron-emission-tomography-in-patients-with-abdominal-aortic-aneurysm
#4
Audrey Courtois, Betty Nusgens, Nancy Garbacki, Roland Hustinx, Pierre Gomez, Jean-Olivier Defraigne, Alain C Colige, Natzi Sakalihasan
BACKGROUND: Prediction of abdominal aortic aneurysm (AAA) rupture is a challenging issue. Small noncoding microRNAs (miRNAs) are potent regulators of gene expression and are considered as valuable circulating biomarkers. Recently, [(18)F]fluorodeoxyglucose (FDG) uptake detected by positron emission tomography (PET) in AAA was correlated with cellular and molecular alterations involved in wall instability and its potential rupture. Our study aimed at identifying circulating miRNAs correlated with a positive PET that could help discriminate patients at high risk of rupture...
April 18, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28394317/corrigendum-sirtuin1-protects-endothelial-caveolin-1-expression-and-preserves-endothelial-function-via-suppressing-mir-204-and-endoplasmic-reticulum-stress
#5
Modar Kassan, Ajit Vikram, Young-Rae Kim, Qiuxia Li, Adam Kassan, Hemal H Patel, Santosh Kumar, Mohanad Gabani, Jing Liu, Julia S Jacobs, Kaikobad Irani
No abstract text is available yet for this article.
April 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28393181/microrna-based-molecular-classification-of-papillary-thyroid-carcinoma
#6
Francesca Rosignolo, Lorenzo Memeo, Fabio Monzani, Cristina Colarossi, Valeria Pecce, Antonella Verrienti, Cosimo Durante, Giorgio Grani, Livia Lamartina, Stefano Forte, Daniela Martinetti, Dario Giuffrida, Diego Russo, Fulvio Basolo, Sebastiano Filetti, Marialuisa Sponziello
MicroRNA (miRNA) expression is dysregulated in many human malignancies, and a growing number of studies are focused on their potential use as tumor biomarkers. To identify a miRNA signature for papillary thyroid carcinomas (PTC), we investigated miRNA expression profiles in two independent cohorts of PTCs, which included major histological subtypes [classical-type (PTC‑CT), follicular-variant (PTC‑FV), and tall-cell variant (PTC‑TCV)] and cases with low or intermediate risk of recurrence. Using TaqMan® Array Human MicroRNA A+B Cards v3...
May 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28393025/expression-of-lens-related-micrornas-in-transparent-infant-lenses-and-congenital-cataract
#7
Chang-Rui Wu, Min Ye, Li Qin, Yue Yin, Cheng Pei
AIM: To identify the expression of lens-related microRNAs (miRNAs) in the central epithelium of transparent infant lenses and congenital cataract. METHODS: Lens-related miRNAs were retrieved from PubMed database. The expression levels of these miRNAs in transparent infant lenses and congenital cataract were determined by stem-loop reverse transcription-polymerase chain reaction (RT-PCR). miRanda algorithm was used to predict the target genes of these differentially expressed miRNAs...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/28388577/il-6r-stat3-mir-204-feedback-loop-contributes-to-cisplatin-resistance-of-epithelial-ovarian-cancer-cells
#8
Xiaolan Zhu, Huiling Shen, Xinming Yin, Lulu Long, Xiaofang Chen, Fan Feng, Yueqin Liu, Peiqing Zhao, Yue Xu, Mei Li, Wenlin Xu, Yuefeng Li
Enhanced chemoresistance is, among other factors, believed to be responsible for treatment failure and tumor relapse in patients with epithelial ovarian cancer (EOC). Here, we exposed EOC cells to interleukin-6 (IL-6) to activate oncogenic STAT3, which directly repressed miR-204 via a conserved STAT3-binding site near the TRPM3 promoter region upstream of miR-204. Repression of miR-204 was required for IL-6-induced cisplatin (cDDP) resistance. Furthermore, we identified the IL-6 receptor (IL-6R), which mediates IL-6-dependent STAT3 activation, as a direct miR-204 target...
March 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/28377507/an-epigenetic-regulatory-loop-controls-pro-osteogenic-activation-by-tgf-%C3%AE-1-or-bone-morphogenetic-protein-2-in-human-aortic-valve-interstitial-cells
#9
Rui Song, David A Fullerton, Lihua Ao, Ke-Seng Zhao, Xianzhong Meng
Calcific aortic valve disease (CAVD) is common in the elderly population, but pharmacological interventions for managing valvular calcification are unavailable. Transforming growth factor beta 1 (TGF-β1) and bone morphogenetic protein 2 (BMP-2) induce pro-osteogenic activation of human aortic valve interstitial cells (AVICs) that play an important role in valvular calcification. However, the molecular mechanism underlying pro-osteogenic activation in AVICs is incompletely understood. Here, we investigated an epigenetic regulatory mechanism in human AVIC pro-osteogenic activation induced by TGF-β1 and BMP-2...
