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miRNA Bladder

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https://www.readbyqxmd.com/read/29029427/environment-and-bladder-cancer-molecular-analysis-by-interaction-networks
#1
Andrea Polo, Anna Crispo, Pellegrino Cerino, Luca Falzone, Saverio Candido, Aldo Giudice, Giuseppina De Petro, Gennaro Ciliberto, Maurizio Montella, Alfredo Budillon, Susan Costantini
Bladder cancer (BC) is the 9th most common cancer worldwide, and the 6th most common cancer in men. Its development is linked to chronic inflammation, genetic susceptibility, smoking, occupational exposures and environmental pollutants. Aim of this work was to identify a sub-network of genes/proteins modulated by environmental or arsenic exposure in BC by computational network approaches. Our studies evidenced the presence of HUB nodes both in "BC and environment" and "BC and arsenicals" networks. These HUB nodes resulted to be correlated to circadian genes and targeted by some miRNAs already reported as involved in BC, thus suggesting how they play an important role in BC development due to environmental or arsenic exposure...
September 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/28990088/identification-and-bioinformatics-analysis-of-mirnas-associated-with-human-muscle-invasive-bladder-cancer
#2
Liang Chen, Lushun Yuan, Gang Wang, Rui Cao, Jianping Peng, Bo Shu, Guofeng Qian, Xinghuan Wang, Yu Xiao
Accumulated evidence has indicated that micro (mi)RNAs play vital roles in the occurrence and development of human muscle invasive bladder cancer (MIBC), however, little is known about the miRNAs' regulatory networks. In the present study, the authors aimed to use bioinformatics analysis to identify the key miRNAs and potential target genes, as well as studying the underlying mechanisms for MIBC. They collected several human MIBC tissues to generate a miRNA expression analysis by microarray analysis comparing with normal bladder tissues, identifying 104 differentially expressed miRNAs (102 were downregulated and 2 were upregulated) and predicted 11,884 putative target genes of the dysregulated miRNAs...
October 4, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28988769/comprehensive-molecular-characterization-of-muscle-invasive-bladder-cancer
#3
A Gordon Robertson, Jaegil Kim, Hikmat Al-Ahmadie, Joaquim Bellmunt, Guangwu Guo, Andrew D Cherniack, Toshinori Hinoue, Peter W Laird, Katherine A Hoadley, Rehan Akbani, Mauro A A Castro, Ewan A Gibb, Rupa S Kanchi, Dmitry A Gordenin, Sachet A Shukla, Francisco Sanchez-Vega, Donna E Hansel, Bogdan A Czerniak, Victor E Reuter, Xiaoping Su, Benilton de Sa Carvalho, Vinicius S Chagas, Karen L Mungall, Sara Sadeghi, Chandra Sekhar Pedamallu, Yiling Lu, Leszek J Klimczak, Jiexin Zhang, Caleb Choo, Akinyemi I Ojesina, Susan Bullman, Kristen M Leraas, Tara M Lichtenberg, Catherine J Wu, Nicholaus Schultz, Gad Getz, Matthew Meyerson, Gordon B Mills, David J McConkey, John N Weinstein, David J Kwiatkowski, Seth P Lerner
We report a comprehensive analysis of 412 muscle-invasive bladder cancers characterized by multiple TCGA analytical platforms. Fifty-eight genes were significantly mutated, and the overall mutational load was associated with APOBEC-signature mutagenesis. Clustering by mutation signature identified a high-mutation subset with 75% 5-year survival. mRNA expression clustering refined prior clustering analyses and identified a poor-survival "neuronal" subtype in which the majority of tumors lacked small cell or neuroendocrine histology...
October 4, 2017: Cell
https://www.readbyqxmd.com/read/28977982/pooling-analysis-for-diagnostic-and-prognostic-value-of-mirna-100-in-various-cancers
#4
REVIEW
Zhe Dou, Shuai Lin, Cong Dai, Ye Lu, Tian Tian, Meng Wang, Xinghan Liu, Yi Zheng, Peng Xu, Shanli Li, Qianwen Sheng, Yujiao Deng, Zhijun Dai
Many studies manifested miRNA-100 was deregulated in various cancers, which indicated that miRNA-100 might be a potential biomarker of cancer diagnosis and prognosis. However, the role of miRNA-100 was still uncertain. We searched for qualified studies using PubMed, EMBASE, Web of Science, Cochrane library and CNKI databases. The diagnostic effect was evaluated by the pooled sensitivity, specificity, and other indexes. Pooled hazard ratios (HRs) with 95% confidence intervals (CIs) for overall survival (OS) were calculated to assess the prognostic value...
