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https://www.readbyqxmd.com/read/28501916/micrornas-in-injury-and-repair
#1
REVIEW
Cory V Gerlach, Vishal S Vaidya
Organ damage and resulting pathologies often involve multiple deregulated pathways. MicroRNAs (miRNAs) are short, non-coding RNAs that regulate a multitude of genes at the post-transcriptional level. Since their discovery over two decades ago, miRNAs have been established as key players in the molecular mechanisms of mammalian biology including the maintenance of normal homeostasis and the regulation of disease pathogenesis. In recent years, there has been substantial progress in innovative techniques to measure miRNAs along with advances in targeted delivery of agents modulating their expression...
May 13, 2017: Archives of Toxicology
https://www.readbyqxmd.com/read/28495592/mir-21-promotes-fibrogenesis-in-peritoneal-dialysis
#2
Melisa Lopez-Anton, Mark Lambie, Manuel Lopez-Cabrera, Claus P Schmitt, Vicente Ruiz-Carpio, Maria Bartosova, Betti Schaefer, Simon Davies, Timothy Stone, Robert Jenkins, Philip R Taylor, Nicholas Topley, Timothy Bowen, Donald Fraser
Peritoneal dialysis (PD) is a life-saving form of renal replacement therapy for those with end-stage kidney disease. Mesothelial cells (MCs) line the peritoneal cavity and help define peritoneal response to treatment-associated injury, a major reason for treatment failure. miRNAs are important regulators, but their roles in peritoneal fibrosis are largely unknown. In this study, miR-21 was one of the most abundant miRNAs in primary MCs, and was up-regulated by the profibrotic cytokine transforming growth factor-β1 and in PD effluent-derived MCs exhibiting mesenchymal phenotypic change...
May 8, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28489271/successful-treatment-of-kshv-inflammatory-cytokine-syndrome-kics-after-kidney-liver-transplant-correlations-with-hhv8-mirnome-and-specific-t-cell-response
#3
Alessandra Mularoni, Alessia Gallo, Giovanni Riva, Patrizia Barozzi, Monica Miele, Giovanni Cardinale, Giovanni Vizzini, Riccardo Volpes, Paolo Grossi, Daniele Di Carlo, Angelo Luca, Tommaso Trenti, Mario Luppi, Pier Giulio Conaldi
In post-transplant patients, HHV-8/KSHV infection is known to cause aggressive tumors, as well as severe non-neoplastic complications. These latter syndromes are driven by HHV-8/KSHV lytic reactivations and related hyper-inflammatory host responses, typically characterized by high viral loads, elevated levels of cytokines and other inflammation biomarkers, cytopenia, organ failure, high fever, and worsening conditions (with no evidence of B-cell neoplasias). These disorders are associated with a high mortality rate, often due to lack of prompt diagnosis, effective therapeutic approaches, and adequate follow up...
May 10, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28473886/unique-molecular-profile-of-exosomes-derived-from-primary-human-proximal-tubular-epithelial-cells-under-diseased-conditions
#4
Xiangju Wang, Ray Wilkinson, Katrina Kildey, Jeremy Potriquet, Jason Mulvenna, Richard J Lobb, Andreas Möller, Nicole Cloonan, Pamela Mukhopadhyay, Andrew J Kassianos, Helen Healy
Human proximal tubular epithelial cells (PTEC) of the kidney are known to respond to and mediate the disease process in a wide range of kidney diseases, yet their exosomal production and exosome molecular cargo remain a mystery. Here we investigate, for the first time, the production and molecular content of exosomes derived from primary human PTEC cultured under normal and diseased conditions representing a spectrum of in vivo disease severity from early inflammation, experienced in multiple initial kidney disease states, through to hypoxia, frequently seen in late stage chronic kidney disease (CKD) due to fibrosis and vascular compromise...
2017: Journal of Extracellular Vesicles
https://www.readbyqxmd.com/read/28471327/renal-regenerative-potential-of-different-extra-cellular-vesicle-populations-derived-from-bone-marrow-mesenchymal-stromal-cells
#5
Stefania Bruno, Marta Tapparo, Federica Collino, Giulia Chiabotto, Maria Chiara Deregibus, Rafael Soares Lindoso, Francesco Neri, Sharad Kholia, Sara Giunti, Sicheng Wen, Peter Quesenberry, Giovanni Camussi
Extra-cellular vesicles (EVs) derived from human bone marrow mesenchymal stromal cells (MSCs) promote the regeneration of kidneys in different animal models of AKI in a manner comparable to the cells of origin. However, due to the heterogeneity observed in the EVs isolated from MSC, it is unclear which population is responsible for the pro-regenerative effects. We therefore evaluated the effect of various EV-populations separated by differential ultracentrifugation (10K population enriched with microvesicles and 100K population enriched with exosomes) on AKI recovery...
