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Kidney microrna

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https://www.readbyqxmd.com/read/28213404/hydrogen-sulfide-alleviates-hypertensive-kidney-dysfunction-through-an-epigenetic-mechanism
#1
Gregory Weber, Sathnur Pushpakumar, Utpal Sen
Hypertension is a major risk factor for chronic kidney disease (CKD) and renal inflammation is an integral part in this pathology. Hydrogen sulfide (H2S) has been shown to mitigate renal damage through reduction in blood pressure and reactive oxygen species; however, the exact mechanisms are not clear. While several studies have underlined the role of epigenetics in renal inflammation and dysfunction, the mechanisms through which epigenetic regulators play role in hypertension are not well defined. In this study, we sought to identify if microRNAs are dysregulated in response to angiotensin-II (Ang-II) induced hypertension in the kidney and whether H2S donor, GYY 4137, could reverse the microRNA alteration and kidney function...
February 17, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28208010/circulating-plasma-and-exosomal-micrornas-as-indicators-of-drug-induced-organ-injury-in-rodent-models
#2
Young-Eun Cho, Sang-Hyun Kim, Byung-Heon Lee, Moon-Chang Baek
This study was performed to evaluate whether microRNAs (miRNAs) in circulating exosomes may serve as biomarkers of drug-induced liver, kidney, or muscle-injury. Quantitative PCR analyses were performed to measure the amounts of liver-specific miRNAs (miR-122, miR-192, and miR-155), kidney-specific miR-146a, or muscle-specific miR-206 in plasma and exosomes from mice treated with liver, kidney or muscle toxicants. The levels of liver-specific miRNAs in circulating plasma and exosomes were elevated in acetaminophen-induced liver injury and returned to basal levels by treatment with antioxidant N-acetyl-cysteine...
February 17, 2017: Biomolecules & Therapeutics
https://www.readbyqxmd.com/read/28205547/microrna-17-family-promotes-polycystic-kidney-disease-progression-through-modulation-of-mitochondrial-metabolism
#3
Sachin Hajarnis, Ronak Lakhia, Matanel Yheskel, Darren Williams, Mehran Sorourian, Xueqing Liu, Karam Aboudehen, Shanrong Zhang, Kara Kersjes, Ryan Galasso, Jian Li, Vivek Kaimal, Steven Lockton, Scott Davis, Andrea Flaten, Joshua A Johnson, William L Holland, Christine M Kusminski, Philipp E Scherer, Peter C Harris, Marie Trudel, Darren P Wallace, Peter Igarashi, Edmund C Lee, John R Androsavich, Vishal Patel
Autosomal dominant polycystic kidney disease (ADPKD) is the most frequent genetic cause of renal failure. Here we identify miR-17 as a target for the treatment of ADPKD. We report that miR-17 is induced in kidney cysts of mouse and human ADPKD. Genetic deletion of the miR-17∼92 cluster inhibits cyst proliferation and PKD progression in four orthologous, including two long-lived, mouse models of ADPKD. Anti-miR-17 treatment attenuates cyst growth in short-term and long-term PKD mouse models. miR-17 inhibition also suppresses proliferation and cyst growth of primary ADPKD cysts cultures derived from multiple human donors...
February 16, 2017: Nature Communications
https://www.readbyqxmd.com/read/28205387/fructose-down-regulates-mir-330-to-induce-renal-inflammatory-response-and-insulin-signaling-impairment-attenuation-by-morin
#4
Ting-Ting Gu, Lin Song, Tian-Yu Chen, Xin Wang, Xiao-Juan Zhao, Xiao-Qin Ding, Yan-Zi Yang, Ying Pan, Dong-Mei Zhang, Ling-Dong Kong
SCOPE: Fructose induces insulin resistance with kidney inflammation and injury. MicroRNAs (miRNAs) are emerged as key regulators of insulin signaling. Morin has insulin-mimetic effect with the improvement of insulin resistance and kidney injury. This study investigated the protective mechanisms of morin against fructose-induced kidney injury, with particular focus on miR-330 expression change, inflammatory response and insulin signaling impairment. METHODS AND RESULTS: miR-330, sphingosine kinase 1 (SphK1)/sphingosine-1-phosphate (S1P)/S1P receptor (S1PR)1/3 signaling, NF-κB/NOD-like receptor family, pyrin domain containing 3 (NLRP3) inflammasome and insulin signaling were detected in kidney cortex of fructose-fed rats and fructose-exposed HK-2 cells, respectively...
