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miRNA Bladder

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https://www.readbyqxmd.com/read/29438779/down-regulation-of-mirna-320c-promotes-tumor-growth-and-metastasis-and-predicts-poor-prognosis-in-human-glioma
#1
Qiao-Li Lv, Hui-Ting Zhu, Xiao-Hua Cheng, Hong-Mi Li, Hong-Hao Zhou, Shu-Hui Chen
Emerging studies show that dysregulated miRNAs are implicated in tumorigenesis and progression of various cancers. MiRNA-320c, an important member of miRNA-320 family, was characterized as a new candidate miRNA that suppressed the development of colorectal cancer and bladder cancer. However, the function of miRNA-320c in human glioma remained unclear. Here, we found that miRNA-320c was significantly down-regulated in glioma tissues and cell lines in contrast with normal brain tissues, being tightly related to clinical stage of glioma by qRT-PCR...
February 10, 2018: Brain Research Bulletin
https://www.readbyqxmd.com/read/29434190/mir-22-suppresses-epithelial-mesenchymal-transition-in-bladder-cancer-by-inhibiting-snail-and-mapk1-slug-vimentin-feedback-loop
#2
Mingjie Xu, Jiangfeng Li, Xiao Wang, Shuai Meng, Jiaying Shen, Song Wang, Xin Xu, Bo Xie, Ben Liu, Liping Xie
MicroRNAs (miRNAs) have been validated to play prominent roles in the occurrence and development of bladder cancer (BCa). MiR-22 was previously reported to act as a tumor suppressor or oncomiRNA in various types of cancer. However, its accurate expression, function, and mechanism in BCa remain unclear. Here, we find that miR-22 is frequently downregulated in BCa tissues compared with adjacent non-cancerous tissues. Overexpression of miR-22 significantly inhibits proliferation, migration, and invasion of BCa cells both in vitro and in vivo...
February 12, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29402794/bdnf-val66met-polymorphism-elevates-the-risk-of-bladder-cancer-via-mirna-146b-in-micro-vehicles
#3
Cong Li, Xing Zeng, Zheng Liu, Fan Li, Kun Wang, Baisen Wu
BACKGROUND/AIMS: Emerging studies on brain-derived neurotrophic factor (BDNF) have shown that might be novel biomarkers and therapeutic targets for cancer. We explore the role of BDNF in the tumorigenesis of bladder cancer and the underlying molecular mechanism. METHODS: 368 patients with diagnosed bladder cancer and 352 healthy controls were enrolled to evaluate the association of BDNF and the miR-146b. Bioinformatics algorithm analysis and luciferase assay were performed to identify the target genes of miR-146b...
January 22, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29386015/circular-rna-circ-itch-inhibits-bladder-cancer-progression-by-sponging-mir-17-mir-224-and-regulating-p21-pten-expression
#4
Chengdi Yang, Wenbo Yuan, Xiao Yang, Peng Li, Jingzi Wang, Jie Han, Jun Tao, Pengchao Li, Haiwei Yang, Qiang Lv, Wei Zhang
BACKGROUND: Circ-ITCH is a circRNA generated from several exons of itchy E3 ubiquitin protein ligase (ITCH) and tumor suppressor served as a sponge for certain miRNAs targeting their parental transcripts of ITCH. However, the role of circ-ITCH in bladder cancer (BCa) was not reported. In the present study, we investigated the role of circ-ITCH in BCa. METHODS: Quantitative real-time PCR was used to detect the expression of circ-ITCH and survival analysis was adopted to explore the association between circ-ITCH expression and the prognosis of BCa...
January 31, 2018: Molecular Cancer
https://www.readbyqxmd.com/read/29379304/mir-99a-5p-acts-as-tumor-suppressor-via-targeting-to-mtor-and-enhances-rad001-induced-apoptosis-in-human-urinary-bladder-urothelial-carcinoma-cells
#5
Te-Fu Tsai, Ji-Fan Lin, Kuang-Yu Chou, Yi-Chia Lin, Hung-En Chen, Thomas I-Sheng Hwang
Introduction: miR-99a-5p, known to play an important role in mammalian target of rapamycin (mTOR) regulation, is downregulated in human bladder cancer. The study aimed to investigate the anticancer activity of miR-99a-5p and the possible mechanism associated with mTOR in bladder cancer cells. Materials and methods: Vectors expressing miR-99a-5p were transfected into human urinary bladder urothelial carcinoma (5637 and T24) cells. The level of miR-99a-5p was monitored by microRNA (miRNA) quantitative polymerase chain reaction (QPCR)...