April 4, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28368362/sus-scrofa-mir-204-and-mir-4331-negatively-regulate-swine-h1n1-2009-influenza-a-virus-replication-by-targeting-viral-ha-and-ns-respectively
#10
Shishuo Zhang, Ruifang Wang, Huijuan Su, Biaoxiong Wang, Suolang Sizhu, Zhixin Lei, Meilin Jin, Huanchun Chen, Jiyue Cao, Hongbo Zhou
The prevalence of swine pandemic H1N1/2009 influenza A virus (SIV-H1N1/2009) in pigs has the potential to generate novel reassortant viruses, posing a great threat to human health. Cellular microRNAs (miRNAs) have been proven as promising small molecules for regulating influenza A virus replication by directly targeting viral genomic RNA. In this study, we predicted potential Sus scrofa (ssc-, swine) miRNAs targeting the genomic RNA of SIV-H1N1/2009 by RegRNA 2.0, and identified ssc-miR-204 and ssc-miR-4331 to target viral HA and NS respectively through dual-luciferase reporter assays...
April 3, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28356702/appropriately-differentiated-arpe-19-cells-regain-phenotype-and-gene-expression-profiles-similar-to-those-of-native-rpe-cells
#11
William Samuel, Cynthia Jaworski, Olga A Postnikova, R Krishnan Kutty, Todd Duncan, Li Xuan Tan, Eugenia Poliakov, Aparna Lakkaraju, T Michael Redmond
PURPOSE: The RPE cell line ARPE-19 provides a dependable and widely used alternative to native RPE. However, replication of the native RPE phenotype becomes more difficult because these cells lose their specialized phenotype after multiple passages. Compounding this problem is the widespread use of ARPE-19 cells in an undifferentiated state to attempt to model RPE functions. We wished to determine whether suitable culture conditions and differentiation could restore the RPE-appropriate expression of genes and proteins to ARPE-19, along with a functional and morphological phenotype resembling native RPE...
2017: Molecular Vision
https://www.readbyqxmd.com/read/28337266/long-non-coding-rna-uca1-promotes-cell-progression-by-acting-as-a-competing-endogenous-rna-of-atf2-in-prostate-cancer
#12
Shilong Zhang, Xinxin Dong, Tongyu Ji, Guoxiao Chen, Lei Shan
Prostate cancer (PCa) is a leading cause of cancer-related deaths in elder men. This disease has limited therapeutic options and poor prognosis as the underlying molecular mechanisms are not clearly understood. LncRNA UCA1 functions as an oncogene in many types of cancers. However, the role of UCA1 in PCa remains unclear. In the present study, we showed that UCA1 was significantly up-regulated in PCa cell lines and tissue samples. High UCA1 expression was positively associated with high gleason score, advanced TNM stage and shorter overall survival of PCa patients...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28280358/mir-204-5p-acts-as-a-tumor-suppressor-by-targeting-matrix-metalloproteinases-9-and-b-cell-lymphoma-2-in-malignant-melanoma
#13
Wenkang Luan, Yao Qian, Xin Ni, Xuefeng Bu, Yun Xia, Jinlong Wang, Hongru Ruan, Shaojun Ma, Bin Xu
An increasing number of microRNAs have been found to be involved in tumorigenesis, including melanoma tumorigenesis. miR-204-5p is down-regulated and functions as a tumor suppressor in many human malignant tumors. miR-204-5p expression is also decreased in melanoma tissues, but its biological roles and molecular mechanisms in malignant melanoma remain unclear. In this study, the aberrant down-regulation of miR-204-5p was detected in melanoma, especially in metastatic melanoma. miR-204-5p also served as a protective factor for the prognosis of melanoma patients...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28264626/quantitative-changes-in-the-protein-and-mirna-cargo-of-plasma-exosome-like-vesicles-after-exposure-to-ionizing-radiation
#14
Ramesh Yentrapalli, Juliane Merl-Pham, Omid Azimzadeh, Lisa Mutschelknaus, Carsten Peters, Stefanie M Hauck, Michael J Atkinson, Soile Tapio, Simone Moertl
PURPOSE: Multiple cell types secrete exosome-like extracellular vesicles (ELVs) to the extracellular environment. Pathological conditions can produce characteristic changes to the vesicle cargo. We investigated if ionizing radiation is capable of inducing changes in the protein and microRNA (miRNA) cargo of ELVs. MATERIALS AND METHODS: Whole blood samples from healthy donors were irradiated with 2 Gy gamma rays and then peripheral blood mononuclear cells and plasma were separated from residual blood and co-cultivated for 24 h...
