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https://www.readbyqxmd.com/read/28806192/micrornas-as-biomarkers-in-chronic-kidney-disease
#1
Alexa Wonnacott, Timothy Bowen, Donald J Fraser
PURPOSE OF REVIEW: This review summarizes recent data supporting the concept that urinary microRNAs are a useful new class of biomarker. They may improve capacity to stratify patients with chronic kidney disease according to risk of progression, and may also inform about response to therapy. RECENT FINDINGS: MicroRNAs are present, stable and readily quantifiable in tissues and body fluids, including urine, and have widespread importance as regulators in the kidney...
August 12, 2017: Current Opinion in Nephrology and Hypertension
https://www.readbyqxmd.com/read/28794294/upregulated-expression-of-circulating-micrornas-in-kidney-transplant-recipients-with-interstitial-fibrosis-and-tubular-atrophy
#2
Sepideh Zununi Vahed, Ahmad Poursadegh Zonouzi, Hossein Ghanbarian, Moteza Ghojazadeh, Nasser Samadi, Mohammadreza Ardalan
INTRODUCTION: The discovery of circulating microRNAs (miRNAs), as potential noninvasive diagnostic biomarkers, has opened new avenues of research for identifying transplant patients with chronic allograft dysfunction. The present study aimed to investigate the expression levels of 4 immune-related miRNAs, miR-21, miR-31, miR-142-3p, and miR-155, in plasma samples of kidney allograft recipients. MATERIALS AND METHODS: The plasma expression levels of the miRNAs were evaluated by quantitative real-time polymerase chain reaction in 53 kidney recipients with long-term stable allograft function (n = 27), biopsy-proven interstitial fibrosis and tubular atrophy (n = 26), and healthy controls (n = 15)...
July 2017: Iranian Journal of Kidney Diseases
https://www.readbyqxmd.com/read/28776684/characterization-and-assessment-of-potential-micrornas-involved-in-phosphate-induced-aortic-calcification
#3
Maya Fakhry, Najwa Skafi, Mohammad Fayyad-Kazan, Firas Kobeissy, Eva Hamade, Saida Mebarek, Aida Habib, Nada Borghol, Asad Zeidan, David Magne, Hussein Fayyad-Kazan, Bassam Badran
Medial artery calcification, a hallmark of type 2 diabetes mellitus and chronic kidney disease (CKD), is known as an independent risk factor for cardiovascular mortality and morbidity. Hyperphosphatemia associated with CKD is a strong stimulator of vascular calcification but the molecular mechanisms regulating this process remain not fully understood. We showed that calcification was induced after exposing Sprague-Dawley rat aortic explants to high inorganic phosphate level (Pi , 6 mM) as examined by Alizarin red and Von Kossa staining...
August 4, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28771472/micrornas-in-the-mir-17-and-mir-15-families-are-downregulated-in-chronic-kidney-disease-with-hypertension
#4
Priyanka Nandakumar, Adrienne Tin, Megan L Grove, Jianzhong Ma, Eric Boerwinkle, Josef Coresh, Aravinda Chakravarti
BACKGROUND: In older adults (aged 70-74 years), African-Americans have 4-fold higher risk of developing hypertension-attributed end-stage renal disease (ESRD) than European-Americans. A hypothesized mechanism linking hypertension and progressive chronic kidney disease (CKD) is the innate immune response and inflammation. Persons with CKD are also more susceptible to infection. Gene expression in peripheral blood can provide a view of the innate immune activation profile. We aimed to identify differentially expressed genes, microRNAs, and pathways in peripheral blood between cases with CKD and high blood pressure under hypertension treatment versus controls without CKD and with controlled blood pressure in African Americans...
2017: PloS One
https://www.readbyqxmd.com/read/28760335/microrna-21-regulates-peroxisome-proliferator-activated-receptor-alpha-a-molecular-mechanism-of-cardiac-pathology-in-cardiorenal-syndrome-type-4
#5
Sandra Chuppa, Mingyu Liang, Pengyuan Liu, Yong Liu, Marc C Casati, Allen W Cowley, Leah Patullo, Alison J Kriegel
Cardiovascular events are the leading cause of death in patients with chronic kidney disease (CKD), although the pathological mechanisms are poorly understood. Here we longitudinally characterized left ventricle pathology in a 5/6 nephrectomy rat model of CKD and identify novel molecular mediators. Next-generation sequencing of left ventricle mRNA and microRNA (miRNA) was performed at physiologically distinct points in disease progression, identifying alterations in genes in numerous immune, lipid metabolism, and inflammatory pathways, as well as several miRNAs...