2018: OncoTargets and Therapy
https://www.readbyqxmd.com/read/29363887/genome-wide-identification-of-urinary-cell-free-micrornas-for-non-invasive-detection-of-bladder-cancer
#6
Jaroslav Juracek, Barbora Peltanova, Jan Dolezel, Michal Fedorko, Dalibor Pacik, Lenka Radova, Petra Vesela, Marek Svoboda, Ondrej Slaby, Michal Stanik
Urinary microRNAs (miRNAs) are emerging as clinically useful tool for early and non-invasive detection of various types of cancer including bladder cancer (BCA). In this study, 205 patients with BCA and 99 healthy controls were prospectively enrolled. Expression profiles of urinary miRNAs were obtained using Affymetrix miRNA microarrays (2578 miRNAs) and candidate miRNAs further validated in independent cohorts using qRT-PCR. Whole-genome profiling identified 76 miRNAs with significantly different concentrations in urine of BCA compared to controls (P < 0...
January 24, 2018: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29357417/array-profiling-reveals-contribution-of-cthrc1-to-growth-of-the-denervated-rat-urinary-bladder
#7
Baoyi Zhu, Mari Ekman, Daniel Svensson, Jessica Lindvall, Bengt-Olof Nilsson, Bengt Uvelius, Karl Swärd
Bladder denervation and bladder outlet obstruction are urological conditions that cause bladder growth. Transcriptomic surveys in outlet obstruction have identified differentially expressed genes, but similar studies following denervation have not been done. This was addressed using a rat model in which the pelvic ganglia were cryo-ablated followed by bladder microarray analyses. At 10 days following denervation, bladder weight had increased 5.6-fold and 2890 mRNAs and 135 miRNAs were differentially expressed...
January 10, 2018: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/29340088/identification-of-bladder-cancer-prognostic-biomarkers-using-an-ageing-gene-related-competitive-endogenous-rna-network
#8
Changliang Wang, Liang Chen, Yang Yang, Menglei Zhang, Garry Wong
Competitive endogenous RNAs (ceRNAs) are a newly proposed RNA interaction mechanism that has been associated with the initiation and progression of various cancers. In this study, we constructed an ageing gene related ceRNA network (AgeingCeNet) in bladder cancer. Network analysis revealed that ageing gene ceRNAs have a larger degree and closeness centrality than ageing genes themselves. Notably, the difference of betweenness centrality of ageing genes and their ceRNAs is not significant, suggesting that the ceRNAs of ageing genes and ageing genes themselves both play important communication roles in AgeingCeNet...
December 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29300757/the-effects-of-alternative-splicing-on-mirna-binding-sites-in-bladder-cancer
#9
Seonggyun Han, Dongwook Kim, Manu Shivakumar, Young-Ji Lee, Tullika Garg, Jason E Miller, Ju Han Kim, Dokyoon Kim, Younghee Lee
Eukaryotic organisms have developed a variety of mechanisms to regulate translation post-transcriptionally, including but not limited to the use of miRNA silencing in many species. One method of post-transcriptional regulation is through miRNAs that bind to the 3' UTRs to regulate mRNA abundance and influence protein expression. Therefore, the diversity of mRNA 3' UTRs mediating miRNA binding sites influence miRNA-mediated regulation. Alternative polyadenylation, by shortening mRNA isoforms, increases the diversity of 3' UTRs; moreover, short mRNA isoforms elude miRNA-medicated repression...
2018: PloS One
https://www.readbyqxmd.com/read/29298735/mir-202-inhibits-cell-proliferation-migration-and-invasion-by-targeting-egfr-in-human-bladder-cancer
#10
Liqing Zhang, Jianjiang Xu, Gaodi Yang, Heng Li, Xiuxia Guo
Recent studies have demonstrated that miR-202 is associated with several types of cancer; however, the expression and function of miR-202 have not been investigated in bladder cancer. Here, we analyzed the expression of miR-202 in bladder cancer tissue and adjacent non-cancerous tissues. The effect of miR-202 on proliferation, migration and invasion was evaluated by in-vitro assays. The target gene of miR-202 was assessed by luciferase reporter assay. In this study, miR-202 was found to be significantly downregulated in bladder cancer cell lines and tissues, and was highly correlated with the T classification, N classification, grade, and recurrence...