September 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28966690/microrna-186-regulates-the-invasion-and-metastasis-of-bladder-cancer-via-vascular-endothelial-growth-factor-c
#5
Xuefeng He, Jigen Ping, Duangai Wen
The present study aimed to investigate the expression of microRNA (miRNA or miR)-186 in tumor tissue, blood and urine from patients with bladder cancer. The mechanism by which miR-186 regulates the invasion and metastasis of bladder cancer was also assessed. A total of 76 patients who underwent surgical resection of bladder cancer tissues between August 2012 and January 2016 were included in the present study. Blood and urine samples were also collected from the 76 patients and another 66 healthy subjects. Expression of vascular endothelial growth factor C (VEGF-C) mRNA and miR-186 was measured using reverse transcription-quantitative polymerase chain reaction...
October 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28938555/exosomes-of-invasive-urothelial-carcinoma-cells-are-characterized-by-a-specific-mirna-expression-signature
#6
Sophie Baumgart, Sebastian Hölters, Carsten-Henning Ohlmann, Rainer Bohle, Michael Stöckle, Marie Stampe Ostenfeld, Lars Dyrskjøt, Kerstin Junker, Joana Heinzelmann
Muscle-invasive bladder cancer (MIBC) represents a highly aggressive tumor type compared to non-muscle-invasive tumors. MIBC is characterized by specific molecular alterations, which may also modulate extracellular tumorigenic effects. Tumor-associated exosomes, especially exosomal miRNAs, are important regulators in the interaction between tumor cells and tumor microenvironment by affecting tumor-promoting processes in target cells. It is important to analyze whether their exosomal patterns also reflect the specific molecular characteristics of MIBC...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28928837/independent-prognostic-mirnas-for-bladder-urothelial-carcinoma
#7
Yingbo Hu, Cheng Cheng, Zhengdong Hong, Ziming Shi
Bladder cancer is the most common malignant tumor of the urinary system, and it is also an important cause of death by cancer globally. Increasing number of studies have shown that miRNAs can be used as prognostic markers for cancers. This study made use of the data available in the Cancer Genome Atlas in order to statistically analyze reported expression levels of miRNAs in samples from bladder urothelial carcinoma patients. Clinical features from a total of 399 patients and the expression data for 1,581 kinds of miRNA were included in the study...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28885452/microrna-mediated-downregulation-of-potassium-chloride-cotranspoter-and-vesicular-%C3%AE-aminobutyric-acid-transporter-expression-in-spinal-cord-contributes-to-neonatal-cystitis-induced-visceral-pain-in-rats
#8
Jian Zhang, James Yu, Pradeep Kannampalli, Linghui Nie, Hui Meng, Bidyut K Medda, Reza Shaker, Jyoti N Sengupta, Banani Banerjee
Loss of GABAergic inhibition in pain pathways has been considered to be a key component in the development of chronic pain. In the present study, we intended to examine whether miR-92b-mediated posttranscriptional dysregulation of spinal potassium chloride cotransporter (KCC2) and vesicular γ-aminobutyric acid transporter (VGAT) plays a major role in the development and maintenance of long-term visceral hyperalgesia in neonatal zymosan-treated rats. Neonatal cystitis was induced by transurethral zymosan administration from postnatal (P) days 14 to 16 (protocol 1)...
September 1, 2017: Pain
https://www.readbyqxmd.com/read/28879675/mir-199a-3p-and-mir-214-3p-improve-the-overall-survival-prediction-of-muscle-invasive-bladder-cancer-patients-after-radical-cystectomy
#9
Thorsten H Ecke, Katja Stier, Sabine Weickmann, Zhongwei Zhao, Laura Buckendahl, Carsten Stephan, Ergin Kilic, Klaus Jung
To improve the clinical decision-making regarding further treatment management and follow-up scheduling for patients with muscle-invasive bladder cancer (MIBC) after radical cystectomy (RC), a better prediction accuracy of prognosis for these patients is urgently needed. The objective of this study was to evaluate the validity of differentially expressed microRNAs (miRNAs) based on a previous study as prognostic markers for overall survival (OS) after RC in models combined with clinicopathological data. The expression of six miRNAs (miR-100-5p, miR-130b-3p, miR-141-3p, miR-199a-3p, miR-205-5p, and miR-214-3p) was measured by RT-qPCR in formalin-fixed, paraffin-embedded tissue samples from 156 MIBC patients who received RC in three urological centers...