May 4, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28469780/the-relationship-between-amniotic-fluid-mirnas-and-congenital-obstructive-nephropathy
#6
Juntao Xie, Yi Zhou, Wenzong Gao, Zuoqing Li, Zhe Xu, Li Zhou
Exosomes are small membrane vesicles with size of 30-100 nm, which were found in bodily fluids including amniotic fluid and saliva. The biological materials in exosomes, such as proteins and RNA, can be used as novel potential biomarkers for diagnostic assays. The purpose of this study was to assess whether exosomal microRNAs (miRNAs) could be used as biomarkers to prenatally diagnose congenital hydronephrosis and to evaluate fetal kidney function. Transmission electron microscopy (TEM), flow cytometry (FACS), and western-blot were applied to identify exosomes in the amniotic fluid from fetuses with congenital hydronephrosis and healthy controls...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28465356/microrna-497%C3%A2-suppress-renal-cell-carcinoma-by-targeting-vegfr-2-in-achn-cells
#7
Pengcheng Sun, Ziqi Wang, Luyao Yin, Xiangwei Zhu, Liang Liu, Yuwei Liu, Lechen Li, Wanhai Xu
Background: Abnormal expression of microRNAs (miRNAs) contributed to cancers through regulating proliferation, apoptosis and drug resistance of cancer cells. The present study was designed to investigate the effect of microRNA-497 on renal cell carcinoma and possible mechanism. Methods:  Forty paired clear cell renal cell carcinoma tissues and adjacent normal kidney tissues were obtained from patients, who were not treated by chemotherapy or radiotherapy. RT-PCR was performed to detect expression of miR-497 in the ccRCC tissues...
May 2, 2017: Bioscience Reports
https://www.readbyqxmd.com/read/28460582/comprehensive-analysis-of-circulating-microrna-specific-to-the-liver-heart-and-skeletal-muscle-of-cynomolgus-monkeys
#8
Takuma Iguchi, Noriyo Niino, Satoshi Tamai, Ken Sakurai, Kazuhiko Mori
Circulating microRNAs (miRNAs) could represent sensitive and specific biomarkers for tissue injury. However, their utility as biomarkers in nonclinical toxicological studies using nonhuman primates is limited by a lack of information on their organ specificity and circulating levels under resting condition of the animals. Herein, liver, heart, and skeletal muscle-specific expression patterns of miRNAs were determined in 27 tissues/organs from male and female monkeys (n =2/sex) by next-generation sequencing (NGS) analysis...
January 1, 2017: International Journal of Toxicology
https://www.readbyqxmd.com/read/28460073/regulation-of-mir-29b-and-mir-30c-by-vitamin-d-receptor-activators-contributes-to-attenuate-uraemia-induced-cardiac-fibrosis
#9
Sara Panizo, Natalia Carrillo-López, Manuel Naves-Díaz, Guillermo Solache-Berrocal, Laura Martínez-Arias, Raúl R Rodrigues-Díez, Amalia Fernández-Vázquez, Carlos Martínez-Salgado, Marta Ruiz-Ortega, Adriana Dusso, Jorge B Cannata-Andía, Isabel Rodríguez
Background.: Uraemic cardiomyopathy, a process mainly associated with increased myocardial fibrosis, is the leading cause of death in chronic kidney disease patients and can be prevented by vitamin D receptor activators (VDRAs). Since some microRNAs (miRNAs) have emerged as regulators of the fibrotic process, we aimed to analyse the role of specific miRNAs in VDRA prevention of myocardial fibrosis as well as their potential use as biomarkers. Methods.: Wistar rats were nephrectomized and treated intraperitoneally with equivalent doses of two VDRAs: calcitriol and paricalcitol...
April 28, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28446592/bim-gene-dosage-is-critical-in-modulating-nephron-progenitor-survival-in-the-absence-of-micrornas-during-kidney-development
#10
Débora M Cerqueira, Andrew J Bodnar, Yu Leng Phua, Rachel Freer, Shelby L Hemker, Loren D Walensky, Neil A Hukriede, Jacqueline Ho
Low nephron endowment at birth has been associated with an increased risk for developing hypertension and chronic kidney disease. We demonstrated in an earlier study that conditional deletion of the microRNA (miRNA)-processing enzyme Dicer from nephron progenitors results in premature depletion of the progenitors and increased expression of the proapoptotic protein Bim (also known as Bcl-2L11). In this study, we generated a compound mouse model with conditional deletion of both Dicer and Bim, to determine the biologic significance of increased Bim expression in Dicer-deficient nephron progenitors...