January 3, 2018: Oncology Research
https://www.readbyqxmd.com/read/29291244/unveiling-massive-numbers-of-cancer-related-urinary-microrna-candidates-via-nanowires
#11
Takao Yasui, Takeshi Yanagida, Satoru Ito, Yuki Konakade, Daiki Takeshita, Tsuyoshi Naganawa, Kazuki Nagashima, Taisuke Shimada, Noritada Kaji, Yuta Nakamura, Ivan Adiyasa Thiodorus, Yong He, Sakon Rahong, Masaki Kanai, Hiroshi Yukawa, Takahiro Ochiya, Tomoji Kawai, Yoshinobu Baba
Analyzing microRNAs (miRNAs) within urine extracellular vesicles (EVs) is important for realizing miRNA-based, simple, and noninvasive early disease diagnoses and timely medical checkups. However, the inherent difficulty in collecting dilute concentrations of EVs (<0.01 volume %) from urine has hindered the development of these diagnoses and medical checkups. We propose a device composed of nanowires anchored into a microfluidic substrate. This device enables EV collections at high efficiency and in situ extractions of various miRNAs of different sequences (around 1000 types) that significantly exceed the number of species being extracted by the conventional ultracentrifugation method...
December 2017: Science Advances
https://www.readbyqxmd.com/read/29285271/identification-of-a-three-mirna-signature-as-a-novel-potential-prognostic-biomarker-in-patients-with-bladder-cancer
#12
Fei Peng, Hui Li, Hailang Xiao, Ling Li, Yan Li, Yi Wu
There is not a good biomaker that is closely related to survival time for bladder cancer(BLCA), The aim of the study is to identify a miRNA signature that could predict prognosis in BLCA patients according to the data from The Cancer Genome Atlas (TCGA). a total of 377 BLCA patients were finally enrolled in the study. The three miRNA signature was identified by Multivariate Cox proportional hazards analyses that common clinical variables were controled. The three microRNA signature showed greater predicting prognosis capacity for predicting 5-year survival in BLCA with an AUC of 0...
December 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/29275364/genetic-variations-in-the-3-untranslated-regions-of-genes-involved-in-the-cell-cycle-and-apoptosis-pathways-affect-bladder-cancer-risk
#13
Qiang Zhang, Wenying Wang, Weidong Xu, Mulong DU, Gaoxiang Ma, Hanting Liu, Haiyan Chu, N A Tong, Meilin Wang, Jianfeng Shao, Zhengdong Zhang, Lin Yuan, Jing Qian
BACKGROUND: Key genes related to cell cycle and apoptosis pathways play critical roles in bladder cancer. Single nucleotide polymorphisms (SNPs) in the 3'-untranslated regions (3'-UTR) of genes may impact microRNA (miRNA)-messenger RNA (mRNA) binding capacity and alter gene expression to contribute to the susceptibility of cancers. However, an association of genetic variations in cell cycle and apoptosis pathways with bladder cancer risk, has not been reported. MATERIALS AND METHODS: We selected SNPs in the 3'-UTR of cell cycle and apoptosis pathways genes and genotyped them with a case-control study consisting of 578 bladder cancer patients and 1,006 cancer-free subjects...
January 2018: Cancer Genomics & Proteomics
https://www.readbyqxmd.com/read/29226853/clinical-and-rna-expression-integrated-signature-for-urothelial-bladder-cancer-prognosis
#14
Jie Xiong, Ke Xiong, Zhitong Bing
BACKGROUND: Accumulating evidence shows that clinical factors alone are not adequate for predicting the survival of patients with urothelial bladder cancer (UBC), and many genes have been found to be associated with UBC prognosis. PURPOSE: The objective of this study is to develop a signature which integrates clinical and molecular information to predict the overall survival of UBC patients more accurate. MATERIALS AND METHODS: We integrated messenger RNA (mRNA) and microRNA (miRNA) expression profiles and the corresponding clinical data of 402 UBC patients and 19 normal controls from The Cancer Genome Atlas...
November 25, 2017: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/29200870/identification-of-hub-mirna-biomarkers-for-bladder-cancer-by-weighted-gene-coexpression-network-analysis
#15
Feng Zhao, Yu-Zheng Ge, Liu-Hua Zhou, Lu-Wei Xu, Zheng Xu, Wen-Wen Ping, Min Wang, Chang-Cheng Zhou, Ran Wu, Rui-Peng Jia
Bladder cancer (BC) is a common urinary system tumor with high aggressiveness, and it results in relatively high mortality due to a lack of precise and suitable biomarkers. In this study, we applied the weighted gene coexpression network analysis method to miRNA expression data from BC patients, and screened for network modules associated with BC progression. Hub miRNAs were selected, followed by functional enrichment analyses of their target genes for the most closely related module. These hub miRNAs were found to be involved in several functional pathways including pathway in cancer, regulation of actin cytoskeleton, PI3K-Akt signaling pathway, mitogen-activated protein kinase (MAPK) signaling pathway, Wnt signaling pathway, proteoglycans in cancer, focal adhesion and p53 signaling pathway via regulating target genes...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/29200659/electrochemical-detection-of-urinary-micrornas-via-sulfonamide-bound-antisense-hybridisation
#16
Daniel A Smith, Lucy J Newbury, Guido Drago, Timothy Bowen, James E Redman
Altered serum and plasma microRNA (miRNA) expression profiles have been observed in numerous human diseases, with a number of studies describing circulating miRNA biomarkers for cancer diagnosis, prognosis and response to treatment, and recruitment to clinical trials for miRNA-based drug therapy already underway. Electrochemical detection of biomarkers in urine has several significant advantages over circulating biomarker analysis including safety, cost, speed and ease of conversion to the point of care environment...