February 16, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28193507/identification-of-organ-tissue-types-and-skin-from-forensic-samples-by-microrna-expression-analysis
#5
Eva Sauer, Antje Extra, Philipp Cachée, Cornelius Courts
The identification of organ tissues in traces recovered from scenes and objects with regard to violent crimes involving serious injuries can be of considerable relevance in forensic investigations. Molecular genetic approaches are provably superior to histological and immunological assays in characterizing organ tissues, and micro-RNAs (miRNAs), due to their cell type specific expression patterns and stability against degradation, emerged as a promising molecular species for forensic analyses, with a range of tried and tested indicative markers...
February 5, 2017: Forensic Science International. Genetics
https://www.readbyqxmd.com/read/28181241/interplay-between-mirnas-and-human-diseases-a-review
#6
REVIEW
Prosenjit Paul, Anindya Chakraborty, Debasree Sarkar, Malobika Langthasa, Musfhia Rahman, Minakshi Bari, Rk Sanamacha Singha, Arup Kumar Malakar, Supriyo Chakraborty
MicroRNAs (miRNAs) are endogenous, non-coding RNAs, which have evoked a great deal of interest due to their importance in many aspects of homeostasis and diseases. MicroRNAs are stable and are essential components of gene regulatory networks. They play a crucial role in healthy individuals and their dysregulations have also been implicated in a wide range of diseases, including diabetes, cardiovascular disease, kidney disease and cancer. This review summarized the current understanding of interactions between miRNAs and different diseases and their role in disease diagnosis and therapy...
February 9, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28177900/mcmda-matrix-completion-for-mirna-disease-association-prediction
#7
Jian-Qiang Li, Zhi-Hao Rong, Xing Chen, Gui-Ying Yan, Zhu-Hong You
Nowadays, researchers have realized that microRNAs (miRNAs) are playing a significant role in many important biological processes and they are closely connected with various complex human diseases. However, since there are too many possible miRNA-disease associations to analyze, it remains difficult to predict the potential miRNAs related to human diseases without a systematic and effective method. In this study, we developed a Matrix Completion for MiRNA-Disease Association prediction model (MCMDA) based on the known miRNA-disease associations in HMDD database...
February 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/28152049/differentially-expressed-mir-3680-5p-is-associated-with-parathyroid-hormone-regulation-in-peritoneal-dialysis-patients
#8
Sohyun Jeong, Jung Mi Oh, Kook-Hwan Oh, In-Wha Kim
Mineral and bone disorder (MBD) is observed universally in patients with chronic kidney disease (CKD). Detrimental MBD-related skeletal changes include increased prevalence of fracture, cardiovascular disease, and mortality. MicroRNAs (miRNAs) have been identified as useful biomarkers in various diseases, and the aim of this study was to identify miRNAs associated with parathyroid hormone level in peritoneal dialysis (PD) patients. Fifty-two PD patients were enrolled and grouped by their intact parathyroid hormone (iPTH) level; 11 patients had low iPTH (<150 pg/mL) and 41 patients had high iPTH (≥150 pg/mL)...
2017: PloS One
https://www.readbyqxmd.com/read/28138701/hypoxia-induced-hsa-mir-101-promotes-glycolysis-by-targeting-tigar-mrna-in-clear-cell-renal-cell-carcinoma
#9
Xiaochao Xu, Chao Liu, Jinku Bao
Increasing evidence suggests that microRNAs (miRNAs) are essential in carcinogenesis, therefore, the present study investigated the role of hsa‑miR‑101 in renal tumorigenesis and cancer development. On identification of its expression pattern, it may serve as a diagnostic biomarker for clear cell renal cell carcinoma (ccRCC). In the present study, 10 pairs of ccRCC and noncancerous tissue samples were obtained to examine whether the expression of hsa‑miR‑101 is linked to cancer. The data obtained were validated using reverse transcription‑quantitative polymerase chain reaction analysis...
January 24, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28131796/alterations-in-microrna-expression-in-the-tissues-of-silver-carp-hypophthalmichthys-molitrix-following-microcystin-lr-exposure
#10
Yiyi Feng, Junguo Ma, Ruichen Xiang, Xiaoyu Li
In the field of toxicology, the relationship between microRNAs (miRNAs) and microcystin-LR (MC-LR) toxicity in fish is still poorly understood. In the present study, we used quantitative real-time PCR (qPCR) to examine the expression of 7 miRNAs (let-7b, miR-21, miR-122, miR-27b, miR-148, miR-125a, and miR-143) that play regulatory roles in biological processes such as signal transduction, apoptosis, cell cycle, and fatty acid metabolism. Expression patterns were assessed in the liver, spleen, and kidney of silver carp following 8, 24, and 48 h of exposure to MC-LR via intraperitoneal injection (50 or 200 μg/kg of body weight)...