April 26, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28445717/hepatic-elovl6-mrna-is-regulated-by-the-gga-mir-22-3p-in-egg-laying-hen
#11
Zheng Ma, Hong Li, Hang Zheng, Keren Jiang, Fengbin Yan, Yadong Tian, Xiangtao Kang, Yanbin Wang, Xiaojun Liu
The elongation of very long chain fatty acids protein 6 (ELOVL6) encodes a fatty acid elongase that is responsible for the final step in endogenous saturated fatty acid synthesis and involves in de novo lipogenesis. Though the regulatory mechanism of ELOVL6 expression has been studied extensively, little is known about the role of miRNA in regulating ELOVL6 gene expression in chicken until now. To investigate the regulatory mechanism of miRNA on the expression of ELOVL6 gene, bioinformatics analysis was employed to predict the potential miRNAs that binding with the 3'untranslated region (3'UTR) of ELOVL6...
April 23, 2017: Gene
https://www.readbyqxmd.com/read/28436605/digeorge-like-syndrome-in-a-child-with-a-3p12-3-deletion-involving-mir4273-gene-born-to-a-mother-with-gestational-diabetes-mellitus
#12
Emilia Cirillo, Giuliana Giardino, Vera Gallo, Giovanni Galasso, Roberta Romano, Roberta D'Assante, Giulia Scalia, Luigi Del Vecchio, Lucio Nitsch, Rita Genesio, Claudio Pignata
Chromosome 22q11.2 deletion is the most common chromosomal alteration associated with DiGeorge syndrome (DGS), even though this is not the only underlying cause of DGS. In rare patients, mutations in a single gene, TBX1, have been described resulting in a DGS phenotype. Recently, it has been reported that at least part of the TBX1 mutant phenotype is due to excessive bone morphogenetic proteins (BMP) signaling. Evidence suggests that miRNA may modulate the expression of critical T-box transcriptional regulators during midface development and Bmp-signaling...
April 24, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28434690/assessment-of-potential-mirna-biomarkers-of-vero-cell-tumorigenicity-in-a-new-line-agmk1-9t7-of-african-green-monkey-kidney-cells
#13
Belete Teferedegne, Daniel M Rotroff, Juliete Macauley, Gideon Foseh, Gladys Lewis, Alison Motsinger-Rief, Andrew M Lewis
Patterns of microRNA expression appear to delineate the process of spontaneous neoplastic development-transformation (SPNDT) occurring in the African green monkey kidney (AGMK) VERO cell line (Teferedegne et al., 2010). Analysis of microarray data identified 6 microRNAs whose high-level of expression peaked when the World Health Organization 10-87 VERO cells became tumorigenic at passage (p) 190. Six miRNAs were identified as potential biomarkers for the expression of the VERO-cell tumorigenic phenotype (Teferedegne et al...
April 20, 2017: Vaccine
https://www.readbyqxmd.com/read/28432832/profiling-microrna-from-nephrectomy-and-biopsy-specimens-predictors-of-progression-and-survival-in-clear-cell-renal-cell-carcinoma
#14
Casey G Kowalik, Drew A Palmer, Travis B Sullivan, Patrick A Teebagy, John M Dugan, John A Libertino, Eric J Burks, David Canes, Kimberly M Rieger-Christ
OBJECTIVE: To identify miRNA characteristic of metastatic clear cell renal cell carcinoma (ccRCC) and those indicative of cancer specific survival in nephrectomy and biopsy specimens. We also sought to determine if a miRNA panel could differentiate benign from ccRCC tissue. MATERIALS AND METHODS: RNA was isolated from nephrectomy and kidney biopsy specimens (n=156; n=46 respectively). Samples were grouped: benign, non-progressive and progressive ccRCC. MiRNA were profiled by microarray and validated by qRT-PCR...
April 22, 2017: BJU International
https://www.readbyqxmd.com/read/28430525/differential-expression-of-mir-202-and-validation-of-predicted-target-genes-in-the-skin-tissue-of-c57bl-6-black-mice-and-balb-c-white-mice
#15
Lei Qu, Jianping Li, Zhihui Zhao, Huaizhi Jiang, Qiaoling Zhang
In recent years, with the need of the fur industry to obtain greater quantities of high-quality fur and the research of hair follicle development attracting greater attention, the role of miRNAs in hair follicle development has become a field of intense interest. miRNAs are short length RNAs that affect gene regulation by binding to the 3'-untranslated region (3'UTR) of the mRNAs of certain target genes. This study predicted and validated the target genes of miR-202 in the skin tissue of C57BL/6 black mice and BALB/c white mice...