September 6, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28869948/the-long-non-coding-rna-xist-interacted-with-mir-124-to-modulate-bladder-cancer-growth-invasion-and-migration-by-targeting-androgen-receptor-ar
#10
Yaoyao Xiong, Long Wang, Yuan Li, Minfeng Chen, Wei He, Lin Qi
BACKGROUNDS/AIMS: Long non-coding RNA (lncRNA) X-inactive specific transcript (XIST) is involved in the progression of several tumors. The interaction between lncRNA and miRNA or miRNA's target genes is reported to play crucial roles in malignancy. In addition, Androgen receptor (AR) is considered to be involved in bladder cancer progression. In this study, we investigated the role of XIST in human bladder cancer and its interaction with miR-124 and AR. METHODS: XIST and AR expression was detected in bladder tumor samples and cell lines...
August 31, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28837140/met-smad3-snail-circuit-mediated-by-mir-323a-3p-is-involved-in-regulating-epithelial-mesenchymal-transition-progression-in-bladder-cancer
#11
Jiangfeng Li, Xin Xu, Shuai Meng, Zhen Liang, Xiao Wang, Mingjie Xu, Song Wang, Shiqi Li, Yi Zhu, Bo Xie, Yiwei Lin, Xiangyi Zheng, Ben Liu, Liping Xie
Bladder cancer (BCa) is the one of the most common cancers with high incidence, occurrence and low 5-year survival rate. Emerging evidence indicates that DLK1-DIO3 genomic region especially the miRNA cluster in this region is involved in several pathologic processes and various cancers, and miR-323a-3p is a member of this miRNA cluster. In this study, we investigate the function and regulatory network of miR-323a-3p in BCa. miR-323a-3p is frequently downregulated in BCa tissues and three cell lines compared with adjacent non-tumorous tissues and bladder normal cell line (SV-HUC-1)...
August 24, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28827400/upf1-helicase-promotes-tsn-mediated-mirna-decay
#12
Reyad A Elbarbary, Keita Miyoshi, Omar Hedaya, Jason R Myers, Lynne E Maquat
While microRNAs (miRNAs) regulate the vast majority of protein-encoding transcripts, little is known about how miRNAs themselves are degraded. We recently described Tudor-staphylococcal/micrococcal-like nuclease (TSN)-mediated miRNA decay (TumiD) as a cellular pathway in which the nuclease TSN promotes the decay of miRNAs that contain CA and/or UA dinucleotides. While TSN-mediated degradation of either protein-free or AGO2-loaded miRNAs does not require the ATP-dependent RNA helicase UPF1 in vitro, we report here that cellular TumiD requires UPF1...
July 15, 2017: Genes & Development
https://www.readbyqxmd.com/read/28791388/bioinformatic-analysis-of-microrna-mrna-expression-profiles-of-bladder-tissue-induced-by-bladder-outlet-obstruction-in-a-rat-model
#13
Liu Jian Duan, Qi Feng Cao, Ding Xu, Hai Long Liu, Jun Qi
Various microRNAs (miRNAs) have previously been demonstrated to exhibit an association with the process of bladder remodeling, induced by bladder outlet obstruction (BOO). However, little is known about miRNA and gene expression profiles and the molecular mechanism underlying bladder pathophysiological alterations. The present study used bioinformatic analysis technology to examine the altered miRNA and mRNA expression profiles of bladder tissue in a rat model of BOO and validate the involved signaling pathways...
October 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28774300/diagnostic-significance-of-micrornas-as-novel-biomarkers-for-bladder-cancer-a-meta-analysis-of-ten-articles
#14
Hong-Bin Shi, Jia-Xing Yu, Jian-Xiu Yu, Zheng Feng, Chao Zhang, Guang-Yong Li, Rui-Ning Zhao, Xiao-Bo Yang
BACKGROUND: Previous studies have revealed the importance of microRNAs' (miRNAs) function as biomarkers in diagnosing human bladder cancer (BC). However, the results are discordant. Consequently, the possibility of miRNAs to be BC biomarkers was summarized in this meta-analysis. METHODS: In this study, the relevant articles were systematically searched from CBM, PubMed, EMBASE, and Chinese National Knowledge Infrastructure (CNKI). The bivariate model was used to calculate the pooled diagnostic parameters and summary receiver operator characteristic (SROC) curve in this meta-analysis, thereby estimating the whole predictive performance...
August 3, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28703782/understanding-the-role-of-non-coding-rnas-in-bladder-cancer-from-dark-matter-to-valuable-therapeutic-targets
#15
REVIEW
Cecilia Pop-Bica, Diana Gulei, Roxana Cojocneanu-Petric, Cornelia Braicu, Bogdan Petrut, Ioana Berindan-Neagoe
The mortality and morbidity that characterize bladder cancer compel this malignancy into the category of hot topics in terms of biomolecular research. Therefore, a better knowledge of the specific molecular mechanisms that underlie the development and progression of bladder cancer is demanded. Tumor heterogeneity among patients with similar diagnosis, as well as intratumor heterogeneity, generates difficulties in terms of targeted therapy. Furthermore, late diagnosis represents an ongoing issue, significantly reducing the response to therapy and, inevitably, the overall survival...