July 28, 2017: Kidney International
https://www.readbyqxmd.com/read/28754866/mir-195-5p-is-critical-in-reg%C3%AE-mediated-regulation-of-wnt-%C3%AE-catenin-pathway-in-renal-cell-carcinoma
#6
Shaojun Chen, Longsheng Wang, Xudong Yao, Hui Chen, Chen Xu, Lu Tong, Abdussaboor Shah, Tingmei Huang, Geng Chen, Jiwei Chen, Tie-Long Liu, Xiao-Tao Li, Jun-Hua Zheng, Lei Li
Renal cell carcinoma (RCC) is the most prevalent malignancy of kidney and accounts for approximately 4% of all cancer diagnoses in adults. Previous studies demonstrated microRNA-195-5p (miR-195-5p) as a tumor suppressor which is deregulated in many human cancers. However, the role of miR-195-5p in RCC is largely unknown. In the present study, we demonstrated that miR-195-5p was downregulated and negatively correlated with advanced clinical stage in RCC. Overexpression of miR-195-5p significantly suppressed RCC cells growth in vitro and in vivo, induced apoptosis and enhanced chemosensitivity to sorafenib...
July 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28750453/overexpression-of-microrna-106b-5p-attenuates-kidney-injuries-after-deep-hypothermic-circulatory-arrest-in-rats
#7
Lei Yu, Tianxiang Gu, Yu Liu, Xuan Jiang, Enyi Shi
No abstract text is available yet for this article.
July 27, 2017: Thoracic and Cardiovascular Surgeon
https://www.readbyqxmd.com/read/28748478/urine-exosome-isolation-and-characterization
#8
Jonathan M Street, Erik H Koritzinsky, Deonna M Glispie, Peter S T Yuen
Exosomes are nanometer-scale, membrane-enclosed vesicles that can potentially be used to detect nephrotoxicity, and reveal the subsequent response of the kidney. Epithelial cells of every nephron segment can contribute to the urinary exosome population, which is rich in potential biomarkers, including membrane proteins such as transporters and receptors, transcription factors, and microRNAs. These exosomal biomarkers may be up- or downregulated upon nephrotoxicant exposure. Exosome isolation is an area of ongoing research...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28728223/-expression-and-bioinformatics-analysis-of-long-chain-non-coding-rna-pvt1-in-tumors
#9
M Wang, W Gao, Y F Bai, D H Lu, L H Teng
Objective: To study the expression and mechanism of long-chain non-coding RNA PVT1 in tumor by bioinformatics analysis and experimental verification, and to provide new ideas for the study of the pathogenesis of tumors. Methods: The expression of PVT1 in 14 common tumors was downloaded from starBase v2.0 public database, which also was verified by PVT1 RNA-in situ hybridization.The upstream transcription factors, the downstream target microRNA(miRNA) for PVT1 and the target genes for the target miRNAs were predicted and analyzed by using bioinformatics based on the database of UCSC Genome Browser, HMDD v2...
July 8, 2017: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/28727756/dysregulation-of-micrornas-and-renin-angiotensin-system-in-high-salt-diet-induced-cardiac-dysfunction-in-uninephrectomized-rats
#10
Venkateswara Rao Amara, Sunil Kumar Surapaneni, Kulbhushan Tikoo
Uninephrectomy is not associated with major adverse events in cardiovascular and renal functions of live kidney donors. The effect of high salt diet on the quality of life of live kidney donors is largely unknown. Hence in this study, we aimed to determine the effect of high salt diet on the alterations of renin-angiotensin system and microRNAs leading to CV and renal dysfunction in uninephrectomized rats. In order to mimic clinical scenario, uninephrectomized male Sprague Dawley rats were fed initially with normal pellet diet for 12 weeks and then for 20 weeks with high salt (10% w/w NaCl) diet...
2017: PloS One
https://www.readbyqxmd.com/read/28723865/microrna-106b-5p-regulates-cisplatin-chemosensitivity-by-targeting-polycystic-kidney-disease-2-in-non-small-cell-lung-cancer
#11
Shaorong Yu, Xiaobing Qin, Tingting Chen, Leilei Zhou, Xiaoyue Xu, Jifeng Feng
Systemic therapy with cytotoxic agents remains one of the main treatment methods for non-small-cell lung cancer (NSCLC). Cisplatin is a commonly used chemotherapeutic agent, that, when combined with other drugs, is an effective treatment for NSCLC. However, effective cancer therapy is hindered by a patient's resistance to cisplatin. Unfortunately, the potential mechanism underlying such resistance remains unclear. In this study, we explored the mechanism of microRNA-106b-5p (miR-106b-5p), which is involved in the resistance to cisplatin in the A549 cell line of NSCLC...