April 21, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28410618/liquid-biopsy-a-step-forward-towards-precision-medicine-in-urologic-malignancies
#16
REVIEW
Ashley Di Meo, Jenni Bartlett, Yufeng Cheng, Maria D Pasic, George M Yousef
There is a growing trend towards exploring the use of a minimally invasive "liquid biopsy" to identify biomarkers in a number of cancers, including urologic malignancies. Multiple aspects can be assessed in circulating cell-free DNA, including cell-free DNA levels, integrity, methylation and mutations. Other prospective liquid biopsy markers include circulating tumor cells, circulating RNAs (miRNA, lncRNAs and mRNAs), cell-free proteins, peptides and exosomes have also emerged as non-invasive cancer biomarkers...
April 14, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28399020/therapeutic-micrornas-in-polycystic-kidney-disease
#17
Matanel Yheskel, Vishal Patel
PURPOSE OF REVIEW: microRNAs (miRNAs) are short noncoding RNAs that function as sequence-specific inhibitors of gene expression. Autosomal dominant polycystic kidney disease (ADPKD) is the most frequent genetic cause of end-stage kidney failure with limited treatment options. The realization that miRNA upregulation, and thus its gain-of-function, can drive the progression of ADPKD has raised the possibility that anti-miRs represent a novel drug class for this disorder. RECENT FINDINGS: A common set of miRNAs are aberrantly expressed in various murine models of polycystic kidney disease...
April 8, 2017: Current Opinion in Nephrology and Hypertension
https://www.readbyqxmd.com/read/28396121/antagonism-of-profibrotic-microrna-21-improves%C3%A2-outcome-of-murine-chronic-renal-allograft-dysfunction
#18
Celina Schauerte, Anika Hübner, Song Rong, Shijun Wang, Nelli Shushakova, Michael Mengel, Angela Dettling, Claudia Bang, Kristian Scherf, Malte Koelling, Anette Melk, Hermann Haller, Thomas Thum, Johan M Lorenzen
Chronic renal allograft dysfunction (CAD) is a major limiting factor of long-term graft survival. It is characterized by interstitial fibrosis and tubular atrophy. The underlying pathomechanisms are incompletely understood. MicroRNAs are powerful regulators of gene expression and may have an impact on various diseases by direct mRNA decay or translational inhibition. A murine model of allogenic kidney transplantation was used resulting in CAD at 6 weeks after kidney transplantation. We identified fibrosis-associated miR-21a-5p by whole miRNAome expression analysis to be among the most highly upregulated miRNAs...
April 8, 2017: Kidney International
https://www.readbyqxmd.com/read/28389707/the-race-of-10-synthetic-rnai-based-drugs-to-the-pharmaceutical-market
#19
REVIEW
Ricardo Titze-de-Almeida, Catherine David, Simoneide Souza Titze-de-Almeida
Ten years after Fire and Melo's Nobel Prize for discovery of gene silencing by double-stranded RNA, a remarkable progress was achieved in RNA interference (RNAi). Changes in the chemical structure of synthetic oligonucleotides make them more stable and specific, and new delivery strategies became progressively available. The attention of pharmaceutical industry rapidly turned to RNAi, as an opportunity to explore new drug targets. This review addresses nine small-interfering RNAs (siRNAs) and one unique microRNA (miRNA) inhibitor, which entered the phase 2-3 clinical trials...
April 7, 2017: Pharmaceutical Research
https://www.readbyqxmd.com/read/28364255/microrna-184-is-a-downstream-effector-of-albuminuria-driving-renal-fibrosis-in-rats-with-diabetic-nephropathy
#20
Cristina Zanchi, Daniela Macconi, Piera Trionfini, Susanna Tomasoni, Daniela Rottoli, Monica Locatelli, Michael Rudnicki, Jo Vandesompele, Pieter Mestdagh, Giuseppe Remuzzi, Ariela Benigni, Carlamaria Zoja
AIMS/HYPOTHESIS: Renal fibrosis is a common complication of diabetic nephropathy and is a major cause of end-stage renal disease. Despite the suggested link between renal fibrosis and microRNA (miRNA) dysregulation in diabetic nephropathy, the identification of the specific miRNAs involved is still incomplete. The aim of this study was to investigate miRNA profiles in the diabetic kidney and to identify potential downstream targets implicated in renal fibrosis. METHODS: miRNA expression profiling was investigated in the kidneys of 8-month-old Zucker diabetic fatty (ZDF) rats during overt nephropathy...
March 31, 2017: Diabetologia
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