March 7, 2017: International Journal of Radiation Biology
https://www.readbyqxmd.com/read/28235791/high-throughput-screening-identifies-micrornas-that-target-nox2-and-improve-function-following-acute-myocardial-infarction
#15
Junyu Yang, Milton E Brown, Hanshuo Zhang, Mario Martinez, Zhihua Zhao, Srishti Bhutani, Shenyi Yin, David Trac, Jianzhong Jeff Xi, Michael E Davis
AIMS: Myocardial infarction (MI) is the most common cause of heart failure. Excessive production of reactive oxygen species plays a key role in the pathogenesis of cardiac remodeling after MI. NADPH with Nox2 as the catalytic subunit is a major source of superoxide production and expression is significantly increased in the infarcted myocardium, especially by infiltrating macrophages. While microRNAs (miRNAs) are potent regulators of gene expression, and play an important role in heart disease, there still lacks efficient ways to identify miRNAs that target important pathological genes for treating MI...
February 24, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28230291/therapeutic-potentials-of-bdnf-trkb-in-breast-cancer-current-status-and-perspectives
#16
Amir Tajbakhsh, Amin Mokhtari-Zaer, Mehdi Rezaee, Fahimeh Afzaljavan, Mehdi Rivandi, Seyed Mahdi Hassanian, Gordon A Ferns, Alireza Pasdar, Amir Avan
Brain-derived neurotrophic factor (BDNF) is a potent neurotrophic factor that has been shown to stimulate breast cancer cell growth and metastasis via tyrosine kinase receptors TrkA, TrkB and the p75(NTR) death receptor. The aberrant activation of BDNF/TrkB pathways can modulate several signaling pathways, including Akt/PI3K, Jak/STAT, NF-kB, UPAR/UPA, Wnt/β-catenin and VEGF pathways as well as the ER receptor. Several microRNAs have been identified that are involved in the modulation of BDNF/TrkB pathways...
February 23, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28199974/mir-204-down-regulation-elicited-perturbation-of-a-gene-target-signature-common-to-human-cholangiocarcinoma-and-gastric-cancer
#17
Valeria Canu, Andrea Sacconi, Laura Lorenzon, Francesca Biagioni, Federica Lo Sardo, Maria Grazia Diodoro, Paola Muti, Alfredo Garofalo, Sabrina Strano, Antonietta D'Errico, Gian Luca Grazi, Mario Cioce, Giovanni Blandino
BACKGROUND & AIMS: There is high need of novel diagnostic and prognostic tools for tumors of the digestive system, such as gastric cancer and cholangiocarcinoma. We recently found that miR-204 was deeply downregulated in gastric cancer tissues. Here we investigated whether this was common to other tumors of the digestive system and whether this elicited a miR-204-dependent gene target signature, diagnostically and therapeutically relevant. Finally, we assessed the contribution of the identified target genes to the cell cycle progression and clonogenicity of gastric cancer and cholangiocarcinoma cell lines...
February 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28181559/sirtuin1-protects-endothelial-caveolin-1-expression-and-preserves-endothelial-function-via-suppressing-mir-204-and-endoplasmic-reticulum-stress
#18
M Kassan, A Vikram, Y R Kim, Q Li, A Kassan, H H Patel, S Kumar, M Gabani, J Liu, J S Jacobs, K Irani
Sirtuin1 (Sirt1) is a class III histone deacetylase that regulates a variety of physiological processes, including endothelial function. Caveolin1 (Cav1) is also an important determinant of endothelial function. We asked if Sirt1 governs endothelial Cav1 and endothelial function by regulating miR-204 expression and endoplasmic reticulum (ER) stress. Knockdown of Sirt1 in endothelial cells, and in vivo deletion of endothelial Sirt1, induced endothelial ER stress and miR-204 expression, reduced Cav1, and impaired endothelium-dependent vasorelaxation...
February 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28161213/new-perspective-of-host-micrornas-in-the-control-of-prrsv-infection
#19
REVIEW
Fang Liu, Yinping Du, Wen-Hai Feng
Porcine reproductive and respiratory syndrome (PRRS) is one of the most important diseases in pigs, leading to significant economic losses in swine industry worldwide. PRRS virus (PRRSV) is an enveloped positive single-stranded RNA virus, which mainly infects cells of monocyte/macrophage lineage. MicroRNAs (miRNAs) are small non-coding RNAs and have emerged as important regulators of virus-host cell interactions. In the past several years, scientists have been trying to understand the interaction between host miRNAs and PRRSV infection...
January 9, 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/28133610/histological-and-pathological-assessment-of-mir-204-and-sox4-levels-in-gastric-cancer-patients
#20
Xiao Yuan, Shuanhu Wang, Mulin Liu, Zhen Lu, Yanqing Zhan, Wenbin Wang, A-Man Xu
Gastric cancer is one of the most common cancers and the efficient therapeutic methods are limited. Further study of the exact molecular mechanism of gastric cancer to develop novel targeted therapies is necessary and urgent. We herein systematically examined that miR-204 suppressed both proliferation and metastasis of gastric cancer AGS cells. miR-204 directly targeted SOX4. In clinical tissue research, we determined that miR-204 was expressed much lower and SOX4 expressed much higher in gastric cancer tissues compared with normal gastric tissues...
2017: BioMed Research International
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