July 18, 2017: Anti-cancer Drugs
https://www.readbyqxmd.com/read/28719617/microrna-155-deficiency-leads-to-decreased-autoantibody-levels-and-reduced-severity-of-nephritis-and-pneumonitis-in-pristane-induced-lupus
#12
Harald Leiss, Wilhelm Salzberger, Barbara Jacobs, Irina Gessl, Nicolas Kozakowski, Stephan Blüml, Antonia Puchner, Attila Kiss, Bruno K Podesser, Josef S Smolen, Georg H Stummvoll
OBJECTIVE: We herein examine the role of endogenous miR155 in the development of systemic manifestations in pristane induced lupus. MATERIALS AND METHODS: Systemic lupus in miR155-deficient and wild type mice was induced upon injection of pristane and analyzed after 8 months, PBS-injected mice served as controls. Glomerulonephritis and pneumonitis were quantified using the kidney biopsy score and a newly adapted histomorphometric image analysis system; lung tissue was further analyzed by tissue cytometry...
2017: PloS One
https://www.readbyqxmd.com/read/28714373/targeting-mir-21-decreases-expression-of-multi-drug-resistant-genes-and-promotes-chemosensitivity-of-renal-carcinoma
#13
Kelly Gaudelot, Jean-Baptiste Gibier, Nicolas Pottier, Brigitte Hémon, Isabelle Van Seuningen, François Glowacki, Xavier Leroy, Christelle Cauffiez, Viviane Gnemmi, Sébastien Aubert, Michaël Perrais
Renal cell carcinoma, the most common neoplasm of adult kidney, accounts for about 3% of adult malignancies and is usually highly resistant to conventional therapy. MicroRNAs are a class of small non-coding RNAs, which have been previously shown to promote malignant initiation and progression. In this study, we focused our attention on miR-21, a well described oncomiR commonly upregulated in cancer. Using a cohort of 99 primary renal cell carcinoma samples, we showed that miR-21 expression in cancer tissues was higher than in adjacent non-tumor tissues whereas no significant difference was observed with stages, grades, and metastatic outcome...
July 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28714020/potential-role-of-upregulated-microrna%C3%A2-146b-and-%C3%A2-21-in-renal-fibrosis
#14
Guangda Xin, Guangyu Zhou, Xiaofei Zhang, Wanning Wang
The aim of the present study was to identify candidate microRNAs (miRNAs) involved in the progression of renal fibrosis. Dataset GSE42716 of miRNAs extracted from kidneys from mice with unilateral ureteral obstruction (UUO), and mice without UUO was downloaded from the Gene Expression Omnibus database. The Limma package was used to identify differential expression between mice with and without UUO. Renal disease‑related miRNAs were predicted based on the miRWalk database. Thereafter, candidate miRNAs were screened by taking the intersection of differentially expressed miRNAs and predicted miRNAs, followed by screening of target genes using miRWalk and transcription factors using the TransmiR database...
September 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28711463/modulation-of-atlantic-salmon-mirnome-response-to-sea-louse-infestation
#15
REVIEW
Valentina Valenzuela-Muñoz, Beatriz Novoa, Antonio Figueras, Cristian Gallardo-Escárate
MicroRNAs are non-coding RNA that plays a crucial role in post-transcriptional regulation and immune system regulation. On other hand, sea lice are prevalent parasites that affect salmon farming, generating different degrees of immune suppression depending on the salmon and sea louse species. Caligus rogercresseyi for example, which affects the salmon industry in Chile, decreases Th1 response, macrophage activation, TLR-mediated response and iron regulation in infected fish. In this study, we explore Atlantic salmon miRNome during infestation by C...
July 12, 2017: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/28706977/acute-rejection-after-kidney-transplantation-associates-with-circulating-micrornas-and-vascular-injury
#16
Roel Bijkerk, Barend W Florijn, Meriem Khairoun, Jacques M G J Duijs, Gurbey Ocak, Aiko P J de Vries, Alexander F Schaapherder, Marko J K Mallat, Johan W de Fijter, Ton J Rabelink, Anton Jan van Zonneveld, Marlies E J Reinders
BACKGROUND: Acute rejection (AR) of kidney transplants is associated with the loss of endothelial integrity, microvascular rarefaction and, ultimately, graft dysfunction. Circulating angiogenic microRNAs (miRNAs) may serve as markers for microvascular injury. Here, we investigated the short- and long-term effects of AR after kidney transplantation on systemic vascular injury and the associated circulating miRNA profile. METHODS: Systemic vascular injury was determined by measuring capillary tortuosity and density within the oral mucosa as well as by assessing circulating levels of angiopoietin-2/angiopoietin-1 ratio, vascular endothelial growth factor and soluble thrombomodulin...