January 25, 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/28129785/human-umbilical-cord-derived-mesenchymal-stromal-cells-protect-against-premature-renal-senescence-resulting-from-oxidative-stress-in-rats-with-acute-kidney-injury
#11
Camila Eleuterio Rodrigues, José Manuel Condor Capcha, Ana Carolina de Bragança, Talita Rojas Sanches, Priscila Queiroz Gouveia, Patrícia Aparecida Ferreira de Oliveira, Denise Maria Avancini Costa Malheiros, Rildo Aparecido Volpini, Mirela Aparecida Rodrigues Santinho, Bárbara Amélia Aparecida Santana, Rodrigo do Tocantins Calado, Irene de Lourdes Noronha, Lúcia Andrade
BACKGROUND: Mesenchymal stromal cells (MSCs) represent an option for the treatment of acute kidney injury (AKI). It is known that young stem cells are better than are aged stem cells at reducing the incidence of the senescent phenotype in the kidneys. The objective of this study was to determine whether AKI leads to premature, stress-induced senescence, as well as whether human umbilical cord-derived MSCs (huMSCs) can prevent ischaemia/reperfusion injury (IRI)-induced renal senescence in rats...
January 28, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28129112/therapeutic-mir-21-silencing-ameliorates-diabetic-kidney-disease-in-mice
#12
Malte Kölling, Tamas Kaucsar, Celina Schauerte, Anika Hübner, Angela Dettling, Joon-Keun Park, Martin Busch, Xaver Wulff, Matthias Meier, Kristian Scherf, Nóra Bukosza, Gábor Szénási, Mária Godó, Amit Sharma, Michael Heuser, Peter Hamar, Claudia Bang, Hermann Haller, Thomas Thum, Johan M Lorenzen
Diabetic nephropathy is the main cause of end-stage renal disease. MicroRNAs are powerful regulators of the genome, and global expression profiling revealed miR-21 to be among the most highly regulated microRNAs in kidneys of mice with diabetic nephropathy. In kidney biopsies of diabetic patients, miR-21 correlated with tubulointerstitial injury. In situ PCR analysis showed a specific enrichment of miR-21 in glomerular cells. We identified cell division cycle 25a (Cdc25a) and cyclin-dependent kinase 6 (Cdk6) as novel miR-21 targets in mesangial cells...
January 4, 2017: Molecular Therapy: the Journal of the American Society of Gene Therapy
https://www.readbyqxmd.com/read/28125729/association-of-serum-mir-142-3p-and-mir-101-3p-levels-with-acute-cellular-rejection-after-heart-transplantation
#13
Ihdina Sukma Dewi, Zsuzsanna Hollander, Karen K Lam, Janet-Wilson McManus, Scott J Tebbutt, Raymond T Ng, Paul A Keown, Robert W McMaster, Bruce M McManus, Olof Gidlöf, Jenny Öhman
BACKGROUND: Identifying non-invasive and reliable blood-derived biomarkers for early detection of acute cellular rejection in heart transplant recipients is of great importance in clinical practice. MicroRNAs are small molecules found to be stable in serum and their expression patterns reflect both physiological and underlying pathological conditions in human. METHODS: We compared a group of heart transplant recipients with histologically-verified acute cellular rejection (ACR, n = 26) with a control group of heart transplant recipients without allograft rejection (NR, n = 37) by assessing the levels of a select set of microRNAs in serum specimens...
2017: PloS One
https://www.readbyqxmd.com/read/28119452/microrna-375-is-induced-in-cisplatin-nephrotoxicity-to-repress-hepatocyte-nuclear-factor-1-beta
#14
Jielu Hao, Qiang Lou, Qingqing Wei, Shuqin Mei, Lin Li, Qing-Sheng Mi, Changlin Mei, Zheng Dong
Nephrotoxicity is a major adverse effect of cisplatin-mediated chemotherapy in cancer patients. The pathogenesis of cisplatin-induced nephrotoxicity remains largely unclear, making it difficult to design effective renoprotective approaches. Here, we have examined the role of microRNAs (miRNAs) in cisplatin-induced nephrotoxicity. We show that cisplatin nephrotoxicity was not affected by overall depletion of both beneficial and detrimental miRNAs from kidney proximal tubular cells in mice in which the miRNA-generating enzyme Dicer had been conditionally knocked out...