December 2017: Sensors and Actuators. B, Chemical
https://www.readbyqxmd.com/read/29196070/evaluation-of-urinary-dna-methylation-as-a-marker-for-recurrent-bladder-cancer-a-2-center-prospective-study
#17
Tetsuya Shindo, Takashi Shimizu, Masanori Nojima, Takeshi Niinuma, Reo Maruyama, Hiroshi Kitajima, Masahiro Kai, Naoki Itoh, Hiromu Suzuki, Naoya Masumori
OBJECTIVE: To clarify the clinical utility of urinary DNA methylation for detection of intravesical recurrence of non-muscle invasive BCa (NMIBC), we performed a 2-center prospective study. PATIENTS AND METHODS: A series of 207 self-voided urine samples were prospectively collected from 132 patients with NMIBC who had undergone transurethral resection of BCa. Methylation of miRNA genes (miR-9-3, miR-124-2, miR-124-3, and miR-137) was analyzed using bisulfite pyrosequencing...
November 28, 2017: Urology
https://www.readbyqxmd.com/read/29143172/identification-of-key-genes-and-construction-of-microrna-mrna-regulatory-networks-in-bladder-smooth-muscle-cell-response-to-mechanical-stimuli-using-microarray-expression-profiles-and-bioinformatics-analysis
#18
Liao Peng, De-Yi Luo
PURPOSE: To identify keys genes and elucidate miRNA-mRNA regulatory networks in Bladder smooth muscle cell (BSMC) response to mechanical stimuli. METHODS: Human BSMCs, seeded on a silicone membrane, were subjected to mechanical stretch or without stretch. Microarray was used to analyze the differential expression of mRNAs and miRNAs between human BSMCs under mechanical stretch and control static control group. Differentially expressed genes(DEGs) and miRNAs (DEMs) in these two groups were identified...
November 15, 2017: World Journal of Urology
https://www.readbyqxmd.com/read/29141625/microrna-profiling-of-dogs-with-transitional-cell-carcinoma-of-the-bladder-using-blood-and-urine-samples
#19
Michael S Kent, Allison Zwingenberger, Jodi L Westropp, Laura E Barrett, Blythe P Durbin-Johnson, Paramita Ghosh, Ruth L Vinall
BACKGROUND: Early signs of canine transitional cell carcinoma (TCC) are frequently assumed to be caused by other lower urinary tract diseases (LUTD) such as urinary tract infections, resulting in late diagnosis of TCC which could be fatal. The development of a non-invasive clinical test for TCC could dramatically reduce mortality. To determine whether microRNAs (miRNAs) can be used as non-invasive diagnostic biomarkers, we assessed miRNA expression in blood and/or urine from dogs with clinically normal bladders (n = 28), LUTD (n = 25), and TCC (n = 17)...
November 15, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/29131138/impact-of-altered-wnt2b-expression-on-bladder-wall-fibroblasts-implications-for-apoptosis-regulation-in-the-stroma-of-the-lower-urinary-tract
#20
Thomas Stefan Worst, Kristina Daskalova, Annette Steidler, Karin Berner-Leischner, Ralph Röth, Beate Niesler, Maximilian C Kriegmair, Philipp Erben, Daniel Pfalzgraf
BACKGROUND: Little is known about the role of WNT signalling in pathological processes involving the urinary tract stroma. Here the impact of WNT signalling on bladder wall fibroblasts (BWFs) was studied using integrated expression profiling. MATERIAL AND METHODS: WNT ligand and downstream WNT pathway component expression was profiled in human BWFs using qRT-PCR. Highly expressed WNT2B was knocked down using siRNA in BWFs. The expression of 730 mRNAs and 800 miRNAs was analyzed on the nCounter MAX platform in #WNT2B and control transfected BWFs...
October 31, 2017: Urologia Internationalis
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