July 2017: Transplantation Direct
https://www.readbyqxmd.com/read/28700503/mir-210-and-mir-155-as-potential-diagnostic-markers-for-pre-eclampsia-pregnancies
#17
Lu Gan, Zheng Liu, Ming Wei, Yulong Chen, Xiaomei Yang, Lihong Chen, Xiaomin Xiao
Pre-eclampsia (PE) is one of the leading causes of maternal and neonatal morbidity and mortality. In recent years, many studies have shown that microRNAs (miRNA) play important roles in the development of PE. However, the molecular pathogenesis of PE remains unknown.In the present study, we performed a case-control study to verify the differential expression of 4 candidate miRNAs (miR-210, miR-155, miR-125b-5p, and miR-125a-5p) in 20 PE pregnancies and 20 healthy pregnancies. The real-time quantitative reverse transcriptase-polymerase chain reaction has been utilized to estimate the Ct values in both groups...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28698161/evolutionary-conservation-and-expression-of-mir-10a-3p-in-olive-flounder-and-rock-bream
#18
Ara Jo, Jennifer Im, Hee-Eun Lee, Dongmin Jang, Gyu-Hwi Nam, Anshuman Mishra, Woo-Jin Kim, Won Kim, Hee-Jae Cha, Heui-Soo Kim
MicroRNAs (miRNAs) are small non-coding RNAs (ncRNAs) that mainly bind to the seed sequences located within the 3' untranslated region (3' UTR) of target genes. They perform an important biological function as regulators of gene expression. Different genes can be regulated by the same miRNA, whilst different miRNAs can be regulated by the same genes. Here, the evolutionary conservation and expression pattern of miR-10a-3p in olive flounder and rock bream was examined. Binding sites (AAAUUC) to seed region of the 3' UTR of target genes were highly conserved in various species...
July 8, 2017: Gene
https://www.readbyqxmd.com/read/28696247/microrna-92a-mediates-endothelial-dysfunction-in-ckd
#19
Fenqing Shang, Shen-Chih Wang, Chien-Yi Hsu, Yifei Miao, Marcy Martin, Yanjun Yin, Chih-Cheng Wu, Yun-Ting Wang, Gaihong Wu, Shu Chien, Hsien-Da Huang, Der-Cherng Tarng, Yan-Ting Shiu, Alfred K Cheung, Po-Hsun Huang, Zhen Chen, John Y-J Shyy
CKD is an independent risk factor for cardiovascular disease (CVD). The accumulation of uremic toxins in CKD induces oxidative stress and endothelial dysfunction. MicroRNA-92a (miR-92a) is induced by oxidative stress in endothelial cells (ECs) and involved in angiogenesis and atherosclerosis. We investigated a role for oxidative stress-responsive miR-92a in CKD. Our study of patients at three clinical sites showed increased serum miR-92a level with decreased kidney function. In cultured ECs, human CKD serum or uremic toxins (such as indoxyl sulfate), compared with non-CKD serum, induced the levels of miR-92a and suppressed the expression of miR-92a targets, including key endothelial-protective molecules...
July 10, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28695984/triptolide-prevents-extracellular-matrix-accumulation-in-experimental-diabetic-kidney-disease-by-targeting-microrna-137-notch1-pathway
#20
Fei Han, Shanshan Wang, Yunpeng Chang, Chunjun Li, Juhong Yang, Zhe Han, Baocheng Chang, Bei Sun, Liming Chen
MicroRNAs (miRNAs) are involved in multiple biological functions via suppressing target genes. Triptolide is a monomeric compound isolated from a traditional Chinese herb, which exerts protective roles in many kinds of glomerular diseases. However, our understanding of the triptolide effect on miRNAome is still limited. In this study, we found that triptolide significantly decreased albuminuria and improved glomerulosclerosis in rats with diabetic kidney disease (DKD). And triptolide also inhibited extracellular matrix (ECM) protein accumulation and the notch1 pathway activation under diabetic conditions...
July 11, 2017: Journal of Cellular Physiology
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