January 24, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28116733/renal-delivery-of-anti-microrna-oligonucleotides-in-rats
#15
Kristie S Usa, Yong Liu, Terry Kurth, Alison J Kriegel, David L Mattson, Allen W Cowley, Mingyu Liang
MicroRNAs are endogenous small, non-protein-coding RNA molecules that play an important role in the regulation of a wide variety of cellular functions and disease processes. A novel role for microRNAs in the development of hypertension and hypertensive tissue injury is emerging in recent studies. Development of hypertension involves multiple organ systems and cannot be modeled in vitro. Therefore, the ability to experimentally alter genes, gene products, or biological pathways, including microRNAs, in an organ-specific manner in intact animal models is particularly valuable to hypertension research...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28100783/dual-functional-roles-of-molecular-beacon-a-microrna-detector-and-inhibitor
#16
Wai Ming Li, Ching-Man Chan, Andrew L Miller, Chow H Lee
MicroRNAs are essential in many cellular processes. The ability to detect microRNAs is important for understanding its function and biogenesis. This study is aimed at using a molecular beacon to detect miR-430 in developing zebrafish embryos as a proof of principle. miR-430 is crucial for the clearance of maternal mRNA during maternal zygotic transition (MZT) in embryonic development. Despite its known function, the temporal and spatial expression of miR-430 remains unclear. We used various imaging techniques, including laser scanning confocal microscopy, spinning disk and lightsheet microscopy, to study the localization of miR-430 and any developmental defects possibly caused by the molecular beacon...
January 18, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28097825/signalling-pathways-involved-in-hypoxia-induced-renal-fibrosis
#17
REVIEW
Minna Liu, Xiaoxuan Ning, Rong Li, Zhen Yang, Xiaoxia Yang, Shiren Sun, Qi Qian
Renal fibrosis is the common pathological hallmark of progressive chronic kidney disease (CKD) with diverse aetiologies. Recent researches have highlighted the critical role of hypoxia during the development of renal fibrosis as a final common pathway in end-stage kidney disease (ESKD), which joints the scientist's attention recently to exploit the molecular mechanism underlying hypoxia-induced renal fibrogenesis. The scaring formation is a multilayered cellular response and involves the regulation of multiple hypoxia-inducible signalling pathways and complex interactive networks...
January 18, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28097824/mechanisms-of-metabolic-memory-and-renal-hypoxia-as-a-therapeutic-target-in-diabetic-kidney-disease
#18
REVIEW
Yosuke Hirakawa, Tetsuhiro Tanaka, Masaomi Nangaku
Diabetic kidney disease (DKD) is a worldwide public health problem. The definition of DKD is being under discussion. Although the term DKD was originally defined as "kidney disease specific to diabetes", DKD frequently means chronic kidney disease (CKD) with diabetes mellitus and includes not only classical diabetic nephropathy, but also kidney dysfunction due to nephrosclerosis and other causes. Metabolic memory plays a crucial role in the progression of various complications of diabetes, including DKD. The mechanisms of metabolic memory in DKD are supposed to include advanced glycation end products, DNA methylation, histone modifications, and non-coding RNA including microRNA...
January 17, 2017: Journal of Diabetes Investigation
https://www.readbyqxmd.com/read/28094285/urinary-exosomes-contain-micrornas-capable-of-paracrine-modulation-of-tubular-transporters-in-kidney
#19
Tannia Gracia, Xiaonan Wang, Ya Su, Elizabeth E Norgett, Timothy L Williams, Pablo Moreno, Gos Micklem, Fiona E Karet Frankl
Exosomes derived from all nephron segments are present in human urine, where their functionality is incompletely understood. Most studies have focused on biomarker discovery rather than exosome function. Through sequencing we identified the miRNA repertoire of urinary exosomes from healthy volunteers; 276 mature miRNAs and 345 pre-miRNAs were identified (43%/7% of reads). Among the most abundant were members of the miR-10, miR-30 and let-7 families. Targets for the identified miRNAs were predicted using five different databases; genes encoding membrane transporters and their regulators were enriched, highlighting the possibility that these miRNAs could modulate key renal tubular functions in a paracrine manner...
January 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28089712/effect-of-heme-oxygenase-1-on-ochratoxin-a-induced-nephrotoxicity-in-mice
#20
Agnieszka Loboda, Anna Stachurska, Paulina Podkalicka, Mateusz Sobczak, Olga Mucha, Agnieszka Witalisz-Siepracka, Alicja Jozkowicz, Jozef Dulak
Heme oxygenase-1 (HO-1), a heme-degrading enzyme, is suggested to play an important role in kidney pathophysiology, mostly due to its anti-fibrotic, anti-apoptotic and anti-oxidant properties. One of the mycotoxin, ochratoxin A (OTA) was previously shown to affect HO-1 expression, however, the mechanisms of OTA-induced nephrotoxicity during HO-1 deficiency are unknown. We have shown that OTA regulates the number of pro-fibrotic, pro-inflammatory, anti-oxidative and pro-apoptotic factors in HO-1 dependent manner, as the lack of HO-1 accelerates whereas the induction of HO-1 expression by cobalt protoporphyrin (CoPP) attenuates nephrotoxic effect of OTA...
January 9, 2017: International Journal of Biochemistry & Cell Biology
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