July 13, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28700340/pooling-analysis-for-diagnostic-and-prognostic-value-of-mirna-100-in-various-cancers
#16
REVIEW
Zhe Dou, Shuai Lin, Cong Dai, Ye Lu, Tian Tian, Meng Wang, Xinghan Liu, Yi Zheng, Peng Xu, Shanli Li, Qianwen Sheng, Yujiao Deng, Zhijun Dai
Many studies manifested miRNA-100 was deregulated in various cancers, which indicated that miRNA-100 might be a potential biomarker of cancer diagnosis and prognosis. However, the role of miRNA-100 was still uncertain. We searched for qualified studies using PubMed, EMBASE, Web of Science, Cochrane library and CNKI databases. The diagnostic effect was evaluated by the pooled sensitivity, specificity, and other indexes. Pooled hazard ratios (HRs) with 95% confidence intervals (CIs) for overall survival (OS) were calculated to assess the prognostic value...
June 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/28688231/exosomes-of-invasive-urothelial-carcinoma-cells-are-characterized-by-a-specific-mirna-expression-signature
#17
Sophie Baumgart, Sebastian Hölters, Carsten-Henning Ohlmann, Rainer Bohle, Michael Stöckle, Marie Stampe Ostenfeld, Lars Dyrskjøt, Kerstin Junker, Joana Heinzelmann
Muscle-invasive bladder cancer (MIBC) represents a highly aggressive tumor type compared to non-muscle-invasive tumors. MIBC is characterized by specific molecular alterations, which may also modulate extracellular tumorigenic effects. Tumor-associated exosomes, especially exosomal miRNAs, are important regulators in the interaction between tumor cells and tumor microenvironment by affecting tumor-promoting processes in target cells. It is important to analyze whether their exosomal patterns also reflect the specific molecular characteristics of MIBC...
May 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28656286/microrna-497-upregulation-inhibits-cell-invasion-and-metastasis-in-t24-and-biu-87-bladder-cancer-cells
#18
Zhiyong Wei, Xiaofeng Hu, Junjie Liu, Wenbin Zhu, Xuemei Zhan, Shuhong Sun
Previous studies have reported the crucial role of microRNAs (miRNAs) in the biology and tumorigenesis of various types of cancer, including bladder cancer. The present study aimed to investigate the importance of miRNA (miR)‑497 on the pathogenesis of bladder cancer. A total of 50 patients diagnosed with bladder cancer were enrolled in the current study. The expression levels of miR‑497 in the cancerous and the adjacent noncancerous tissues were detected using reverse transcription‑quantitative polymerase chain reaction...
August 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28654897/secreted-mir-210-3p-as-non-invasive-biomarker-in-clear-cell-renal-cell-carcinoma
#19
Vincenzo Petrozza, Antonio Luigi Pastore, Giovanni Palleschi, Claudia Tito, Natale Porta, Serena Ricci, Chiara Marigliano, Manuela Costantini, Giuseppe Simone, Angelina Di Carlo, Michele Gallucci, Antonio Carbone, Francesco Fazi
The most common subtype of renal cell carcinoma (RCC) is clear cell RCC (ccRCC). It accounts for 70-80% of all renal malignancies representing the third most common urological cancer after prostate and bladder cancer. The identification of non-invasive biomarkers for the diagnosis and responsiveness to therapy of ccRCC may represent a relevant step-forward in ccRCC management. The aim of this study is to evaluate whether specific miRNAs deregulated in ccRCC tissues present altered levels also in urine specimens...
June 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/28636312/combining-protein-and-mirna-quantification-for-bladder-cancer-analysis
#20
Ruixue Duan, Zhenyu Zhang, Fuxin Zheng, Longwang Wang, Ju Guo, Tianchi Zhang, Xiaomeng Dai, Shengwei Zhang, Dong Yang, Renrui Kuang, Gongxian Wang, Chaohong He, Abdul Hakeem, Chang Shu, Ping Yin, Xiaoding Lou, Fuqing Zeng, Huageng Liang, Fan Xia
We combine the telomerase extension reaction and microRNA (miRNA)-induced rolling circle amplification, followed by graphene oxide (GO) and nicking enzyme-assisted signal amplification as a method to analyze telomerase and miRNA-21 in urine samples with the following merits. First, it is a binary assay and can simultaneously output double signals that correspond to the quantities of telomerase and miRNA, respectively. Second, telomerase activity is enhanced by using a DNA molecular beacon probe to inhibit the formation of G-quadruplex...
July 19, 2017: ACS Applied Materials & Interfaces
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